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Every built-in enricher is built on this same factory.",[569,570,573,576,658],"prompt",{":actions":571,"description":572,"icon":334},"[\"copy\",\"cursor\",\"claude\"]","Write a custom evlog enricher",[544,574,575],{},"Write a custom evlog enricher that adds derived context to every wide event.",[577,578,579,587,596,620,627,632,643,651],"ul",{},[580,581,554,582,559,584,586],"li",{},[556,583,558],{},[556,585,562],{}," — never write the merge \u002F error \u002F undefined logic by hand",[580,588,589,590,593,594],{},"Pass ",[556,591,592],{},"{ name, field, compute }"," to ",[556,595,558],{},[580,597,598,601,602,605,606,605,609,605,612,615,616,619],{},[556,599,600],{},"compute(ctx)"," reads from ",[556,603,604],{},"ctx.headers"," \u002F ",[556,607,608],{},"ctx.request",[556,610,611],{},"ctx.response",[556,613,614],{},"ctx.event"," and returns the value to merge (or ",[556,617,618],{},"undefined"," to skip)",[580,621,622,623,626],{},"Keep ",[556,624,625],{},"compute"," pure and fast: no awaitable I\u002FO on the hot path; cache anything expensive at module scope",[580,628,629,631],{},[556,630,558],{}," already handles: error isolation (errors logged, never thrown), single-field merge, overwrite option",[580,633,634,635,638,639,642],{},"Wire the enricher into my framework via the ",[556,636,637],{},"enrich"," option (middleware) or ",[556,640,641],{},"initLogger.enrichers"," (standalone)",[580,644,645,646,559,649],{},"For multiple enrichers, use ",[556,647,648],{},"composeEnrichers([...])",[556,650,562],{},[580,652,653,654,657],{},"For multi-hook features (enrich + drain side-effect, etc.), use ",[556,655,656],{},"definePlugin"," instead",[544,659,660,661,667,668],{},"Docs: ",[662,663,664],"a",{"href":664,"rel":665},"https:\u002F\u002Fwww.evlog.dev\u002Fextend\u002Fcustom-enrichers",[666],"nofollow","\nBuilt-in: ",[662,669,670],{"href":670,"rel":671},"https:\u002F\u002Fwww.evlog.dev\u002Fuse-cases\u002Fenrichers",[666],[673,674,676],"h2",{"id":675},"basic-example","Basic example",[544,678,679],{},"Add deployment metadata to every event. The enricher is the same function everywhere — only the wiring step differs per framework.",[681,682,683,857,1034,1202],"code-group",{},[684,685,691],"pre",{"className":686,"code":687,"filename":688,"language":689,"meta":690,"style":690},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","\u002F\u002F server\u002Fplugins\u002Fevlog-enrich.ts\nexport default defineNitroPlugin((nitroApp) => {\n  nitroApp.hooks.hook('evlog:enrich', (ctx) => {\n    ctx.event.deploymentId = process.env.DEPLOYMENT_ID\n    ctx.event.deployedBy = process.env.DEPLOYED_BY\n  })\n})\n","Nuxt \u002F Nitro","typescript","",[556,692,693,702,737,781,813,840,849],{"__ignoreMap":690},[694,695,698],"span",{"class":696,"line":697},"line",1,[694,699,701],{"class":700},"sHwdD","\u002F\u002F server\u002Fplugins\u002Fevlog-enrich.ts\n",[694,703,705,709,712,716,720,723,727,730,734],{"class":696,"line":704},2,[694,706,708],{"class":707},"s7zQu","export",[694,710,711],{"class":707}," default",[694,713,715],{"class":714},"s2Zo4"," defineNitroPlugin",[694,717,719],{"class":718},"sTEyZ","(",[694,721,719],{"class":722},"sMK4o",[694,724,726],{"class":725},"sHdIc","nitroApp",[694,728,729],{"class":722},")",[694,731,733],{"class":732},"spNyl"," =>",[694,735,736],{"class":722}," {\n",[694,738,740,743,746,749,751,754,757,760,764,766,769,772,775,777,779],{"class":696,"line":739},3,[694,741,742],{"class":718},"  nitroApp",[694,744,745],{"class":722},".",[694,747,748],{"class":718},"hooks",[694,750,745],{"class":722},[694,752,753],{"class":714},"hook",[694,755,719],{"class":756},"swJcz",[694,758,759],{"class":722},"'",[694,761,763],{"class":762},"sfazB","evlog:enrich",[694,765,759],{"class":722},[694,767,768],{"class":722},",",[694,770,771],{"class":722}," (",[694,773,774],{"class":725},"ctx",[694,776,729],{"class":722},[694,778,733],{"class":732},[694,780,736],{"class":722},[694,782,784,787,789,792,794,797,800,803,805,808,810],{"class":696,"line":783},4,[694,785,786],{"class":718},"    ctx",[694,788,745],{"class":722},[694,790,791],{"class":718},"event",[694,793,745],{"class":722},[694,795,796],{"class":718},"deploymentId",[694,798,799],{"class":722}," =",[694,801,802],{"class":718}," process",[694,804,745],{"class":722},[694,806,807],{"class":718},"env",[694,809,745],{"class":722},[694,811,812],{"class":718},"DEPLOYMENT_ID\n",[694,814,816,818,820,822,824,827,829,831,833,835,837],{"class":696,"line":815},5,[694,817,786],{"class":718},[694,819,745],{"class":722},[694,821,791],{"class":718},[694,823,745],{"class":722},[694,825,826],{"class":718},"deployedBy",[694,828,799],{"class":722},[694,830,802],{"class":718},[694,832,745],{"class":722},[694,834,807],{"class":718},[694,836,745],{"class":722},[694,838,839],{"class":718},"DEPLOYED_BY\n",[694,841,843,846],{"class":696,"line":842},6,[694,844,845],{"class":722},"  }",[694,847,848],{"class":756},")\n",[694,850,852,855],{"class":696,"line":851},7,[694,853,854],{"class":722},"}",[694,856,848],{"class":718},[684,858,860],{"className":686,"code":859,"filename":235,"language":689,"meta":690,"style":690},"\u002F\u002F lib\u002Fevlog.ts\nimport { createEvlog } from 'evlog\u002Fnext'\n\nexport const { withEvlog, useLogger, log, createError } = createEvlog({\n  service: 'my-app',\n  enrich: (ctx) => {\n    ctx.event.deploymentId = process.env.DEPLOYMENT_ID\n    ctx.event.deployedBy = process.env.DEPLOYED_BY\n  },\n})\n",[556,861,862,867,893,899,937,955,972,996,1021,1027],{"__ignoreMap":690},[694,863,864],{"class":696,"line":697},[694,865,866],{"class":700},"\u002F\u002F lib\u002Fevlog.ts\n",[694,868,869,872,875,878,881,884,887,890],{"class":696,"line":704},[694,870,871],{"class":707},"import",[694,873,874],{"class":722}," {",[694,876,877],{"class":718}," createEvlog",[694,879,880],{"class":722}," }",[694,882,883],{"class":707}," from",[694,885,886],{"class":722}," '",[694,888,889],{"class":762},"evlog\u002Fnext",[694,891,892],{"class":722},"'\n",[694,894,895],{"class":696,"line":739},[694,896,898],{"emptyLinePlaceholder":897},true,"\n",[694,900,901,903,906,908,911,913,916,918,921,923,926,928,930,932,934],{"class":696,"line":783},[694,902,708],{"class":707},[694,904,905],{"class":732}," const",[694,907,874],{"class":722},[694,909,910],{"class":718}," withEvlog",[694,912,768],{"class":722},[694,914,915],{"class":718}," useLogger",[694,917,768],{"class":722},[694,919,920],{"class":718}," log",[694,922,768],{"class":722},[694,924,925],{"class":718}," createError ",[694,927,854],{"class":722},[694,929,799],{"class":722},[694,931,877],{"class":714},[694,933,719],{"class":718},[694,935,936],{"class":722},"{\n",[694,938,939,942,945,947,950,952],{"class":696,"line":815},[694,940,941],{"class":756},"  service",[694,943,944],{"class":722},":",[694,946,886],{"class":722},[694,948,949],{"class":762},"my-app",[694,951,759],{"class":722},[694,953,954],{"class":722},",\n",[694,956,957,960,962,964,966,968,970],{"class":696,"line":842},[694,958,959],{"class":714},"  enrich",[694,961,944],{"class":722},[694,963,771],{"class":722},[694,965,774],{"class":725},[694,967,729],{"class":722},[694,969,733],{"class":732},[694,971,736],{"class":722},[694,973,974,976,978,980,982,984,986,988,990,992,994],{"class":696,"line":851},[694,975,786],{"class":718},[694,977,745],{"class":722},[694,979,791],{"class":718},[694,981,745],{"class":722},[694,983,796],{"class":718},[694,985,799],{"class":722},[694,987,802],{"class":718},[694,989,745],{"class":722},[694,991,807],{"class":718},[694,993,745],{"class":722},[694,995,812],{"class":718},[694,997,999,1001,1003,1005,1007,1009,1011,1013,1015,1017,1019],{"class":696,"line":998},8,[694,1000,786],{"class":718},[694,1002,745],{"class":722},[694,1004,791],{"class":718},[694,1006,745],{"class":722},[694,1008,826],{"class":718},[694,1010,799],{"class":722},[694,1012,802],{"class":718},[694,1014,745],{"class":722},[694,1016,807],{"class":718},[694,1018,745],{"class":722},[694,1020,839],{"class":718},[694,1022,1024],{"class":696,"line":1023},9,[694,1025,1026],{"class":722},"  },\n",[694,1028,1030,1032],{"class":696,"line":1029},10,[694,1031,854],{"class":722},[694,1033,848],{"class":718},[684,1035,1038],{"className":686,"code":1036,"filename":1037,"language":689,"meta":690,"style":690},"import type { EnrichContext } from 'evlog'\n\nconst deployment = (ctx: EnrichContext) => {\n  ctx.event.deploymentId = process.env.DEPLOYMENT_ID\n  ctx.event.deployedBy = process.env.DEPLOYED_BY\n}\n\napp.use(evlog({ enrichers: [deployment] })) \u002F\u002F Hono \u002F Express \u002F Elysia\n\u002F\u002F await app.register(evlog, { enrichers: [deployment] }) \u002F\u002F Fastify\n\u002F\u002F EvlogModule.forRoot({ enrichers: [deployment] }) \u002F\u002F NestJS\n","Hono \u002F Express \u002F Fastify \u002F Elysia \u002F NestJS",[556,1039,1040,1063,1067,1093,1118,1142,1147,1151,1186,1194],{"__ignoreMap":690},[694,1041,1042,1044,1047,1049,1052,1054,1056,1058,1061],{"class":696,"line":697},[694,1043,871],{"class":707},[694,1045,1046],{"class":707}," type",[694,1048,874],{"class":722},[694,1050,1051],{"class":718}," EnrichContext",[694,1053,880],{"class":722},[694,1055,883],{"class":707},[694,1057,886],{"class":722},[694,1059,1060],{"class":762},"evlog",[694,1062,892],{"class":722},[694,1064,1065],{"class":696,"line":704},[694,1066,898],{"emptyLinePlaceholder":897},[694,1068,1069,1072,1075,1078,1080,1082,1084,1087,1089,1091],{"class":696,"line":739},[694,1070,1071],{"class":732},"const",[694,1073,1074],{"class":718}," deployment ",[694,1076,1077],{"class":722},"=",[694,1079,771],{"class":722},[694,1081,774],{"class":725},[694,1083,944],{"class":722},[694,1085,1051],{"class":1086},"sBMFI",[694,1088,729],{"class":722},[694,1090,733],{"class":732},[694,1092,736],{"class":722},[694,1094,1095,1098,1100,1102,1104,1106,1108,1110,1112,1114,1116],{"class":696,"line":783},[694,1096,1097],{"class":718},"  ctx",[694,1099,745],{"class":722},[694,1101,791],{"class":718},[694,1103,745],{"class":722},[694,1105,796],{"class":718},[694,1107,799],{"class":722},[694,1109,802],{"class":718},[694,1111,745],{"class":722},[694,1113,807],{"class":718},[694,1115,745],{"class":722},[694,1117,812],{"class":718},[694,1119,1120,1122,1124,1126,1128,1130,1132,1134,1136,1138,1140],{"class":696,"line":815},[694,1121,1097],{"class":718},[694,1123,745],{"class":722},[694,1125,791],{"class":718},[694,1127,745],{"class":722},[694,1129,826],{"class":718},[694,1131,799],{"class":722},[694,1133,802],{"class":718},[694,1135,745],{"class":722},[694,1137,807],{"class":718},[694,1139,745],{"class":722},[694,1141,839],{"class":718},[694,1143,1144],{"class":696,"line":842},[694,1145,1146],{"class":722},"}\n",[694,1148,1149],{"class":696,"line":851},[694,1150,898],{"emptyLinePlaceholder":897},[694,1152,1153,1156,1158,1161,1163,1165,1167,1170,1173,1175,1178,1180,1183],{"class":696,"line":998},[694,1154,1155],{"class":718},"app",[694,1157,745],{"class":722},[694,1159,1160],{"class":714},"use",[694,1162,719],{"class":718},[694,1164,1060],{"class":714},[694,1166,719],{"class":718},[694,1168,1169],{"class":722},"{",[694,1171,1172],{"class":756}," enrichers",[694,1174,944],{"class":722},[694,1176,1177],{"class":718}," [deployment] ",[694,1179,854],{"class":722},[694,1181,1182],{"class":718},")) ",[694,1184,1185],{"class":700},"\u002F\u002F Hono \u002F Express \u002F Elysia\n",[694,1187,1188,1191],{"class":696,"line":1023},[694,1189,1190],{"class":700},"\u002F\u002F await app.register(evlog, { enrichers: [deployment] })",[694,1192,1193],{"class":700}," \u002F\u002F Fastify\n",[694,1195,1196,1199],{"class":696,"line":1029},[694,1197,1198],{"class":700},"\u002F\u002F EvlogModule.forRoot({ enrichers: [deployment] })",[694,1200,1201],{"class":700}," \u002F\u002F NestJS\n",[684,1203,1205],{"className":686,"code":1204,"filename":290,"language":689,"meta":690,"style":690},"\u002F\u002F index.ts\nimport type { EnrichContext } from 'evlog'\nimport { initLogger } from 'evlog'\n\nconst deployment = (ctx: EnrichContext) => {\n  ctx.event.deploymentId = process.env.DEPLOYMENT_ID\n  ctx.event.deployedBy = process.env.DEPLOYED_BY\n}\n\ninitLogger({ enrichers: [deployment] })\n",[556,1206,1207,1212,1232,1251,1255,1277,1301,1325,1329,1333],{"__ignoreMap":690},[694,1208,1209],{"class":696,"line":697},[694,1210,1211],{"class":700},"\u002F\u002F