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When you need a destination that isn't covered, you write your own.",[545,559,560],{},"Two factories cover every case:",[562,563,564,577],"table",{},[565,566,567],"thead",{},[568,569,570,574],"tr",{},[571,572,573],"th",{},"You have…",[571,575,576],{},"Use",[578,579,580,599],"tbody",{},[568,581,582,591],{},[583,584,585,586,590],"td",{},"An HTTP backend (REST, JSON ingest, vendor ",[587,588,589],"code",{},"\u002Fv1\u002Flogs"," endpoint)",[583,592,593],{},[554,594,596],{"href":595},"#definehttpdrain-the-http-recipe",[587,597,598],{},"defineHttpDrain",[568,600,601,604],{},[583,602,603],{},"A non-HTTP transport (gRPC, WebSocket, vendor SDK, queue, raw socket)",[583,605,606],{},[554,607,609],{"href":608},"#definedrain-non-http-transports",[587,610,611],{},"defineDrain",[545,613,614,615,618],{},"Both come from ",[587,616,617],{},"evlog\u002Ftoolkit"," and are the exact factories every built-in adapter uses.",[620,621,625,628,727],"prompt",{":actions":622,"description":623,"icon":624},"[\"copy\",\"cursor\",\"claude\"]","Build a custom evlog drain","i-lucide-code-2",[545,626,627],{},"Build a custom evlog drain that ships wide events to a backend without a built-in adapter.",[629,630,631,646,657,672,690,705,710,720],"ul",{},[632,633,634,635,638,639,641,642,645],"li",{},"For HTTP backends, use ",[587,636,637],{},"defineHttpDrain({ name, resolve, encode })"," from ",[587,640,617],{},", and never call ",[587,643,644],{},"fetch"," directly",[632,647,648,649,652,653,656],{},"For non-HTTP transports (queue, DB, native SDK, raw socket), use ",[587,650,651],{},"defineDrain({ name, send })"," and implement ",[587,654,655],{},"send(events)"," myself",[632,658,659,660,663,664,667,668,671],{},"Resolve config lazily inside ",[587,661,662],{},"resolve()"," via ",[587,665,666],{},"resolveAdapterConfig(namespace, fields, overrides)"," so users get the standard precedence (overrides → ",[587,669,670],{},"runtimeConfig.evlog.\u003Cns>"," → env)",[632,673,674,675,678,679,682,683,686,687],{},"Use the standardized field names: ",[587,676,677],{},"apiKey"," for bearer secrets, ",[587,680,681],{},"endpoint"," for the base URL, ",[587,684,685],{},"serviceName",", ",[587,688,689],{},"timeout",[632,691,692,693,696,697,700,701,704],{},"Encode batched events into the destination's wire format inside ",[587,694,695],{},"encode(events, config)",", return ",[587,698,699],{},"{ url, headers, body }"," (or ",[587,702,703],{},"null"," to opt out of the batch)",[632,706,707,709],{},[587,708,598],{}," handles retries, timeouts, error isolation, batching, and identity headers. Don't reimplement them",[632,711,712,713,716,717,719],{},"Wire the drain via ",[587,714,715],{},"defineEvlog({ drain: createMyDrain() })"," or my framework's middleware ",[587,718,551],{}," option",[632,721,722,723,726],{},"For production, wrap the result in ",[587,724,725],{},"createDrainPipeline"," for batching + retries",[545,728,729,730,735,736],{},"Docs: ",[554,731,732],{"href":732,"rel":733},"https:\u002F\u002Fwww.evlog.dev\u002Fextend\u002Fcustom-drains",[734],"nofollow","\nPipeline: ",[554,737,738],{"href":738,"rel":739},"https:\u002F\u002Fwww.evlog.dev\u002Fextend\u002Fdrain-pipeline",[734],[741,742,744,746],"h2",{"id":743},"definehttpdrain-the-http-recipe",[587,745,598],{}," (the HTTP recipe)",[545,748,749,750,752,753,755,756,759],{},"The recipe every built-in adapter follows. Two pure functions: ",[587,751,662],{}," returns the config (or ",[587,754,703],{}," to skip), ",[587,757,758],{},"encode()"," returns the HTTP request payload.",[761,762,763],"code-collapse",{},[764,765,771],"pre",{"className":766,"code":767,"filename":768,"language":769,"meta":770,"style":770},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import {\n  defineHttpDrain,\n  resolveAdapterConfig,\n  type ConfigField,\n} from 'evlog\u002Ftoolkit'\n\ninterface MyServiceConfig {\n  apiKey: string\n  endpoint?: string\n  timeout?: number\n}\n\nconst FIELDS: ConfigField\u003CMyServiceConfig>[] = [\n  { key: 'apiKey', env: ['MYSERVICE_API_KEY'] },\n  { key: 'endpoint', env: ['MYSERVICE_ENDPOINT'] },\n  { key: 'timeout' },\n]\n\nexport function createMyServiceDrain(overrides?: Partial\u003CMyServiceConfig>) {\n  return defineHttpDrain\u003CMyServiceConfig>({\n    name: 'myservice',\n    resolve: async () => {\n      const cfg = await resolveAdapterConfig\u003CMyServiceConfig>('myservice', FIELDS, overrides)\n      if (!cfg.apiKey) {\n        console.error('[evlog\u002Fmyservice] Missing apiKey')\n        return null\n      }\n      return cfg as MyServiceConfig\n    },\n    encode: (events, cfg) => ({\n      url: `${cfg.endpoint ?? 'https:\u002F\u002Fapi.myservice.com'}\u002Fv1\u002Fingest`,\n      headers: {\n        'Content-Type': 'application\u002Fjson',\n        Authorization: `Bearer ${cfg.apiKey}`,\n      },\n      body: JSON.stringify(events),\n    }),\n  })\n}\n","lib\u002Fmy-drain.ts","typescript","",[587,772,773,786,796,804,815,833,840,853,866,877,888,894,899,930,972,1006,1024,1030,1035,1069,1089,1106,1125,1169,1194,1216,1225,1231,1245,1251,1277,1314,1324,1346,1374,1380,1404,1414,1422],{"__ignoreMap":770},[774,775,778,782],"span",{"class":776,"line":777},"line",1,[774,779,781],{"class":780},"s7zQu","import",[774,783,785],{"class":784},"sMK4o"," {\n",[774,787,789,793],{"class":776,"line":788},2,[774,790,792],{"class":791},"sTEyZ","  defineHttpDrain",[774,794,795],{"class":784},",\n",[774,797,799,802],{"class":776,"line":798},3,[774,800,801],{"class":791},"  resolveAdapterConfig",[774,803,795],{"class":784},[774,805,807,810,813],{"class":776,"line":806},4,[774,808,809],{"class":780},"  type",[774,811,812],{"class":791}," ConfigField",[774,814,795],{"class":784},[774,816,818,821,824,827,830],{"class":776,"line":817},5,[774,819,820],{"class":784},"}",[774,822,823],{"class":780}," from",[774,825,826],{"class":784}," '",[774,828,617],{"class":829},"sfazB",[774,831,832],{"class":784},"'\n",[774,834,836],{"class":776,"line":835},6,[774,837,839],{"emptyLinePlaceholder":838},true,"\n",[774,841,843,847,851],{"class":776,"line":842},7,[774,844,846],{"class":845},"spNyl","interface",[774,848,850],{"class":849},"sBMFI"," MyServiceConfig",[774,852,785],{"class":784},[774,854,856,860,863],{"class":776,"line":855},8,[774,857,859],{"class":858},"swJcz","  apiKey",[774,861,862],{"class":784},":",[774,864,865],{"class":849}," string\n",[774,867,869,872,875],{"class":776,"line":868},9,[774,870,871],{"class":858},"  endpoint",[774,873,874],{"class":784},"?:",[774,876,865],{"class":849},[774,878,880,883,885],{"class":776,"line":879},10,[774,881,882],{"class":858},"  timeout",[774,884,874],{"class":784},[774,886,887],{"class":849}," number\n",[774,889,891],{"class":776,"line":890},11,[774,892,893],{"class":784},"}\n",[774,895,897],{"class":776,"line":896},12,[774,898,839],{"emptyLinePlaceholder":838},[774,900,902,905,908,910,912,915,918,921,924,927],{"class":776,"line":901},13,[774,903,904],{"class":845},"const",[774,906,907],{"class":791}," FIELDS",[774,909,862],{"class":784},[774,911,812],{"class":849},[774,913,914],{"class":784},"\u003C",[774,916,917],{"class":849},"MyServiceConfig",[774,919,920],{"class":784},">",[774,922,923],{"class":791},"[] ",[774,925,926],{"class":784},"=",[774,928,929],{"class":791}," [\n",[774,931,933,936,939,941,943,945,948,951,954,956,959,961,964,966,969],{"class":776,"line":932},14,[774,934,935],{"class":784},"  {",[774,937,938],{"class":858}," key",[774,940,862],{"class":784},[774,942,826],{"class":784},[774,944,677],{"class":829},[774,946,947],{"class":784},"'",[774,949,950],{"class":784},",",[774,952,953],{"class":858}," env",[774,955,862],{"class":784},[774,957,958],{"class":791}," [",[774,960,947],{"class":784},[774,962,963],{"class":829},"MYSERVICE_API_KEY",[774,965,947],{"class":784},[774,967,968],{"class":791},"] ",[774,970,971],{"class":784},"},\n",[774,973,975,977,979,981,983,985,987,989,991,993,995,997,1000,1002,1004],{"class":776,"line":974},15,[774,976,935],{"class":784},[774,978,938],{"class":858},[774,980,862],{"class":784},[774,982,826],{"class":784},[774,984,681],{"class":829},[774,986,947],{"class":784},[774,988,950],{"class":784},[774,990,953],{"class":858},[774,992,862],{"class":784},[774,994,958],{"class":791},[774,996,947],{"class":784},[774,998,999],{"class":829},"MYSERVICE_ENDPOINT",[774,1001,947],{"class":784},[774,1003,968],{"class":791},[774,1005,971],{"class":784},[774,1007,1009,1011,1013,1015,1017,1019,1021],{"class":776,"line":1008},16,[774,1010,935],{"class":784},[774,1012,938],{"class":858},[774,1014,862],{"class":784},[774,1016,826],{"class":784},[774,1018,689],{"class":829},[774,1020,947],{"class":784},[774,1022,1023],{"class":784}," },\n",[774,1025,1027],{"class":776,"line":1026},17,[774,1028,1029],{"class":791},"]\n",[774,1031,1033],{"class":776,"line":1032},18,[774,1034,839],{"emptyLinePlaceholder":838},[774,1036,1038,1041,1044,1048,1051,1055,1057,1060,1062,1064,1067],{"class":776,"line":1037},19,[774,1039,1040],{"class":780},"export",[774,1042,1043],{"class":845}," function",[774,1045,1047],{"class":1046},"s2Zo4"," createMyServiceDrain",[774,1049,1050],{"class":784},"(",[774,1052,1054],{"class":1053},"sHdIc","overrides",[774,1056,874],{"class":784},[774,1058,1059],{"class":849}," Partial",[774,1061,914],{"class":784},[774,1063,917],{"class":849},[774,1065,1066],{"class":784},">)",[774,1068,785],{"class":784},[774,1070,1072,1075,1078,1080,1082,1084,1086],{"class":776,"line":1071},20,[774,1073,1074],{"class":780},"  return",[774,1076,1077],{"class":1046}," defineHttpDrain",[774,1079,914],{"class":784},[774,1081,917],{"class":849},[774,1083,920],{"class":784},[774,1085,1050],{"class":858},[774,1087,1088],{"class":784},"{\n",[774,1090,1092,1095,1097,1099,1102,1104],{"class":776,"line":1091},21,[774,1093,1094],{"class":858},"    name",[774,1096,862],{"class":784},[774,1098,826],{"class":784},[774,1100,1101],{"class":829},"myservice",[774,1103,947],{"class":784},[774,1105,795],{"class":784},[774,1107,1109,1112,1114,1117,1120,1123],{"class":776,"line":1108},22,[774,1110,1111],{"class":1046},"    resolve",[774,1113,862],{"class":784},[774,1115,1116],{"class":845}," async",[774,1118,1119],{"class":784}," ()",[774,1121,1122],{"class":845}," =>",[774,1124,785],{"class":784},[774,1126,1128,1131,1134,1137,1140,1143,1145,1147,1149,1151,1153,1155,1157,1159,1161,1163,1166],{"class":776,"line":1127},23,[774,1129,1130],{"class":845},"      const",[774,1132,1133],{"class":791}," cfg",[774,1135,1136],{"class":784}," =",[774,1138,1139],{"class":780}," await",[774,1141,1142],{"class":1046}," resolveAdapterConfig",[774,1144,914],{"class":784},[774,1146,917],{"class":849},[774,1148,920],{"class":784},[774,1150,1050],{"class":858},[774,1152,947],{"class":784},[774,1154,1101],{"class":829},[774,1156,947],{"class":784},[774,1158,950],{"class":784},[774,1160,907],{"class":791},[774,1162,950],{"class":784},[774,1164,1165],{"class":791}," overrides",[774,1167,1168],{"class":858},")\n",[774,1170,1172,1175,1178,1181,1184,1187,1189,1192],{"class":776,"line":1171},24,[774,1173,1174],{"class":780},"      if",[774,1176,1177],{"class":858}," (",[774,1179,1180],{"class":784},"!",[774,1182,1183],{"class":791},"cfg",[774,1185,1186],{"class":784},".",[774,1188,677],{"class":791},[774,1190,1191],{"class":858},") ",[774,1193,1088],{"class":784},[774,1195,1197,1200,1202,1205,1207,1209,1212,1214],{"class":776,"line":1196},25,[774,1198,1199],{"class":791},"        console",[774,1201,1186],{"class":784},[774,1203,1204],{"class":1046},"error",[774,1206,1050],{"class":858},[774,1208,947],{"class":784},[774,1210,1211],{"class":829},"[evlog\u002Fmyservice] Missing apiKey",[774,1213,947],{"class":784},[774,1215,1168],{"class":858},[774,1217,1219,1222],{"class":776,"line":1218},26,[774,1220,1221],{"class":780},"        return",[774,1223,1224],{"class":784}," null\n",[774,1226,1228],{"class":776,"line":1227},27,[774,1229,1230],{"class":784},"      }\n",[774,1232,1234,1237,1239,1242],{"class":776,"line":1233},28,[774,1235,1236],{"class":780},"      return",[774,1238,1133],{"class":791},[774,1240,1241],{"class":780}," as",[774,1243,1244],{"class":849}," MyServiceConfig\n",[774,1246,1248],{"class":776,"line":1247},29,[774,1249,1250],{"class":784},"    },\n",[774,1252,1254,1257,1259,1261,1264,1266,1268,1271,1273,1275],{"class":776,"line":1253},30,[774,1255,1256],{"class":1046},"    encode",[774,1258,862],{"class":784},[774,1260,1177],{"class":784},[774,1262,1263],{"class":1053},"events",[774,1265,950],{"class":784},[774,1267,1133],{"class":1053},[774,1269,1270],{"class":784},")",[774,1272,1122],{"class":845},[774,1274,1177],{"class":858},[774,1276,1088],{"class":784},[774,1278,1280,1283,1285,1288,1290,1292,1295,1298,1300,1303,1306,1309,1312],{"class":776,"line":1279},31,[774,1281,1282],{"class":858},"      url",[774,1284,862],{"class":784},[774,1286,1287],{"class":784}," `${",[774,1289,1183],{"class":791},[774,1291,1186],{"class":784},[774,1293,1294],{"class":791},"endpoint ",[774,1296,1297],{"class":784},"??",[774,1299,826],{"class":784},[774,1301,1302],{"class":829},"https:\u002F\u002Fapi.myservice.com",[774,1304,1305],{"class":784},"'}",[774,1307,1308],{"class":829},"\u002Fv1\u002Fingest",[774,1310,1311],{"class":784},"`",[774,1313,795],{"class":784},[774,1315,1317,1320,1322],{"class":776,"line":1316},32,[774,1318,1319],{"class":858},"      headers",[774,1321,862],{"class":784},[774,1323,785],{"class":784},[774,1325,1327,1330,1333,1335,1337,1339,1342,1344],{"class":776,"line":1326},33,[774,1328,1329],{"class":784},"        '",[774,1331,1332],{"class":858},"Content-Type",[774,1334,947],{"class":784},[774,1336,862],{"class":784},[774,1338,826],{"class":784},[774,1340,1341],{"class":829},"application\u002Fjson",[774,1343,947],{"class":784},[774,1345,795],{"class":784},[774,1347,1349,1352,1354,1357,1360,1363,1365,1367,1369,1372],{"class":776,"line":1348},34,[774,1350,1351],{"class":858},"        Authorization",[774,1353,862],{"class":784},[774,1355,1356],{"class":784}," `",[774,1358,1359],{"class":829},"Bearer ",[774,1361,1362],{"class":784},"${",[774,1364,1183],{"class":791},[774,1366,1186],{"class":784},[774,1368,677],{"class":791},[774,1370,1371],{"class":784},"}`",[774,1373,795],{"class":784},[774,1375,1377],{"class":776,"line":1376},35,[774,1378,1379],{"class":784},"      },\n",[774,1381,1383,1386,1388,1391,1393,1396,1398,1400,1402],{"class":776,"line":1382},36,[774,1384,1385],{"class":858},"      body",[774,1387,862],{"class":784},[774,1389,1390],{"class":791}," JSON",[774,1392,1186],{"class":784},[774,1394,1395],{"class":1046},"stringify",[774,1397,1050],{"class":858},[774,1399,1263],{"class":791},[774,1401,1270],{"class":858},[774,1403,795],{"class":784},[774,1405,1407,1410,1412],{"class":776,"line":1406},37,[774,1408,1409],{"class":784},"    }",[774,1411,1270],{"class":858},[774,1413,795],{"class":784},[774,1415,1417,1420],{"class":776,"line":1416},38,[774,1418,1419],{"class":784},"  }",[774,1421,1168],{"class":858},[774,1423,1425],{"class":776,"line":1424},39,[774,1426,893],{"class":784},[545,1428,1429,1430,1432,1433,1436,1437,1440,1441,1445,1446,1449],{},"That's it. ",[587,1431,598],{}," handles retries (default 2), timeouts (default 5000ms), error isolation, and the identity headers (",[587,1434,1435],{},"User-Agent: evlog\u002F\u003Cversion>"," + ",[587,1438,1439],{},"X-Evlog-Source: \u003Cname>","). Your app pipeline keeps running even if your destination is down, and when you wrap the drain in ",[554,1442,1443],{"href":496},[587,1444,725],{},", the pipeline takes over retries through the drain's ",[587,1447,1448],{},"raw"," variant.",[1451,1452,1454],"h3",{"id":1453},"a-5-minute-example-internal-loki-drain","A 5-minute example: internal Loki drain",[545,1456,1457],{},"A complete working drain in 25 lines, with no external config helper:",[764,1459,1464],{"className":1460,"code":1461,"filename":1462,"language":1463,"meta":770,"style":770},"language-ts shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { defineHttpDrain } from 'evlog\u002Ftoolkit'\n\nexport function createLokiDrain(overrides?: { url?: string, token?: string }) {\n  return defineHttpDrain\u003C{ url: string, token: string }>({\n    name: 'loki',\n    resolve: () => ({\n      url: overrides?.url ?? process.env.LOKI_URL!,\n      token: overrides?.token ?? process.env.LOKI_TOKEN!,\n    }),\n    encode: (events, config) => ({\n      url: `${config.url}\u002Floki\u002Fapi\u002Fv1\u002Fpush`,\n      headers: {\n        'Content-Type': 'application\u002Fjson',\n        Authorization: `Bearer ${config.token}`,\n      },\n      body: JSON.stringify({\n        streams: events.map(e => ({\n          stream: { service: e.service, level: e.level },\n          values: [[String(Date.parse(e.timestamp) * 1e6), JSON.stringify(e)]],\n        })),\n      }),\n    }),\n  })\n}\n","lib\u002Floki-drain.ts","ts",[587,1465,1466,1486,1490,1529,1559,1574,1588,1621,1650,1658,1681,1705,1713,1731,1753,1757,1773,1798,1836,1896,1906,1915,1923,1929],{"__ignoreMap":770},[774,1467,1468,1470,1473,1475,1478,1480,1482,1484],{"class":776,"line":777},[774,1469,781],{"class":780},[774,1471,1472],{"class":784}," {",[774,1474,1077],{"class":791},[774,1476,1477],{"class":784}," }",[774,1479,823],{"class":780},[774,1481,826],{"class":784},[774,1483,617],{"class":829},[774,1485,832],{"class":784},[774,1487,1488],{"class":776,"line":788},[774,1489,839],{"emptyLinePlaceholder":838},[774,1491,1492,1494,1496,1499,1501,1503,1505,1507,1510,1512,1515,1517,1520,1522,1524,1527],{"class":776,"line":798},[774,1493,1040],{"class":780},[774,1495,1043],{"class":845},[774,1497,1498],{"class":1046}," createLokiDrain",[774,1500,1050],{"class":784},[774,1502,1054],{"class":1053},[774,1504,874],{"class":784},[774,1506,1472],{"class":784},[774,1508,1509],{"class":858}," url",[774,1511,874],{"class":784},[774,1513,1514],{"class":849}," string",[774,1516,950],{"class":784},[774,1518,1519],{"class":858}," token",[774,1521,874],{"class":784},[774,1523,1514],{"class":849},[774,1525,1526],{"class":784}," })",[774,1528,785],{"class":784},[774,1530,1531,1533,1535,1538,1540,1542,1544,1546,1548,1550,1552,1555,1557],{"class":776,"line":806},[774,1532,1074],{"class":780},[774,1534,1077],{"class":1046},[774,1536,1537],{"class":784},"\u003C{",[774,1539,1509],{"class":858},[774,1541,862],{"class":784},[774,1543,1514],{"class":849},[774,1545,950],{"class":784},[774,1547,1519],{"class":858},[774,1549,862],{"class":784},[774,1551,1514],{"class":849},[774,1553,1554],{"class":784}," }>",[774,1556,1050],{"class":858},[774,1558,1088],{"class":784},[774,1560,1561,1563,1565,1567,1570,1572],{"class":776,"line":817},[774,1562,1094],{"class":858},[774,1564,862],{"class":784},[774,1566,826],{"class":784},[774,1568,1569],{"class":829},"loki",[774,1571,947],{"class":784},[774,1573,795],{"class":784},[774,1575,1576,1578,1580,1582,1584,1586],{"class":776,"line":835},[774,1577,1111],{"class":1046},[774,1579,862],{"class":784},[774,1581,1119],{"class":784},[774,1583,1122],{"class":845},[774,1585,1177],{"class":858},[774,1587,1088],{"class":784},[774,1589,1590,1592,1594,1596,1599,1602,1605,1608,1610,1613,1615,1618],{"class":776,"line":842},[774,1591,1282],{"class":858},[774,1593,862],{"class":784},[774,1595,1165],{"class":791},[774,1597,1598],{"class":784},"?.",[774,1600,1601],{"class":791},"url",[774,1603,1604],{"class":784}," ??",[774,1606,1607],{"class":791}," process",[774,1609,1186],{"class":784},[774,1611,1612],{"class":791},"env",[774,1614,1186],{"class":784},[774,1616,1617],{"class":791},"LOKI_URL",[774,1619,1620],{"class":784},"!,\n",[774,1622,1623,1626,1628,1630,1632,1635,1637,1639,1641,1643,1645,1648],{"class":776,"line":855},[774,1624,1625],{"class":858},"      token",[774,1627,862],{"class":784},[774,1629,1165],{"class":791},[774,1631,1598],{"class":784},[774,1633,1634],{"class":791},"token",[774,1636,1604],{"class":784},[774,1638,1607],{"class":791},[774,1640,1186],{"class":784},[774,1642,1612],{"class":791},[774,1644,1186],{"class":784},[774,1646,1647],{"class":791},"LOKI_TOKEN",[774,1649,1620],{"class":784},[774,1651,1652,1654,1656],{"class":776,"line":868},[774,1653,1409],{"class":784},[774,1655,1270],{"class":858},[774,1657,795],{"class":784},[774,1659,1660,1662,1664,1666,1668,1670,1673,1675,1677,1679],{"class":776,"line":879},[774,1661,1256],{"class":1046},[774,1663,862],{"class":784},[774,1665,1177],{"class":784},[774,1667,1263],{"class":1053},[774,1669,950],{"class":784},[774,1671,1672],{"class":1053}," config",[774,1674,1270],{"class":784},[774,1676,1122],{"class":845},[774,1678,1177],{"class":858},[774,1680,1088],{"class":784},[774,1682,1683,1685,1687,1689,1692,1694,1696,1698,1701,1703],{"class":776,"line":890},[774,1684,1282],{"class":858},[774,1686,862],{"class":784},[774,1688,1287],{"class":784},[774,1690,1691],{"class":791},"config",[774,1693,1186],{"class":784},[774,1695,1601],{"class":791},[774,1697,820],{"class":784},[774,1699,1700],{"class":829},"\u002Floki\u002Fapi\u002Fv1\u002Fpush",[774,1702,1311],{"class":784},[774,1704,795],{"class":784},[774,1706,1707,1709,1711],{"class":776,"line":896},[774,1708,1319],{"class":858},[774,1710,862],{"class":784},[774,1712,785],{"class":784},[774,1714,1715,1717,1719,1721,1723,1725,1727,1729],{"class":776,"line":901},[774,1716,1329],{"class":784},[774,1718,1332],{"class":858},[774,1720,947],{"class":784},[774,1722,862],{"class":784},[774,1724,826],{"class":784},[774,1726,1341],{"class":829},[774,1728,947],{"class":784},[774,1730,795],{"class":784},[774,1732,1733,1735,1737,1739,1741,1743,1745,1747,1749,1751],{"class":776,"line":932},[774,1734,1351],{"class":858},[774,1736,862],{"class":784},[774,1738,1356],{"class":784},[774,1740,1359],{"class":829},[774,1742,1362],{"class":784},[774,1744,1691],{"class":791},[774,1746,1186],{"class":784},[774,1748,1634],{"class":791},[774,1750,1371],{"class":784},[774,1752,795],{"class":784},[774,1754,1755],{"class":776,"line":974},[774,1756,1379],{"class":784},[774,1758,1759,1761,1763,1765,1767,1769,1771],{"class":776,"line":1008},[774,1760,1385],{"class":858},[774,1762,862],{"class":784},[774,1764,1390],{"class":791},[774,1766,1186],{"class":784},[774,1768,1395],{"class":1046},[774,1770,1050],{"class":858},[774,1772,1088],{"class":784},[774,1774,1775,1778,1780,1783,1785,1787,1789,1792,1794,1796],{"class":776,"line":1026},[774,1776,1777],{"class":858},"        streams",[774,1779,862],{"class":784},[774,1781,1782],{"class":791}," events",[774,1784,1186],{"class":784},[774,1786,94],{"class":1046},[774,1788,1050],{"class":858},[774,1790,1791],{"class":1053},"e",[774,1793,1122],{"class":845},[774,1795,1177],{"class":858},[774,1797,1088],{"class":784},[774,1799,1800,1803,1805,1807,1810,1812,1815,1817,1820,1822,1825,1827,1829,1831,1834],{"class":776,"line":1032},[774,1801,1802],{"class":858},"          stream",[774,1804,862],{"class":784},[774,1806,1472],{"class":784},[774,1808,1809],{"class":858}," service",[774,1811,862],{"class":784},[774,1813,1814],{"class":791}," e",[774,1816,1186],{"class":784},[774,1818,1819],{"class":791},"service",[774,1821,950],{"class":784},[774,1823,1824],{"class":858}," 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1e6",[774,1878,1270],{"class":858},[774,1880,950],{"class":784},[774,1882,1390],{"class":791},[774,1884,1186],{"class":784},[774,1886,1395],{"class":1046},[774,1888,1050],{"class":858},[774,1890,1791],{"class":791},[774,1892,1893],{"class":858},")]]",[774,1895,795],{"class":784},[774,1897,1898,1901,1904],{"class":776,"line":1071},[774,1899,1900],{"class":784},"        }",[774,1902,1903],{"class":858},"))",[774,1905,795],{"class":784},[774,1907,1908,1911,1913],{"class":776,"line":1091},[774,1909,1910],{"class":784},"      }",[774,1912,1270],{"class":858},[774,1914,795],{"class":784},[774,1916,1917,1919,1921],{"class":776,"line":1108},[774,1918,1409],{"class":784},[774,1920,1270],{"class":858},[774,1922,795],{"class":784},[774,1924,1925,1927],{"class":776,"line":1127},[774,1926,1419],{"class":784},[774,1928,1168],{"class":858},[774,1930,1931],{"class":776,"line":1171},[774,1932,893],{"class":784},[741,1934,1936],{"id":1935},"know-which-config-wins","Know which config wins",[545,1938,1939,1941],{},[587,1940,666],{}," walks the standard chain so users get the same configuration UX as built-in adapters:",[1943,1944,1945,1951,1957,1963],"ol",{},[632,1946,1947,1948,1950],{},"Explicit ",[587,1949,1054],{}," passed to your factory",[632,1952,1953,1956],{},[587,1954,1955],{},"runtimeConfig.evlog.\u003Cnamespace>"," (Nuxt\u002FNitro)",[632,1958,1959,1962],{},[587,1960,1961],{},"runtimeConfig.\u003Cnamespace>"," (legacy Nuxt\u002FNitro)",[632,1964,1965,1968,1969,1972,1973,1976,1977,1979,1980,1270],{},[587,1966,1967],{},"\u003CNS>_\u003CFIELD>"," env vars (list ",[587,1970,1971],{},"NUXT_\u003CNS>_\u003CFIELD>"," in ",[587,1974,1975],{},"ConfigField.env"," for silent Nuxt compat; show only ",[587,1978,1967],{}," in error messages via ",[587,1981,1982],{},"formatPublicEnvKeys",[545,1984,1985,1986,686,1988,686,1990,686,1992,1994,1995,1997,1998,2000,2001,2004,2005,2008,2009,2012],{},"Field names should follow the project conventions: ",[587,1987,677],{},[587,1989,681],{},[587,1991,685],{},[587,1993,689],{},". If you're renaming an existing field (e.g. ",[587,1996,1634],{}," → ",[587,1999,677],{},"), keep both as ",[587,2002,2003],{},"ConfigField"," entries for one major version. See ",[587,2006,2007],{},"axiom.ts"," and ",[587,2010,2011],{},"better-stack.ts"," for the deprecation pattern.",[741,2014,2016],{"id":2015},"wire-the-drain-into-your-framework","Wire the drain into your framework",[545,2018,2019,2020,2023],{},"Once ",[587,2021,2022],{},"createMyServiceDrain()"," returns the drain, wire it like any other:",[2025,2026,2027,2140,2266,2324,2361,2392],"code-group",{},[764,2028,2031],{"className":766,"code":2029,"filename":2030,"language":769,"meta":770,"style":770},"\u002F\u002F server\u002Fplugins\u002Fevlog-drain.ts\nimport { createMyServiceDrain } from '~\u002Fserver\u002Futils\u002Fmy-drain'\n\nconst drain = createMyServiceDrain()\n\nexport default defineNitroPlugin((nitroApp) => {\n  nitroApp.hooks.hook('evlog:drain', drain)\n})\n","Nuxt \u002F Nitro",[587,2032,2033,2039,2058,2062,2076,2080,2103,2134],{"__ignoreMap":770},[774,2034,2035],{"class":776,"line":777},[774,2036,2038],{"class":2037},"sHwdD","\u002F\u002F server\u002Fplugins\u002Fevlog-drain.ts\n",[774,2040,2041,2043,2045,2047,2049,2051,2053,2056],{"class":776,"line":788},[774,2042,781],{"class":780},[774,2044,1472],{"class":784},[774,2046,1047],{"class":791},[774,2048,1477],{"class":784},[774,2050,823],{"class":780},[774,2052,826],{"class":784},[774,2054,2055],{"class":829},"~\u002Fserver\u002Futils\u002Fmy-drain",[774,2057,832],{"class":784},[774,2059,2060],{"class":776,"line":798},[774,2061,839],{"emptyLinePlaceholder":838},[774,2063,2064,2066,2069,2071,2073],{"class":776,"line":806},[774,2065,904],{"class":845},[774,2067,2068],{"class":791}," drain ",[774,2070,926],{"class":784},[774,2072,1047],{"class":1046},[774,2074,2075],{"class":791},"()\n",[774,2077,2078],{"class":776,"line":817},[774,2079,839],{"emptyLinePlaceholder":838},[774,2081,2082,2084,2087,2090,2092,2094,2097,2099,2101],{"class":776,"line":835},[774,2083,1040],{"class":780},[774,2085,2086],{"class":780}," default",[774,2088,2089],{"class":1046}," defineNitroPlugin",[774,2091,1050],{"class":791},[774,2093,1050],{"class":784},[774,2095,2096],{"class":1053},"nitroApp",[774,2098,1270],{"class":784},[774,2100,1122],{"class":845},[774,2102,785],{"class":784},[774,2104,2105,2108,2110,2113,2115,2118,2120,2122,2125,2127,2129,2132],{"class":776,"line":842},[774,2106,2107],{"class":791},"  nitroApp",[774,2109,1186],{"class":784},[774,2111,2112],{"class":791},"hooks",[774,2114,1186],{"class":784},[774,2116,2117],{"class":1046},"hook",[774,2119,1050],{"class":858},[774,2121,947],{"class":784},[774,2123,2124],{"class":829},"evlog:drain",[774,2126,947],{"class":784},[774,2128,950],{"class":784},[774,2130,2131],{"class":791}," drain",[774,2133,1168],{"class":858},[774,2135,2136,2138],{"class":776,"line":855},[774,2137,820],{"class":784},[774,2139,1168],{"class":791},[764,2141,2143],{"className":766,"code":2142,"filename":235,"language":769,"meta":770,"style":770},"\u002F\u002F lib\u002Fevlog.ts\nimport { createEvlog } from 'evlog\u002Fnext'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\nexport const { withEvlog, useLogger, log, createError } = createEvlog({\n  service: 'my-app',\n  drain: createMyServiceDrain(),\n})\n",[587,2144,2145,2150,2170,2189,2193,2230,2246,2260],{"__ignoreMap":770},[774,2146,2147],{"class":776,"line":777},[774,2148,2149],{"class":2037},"\u002F\u002F lib\u002Fevlog.ts\n",[774,2151,2152,2154,2156,2159,2161,2163,2165,2168],{"class":776,"line":788},[774,2153,781],{"class":780},[774,2155,1472],{"class":784},[774,2157,2158],{"class":791}," createEvlog",[774,2160,1477],{"class":784},[774,2162,823],{"class":780},[774,2164,826],{"class":784},[774,2166,2167],{"class":829},"evlog\u002Fnext",[774,2169,832],{"class":784},[774,2171,2172,2174,2176,2178,2180,2182,2184,2187],{"class":776,"line":798},[774,2173,781],{"class":780},[774,2175,1472],{"class":784},[774,2177,1047],{"class":791},[774,2179,1477],{"class":784},[774,2181,823],{"class":780},[774,2183,826],{"class":784},[774,2185,2186],{"class":829},".