index.ts\n",[694,1213,1214,1216,1218,1220,1222,1224,1226,1228,1230],{"class":696,"line":704},[694,1215,871],{"class":707},[694,1217,1046],{"class":707},[694,1219,874],{"class":722},[694,1221,1051],{"class":718},[694,1223,880],{"class":722},[694,1225,883],{"class":707},[694,1227,886],{"class":722},[694,1229,1060],{"class":762},[694,1231,892],{"class":722},[694,1233,1234,1236,1238,1241,1243,1245,1247,1249],{"class":696,"line":739},[694,1235,871],{"class":707},[694,1237,874],{"class":722},[694,1239,1240],{"class":718}," initLogger",[694,1242,880],{"class":722},[694,1244,883],{"class":707},[694,1246,886],{"class":722},[694,1248,1060],{"class":762},[694,1250,892],{"class":722},[694,1252,1253],{"class":696,"line":783},[694,1254,898],{"emptyLinePlaceholder":897},[694,1256,1257,1259,1261,1263,1265,1267,1269,1271,1273,1275],{"class":696,"line":815},[694,1258,1071],{"class":732},[694,1260,1074],{"class":718},[694,1262,1077],{"class":722},[694,1264,771],{"class":722},[694,1266,774],{"class":725},[694,1268,944],{"class":722},[694,1270,1051],{"class":1086},[694,1272,729],{"class":722},[694,1274,733],{"class":732},[694,1276,736],{"class":722},[694,1278,1279,1281,1283,1285,1287,1289,1291,1293,1295,1297,1299],{"class":696,"line":842},[694,1280,1097],{"class":718},[694,1282,745],{"class":722},[694,1284,791],{"class":718},[694,1286,745],{"class":722},[694,1288,796],{"class":718},[694,1290,799],{"class":722},[694,1292,802],{"class":718},[694,1294,745],{"class":722},[694,1296,807],{"class":718},[694,1298,745],{"class":722},[694,1300,812],{"class":718},[694,1302,1303,1305,1307,1309,1311,1313,1315,1317,1319,1321,1323],{"class":696,"line":851},[694,1304,1097],{"class":718},[694,1306,745],{"class":722},[694,1308,791],{"class":718},[694,1310,745],{"class":722},[694,1312,826],{"class":718},[694,1314,799],{"class":722},[694,1316,802],{"class":718},[694,1318,745],{"class":722},[694,1320,807],{"class":718},[694,1322,745],{"class":722},[694,1324,839],{"class":718},[694,1326,1327],{"class":696,"line":998},[694,1328,1146],{"class":722},[694,1330,1331],{"class":696,"line":1023},[694,1332,898],{"emptyLinePlaceholder":897},[694,1334,1335,1338,1340,1342,1344,1346,1348,1350],{"class":696,"line":1029},[694,1336,1337],{"class":714},"initLogger",[694,1339,719],{"class":718},[694,1341,1169],{"class":722},[694,1343,1172],{"class":756},[694,1345,944],{"class":722},[694,1347,1177],{"class":718},[694,1349,854],{"class":722},[694,1351,848],{"class":718},[673,1353,1355],{"id":1354},"enrichcontext","EnrichContext",[544,1357,1358,1359,1361,1362,944],{},"The ",[556,1360,763],{}," hook receives an ",[556,1363,1355],{},[684,1365,1368],{"className":686,"code":1366,"filename":1367,"language":689,"meta":690,"style":690},"interface EnrichContext {\n  \u002F** The emitted wide event (mutable) *\u002F\n  event: WideEvent\n  \u002F** Request metadata *\u002F\n  request?: {\n    method?: string\n    path?: string\n    requestId?: string\n  }\n  \u002F** Safe HTTP request headers (sensitive headers filtered out) *\u002F\n  headers?: Record\u003Cstring, string>\n  \u002F** Response metadata *\u002F\n  response?: {\n    status?: number\n    headers?: Record\u003Cstring, string>\n  }\n}\n","enrich-context.ts",[556,1369,1370,1379,1384,1394,1399,1409,1419,1428,1437,1442,1447,1472,1478,1488,1499,1519,1524],{"__ignoreMap":690},[694,1371,1372,1375,1377],{"class":696,"line":697},[694,1373,1374],{"class":732},"interface",[694,1376,1051],{"class":1086},[694,1378,736],{"class":722},[694,1380,1381],{"class":696,"line":704},[694,1382,1383],{"class":700},"  \u002F** The emitted wide event (mutable) *\u002F\n",[694,1385,1386,1389,1391],{"class":696,"line":739},[694,1387,1388],{"class":756},"  event",[694,1390,944],{"class":722},[694,1392,1393],{"class":1086}," WideEvent\n",[694,1395,1396],{"class":696,"line":783},[694,1397,1398],{"class":700},"  \u002F** Request metadata *\u002F\n",[694,1400,1401,1404,1407],{"class":696,"line":815},[694,1402,1403],{"class":756},"  request",[694,1405,1406],{"class":722},"?:",[694,1408,736],{"class":722},[694,1410,1411,1414,1416],{"class":696,"line":842},[694,1412,1413],{"class":756},"    method",[694,1415,1406],{"class":722},[694,1417,1418],{"class":1086}," string\n",[694,1420,1421,1424,1426],{"class":696,"line":851},[694,1422,1423],{"class":756},"    path",[694,1425,1406],{"class":722},[694,1427,1418],{"class":1086},[694,1429,1430,1433,1435],{"class":696,"line":998},[694,1431,1432],{"class":756},"    requestId",[694,1434,1406],{"class":722},[694,1436,1418],{"class":1086},[694,1438,1439],{"class":696,"line":1023},[694,1440,1441],{"class":722},"  }\n",[694,1443,1444],{"class":696,"line":1029},[694,1445,1446],{"class":700},"  \u002F** Safe HTTP request headers (sensitive headers filtered out) *\u002F\n",[694,1448,1450,1453,1455,1458,1461,1464,1466,1469],{"class":696,"line":1449},11,[694,1451,1452],{"class":756},"  headers",[694,1454,1406],{"class":722},[694,1456,1457],{"class":1086}," Record",[694,1459,1460],{"class":722},"\u003C",[694,1462,1463],{"class":1086},"string",[694,1465,768],{"class":722},[694,1467,1468],{"class":1086}," string",[694,1470,1471],{"class":722},">\n",[694,1473,1475],{"class":696,"line":1474},12,[694,1476,1477],{"class":700},"  \u002F** Response metadata *\u002F\n",[694,1479,1481,1484,1486],{"class":696,"line":1480},13,[694,1482,1483],{"class":756},"  response",[694,1485,1406],{"class":722},[694,1487,736],{"class":722},[694,1489,1491,1494,1496],{"class":696,"line":1490},14,[694,1492,1493],{"class":756},"    status",[694,1495,1406],{"class":722},[694,1497,1498],{"class":1086}," number\n",[694,1500,1502,1505,1507,1509,1511,1513,1515,1517],{"class":696,"line":1501},15,[694,1503,1504],{"class":756},"    headers",[694,1506,1406],{"class":722},[694,1508,1457],{"class":1086},[694,1510,1460],{"class":722},[694,1512,1463],{"class":1086},[694,1514,768],{"class":722},[694,1516,1468],{"class":1086},[694,1518,1471],{"class":722},[694,1520,1522],{"class":696,"line":1521},16,[694,1523,1441],{"class":722},[694,1525,1527],{"class":696,"line":1526},17,[694,1528,1146],{"class":722},[1530,1531,1533,1536,1537,1540,1541,1540,1544,1547],"callout",{"color":1532,"icon":379},"success",[548,1534,1535],{},"Security:"," Sensitive headers (",[556,1538,1539],{},"authorization",", ",[556,1542,1543],{},"cookie",[556,1545,1546],{},"x-api-key",", etc.) are automatically filtered and never passed to enrichers.",[673,1549,1551,1552],{"id":1550},"recommended-pattern-defineenricher","Recommended pattern — ",[556,1553,558],{},[544,1555,1556,1557,1559],{},"Every built-in enricher uses this same factory. Provide ",[556,1558,566],{}," and you're done:",[684,1561,1564],{"className":686,"code":1562,"filename":1563,"language":689,"meta":690,"style":690},"import { defineEnricher, getHeader, type EnricherOptions } from 'evlog\u002Ftoolkit'\n\ninterface TenantInfo {\n  id: string\n  org?: string\n}\n\nexport function createTenantEnricher(options: EnricherOptions & { headerName?: string } = {}) {\n  const headerName = options.headerName ?? 