\u002Fmy-drain",[774,2188,832],{"class":784},[774,2190,2191],{"class":776,"line":806},[774,2192,839],{"emptyLinePlaceholder":838},[774,2194,2195,2197,2200,2202,2205,2207,2210,2212,2215,2217,2220,2222,2224,2226,2228],{"class":776,"line":817},[774,2196,1040],{"class":780},[774,2198,2199],{"class":845}," const",[774,2201,1472],{"class":784},[774,2203,2204],{"class":791}," withEvlog",[774,2206,950],{"class":784},[774,2208,2209],{"class":791}," useLogger",[774,2211,950],{"class":784},[774,2213,2214],{"class":791}," log",[774,2216,950],{"class":784},[774,2218,2219],{"class":791}," createError ",[774,2221,820],{"class":784},[774,2223,1136],{"class":784},[774,2225,2158],{"class":1046},[774,2227,1050],{"class":791},[774,2229,1088],{"class":784},[774,2231,2232,2235,2237,2239,2242,2244],{"class":776,"line":835},[774,2233,2234],{"class":858},"  service",[774,2236,862],{"class":784},[774,2238,826],{"class":784},[774,2240,2241],{"class":829},"my-app",[774,2243,947],{"class":784},[774,2245,795],{"class":784},[774,2247,2248,2251,2253,2255,2258],{"class":776,"line":842},[774,2249,2250],{"class":858},"  drain",[774,2252,862],{"class":784},[774,2254,1047],{"class":1046},[774,2256,2257],{"class":791},"()",[774,2259,795],{"class":784},[774,2261,2262,2264],{"class":776,"line":855},[774,2263,820],{"class":784},[774,2265,1168],{"class":791},[764,2267,2270],{"className":766,"code":2268,"filename":2269,"language":769,"meta":770,"style":770},"import { createMyServiceDrain } from '.\u002Fmy-drain'\napp.use(evlog({ drain: createMyServiceDrain() }))\n","Hono \u002F Express \u002F Elysia",[587,2271,2272,2290],{"__ignoreMap":770},[774,2273,2274,2276,2278,2280,2282,2284,2286,2288],{"class":776,"line":777},[774,2275,781],{"class":780},[774,2277,1472],{"class":784},[774,2279,1047],{"class":791},[774,2281,1477],{"class":784},[774,2283,823],{"class":780},[774,2285,826],{"class":784},[774,2287,2186],{"class":829},[774,2289,832],{"class":784},[774,2291,2292,2295,2297,2300,2302,2305,2307,2310,2312,2314,2316,2319,2321],{"class":776,"line":788},[774,2293,2294],{"class":791},"app",[774,2296,1186],{"class":784},[774,2298,2299],{"class":1046},"use",[774,2301,1050],{"class":791},[774,2303,2304],{"class":1046},"evlog",[774,2306,1050],{"class":791},[774,2308,2309],{"class":784},"{",[774,2311,2131],{"class":858},[774,2313,862],{"class":784},[774,2315,1047],{"class":1046},[774,2317,2318],{"class":791},"() ",[774,2320,820],{"class":784},[774,2322,2323],{"class":791},"))\n",[764,2325,2327],{"className":766,"code":2326,"filename":270,"language":769,"meta":770,"style":770},"await app.register(evlog, { drain: createMyServiceDrain() })\n",[587,2328,2329],{"__ignoreMap":770},[774,2330,2331,2334,2337,2339,2342,2345,2347,2349,2351,2353,2355,2357,2359],{"class":776,"line":777},[774,2332,2333],{"class":780},"await",[774,2335,2336],{"class":791}," app",[774,2338,1186],{"class":784},[774,2340,2341],{"class":1046},"register",[774,2343,2344],{"class":791},"(evlog",[774,2346,950],{"class":784},[774,2348,1472],{"class":784},[774,2350,2131],{"class":858},[774,2352,862],{"class":784},[774,2354,1047],{"class":1046},[774,2356,2318],{"class":791},[774,2358,820],{"class":784},[774,2360,1168],{"class":791},[764,2362,2364],{"className":766,"code":2363,"filename":255,"language":769,"meta":770,"style":770},"EvlogModule.forRoot({ drain: createMyServiceDrain() })\n",[587,2365,2366],{"__ignoreMap":770},[774,2367,2368,2371,2373,2376,2378,2380,2382,2384,2386,2388,2390],{"class":776,"line":777},[774,2369,2370],{"class":791},"EvlogModule",[774,2372,1186],{"class":784},[774,2374,2375],{"class":1046},"forRoot",[774,2377,1050],{"class":791},[774,2379,2309],{"class":784},[774,2381,2131],{"class":858},[774,2383,862],{"class":784},[774,2385,1047],{"class":1046},[774,2387,2318],{"class":791},[774,2389,820],{"class":784},[774,2391,1168],{"class":791},[764,2393,2395],{"className":766,"code":2394,"filename":290,"language":769,"meta":770,"style":770},"import { initLogger } from 'evlog'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\ninitLogger({ drain: createMyServiceDrain() })\n",[587,2396,2397,2416,2434,2438],{"__ignoreMap":770},[774,2398,2399,2401,2403,2406,2408,2410,2412,2414],{"class":776,"line":777},[774,2400,781],{"class":780},[774,2402,1472],{"class":784},[774,2404,2405],{"class":791}," initLogger",[774,2407,1477],{"class":784},[774,2409,823],{"class":780},[774,2411,826],{"class":784},[774,2413,2304],{"class":829},[774,2415,832],{"class":784},[774,2417,2418,2420,2422,2424,2426,2428,2430,2432],{"class":776,"line":788},[774,2419,781],{"class":780},[774,2421,1472],{"class":784},[774,2423,1047],{"class":791},[774,2425,1477],{"class":784},[774,2427,823],{"class":780},[774,2429,826],{"class":784},[774,2431,2186],{"class":829},[774,2433,832],{"class":784},[774,2435,2436],{"class":776,"line":798},[774,2437,839],{"emptyLinePlaceholder":838},[774,2439,2440,2443,2445,2447,2449,2451,2453,2455,2457],{"class":776,"line":806},[774,2441,2442],{"class":1046},"initLogger",[774,2444,1050],{"class":791},[774,2446,2309],{"class":784},[774,2448,2131],{"class":858},[774,2450,862],{"class":784},[774,2452,1047],{"class":1046},[774,2454,2318],{"class":791},[774,2456,820],{"class":784},[774,2458,1168],{"class":791},[545,2460,2461,2462,2466],{},"For production, wrap it once in ",[554,2463,2464],{"href":496},[587,2465,725],{}," so events are batched and retried.",[741,2468,2470],{"id":2469},"filter-or-transform-before-sending","Filter or transform before sending",[545,2472,2473,2475,2476,2479,2480,2482],{},[587,2474,758],{}," receives the full batch of ",[587,2477,2478],{},"WideEvent[]"," plus the resolved config. Filter or transform inline, and returning ",[587,2481,703],{}," is a clean opt-out for that batch:",[764,2484,2486],{"className":766,"code":2485,"language":769,"meta":770,"style":770},"encode: (events, cfg) => {\n  const filtered = events.filter(e => e.level === 'error' && e.path !== '\u002Fhealth')\n  if (filtered.length === 0) return null\n\n  const payload = filtered.map(e => ({\n    ts: new Date(e.timestamp).getTime(),\n    severity: e.level.toUpperCase(),\n    attributes: { method: e.method, path: e.path, status: e.status, durationMs: e.durationMs },\n  }))\n\n  return {\n    url: `${cfg.endpoint}\u002Fv1\u002Fpush`,\n    headers: { 'Content-Type': 'application\u002Fjson' },\n    body: JSON.stringify(payload),\n  }\n}\n",[587,2487,2488,2509,2569,2596,2600,2625,2657,2679,2743,2749,2753,2759,2783,2808,2830,2835],{"__ignoreMap":770},[774,2489,2490,2493,2495,2497,2499,2501,2503,2505,2507],{"class":776,"line":777},[774,2491,2492],{"class":849},"encode",[774,2494,862],{"class":784},[774,2496,1177],{"class":784},[774,2498,1263],{"class":1053},[774,2500,950],{"class":784},[774,2502,1133],{"class":1053},[774,2504,1270],{"class":784},[774,2506,1122],{"class":845},[774,2508,785],{"class":784},[774,2510,2511,2514,2517,2519,2521,2523,2526,2528,2530,2532,2534,2536,2538,2541,2543,2545,2547,2550,2552,2554,2557,2560,2562,2565,2567],{"class":776,"line":788},[774,2512,2513],{"class":845},"  const",[774,2515,2516],{"class":791}," filtered",[774,2518,1136],{"class":784},[774,2520,1782],{"class":791},[774,2522,1186],{"class":784},[774,2524,2525],{"class":1046},"filter",[774,2527,1050],{"class":858},[774,2529,1791],{"class":1053},[774,2531,1122],{"class":845},[774,2533,1814],{"class":791},[774,2535,1186],{"class":784},[774,2537,1833],{"class":791},[774,2539,2540],{"class":784}," ===",[774,2542,826],{"class":784},[774,2544,1204],{"class":829},[774,2546,947],{"class":784},[774,2548,2549],{"class":784}," &&",[774,2551,1814],{"class":791},[774,2553,1186],{"class":784},[774,2555,2556],{"class":791},"path",[774,2558,2559],{"class":784}," !==",[774,2561,826],{"class":784},[774,2563,2564],{"class":829},"\u002Fhealth",[774,2566,947],{"class":784},[774,2568,1168],{"class":858},[774,2570,2571,2574,2576,2579,2581,2584,2586,2589,2591,2594],{"class":776,"line":798},[774,2572,2573],{"class":780},"  if",[774,2575,1177],{"class":858},[774,2577,2578],{"class":791},"filtered",[774,2580,1186],{"class":784},[774,2582,2583],{"class":791},"length",[774,2585,2540],{"class":784},[774,2587,2588],{"class":1875}," 0",[774,2590,1191],{"class":858},[774,2592,2593],{"class":780},"return",[774,2595,1224],{"class":784},[774,2597,2598],{"class":776,"line":806},[774,2599,839],{"emptyLinePlaceholder":838},[774,2601,2602,2604,2607,2609,2611,2613,2615,2617,2619,2621,2623],{"class":776,"line":817},[774,2603,2513],{"class":845},[774,2605,2606],{"class":791}," payload",[774,2608,1136],{"class":784},[774,2610,2516],{"class":791},[774,2612,1186],{"class":784},[774,2614,94],{"class":1046},[774,2616,1050],{"class":858},[774,2618,1791],{"class":1053},[774,2620,1122],{"class":845},[774,2622,1177],{"class":858},[774,2624,1088],{"class":784},[774,2626,2627,2630,2632,2635,2638,2640,2642,2644,2646,2648,2650,2653,2655],{"class":776,"line":835},[774,2628,2629],{"class":858},"    ts",[774,2631,862],{"class":784},[774,2633,2634],{"class":784}," new",[774,2636,2637],{"class":1046}," Date",[774,2639,1050],{"class":858},[774,2641,1791],{"class":791},[774,2643,1186],{"class":784},[774,2645,1867],{"class":791},[774,2647,1270],{"class":858},[774,2649,1186],{"class":784},[774,2651,2652],{"class":1046},"getTime",[774,2654,2257],{"class":858},[774,2656,795],{"class":784},[774,2658,2659,2662,2664,2666,2668,2670,2672,2675,2677],{"class":776,"line":842},[774,2660,2661],{"class":858},"    severity",[774,2663,862],{"class":784},[774,2665,1814],{"class":791},[774,2667,1186],{"class":784},[774,2669,1833],{"class":791},[774,2671,1186],{"class":784},[774,2673,2674],{"class":1046},"toUpperCase",[774,2676,2257],{"class":858},[774,2678,795],{"class":784},[774,2680,2681,2684,2686,2688,2691,2693,2695,2697,2700,2702,2705,2707,2709,2711,2713,2715,2718,2720,2722,2724,2727,2729,2732,2734,2736,2738,2741],{"class":776,"line":855},[774,2682,2683],{"class":858},"    attributes",[774,2685,862],{"class":784},[774,2687,1472],{"class":784},[774,2689,2690],{"class":858}," method",[774,2692,862],{"class":784},[774,2694,1814],{"class":791},[774,2696,1186],{"class":784},[774,2698,2699],{"class":791},"method",[774,2701,950],{"class":784},[774,2703,2704],{"class":858}," path",[774,2706,862],{"class":784},[774,2708,1814],{"class":791},[774,2710,1186],{"class":784},[774,2712,2556],{"class":791},[774,2714,950],{"class":784},[774,2716,2717],{"class":858}," status",[774,2719,862],{"class":784},[774,2721,1814],{"class":791},[774,2723,1186],{"class":784},[774,2725,2726],{"class":791},"status",[774,2728,950],{"class":784},[774,2730,2731],{"class":858}," durationMs",[774,2733,862],{"class":784},[774,2735,1814],{"class":791},[774,2737,1186],{"class":784},[774,2739,2740],{"class":791},"durationMs",[774,2742,1023],{"class":784},[774,2744,2745,2747],{"class":776,"line":868},[774,2746,1419],{"class":784},[774,2748,2323],{"class":858},[774,2750,2751],{"class":776,"line":879},[774,2752,839],{"emptyLinePlaceholder":838},[774,2754,2755,2757],{"class":776,"line":890},[774,2756,1074],{"class":780},[774,2758,785],{"class":784},[774,2760,2761,2764,2766,2768,2770,2772,2774,2776,2779,2781],{"class":776,"line":896},[774,2762,2763],{"class":858},"    url",[774,2765,862],{"class":784},[774,2767,1287],{"class":784},[774,2769,1183],{"class":791},[774,2771,1186],{"class":784},[774,2773,681],{"class":791},[774,2775,820],{"class":784},[774,2777,2778],{"class":829},"\u002Fv1\u002Fpush",[774,2780,1311],{"class":784},[774,2782,795],{"class":784},[774,2784,2785,2788,2790,2792,2794,2796,2798,2800,2802,2804,2806],{"class":776,"line":901},[774,2786,2787],{"class":858},"    headers",[774,2789,862],{"class":784},[774,2791,1472],{"class":784},[774,2793,826],{"class":784},[774,2795,1332],{"class":858},[774,2797,947],{"class":784},[774,2799,862],{"class":784},[774,2801,826],{"class":784},[774,2803,1341],{"class":829},[774,2805,947],{"class":784},[774,2807,1023],{"class":784},[774,2809,2810,2813,2815,2817,2819,2821,2823,2826,2828],{"class":776,"line":932},[774,2811,2812],{"class":858},"    body",[774,2814,862],{"class":784},[774,2816,1390],{"class":791},[774,2818,1186],{"class":784},[774,2820,1395],{"class":1046},[774,2822,1050],{"class":858},[774,2824,2825],{"class":791},"payload",[774,2827,1270],{"class":858},[774,2829,795],{"class":784},[774,2831,2832],{"class":776,"line":974},[774,2833,2834],{"class":784},"  }\n",[774,2836,2837],{"class":776,"line":1008},[774,2838,893],{"class":784},[741,2840,2842,2844],{"id":2841},"definedrain-non-http-transports",[587,2843,611],{}," (non-HTTP transports)",[545,2846,2847,2848,2850],{},"If your destination requires gRPC, a vendor SDK, a queue client, a WebSocket, or a raw socket, drop one level lower with ",[587,2849,611],{},". You own the transport; the toolkit still gives you config resolution, error isolation, and a consistent shape.",[764,2852,2854],{"className":766,"code":2853,"language":769,"meta":770,"style":770},"import { defineDrain } from 'evlog\u002Ftoolkit'\n\nexport const createCustomTransportDrain = () =>\n  defineDrain\u003C{ apiKey: string }>({\n    name: 'custom',\n    resolve: async () => ({ apiKey: process.env.MY_KEY! }),\n    send: async (events, cfg) => {\n      await myVendorSdk.publish(events, { token: cfg.apiKey })\n    },\n  })\n",[587,2855,2856,2875,2879,2895,2915,2930,2969,2992,3027,3031],{"__ignoreMap":770},[774,2857,2858,2860,2862,2865,2867,2869,2871,2873],{"class":776,"line":777},[774,2859,781],{"class":780},[774,2861,1472],{"class":784},[774,2863,2864],{"class":791}," defineDrain",[774,2866,1477],{"class":784},[774,2868,823],{"class":780},[774,2870,826],{"class":784},[774,2872,617],{"class":829},[774,2874,832],{"class":784},[774,2876,2877],{"class":776,"line":788},[774,2878,839],{"emptyLinePlaceholder":838},[774,2880,2881,2883,2885,2888,2890,2892],{"class":776,"line":798},[774,2882,1040],{"class":780},[774,2884,2199],{"class":845},[774,2886,2887],{"class":791}," createCustomTransportDrain ",[774,2889,926],{"class":784},[774,2891,1119],{"class":784},[774,2893,2894],{"class":845}," =>\n",[774,2896,2897,2900,2902,2905,2907,2909,2911,2913],{"class":776,"line":806},[774,2898,2899],{"class":1046},"  defineDrain",[774,2901,1537],{"class":784},[774,2903,2904],{"class":858}," apiKey",[774,2906,862],{"class":784},[774,2908,1514],{"class":849},[774,2910,1554],{"class":784},[774,2912,1050],{"class":791},[774,2914,1088],{"class":784},[774,2916,2917,2919,2921,2923,2926,2928],{"class":776,"line":817},[774,2918,1094],{"class":858},[774,2920,862],{"class":784},[774,2922,826],{"class":784},[774,2924,2925],{"class":829},"custom",[774,2927,947],{"class":784},[774,2929,795],{"class":784},[774,2931,2932,2934,2936,2938,2940,2942,2944,2946,2948,2950,2952,2954,2956,2958,2961,2963,2965,2967],{"class":776,"line":835},[774,2933,1111],{"class":1046},[774,2935,862],{"class":784},[774,2937,1116],{"class":845},[774,2939,1119],{"class":784},[774,2941,1122],{"class":845},[774,2943,1177],{"class":791},[774,2945,2309],{"class":784},[774,2947,2904],{"class":858},[774,2949,862],{"class":784},[774,2951,1607],{"class":791},[774,2953,1186],{"class":784},[774,2955,1612],{"class":791},[774,2957,1186],{"class":784},[774,2959,2960],{"class":791},"MY_KEY",[774,2962,1180],{"class":784},[774,2964,1477],{"class":784},[774,2966,1270],{"class":791},[774,2968,795],{"class":784},[774,2970,2971,2974,2976,2978,2980,2982,2984,2986,2988,2990],{"class":776,"line":842},[774,2972,2973],{"class":1046},"    send",[774,2975,862],{"class":784},[774,2977,1116],{"class":845},[774,2979,1177],{"class":784},[774,2981,1263],{"class":1053},[774,2983,950],{"class":784},[774,2985,1133],{"class":1053},[774,2987,1270],{"class":784},[774,2989,1122],{"class":845},[774,2991,785],{"class":784},[774,2993,2994,2997,3000,3002,3005,3007,3009,3011,3013,3015,3017,3019,3021,3023,3025],{"class":776,"line":855},[774,2995,2996],{"class":780},"      