'x-tenant-id'\n\n  return defineEnricher\u003CTenantInfo>({\n    name: 'tenant',\n    field: 'tenant',\n    compute: ({ headers }) => {\n      const id = getHeader(headers, headerName)\n      if (!id) return undefined\n      return { id }\n    },\n  }, options)\n}\n","server\u002Futils\u002Fenrichers.ts",[556,1565,1566,1597,1601,1610,1619,1628,1632,1636,1676,1703,1707,1726,1742,1757,1777,1800,1822,1834,1840,1850],{"__ignoreMap":690},[694,1567,1568,1570,1572,1575,1577,1580,1582,1584,1587,1589,1591,1593,1595],{"class":696,"line":697},[694,1569,871],{"class":707},[694,1571,874],{"class":722},[694,1573,1574],{"class":718}," defineEnricher",[694,1576,768],{"class":722},[694,1578,1579],{"class":718}," getHeader",[694,1581,768],{"class":722},[694,1583,1046],{"class":707},[694,1585,1586],{"class":718}," EnricherOptions",[694,1588,880],{"class":722},[694,1590,883],{"class":707},[694,1592,886],{"class":722},[694,1594,562],{"class":762},[694,1596,892],{"class":722},[694,1598,1599],{"class":696,"line":704},[694,1600,898],{"emptyLinePlaceholder":897},[694,1602,1603,1605,1608],{"class":696,"line":739},[694,1604,1374],{"class":732},[694,1606,1607],{"class":1086}," TenantInfo",[694,1609,736],{"class":722},[694,1611,1612,1615,1617],{"class":696,"line":783},[694,1613,1614],{"class":756},"  id",[694,1616,944],{"class":722},[694,1618,1418],{"class":1086},[694,1620,1621,1624,1626],{"class":696,"line":815},[694,1622,1623],{"class":756},"  org",[694,1625,1406],{"class":722},[694,1627,1418],{"class":1086},[694,1629,1630],{"class":696,"line":842},[694,1631,1146],{"class":722},[694,1633,1634],{"class":696,"line":851},[694,1635,898],{"emptyLinePlaceholder":897},[694,1637,1638,1640,1643,1646,1648,1651,1653,1655,1658,1660,1663,1665,1667,1669,1671,1674],{"class":696,"line":998},[694,1639,708],{"class":707},[694,1641,1642],{"class":732}," function",[694,1644,1645],{"class":714}," createTenantEnricher",[694,1647,719],{"class":722},[694,1649,1650],{"class":725},"options",[694,1652,944],{"class":722},[694,1654,1586],{"class":1086},[694,1656,1657],{"class":722}," &",[694,1659,874],{"class":722},[694,1661,1662],{"class":756}," headerName",[694,1664,1406],{"class":722},[694,1666,1468],{"class":1086},[694,1668,880],{"class":722},[694,1670,799],{"class":722},[694,1672,1673],{"class":722}," {})",[694,1675,736],{"class":722},[694,1677,1678,1681,1683,1685,1688,1690,1693,1696,1698,1701],{"class":696,"line":1023},[694,1679,1680],{"class":732},"  const",[694,1682,1662],{"class":718},[694,1684,799],{"class":722},[694,1686,1687],{"class":718}," options",[694,1689,745],{"class":722},[694,1691,1692],{"class":718},"headerName",[694,1694,1695],{"class":722}," ??",[694,1697,886],{"class":722},[694,1699,1700],{"class":762},"x-tenant-id",[694,1702,892],{"class":722},[694,1704,1705],{"class":696,"line":1029},[694,1706,898],{"emptyLinePlaceholder":897},[694,1708,1709,1712,1714,1716,1719,1722,1724],{"class":696,"line":1449},[694,1710,1711],{"class":707},"  return",[694,1713,1574],{"class":714},[694,1715,1460],{"class":722},[694,1717,1718],{"class":1086},"TenantInfo",[694,1720,1721],{"class":722},">",[694,1723,719],{"class":756},[694,1725,936],{"class":722},[694,1727,1728,1731,1733,1735,1738,1740],{"class":696,"line":1474},[694,1729,1730],{"class":756},"    name",[694,1732,944],{"class":722},[694,1734,886],{"class":722},[694,1736,1737],{"class":762},"tenant",[694,1739,759],{"class":722},[694,1741,954],{"class":722},[694,1743,1744,1747,1749,1751,1753,1755],{"class":696,"line":1480},[694,1745,1746],{"class":756},"    field",[694,1748,944],{"class":722},[694,1750,886],{"class":722},[694,1752,1737],{"class":762},[694,1754,759],{"class":722},[694,1756,954],{"class":722},[694,1758,1759,1762,1764,1767,1770,1773,1775],{"class":696,"line":1490},[694,1760,1761],{"class":714},"    compute",[694,1763,944],{"class":722},[694,1765,1766],{"class":722}," ({",[694,1768,1769],{"class":725}," headers",[694,1771,1772],{"class":722}," })",[694,1774,733],{"class":732},[694,1776,736],{"class":722},[694,1778,1779,1782,1785,1787,1789,1791,1794,1796,1798],{"class":696,"line":1501},[694,1780,1781],{"class":732},"      const",[694,1783,1784],{"class":718}," id",[694,1786,799],{"class":722},[694,1788,1579],{"class":714},[694,1790,719],{"class":756},[694,1792,1793],{"class":718},"headers",[694,1795,768],{"class":722},[694,1797,1662],{"class":718},[694,1799,848],{"class":756},[694,1801,1802,1805,1807,1810,1813,1816,1819],{"class":696,"line":1521},[694,1803,1804],{"class":707},"      if",[694,1806,771],{"class":756},[694,1808,1809],{"class":722},"!",[694,1811,1812],{"class":718},"id",[694,1814,1815],{"class":756},") ",[694,1817,1818],{"class":707},"return",[694,1820,1821],{"class":722}," undefined\n",[694,1823,1824,1827,1829,1831],{"class":696,"line":1526},[694,1825,1826],{"class":707},"      return",[694,1828,874],{"class":722},[694,1830,1784],{"class":718},[694,1832,1833],{"class":722}," }\n",[694,1835,1837],{"class":696,"line":1836},18,[694,1838,1839],{"class":722},"    },\n",[694,1841,1843,1846,1848],{"class":696,"line":1842},19,[694,1844,1845],{"class":722},"  },",[694,1847,1687],{"class":718},[694,1849,848],{"class":756},[694,1851,1853],{"class":696,"line":1852},20,[694,1854,1146],{"class":722},[544,1856,1857,1859],{},[556,1858,558],{}," automatically:",[577,1861,1862,1870,1884],{},[580,1863,1864,1865,1867,1868],{},"skips when ",[556,1866,566],{}," returns ",[556,1869,618],{},[580,1871,1872,1873,1876,1877,1880,1881,729],{},"merges the result into ",[556,1874,1875],{},"ctx.event[field]"," via ",[556,1878,1879],{},"mergeEventField"," (respecting ",[556,1882,1883],{},"options.overwrite",[580,1885,1886,1887,1890],{},"catches errors and logs them as ",[556,1888,1889],{},"[evlog\u002F\u003Cname>]"," instead of breaking the pipeline",[544,1892,1893],{},"Wire it like any other enricher:",[681,1895,1896,2010,2155,2256],{},[684,1897,1899],{"className":686,"code":1898,"filename":688,"language":689,"meta":690,"style":690},"\u002F\u002F server\u002Fplugins\u002Fevlog-enrich.ts\nimport { createTenantEnricher } from '~\u002Fserver\u002Futils\u002Fenrichers'\n\nexport default defineNitroPlugin((nitroApp) => {\n  const enrichTenant = createTenantEnricher({ headerName: 'x-org-id' })\n  nitroApp.hooks.hook('evlog:enrich', enrichTenant)\n})\n",[556,1900,1901,1905,1924,1928,1948,1978,2004],{"__ignoreMap":690},[694,1902,1903],{"class":696,"line":697},[694,1904,701],{"class":700},[694,1906,1907,1909,1911,1913,1915,1917,1919,1922],{"class":696,"line":704},[694,1908,871],{"class":707},[694,1910,874],{"class":722},[694,1912,1645],{"class":718},[694,1914,880],{"class":722},[694,1916,883],{"class":707},[694,1918,886],{"class":722},[694,1920,1921],{"class":762},"~\u002Fserver\u002Futils\u002Fenrichers",[694,1923,892],{"class":722},[694,1925,1926],{"class":696,"line":739},[694,1927,898],{"emptyLinePlaceholder":897},[694,1929,1930,1932,1934,1936,1938,1940,1942,1944,1946],{"class":696,"line":783},[694,1931,708],{"class":707},[694,1933,711],{"class":707},[694,1935,715],{"class":714},[694,1937,719],{"class":718},[694,1939,719],{"class":722},[694,1941,726],{"class":725},[694,1943,729],{"class":722},[694,1945,733],{"class":732},[694,1947,736],{"class":722},[694,1949,1950,1952,1955,1957,1959,1961,1963,1965,1967,1969,1972,1974,1976],{"class":696,"line":815},[694,1951,1680],{"class":732},[694,1953,1954],{"class":718}," enrichTenant",[694,1956,799],{"class":722},[694,1958,1645],{"class":714},[694,1960,719],{"class":756},[694,1962,1169],{"class":722},[694,1964,1662],{"class":756},[694,1966,944],{"class":722},[694,1968,886],{"class":722},[694,1970,1971],{"class":762},"x-org-id",[694,1973,759],{"class":722},[694,1975,880],{"class":722},[694,1977,848],{"class":756},[694,1979,1980,1982,1984,1986,1988,1990,1992,1994,1996,1998,2000,2002],{"class":696,"line":842},[694,1981,742],{"class":718},[694,1983,745],{"class":722},[694,1985,748],{"class":718},[694,1987,745],{"class":722},[694,1989,753],{"class":714},[694,1991,719],{"class":756},[694,1993,759],{"class":722},[694,1995,763],{"class":762},[694,1997,759],{"class":722},[694,1999,768],{"class":722},[694,2001,1954],{"class":718},[694,2003,848],{"class":756},[694,2005,2006,2008],{"class":696,"line":851},[694,2007,854],{"class":722},[694,2009,848],{"class":718},[684,2011,2013],{"className":686,"code":2012,"filename":235,"language":689,"meta":690,"style":690},"\u002F\u002F lib\u002Fevlog.ts\nimport { createEvlog } from 'evlog\u002Fnext'\nimport { createTenantEnricher } from '.\u002Fenrichers'\n\nconst enrichTenant = createTenantEnricher({ headerName: 'x-org-id' })\n\nexport const { withEvlog, useLogger, log, createError } = createEvlog({\n  service: 'my-app',\n  enrich: enrichTenant,\n})\n",[556,2014,2015,2019,2037,2056,2060,2089,2093,2125,2139,2149],{"__ignoreMap":690},[694,2016,2017],{"class":696,"line":697},[694,2018,866],{"class":700},[694,2020,2021,2023,2025,2027,2029,2031,2033,2035],{"class":696,"line":704},[694,2022,871],{"class":707},[694,2024,874],{"class":722},[694,2026,877],{"class":718},[694,2028,880],{"class":722},[694,2030,883],{"class":707},[694,2032,886],{"class":722},[694,2034,889],{"class":762},[694,2036,892],{"class":722},[694,2038,2039,2041,2043,2045,2047,2049,2051,2054],{"class":696,"line":739},[694,2040,871],{"class":707},[694,2042,874],{"class":722},[694,2044,1645],{"class":718},[694,2046,880],{"class":722},[694,2048,883],{"class":707},[694,2050,886],{"class":722},[694,2052,2053],{"class":762},".\u002Fenrichers",[694,2055,892],{"class":722},[694,2057,2058],{"class":696,"line":783},[694,2059,898],{"emptyLinePlaceholder":897},[694,2061,2062,2064,2067,2069,2071,2073,2075,2077,2079,2081,2083,2085,2087],{"class":696,"line":815},[694,2063,1071],{"class":732},[694,2065,2066],{"class":718}," enrichTenant ",[694,2068,1077],{"class":722},[694,2070,1645],{"class":714},[694,2072,719],{"class":718},[694,2074,1169],{"class":722},[694,2076,1662],{"class":756},[694,2078,944],{"class":722},[694,2080,886],{"class":722},[694,2082,1971],{"class":762},[694,2084,759],{"class":722},[694,2086,880],{"class":722},[694,2088,848],{"class":718},[694,2090,2091],{"class":696,"line":842},[694,2092,898],{"emptyLinePlaceholder":897},[694,2094,2095,2097,2099,2101,2103,2105,2107,2109,2111,2113,2115,2117,2119,2121,2123],{"class":696,"line":851},[694,2096,708],{"class":707},[694,2098,905],{"class":732},[694,2100,874],{"class":722},[694,2102,910],{"class":718},[694,2104,768],{"class":722},[694,2106,915],{"class":718},[694,2108,768],{"class":722},[694,2110,920],{"class":718},[694,2112,768],{"class":722},[694,2114,925],{"class":718},[694,2116,854],{"class":722},[694,2118,799],{"class":722},[694,2120,877],{"class":714},[694,2122,719],{"class":718},[694,2124,936],{"class":722},[694,2126,2127,2129,2131,2133,2135,2137],{"class":696,"line":998},[694,2128,941],{"class":756},[694,2130,944],{"class":722},[694,2132,886],{"class":722},[694,2134,949],{"class":762},[694,2136,759],{"class":722},[694,2138,954],{"class":722},[694,2140,2141,2143,2145,2147],{"class":696,"line":1023},[694,2142,959],{"class":756},[694,2144,944],{"class":722},[694,2146,1954],{"class":718},[694,2148,954],{"class":722},[694,2150,2151,2153],{"class":696,"line":1029},[694,2152,854],{"class":722},[694,2154,848],{"class":718},[684,2156,2158],{"className":686,"code":2157,"filename":1037,"language":689,"meta":690,"style":690},"import { createTenantEnricher } from '.\u002Fenrichers'\n\nconst enrichTenant = createTenantEnricher({ headerName: 'x-org-id' })\n\napp.use(evlog({ enrichers: [enrichTenant] }))\n\u002F\u002F await app.register(evlog, { enrichers: [enrichTenant] }) \u002F\u002F Fastify\n\u002F\u002F EvlogModule.forRoot({ enrichers: [enrichTenant] }) \u002F\u002F NestJS\n",[556,2159,2160,2178,2182,2210,2214,2242,2249],{"__ignoreMap":690},[694,2161,2162,2164,2166,2168,2170,2172,2174,2176],{"class":696,"line":697},[694,2163,871],{"class":707},[694,2165,874],{"class":722},[694,2167,1645],{"class":718},[694,2169,880],{"class":722},[694,2171,883],{"class":707},[694,2173,886],{"class":722},[694,2175,2053],{"class":762},[694,2177,892],{"class":722},[694,2179,2180],{"class":696,"line":704},[694,2181,898],{"emptyLinePlaceholder":897},[694,2183,2184,2186,2188,2190,2192,2194,2196,2198,2200,2202,2204,2206,2208],{"class":696,"line":739},[694,2185,1071],{"class":732},[694,2187,2066],{"class":718},[694,2189,1077],{"class":722},[694,2191,1645],{"class":714},[694,2193,719],{"class":718},[694,2195,1169],{"class":722},[694,2197,1662],{"class":756},[694,2199,944],{"class":722},[694,2201,886],{"class":722},[694,2203,1971],{"class":762},[694,2205,759],{"class":722},[694,2207,880],{"class":722},[694,2209,848],{"class":718},[694,2211,2212],{"class":696,"line":783},[694,2213,898],{"emptyLinePlaceholder":897},[694,2215,2216,2218,2220,2222,2224,2226,2228,2230,2232,2234,2237,2239],{"class":696,"line":815},[694,2217,1155],{"class":718},[694,2219,745],{"class":722},[694,2221,1160],{"class":714},[694,2223,719],{"class":718},[694,2225,1060],{"class":714},[694,2227,719],{"class":718},[694,2229,1169],{"class":722},[694,2231,1172],{"class":756},[694,2233,944],{"class":722},[694,2235,2236],{"class":718}," [enrichTenant] ",[694,2238,854],{"class":722},[694,2240,2241],{"class":718},"))\n",[694,2243,2244,2247],{"class":696,"line":842},[694,2245,2246],{"class":700},"\u002F\u002F await app.register(evlog, { enrichers: [enrichTenant] })",[694,2248,1193],{"class":700},[694,2250,2251,2254],{"class":696,"line":851},[694,2252,2253],{"class":700},"\u002F\u002F EvlogModule.forRoot({ enrichers: [enrichTenant] })",[694,2255,1201],{"class":700},[684,2257,2259],{"className":686,"code":2258,"filename":290,"language":689,"meta":690,"style":690},"import { initLogger } from 'evlog'\nimport { createTenantEnricher } from '.\u002Fenrichers'\n\ninitLogger({\n  enrichers: [createTenantEnricher({ headerName: 'x-org-id' })],\n})\n",[556,2260,2261,2279,2297,2301,2309,2343],{"__ignoreMap":690},[694,2262,2263,2265,2267,2269,2271,2273,2275,2277],{"class":696,"line":697},[694,2264,871],{"class":707},[694,2266,874],{"class":722},[694,2268,1240],{"class":718},[694,2270,880],{"class":722},[694,2272,883],{"class":707},[694,2274,886],{"class":722},[694,2276,1060],{"class":762},[694,2278,892],{"class":722},[694,2280,2281,2283,2285,2287,2289,2291,2293,2295],{"class":696,"line":704},[694,2282,871],{"class":707},[694,2284,874],{"class":722},[694,2286,1645],{"class":718},[694,2288,880],{"class":722},[694,2290,883],{"class":707},[694,2292,886],{"class":722},[694,2294,2053],{"class":762},[694,2296,892],{"class":722},[694,2298,2299],{"class":696,"line":739},[694,2300,898],{"emptyLinePlaceholder":897},[694,2302,2303,2305,2307],{"class":696,"line":783},[694,2304,1337],{"class":714},[694,2306,719],{"class":718},[694,2308,936],{"class":722},[694,2310,2311,2314,2316,2319,2322,2324,2326,2328,2330,2332,2334,2336,2338,2341],{"class":696,"line":815},[694,2312,2313],{"class":756},"  enrichers",[694,2315,944],{"class":722},[694,2317,2318],{"class":718}," [",[694,2320,2321],{"class":714},"createTenantEnricher",[694,2323,719],{"class":718},[694,2325,1169],{"class":722},[694,2327,1662],{"class":756},[694,2329,944],{"class":722},[694,2331,886],{"class":722},[694,2333,1971],{"class":762},[694,2335,759],{"class":722},[694,2337,880],{"class":722},[694,2339,2340],{"class":718},")]",[694,2342,954],{"class":722},[694,2344,2345,2347],{"class":696,"line":842},[694,2346,854],{"class":722},[694,2348,848],{"class":718},[673,2350,2352],{"id":2351},"combining-with-built-in-enrichers","Combining with built-in enrichers",[544,2354,2355,2356,2359,2360,559,2363,2365],{},"Custom and built-in enrichers compose freely — they're all just ",[556,2357,2358],{},"(ctx: EnrichContext) => void"," functions. Use ",[556,2361,2362],{},"composeEnrichers",[556,2364,562],{}," to combine them into a single callable:",[684,2367,2370],{"className":686,"code":2368,"filename":2369,"language":689,"meta":690,"style":690},"import { composeEnrichers, defineEnricher } from 'evlog\u002Ftoolkit'\nimport { createDefaultEnrichers } from 'evlog\u002Fenrichers'\n\nconst region = defineEnricher({\n  name: 'region',\n  field: 'region',\n  compute: () => process.env.FLY_REGION ?? process.env.AWS_REGION,\n})\n\nexport const enrich = composeEnrichers([\n  createDefaultEnrichers(), \u002F\u002F userAgent + geo + requestSize + traceContext\n  region,\n])\n","enrichers.ts",[556,2371,2372,2395,2415,2419,2434,2450,2465,2504,2510,2514,2530,2543,2550],{"__ignoreMap":690},[694,2373,2374,2376,2378,2381,2383,2385,2387,2389,2391,2393],{"class":696,"line":697},[694,2375,871],{"class":707},[694,2377,874],{"class":722},[694,2379,2380],{"class":718}," composeEnrichers",[694,2382,768],{"class":722},[694,2384,1574],{"class":718},[694,2386,880],{"class":722},[694,2388,883],{"class":707},[694,2390,886],{"class":722},[694,2392,562],{"class":762},[694,2394,892],{"class":722},[694,2396,2397,2399,2401,2404,2406,2408,2410,2413],{"class":696,"line":704},[694,2398,871],{"class":707},[694,2400,874],{"class":722},[694,2402,2403],{"class":718}," createDefaultEnrichers",[694,2405,880],{"class":722},[694,2407,883],{"class":707},[694,2409,886],{"class":722},[694,2411,2412],{"class":762},"evlog\u002Fenrichers",[694,2414,892],{"class":722},[694,2416,2417],{"class":696,"line":739},[694,2418,898],{"emptyLinePlaceholder":897},[694,2420,2421,2423,2426,2428,2430,2432],{"class":696,"line":783},[694,2422,1071],{"class":732},[694,2424,2425],{"class":718}," region ",[694,2427,1077],{"class":722},[694,2429,1574],{"class":714},[694,2431,719],{"class":718},[694,2433,936],{"class":722},[694,2435,2436,2439,2441,2443,2446,2448],{"class":696,"line":815},[694,2437,2438],{"class":756},"  name",[694,2440,944],{"class":722},[694,2442,886],{"class":722},[694,2444,2445],{"class":762},"region",[694,2447,759],{"class":722},[694,2449,954],{"class":722},[694,2451,2452,2455,2457,2459,2461,2463],{"class":696,"line":842},[694,2453,2454],{"class":756},"  