await",[774,2998,2999],{"class":791}," myVendorSdk",[774,3001,1186],{"class":784},[774,3003,3004],{"class":1046},"publish",[774,3006,1050],{"class":858},[774,3008,1263],{"class":791},[774,3010,950],{"class":784},[774,3012,1472],{"class":784},[774,3014,1519],{"class":858},[774,3016,862],{"class":784},[774,3018,1133],{"class":791},[774,3020,1186],{"class":784},[774,3022,677],{"class":791},[774,3024,1477],{"class":784},[774,3026,1168],{"class":858},[774,3028,3029],{"class":776,"line":868},[774,3030,1250],{"class":784},[774,3032,3033,3035],{"class":776,"line":879},[774,3034,1419],{"class":784},[774,3036,1168],{"class":791},[545,3038,3039,3040,3043,3044,3046,3047,3049,3050,3053,3054,3057,3058,3060],{},"Let ",[587,3041,3042],{},"send"," throw on failure. ",[587,3045,611],{}," handles the isolation: a direct call swallows the error and logs it with your drain's name, while the ",[587,3048,1448],{}," variant on the returned function rejects, which is how ",[554,3051,3052],{"href":496},"the pipeline","'s retry and ",[587,3055,3056],{},"onDropped"," observe failures. A ",[587,3059,3042],{}," that swallows its own errors makes your drain unretryable.",[741,3062,3064],{"id":3063},"what-a-draincontext-carries","What a DrainContext carries",[545,3066,3067,3068,3070,3071,3074],{},"When evlog calls your drain through ",[587,3069,2124],{},", it passes a ",[587,3072,3073],{},"DrainContext"," per event:",[764,3076,3079],{"className":766,"code":3077,"filename":3078,"language":769,"meta":770,"style":770},"interface DrainContext {\n  \u002F** The complete wide event with all accumulated context *\u002F\n  event: WideEvent\n\n  \u002F** Request metadata *\u002F\n  request?: {\n    method: string\n    path: string\n    requestId: string\n  }\n\n  \u002F** Safe HTTP headers (sensitive headers filtered) *\u002F\n  headers?: Record\u003Cstring, string>\n}\n\ninterface WideEvent {\n  timestamp: string\n  level: 'debug' | 'info' | 'warn' | 'error'\n  service: string\n  environment?: string\n  version?: string\n  region?: string\n  commitHash?: string\n  requestId?: string\n  \u002F\u002F ... plus all fields added via log.set()\n  [key: string]: unknown\n}\n","types.ts",[587,3080,3081,3090,3095,3105,3109,3114,3123,3132,3141,3150,3154,3158,3163,3185,3189,3193,3202,3211,3252,3260,3269,3278,3287,3296,3305,3310,3330],{"__ignoreMap":770},[774,3082,3083,3085,3088],{"class":776,"line":777},[774,3084,846],{"class":845},[774,3086,3087],{"class":849}," DrainContext",[774,3089,785],{"class":784},[774,3091,3092],{"class":776,"line":788},[774,3093,3094],{"class":2037},"  \u002F** The complete wide event with all accumulated context *\u002F\n",[774,3096,3097,3100,3102],{"class":776,"line":798},[774,3098,3099],{"class":858},"  event",[774,3101,862],{"class":784},[774,3103,3104],{"class":849}," WideEvent\n",[774,3106,3107],{"class":776,"line":806},[774,3108,839],{"emptyLinePlaceholder":838},[774,3110,3111],{"class":776,"line":817},[774,3112,3113],{"class":2037},"  \u002F** Request metadata *\u002F\n",[774,3115,3116,3119,3121],{"class":776,"line":835},[774,3117,3118],{"class":858},"  request",[774,3120,874],{"class":784},[774,3122,785],{"class":784},[774,3124,3125,3128,3130],{"class":776,"line":842},[774,3126,3127],{"class":858},"    method",[774,3129,862],{"class":784},[774,3131,865],{"class":849},[774,3133,3134,3137,3139],{"class":776,"line":855},[774,3135,3136],{"class":858},"    path",[774,3138,862],{"class":784},[774,3140,865],{"class":849},[774,3142,3143,3146,3148],{"class":776,"line":868},[774,3144,3145],{"class":858},"    requestId",[774,3147,862],{"class":784},[774,3149,865],{"class":849},[774,3151,3152],{"class":776,"line":879},[774,3153,2834],{"class":784},[774,3155,3156],{"class":776,"line":890},[774,3157,839],{"emptyLinePlaceholder":838},[774,3159,3160],{"class":776,"line":896},[774,3161,3162],{"class":2037},"  \u002F** Safe HTTP headers (sensitive headers filtered) *\u002F\n",[774,3164,3165,3168,3170,3173,3175,3178,3180,3182],{"class":776,"line":901},[774,3166,3167],{"class":858},"  headers",[774,3169,874],{"class":784},[774,3171,3172],{"class":849}," Record",[774,3174,914],{"class":784},[774,3176,3177],{"class":849},"string",[774,3179,950],{"class":784},[774,3181,1514],{"class":849},[774,3183,3184],{"class":784},">\n",[774,3186,3187],{"class":776,"line":932},[774,3188,893],{"class":784},[774,3190,3191],{"class":776,"line":974},[774,3192,839],{"emptyLinePlaceholder":838},[774,3194,3195,3197,3200],{"class":776,"line":1008},[774,3196,846],{"class":845},[774,3198,3199],{"class":849}," WideEvent",[774,3201,785],{"class":784},[774,3203,3204,3207,3209],{"class":776,"line":1026},[774,3205,3206],{"class":858},"  timestamp",[774,3208,862],{"class":784},[774,3210,865],{"class":849},[774,3212,3213,3216,3218,3220,3223,3225,3228,3230,3233,3235,3237,3239,3242,3244,3246,3248,3250],{"class":776,"line":1032},[774,3214,3215],{"class":858},"  level",[774,3217,862],{"class":784},[774,3219,826],{"class":784},[774,3221,3222],{"class":829},"debug",[774,3224,947],{"class":784},[774,3226,3227],{"class":784}," |",[774,3229,826],{"class":784},[774,3231,3232],{"class":829},"info",[774,3234,947],{"class":784},[774,3236,3227],{"class":784},[774,3238,826],{"class":784},[774,3240,3241],{"class":829},"warn",[774,3243,947],{"class":784},[774,3245,3227],{"class":784},[774,3247,826],{"class":784},[774,3249,1204],{"class":829},[774,3251,832],{"class":784},[774,3253,3254,3256,3258],{"class":776,"line":1037},[774,3255,2234],{"class":858},[774,3257,862],{"class":784},[774,3259,865],{"class":849},[774,3261,3262,3265,3267],{"class":776,"line":1071},[774,3263,3264],{"class":858},"  environment",[774,3266,874],{"class":784},[774,3268,865],{"class":849},[774,3270,3271,3274,3276],{"class":776,"line":1091},[774,3272,3273],{"class":858},"  version",[774,3275,874],{"class":784},[774,3277,865],{"class":849},[774,3279,3280,3283,3285],{"class":776,"line":1108},[774,3281,3282],{"class":858},"  region",[774,3284,874],{"class":784},[774,3286,865],{"class":849},[774,3288,3289,3292,3294],{"class":776,"line":1127},[774,3290,3291],{"class":858},"  commitHash",[774,3293,874],{"class":784},[774,3295,865],{"class":849},[774,3297,3298,3301,3303],{"class":776,"line":1171},[774,3299,3300],{"class":858},"  requestId",[774,3302,874],{"class":784},[774,3304,865],{"class":849},[774,3306,3307],{"class":776,"line":1196},[774,3308,3309],{"class":2037},"  \u002F\u002F ... plus all fields added via log.set()\n",[774,3311,3312,3315,3318,3320,3322,3325,3327],{"class":776,"line":1218},[774,3313,3314],{"class":791},"  [",[774,3316,3317],{"class":1053},"key",[774,3319,862],{"class":784},[774,3321,1514],{"class":849},[774,3323,3324],{"class":791},"]",[774,3326,862],{"class":784},[774,3328,3329],{"class":849}," unknown\n",[774,3331,3332],{"class":776,"line":1227},[774,3333,893],{"class":784},[545,3335,3336,3337,3339,3340,3343,3344,3346,3347,3350],{},"In the batched form your ",[587,3338,758],{}," \u002F ",[587,3341,3342],{},"send()"," receives, you get ",[587,3345,2478],{}," directly (the toolkit unwraps ",[587,3348,3349],{},"event"," from each context).",[741,3352,3354],{"id":3353},"reach-for-a-toolkit-helper","Reach for a toolkit helper",[545,3356,3357,3359],{},[587,3358,617],{}," exposes the same helpers every built-in adapter uses. The ones relevant to drains:",[562,3361,3362,3372],{},[565,3363,3364],{},[568,3365,3366,3369],{},[571,3367,3368],{},"Export",[571,3370,3371],{},"Purpose",[578,3373,3374,3384,3394,3406,3416,3429,3439,3453],{},[568,3375,3376,3381],{},[583,3377,3378],{},[587,3379,3380],{},"defineHttpDrain(spec)",[583,3382,3383],{},"The HTTP recipe — auto retries, timeouts, identity headers, error isolation",[568,3385,3386,3391],{},[583,3387,3388],{},[587,3389,3390],{},"defineDrain(spec)",[583,3392,3393],{},"Same contract for non-HTTP transports",[568,3395,3396,3401],{},[583,3397,3398],{},[587,3399,3400],{},"resolveAdapterConfig(ns, fields, overrides)",[583,3402,3403,3404,671],{},"Standard config priority chain (overrides → ",[587,3405,670],{},[568,3407,3408,3413],{},[583,3409,3410],{},[587,3411,3412],{},"httpPost(opts)",[583,3414,3415],{},"The retried POST helper used by every built-in HTTP adapter — handles timeout, retries, redacted error messages",[568,3417,3418,3423],{},[583,3419,3420],{},[587,3421,3422],{},"composeDrains(drains)",[583,3424,3425,3426,1270],{},"Combine multiple drains into one (errors isolated, runs concurrently with ",[587,3427,3428],{},"Promise.allSettled",[568,3430,3431,3436],{},[583,3432,3433],{},[587,3434,3435],{},"toTypedAttributeValue(value)",[583,3437,3438],{},"Convert any value to the typed attribute shape used by Axiom \u002F Sentry",[568,3440,3441,3446],{},[583,3442,3443],{},[587,3444,3445],{},"toOtlpAttributeValue(value)",[583,3447,3448,3449,3452],{},"Convert any value to the OTLP ",[587,3450,3451],{},"AnyValue"," shape (used by OTLP \u002F HyperDX \u002F PostHog logs)",[568,3454,3455,3463],{},[583,3456,3457,686,3460],{},[587,3458,3459],{},"OTEL_SEVERITY_NUMBER",[587,3461,3462],{},"OTEL_SEVERITY_TEXT",[583,3464,3465],{},"OTEL log severity tables",[741,3467,3469],{"id":3468},"identify-your-traffic-to-the-receiver","Identify your traffic to the receiver",[545,3471,3472,3474],{},[587,3473,598],{}," automatically tags every request with two headers so receivers can identify the traffic:",[562,3476,3477,3487],{},[565,3478,3479],{},[568,3480,3481,3484],{},[571,3482,3483],{},"Header",[571,3485,3486],{},"Value",[578,3488,3489,3502],{},[568,3490,3491,3496],{},[583,3492,3493],{},[587,3494,3495],{},"User-Agent",[583,3497,3498,3501],{},[587,3499,3500],{},"evlog\u002F\u003Cversion>"," (Node \u002F server runtimes only — browsers strip this header)",[568,3503,3504,3509],{},[583,3505,3506],{},[587,3507,3508],{},"X-Evlog-Source",[583,3510,3511,3512,3515],{},"The drain ",[587,3513,3514],{},"name"," you provided",[545,3517,3518,3519,3522,3523,1186],{},"If you build a drain on top of ",[587,3520,3521],{},"httpPost"," directly, you can override or suppress them. See ",[554,3524,485],{"href":486},[741,3526,3528],{"id":3527},"errors-are-already-handled-for-you","Errors are already handled for you",[545,3530,3531,3533],{},[587,3532,598],{}," enforces every best practice automatically:",[1943,3535,3536,3546,3556,3564],{},[632,3537,3538,3541,3542,3545],{},[549,3539,3540],{},"Never throws",": failures are caught and logged with the ",[587,3543,3544],{},"[evlog\u002F\u003Cname>]"," prefix.",[632,3547,3548,3551,3552,3555],{},[549,3549,3550],{},"Retries",": defaults to 2 attempts on transient errors (configurable via ",[587,3553,3554],{},"retries",").",[632,3557,3558,3561,3562,3555],{},[549,3559,3560],{},"Timeouts",": defaults to 5000ms (configurable via ",[587,3563,689],{},[632,3565,3566,3569,3570,3572,3573,3575],{},[549,3567,3568],{},"Graceful degradation",": ",[587,3571,662],{}," returning ",[587,3574,703],{}," makes the drain a no-op.",[545,3577,3578,3579,3581],{},"If you fall back to ",[587,3580,611],{},", follow the same rules manually.",[741,3583,3585],{"id":3584},"publish-it-as-a-community-package","Publish it as a community package",[545,3587,3588],{},"Recommended structure for a community drain:",[764,3590,3595],{"className":3591,"code":3593,"language":3594,"meta":770},[3592],"language-text","my-evlog-drain\u002F\n├─ src\u002F\n│  ├─ drain.ts        # createMyDrain via defineHttpDrain\n│  └─ index.ts        # re-exports\n├─ test\u002F              # vitest, mock fetch\n├─ package.json       # peerDependency: \"evlog\"\n└─ README.md\n","text",[587,3596,3593],{"__ignoreMap":770},[545,3598,3599,3600,3602,3603,3606,3607,3610],{},"Add ",[587,3601,2304],{}," as a ",[587,3604,3605],{},"peerDependency"," (not a ",[587,3608,3609],{},"dependency","), so your package will not pull in a copy of evlog at install time.",[3612,3613,3616,3617,3622],"callout",{"color":3614,"icon":3615},"neutral","i-lucide-heart","Built something great? ",[554,3618,3621],{"href":3619,"rel":3620},"https:\u002F\u002Fgithub.com\u002Fhugorcd\u002Fevlog\u002Fpulls",[734],"Open a PR"," to add a row to the Adapters table. The community will thank you.",[741,3624,3626],{"id":3625},"next-steps","Next steps",[629,3628,3629,3635,3643,3649,3655],{},[632,3630,3631,3634],{},[554,3632,3633],{"href":496},"Drain Pipeline",": wrap your drain in batch + retry + fanout for production",[632,3636,3637,3640,3641],{},[554,3638,3639],{"href":143},"Adapters Overview",": see how the built-in adapters use ",[587,3642,598],{},[632,3644,3645,3648],{},[554,3646,3647],{"href":478},"Custom Enrichers",": same toolkit shape for derived event fields",[632,3650,3651,3654],{},[554,3652,3653],{"href":456},"Custom Framework Integration",": same toolkit shape for HTTP frameworks",[632,3656,3657,3659],{},[554,3658,521],{"href":522},": security and production tips",[3661,3662,3663],"style",{},"html pre.shiki code .s7zQu, html code.shiki .s7zQu{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sHdIc, html code.shiki .sHdIc{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#EEFFFF;--shiki-default-font-style:italic;--shiki-dark:#BABED8;--shiki-dark-font-style:italic}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html pre.shiki code .sHwdD, html code.shiki .sHwdD{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}",{"title":770,"searchDepth":788,"depth":788,"links":3665},[3666,3670,3671,3672,3673,3675,3676,3677,3678,3679,3680],{"id":743,"depth":788,"text":3667,"children":3668},"defineHttpDrain (the HTTP recipe)",[3669],{"id":1453,"depth":798,"text":1454},{"id":1935,"depth":788,"text":1936},{"id":2015,"depth":788,"text":2016},{"id":2469,"depth":788,"text":2470},{"id":2841,"depth":788,"text":3674},"defineDrain (non-HTTP transports)",{"id":3063,"depth":788,"text":3064},{"id":3353,"depth":788,"text":3354},{"id":3468,"depth":788,"text":3469},{"id":3527,"depth":788,"text":3528},{"id":3584,"depth":788,"text":3585},{"id":3625,"depth":788,"text":3626},"Build a drain for any backend without a built-in adapter. Config resolution, retries, timeouts, and identity headers are handled for you.","md",[3684,3686,3688],{"label":3633,"icon":498,"to":496,"color":3614,"variant":3685},"subtle",{"label":3639,"icon":3687,"to":143,"color":3614,"variant":3685},"i-custom-plug",{"label":521,"icon":379,"to":522,"color":3614,"variant":3685},{},{"title":490,"icon":493},{"title":540,"description":3681},"mjDJKYkxvO_-0x_wT-mluy2fQ7M7FpoxHciIA1FdJSw",[3694,3696],{"title":485,"path":486,"stem":487,"description":3695,"icon":488,"children":-1},"Every drain request carries User-Agent and X-Evlog-Source so receivers can triage the traffic. Override or suppress them when you need to.",{"title":495,"path":496,"stem":497,"description":3697,"icon":498,"children":-1},"The pipeline wraps every drain: it batches events, retries on failure, fans out to several destinations, and ships browser logs.",1787336002364]