field",[694,2456,944],{"class":722},[694,2458,886],{"class":722},[694,2460,2445],{"class":762},[694,2462,759],{"class":722},[694,2464,954],{"class":722},[694,2466,2467,2470,2472,2475,2477,2479,2481,2483,2485,2488,2491,2493,2495,2497,2499,2502],{"class":696,"line":851},[694,2468,2469],{"class":714},"  compute",[694,2471,944],{"class":722},[694,2473,2474],{"class":722}," ()",[694,2476,733],{"class":732},[694,2478,802],{"class":718},[694,2480,745],{"class":722},[694,2482,807],{"class":718},[694,2484,745],{"class":722},[694,2486,2487],{"class":718},"FLY_REGION ",[694,2489,2490],{"class":722},"??",[694,2492,802],{"class":718},[694,2494,745],{"class":722},[694,2496,807],{"class":718},[694,2498,745],{"class":722},[694,2500,2501],{"class":718},"AWS_REGION",[694,2503,954],{"class":722},[694,2505,2506,2508],{"class":696,"line":998},[694,2507,854],{"class":722},[694,2509,848],{"class":718},[694,2511,2512],{"class":696,"line":1023},[694,2513,898],{"emptyLinePlaceholder":897},[694,2515,2516,2518,2520,2523,2525,2527],{"class":696,"line":1029},[694,2517,708],{"class":707},[694,2519,905],{"class":732},[694,2521,2522],{"class":718}," enrich ",[694,2524,1077],{"class":722},[694,2526,2380],{"class":714},[694,2528,2529],{"class":718},"([\n",[694,2531,2532,2535,2538,2540],{"class":696,"line":1449},[694,2533,2534],{"class":714},"  createDefaultEnrichers",[694,2536,2537],{"class":718},"()",[694,2539,768],{"class":722},[694,2541,2542],{"class":700}," \u002F\u002F userAgent + geo + requestSize + traceContext\n",[694,2544,2545,2548],{"class":696,"line":1474},[694,2546,2547],{"class":718},"  region",[694,2549,954],{"class":722},[694,2551,2552],{"class":696,"line":1480},[694,2553,2554],{"class":718},"])\n",[673,2556,2558],{"id":2557},"more-examples","More examples",[544,2560,2561,2562,2564],{},"Each example below is a plain ",[556,2563,558],{}," call — wire it the same way as the basic example, regardless of framework.",[2566,2567,2569],"h3",{"id":2568},"feature-flags","Feature flags",[684,2571,2574],{"className":686,"code":2572,"filename":2573,"language":689,"meta":690,"style":690},"import { defineEnricher } from 'evlog\u002Ftoolkit'\n\nexport const featureFlags = defineEnricher({\n  name: 'feature-flags',\n  field: 'featureFlags',\n  compute: () => ({\n    newCheckout: isEnabled('new-checkout'),\n    betaApi: isEnabled('beta-api'),\n  }),\n})\n","enricher-feature-flags.ts",[556,2575,2576,2594,2598,2615,2629,2644,2658,2681,2703,2711],{"__ignoreMap":690},[694,2577,2578,2580,2582,2584,2586,2588,2590,2592],{"class":696,"line":697},[694,2579,871],{"class":707},[694,2581,874],{"class":722},[694,2583,1574],{"class":718},[694,2585,880],{"class":722},[694,2587,883],{"class":707},[694,2589,886],{"class":722},[694,2591,562],{"class":762},[694,2593,892],{"class":722},[694,2595,2596],{"class":696,"line":704},[694,2597,898],{"emptyLinePlaceholder":897},[694,2599,2600,2602,2604,2607,2609,2611,2613],{"class":696,"line":739},[694,2601,708],{"class":707},[694,2603,905],{"class":732},[694,2605,2606],{"class":718}," featureFlags ",[694,2608,1077],{"class":722},[694,2610,1574],{"class":714},[694,2612,719],{"class":718},[694,2614,936],{"class":722},[694,2616,2617,2619,2621,2623,2625,2627],{"class":696,"line":783},[694,2618,2438],{"class":756},[694,2620,944],{"class":722},[694,2622,886],{"class":722},[694,2624,2568],{"class":762},[694,2626,759],{"class":722},[694,2628,954],{"class":722},[694,2630,2631,2633,2635,2637,2640,2642],{"class":696,"line":815},[694,2632,2454],{"class":756},[694,2634,944],{"class":722},[694,2636,886],{"class":722},[694,2638,2639],{"class":762},"featureFlags",[694,2641,759],{"class":722},[694,2643,954],{"class":722},[694,2645,2646,2648,2650,2652,2654,2656],{"class":696,"line":842},[694,2647,2469],{"class":714},[694,2649,944],{"class":722},[694,2651,2474],{"class":722},[694,2653,733],{"class":732},[694,2655,771],{"class":718},[694,2657,936],{"class":722},[694,2659,2660,2663,2665,2668,2670,2672,2675,2677,2679],{"class":696,"line":851},[694,2661,2662],{"class":756},"    newCheckout",[694,2664,944],{"class":722},[694,2666,2667],{"class":714}," isEnabled",[694,2669,719],{"class":718},[694,2671,759],{"class":722},[694,2673,2674],{"class":762},"new-checkout",[694,2676,759],{"class":722},[694,2678,729],{"class":718},[694,2680,954],{"class":722},[694,2682,2683,2686,2688,2690,2692,2694,2697,2699,2701],{"class":696,"line":998},[694,2684,2685],{"class":756},"    betaApi",[694,2687,944],{"class":722},[694,2689,2667],{"class":714},[694,2691,719],{"class":718},[694,2693,759],{"class":722},[694,2695,2696],{"class":762},"beta-api",[694,2698,759],{"class":722},[694,2700,729],{"class":718},[694,2702,954],{"class":722},[694,2704,2705,2707,2709],{"class":696,"line":1023},[694,2706,845],{"class":722},[694,2708,729],{"class":718},[694,2710,954],{"class":722},[694,2712,2713,2715],{"class":696,"line":1029},[694,2714,854],{"class":722},[694,2716,848],{"class":718},[2566,2718,2720],{"id":2719},"response-time-classification","Response time classification",[684,2722,2725],{"className":686,"code":2723,"filename":2724,"language":689,"meta":690,"style":690},"import { defineEnricher } from 'evlog\u002Ftoolkit'\n\nexport const performanceTier = defineEnricher\u003Cstring>({\n  name: 'performance-tier',\n  field: 'performanceTier',\n  compute: ({ event }) => {\n    const durationMs = event.durationMs\n    if (durationMs === undefined) return undefined\n    if (durationMs \u003C 100) return 'fast'\n    if (durationMs \u003C 500) return 'normal'\n    if (durationMs \u003C 2000) return 'slow'\n    return 'critical'\n  },\n})\n","enricher-perf-tier.ts",[556,2726,2727,2745,2749,2772,2787,2802,2819,2836,2858,2884,2908,2932,2944,2948],{"__ignoreMap":690},[694,2728,2729,2731,2733,2735,2737,2739,2741,2743],{"class":696,"line":697},[694,2730,871],{"class":707},[694,2732,874],{"class":722},[694,2734,1574],{"class":718},[694,2736,880],{"class":722},[694,2738,883],{"class":707},[694,2740,886],{"class":722},[694,2742,562],{"class":762},[694,2744,892],{"class":722},[694,2746,2747],{"class":696,"line":704},[694,2748,898],{"emptyLinePlaceholder":897},[694,2750,2751,2753,2755,2758,2760,2762,2764,2766,2768,2770],{"class":696,"line":739},[694,2752,708],{"class":707},[694,2754,905],{"class":732},[694,2756,2757],{"class":718}," performanceTier ",[694,2759,1077],{"class":722},[694,2761,1574],{"class":714},[694,2763,1460],{"class":722},[694,2765,1463],{"class":1086},[694,2767,1721],{"class":722},[694,2769,719],{"class":718},[694,2771,936],{"class":722},[694,2773,2774,2776,2778,2780,2783,2785],{"class":696,"line":783},[694,2775,2438],{"class":756},[694,2777,944],{"class":722},[694,2779,886],{"class":722},[694,2781,2782],{"class":762},"performance-tier",[694,2784,759],{"class":722},[694,2786,954],{"class":722},[694,2788,2789,2791,2793,2795,2798,2800],{"class":696,"line":815},[694,2790,2454],{"class":756},[694,2792,944],{"class":722},[694,2794,886],{"class":722},[694,2796,2797],{"class":762},"performanceTier",[694,2799,759],{"class":722},[694,2801,954],{"class":722},[694,2803,2804,2806,2808,2810,2813,2815,2817],{"class":696,"line":842},[694,2805,2469],{"class":714},[694,2807,944],{"class":722},[694,2809,1766],{"class":722},[694,2811,2812],{"class":725}," event",[694,2814,1772],{"class":722},[694,2816,733],{"class":732},[694,2818,736],{"class":722},[694,2820,2821,2824,2827,2829,2831,2833],{"class":696,"line":851},[694,2822,2823],{"class":732},"    const",[694,2825,2826],{"class":718}," durationMs",[694,2828,799],{"class":722},[694,2830,2812],{"class":718},[694,2832,745],{"class":722},[694,2834,2835],{"class":718},"durationMs\n",[694,2837,2838,2841,2843,2846,2849,2852,2854,2856],{"class":696,"line":998},[694,2839,2840],{"class":707},"    if",[694,2842,771],{"class":756},[694,2844,2845],{"class":718},"durationMs",[694,2847,2848],{"class":722}," ===",[694,2850,2851],{"class":722}," undefined",[694,2853,1815],{"class":756},[694,2855,1818],{"class":707},[694,2857,1821],{"class":722},[694,2859,2860,2862,2864,2866,2869,2873,2875,2877,2879,2882],{"class":696,"line":1023},[694,2861,2840],{"class":707},[694,2863,771],{"class":756},[694,2865,2845],{"class":718},[694,2867,2868],{"class":722}," \u003C",[694,2870,2872],{"class":2871},"sbssI"," 100",[694,2874,1815],{"class":756},[694,2876,1818],{"class":707},[694,2878,886],{"class":722},[694,2880,2881],{"class":762},"fast",[694,2883,892],{"class":722},[694,2885,2886,2888,2890,2892,2894,2897,2899,2901,2903,2906],{"class":696,"line":1029},[694,2887,2840],{"class":707},[694,2889,771],{"class":756},[694,2891,2845],{"class":718},[694,2893,2868],{"class":722},[694,2895,2896],{"class":2871}," 500",[694,2898,1815],{"class":756},[694,2900,1818],{"class":707},[694,2902,886],{"class":722},[694,2904,2905],{"class":762},"normal",[694,2907,892],{"class":722},[694,2909,2910,2912,2914,2916,2918,2921,2923,2925,2927,2930],{"class":696,"line":1449},[694,2911,2840],{"class":707},[694,2913,771],{"class":756},[694,2915,2845],{"class":718},[694,2917,2868],{"class":722},[694,2919,2920],{"class":2871}," 2000",[694,2922,1815],{"class":756},[694,2924,1818],{"class":707},[694,2926,886],{"class":722},[694,2928,2929],{"class":762},"slow",[694,2931,892],{"class":722},[694,2933,2934,2937,2939,2942],{"class":696,"line":1474},[694,2935,2936],{"class":707},"    return",[694,2938,886],{"class":722},[694,2940,2941],{"class":762},"critical",[694,2943,892],{"class":722},[694,2945,2946],{"class":696,"line":1480},[694,2947,1026],{"class":722},[694,2949,2950,2952],{"class":696,"line":1490},[694,2951,854],{"class":722},[694,2953,848],{"class":718},[673,2955,2957],{"id":2956},"when-to-reach-for-a-plugin-instead","When to reach for a plugin instead",[544,2959,2960,2961,2964],{},"If your feature mixes enrichment with other hooks (e.g. enrich + tail-sample + side-effect on drain), use a ",[662,2962,2963],{"href":474},"plugin"," instead — one cohesive object covering several lifecycle points.",[673,2966,2968],{"id":2967},"next-steps","Next steps",[577,2970,2971,2977,2982],{},[580,2972,2973,2976],{},[662,2974,2975],{"href":432},"Built-in Enrichers"," — User Agent, Geo, Request Size, Trace Context",[580,2978,2979,2981],{},[662,2980,473],{"href":474}," — multi-hook extensions (drain + enrich + keep in one object)",[580,2983,2984,2986],{},[662,2985,138],{"href":143}," — send enriched events to external services",[2988,2989,2990],"style",{},"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}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 .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}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 pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}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 .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}",{"title":690,"searchDepth":704,"depth":704,"links":2992},[2993,2994,2995,2997,2998,3002,3003],{"id":675,"depth":704,"text":676},{"id":1354,"depth":704,"text":1355},{"id":1550,"depth":704,"text":2996},"Recommended pattern — defineEnricher",{"id":2351,"depth":704,"text":2352},{"id":2557,"depth":704,"text":2558,"children":2999},[3000,3001],{"id":2568,"depth":739,"text":2569},{"id":2719,"depth":739,"text":2720},{"id":2956,"depth":704,"text":2957},{"id":2967,"depth":704,"text":2968},"Write custom enrichers to add derived context to your wide events. Add deployment metadata, tenant IDs, feature flags, geo, or any computed data — the toolkit handles error isolation, undefined skipping, and the merge step.","md",[3007,3010],{"label":2975,"icon":458,"to":432,"color":3008,"variant":3009},"neutral","subtle",{"label":473,"icon":448,"to":474,"color":3008,"variant":3009},{},{"title":477,"icon":434},{"title":536,"description":3004},"Hj_oS2ASmFmkR37OiDVwiMLPjDgeLIU8Y-7rY5W6z9w",[3016,3018],{"title":473,"path":474,"stem":475,"description":3017,"icon":448,"children":-1},"definePlugin is the canonical extension point for evlog — opt into any subset of setup, onRequestStart, enrich, keep, drain, onRequestFinish, onClientLog, extendLogger from a single cohesive object.",{"title":481,"path":482,"stem":483,"description":3019,"icon":64,"children":-1},"Decide post-hoc whether to keep an event with full knowledge of its outcome (status, duration, errors). The opposite of head sampling — keep all errors and slow requests while throwing away healthy noise.",1786743655061]