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Use ",[628,629,630],"a",{"href":301},"Standalone TypeScript"," for scripts, libraries, and workers, and ",[628,633,295],{"href":296}," on the edge.",[636,637,639],"h2",{"id":638},"pick-your-framework","Pick your framework",[641,642,643,665],"table",{},[644,645,646],"thead",{},[647,648,649,653,656,659,662],"tr",{},[650,651,652],"th",{},"Framework",[650,654,655],{},"Import",[650,657,658],{},"Type",[650,660,661],{},"Logger Access",[650,663,664],{},"Status",[666,667,668,691,712,736,755,775,793,815,834,856,878,901,924,947,967,992,1012,1030],"tbody",{},[647,669,670,675,680,683,688],{},[671,672,673],"td",{},[628,674,240],{"href":241},[671,676,677],{},[609,678,679],{},"evlog\u002Fnuxt",[671,681,682],{},"Module",[671,684,685],{},[609,686,687],{},"useLogger(event)",[671,689,690],{},"Stable",[647,692,693,697,702,705,710],{},[671,694,695],{},[628,696,245],{"href":246},[671,698,699],{},[609,700,701],{},"evlog\u002Fnext",[671,703,704],{},"Factory",[671,706,707],{},[609,708,709],{},"useLogger()",[671,711,690],{},[647,713,714,718,723,726,734],{},[671,715,716],{},[628,717,250],{"href":251},[671,719,720],{},[609,721,722],{},"evlog\u002Fsveltekit",[671,724,725],{},"Hooks",[671,727,728,731,732],{},[609,729,730],{},"event.locals.log"," \u002F ",[609,733,709],{},[671,735,690],{},[647,737,738,742,747,749,753],{},[671,739,740],{},[628,741,255],{"href":256},[671,743,744],{},[609,745,746],{},"evlog\u002Fnitro",[671,748,682],{},[671,750,751],{},[609,752,687],{},[671,754,690],{},[647,756,757,761,766,768,773],{},[671,758,759],{},[628,760,260],{"href":261},[671,762,763],{},[609,764,765],{},"evlog\u002Fnitro\u002Fv3",[671,767,682],{},[671,769,770],{},[609,771,772],{},"useRequest().context.log",[671,774,690],{},[647,776,777,782,786,788,791],{},[671,778,779],{},[628,780,781],{"href":261},"TanStack Router",[671,783,784],{},[609,785,765],{},[671,787,682],{},[671,789,790],{},"Via TanStack Start (uses Nitro v3)",[671,792,690],{},[647,794,795,799,804,806,813],{},[671,796,797],{},[628,798,290],{"href":291},[671,800,801],{},[609,802,803],{},"evlog\u002Freact-router",[671,805,374],{},[671,807,808,731,811],{},[609,809,810],{},"context.get(loggerContext)",[609,812,709],{},[671,814,690],{},[647,816,817,821,826,828,832],{},[671,818,819],{},[628,820,265],{"href":266},[671,822,823],{},[609,824,825],{},"evlog\u002Fnestjs",[671,827,682],{},[671,829,830],{},[609,831,709],{},[671,833,690],{},[647,835,836,840,845,847,854],{},[671,837,838],{},[628,839,270],{"href":271},[671,841,842],{},[609,843,844],{},"evlog\u002Fexpress",[671,846,374],{},[671,848,849,731,852],{},[609,850,851],{},"req.log",[609,853,709],{},[671,855,690],{},[647,857,858,862,867,869,876],{},[671,859,860],{},[628,861,275],{"href":276},[671,863,864],{},[609,865,866],{},"evlog\u002Fhono",[671,868,374],{},[671,870,871,731,874],{},[609,872,873],{},"c.get('log')",[609,875,709],{},[671,877,690],{},[647,879,880,884,889,892,899],{},[671,881,882],{},[628,883,280],{"href":281},[671,885,886],{},[609,887,888],{},"evlog\u002Ffastify",[671,890,891],{},"Plugin",[671,893,894,731,897],{},[609,895,896],{},"request.log",[609,898,709],{},[671,900,690],{},[647,902,903,907,912,914,922],{},[671,904,905],{},[628,906,285],{"href":286},[671,908,909],{},[609,910,911],{},"evlog\u002Felysia",[671,913,891],{},[671,915,916,919,920],{},[609,917,918],{},"log"," (context) \u002F ",[609,921,709],{},[671,923,690],{},[647,925,926,930,935,938,945],{},[671,927,928],{},[628,929,309],{"href":310},[671,931,932],{},[609,933,934],{},"evlog\u002Forpc",[671,936,937],{},"Handler wrapper + middleware",[671,939,940,731,943],{},[609,941,942],{},"context.log",[609,944,709],{},[671,946,690],{},[647,948,949,953,958,960,965],{},[671,950,951],{},[628,952,295],{"href":296},[671,954,955],{},[609,956,957],{},"evlog\u002Fworkers",[671,959,704],{},[671,961,962],{},[609,963,964],{},"createWorkersLogger()",[671,966,690],{},[647,968,969,973,978,981,989],{},[671,970,971],{},[628,972,314],{"href":315},[671,974,975],{},[609,976,977],{},"evlog",[671,979,980],{},"Manual",[671,982,983,731,986],{},[609,984,985],{},"createLogger()",[609,987,988],{},"createRequestLogger()",[671,990,991],{},"Guide",[647,993,994,998,1002,1004,1010],{},[671,995,996],{},[628,997,300],{"href":301},[671,999,1000],{},[609,1001,977],{},[671,1003,980],{},[671,1005,1006,731,1008],{},[609,1007,985],{},[609,1009,988],{},[671,1011,690],{},[647,1013,1014,1018,1022,1024,1028],{},[671,1015,1016],{},[628,1017,304],{"href":305},[671,1019,1020],{},[609,1021,977],{},[671,1023,980],{},[671,1025,1026],{},[609,1027,988],{},[671,1029,991],{},[647,1031,1032,1037,1042,1045,1050],{},[671,1033,1034],{},[628,1035,1036],{"href":491},"Custom",[671,1038,1039],{},[609,1040,1041],{},"evlog\u002Ftoolkit",[671,1043,1044],{},"Build your own",[671,1046,1047],{},[609,1048,1049],{},"createMiddlewareLogger()",[671,1051,1052],{},"Beta",[636,1054,1056],{"id":1055},"what-differs-from-one-framework-to-the-next","What differs from one framework to the next",[605,1058,1059],{},"Two things differ per framework: how you start evlog, and how a handler reaches the request logger.",[1061,1062,1064],"h3",{"id":1063},"start-evlog","Start evlog",[641,1066,1067,1076],{},[644,1068,1069],{},[647,1070,1071,1074],{},[650,1072,1073],{},"Pattern",[650,1075,231],{},[666,1077,1078,1089,1099,1108,1116],{},[647,1079,1080,1086],{},[671,1081,1082,1085],{},[609,1083,1084],{},"evlog(options)"," middleware \u002F plugin",[671,1087,1088],{},"Hono, Express, Fastify, Elysia, SvelteKit, React Router",[647,1090,1091,1097],{},[671,1092,1093,1096],{},[609,1094,1095],{},"createEvlog(options)"," factory",[671,1098,245],{},[647,1100,1101,1106],{},[671,1102,1103],{},[609,1104,1105],{},"EvlogModule.forRoot()",[671,1107,265],{},[647,1109,1110,1113],{},[671,1111,1112],{},"Module default export",[671,1114,1115],{},"Nuxt, Nitro v2\u002Fv3",[647,1117,1118,1121],{},[671,1119,1120],{},"Manual factory",[671,1122,1123,1124,1127],{},"Cloudflare Workers (",[609,1125,1126],{},"createWorkersLogger","), Standalone, AWS Lambda, Astro",[1061,1129,1131],{"id":1130},"reach-the-logger-from-a-handler","Reach the logger from a handler",[641,1133,1134,1142],{},[644,1135,1136],{},[647,1137,1138,1140],{},[650,1139,1073],{},[650,1141,231],{},[666,1143,1144,1153,1162,1170,1178,1186,1194,1202],{},[647,1145,1146,1150],{},[671,1147,1148],{},[609,1149,687],{},[671,1151,1152],{},"Nuxt, Nitro",[647,1154,1155,1159],{},[671,1156,1157],{},[609,1158,709],{},[671,1160,1161],{},"Next.js, NestJS, Express, Fastify, Elysia, SvelteKit, React Router, Hono",[647,1163,1164,1168],{},[671,1165,1166],{},[609,1167,873],{},[671,1169,275],{},[647,1171,1172,1176],{},[671,1173,1174],{},[609,1175,851],{},[671,1177,270],{},[647,1179,1180,1184],{},[671,1181,1182],{},[609,1183,896],{},[671,1185,280],{},[647,1187,1188,1192],{},[671,1189,1190],{},[609,1191,730],{},[671,1193,250],{},[647,1195,1196,1200],{},[671,1197,1198],{},[609,1199,810],{},[671,1201,290],{},[647,1203,1204,1210],{},[671,1205,1206,731,1208],{},[609,1207,988],{},[609,1209,985],{},[671,1211,1212],{},"Standalone, Workers, manual setups",[622,1214,1216,1217,1219,1220,1222,1223,1225,1226,1229],{"color":1215,"icon":13},"info","On Hono, use ",[609,1218,873],{}," inside handlers and ",[609,1221,709],{}," from ",[609,1224,866],{}," in the layers underneath. See ",[628,1227,1228],{"href":276},"Hono integration",".",[636,1231,1233],{"id":1232},"full-stack-frameworks","Full-stack frameworks",[1235,1236,1237,1254,1264,1269,1272,1278,1286],"card-group",{},[1238,1239,1240,1241,1243,1244,612,1247,1250,1251,1229],"card",{"color":624,"icon":243,"title":240,"to":241},"Register ",[609,1242,679],{}," in your modules to get auto-imported ",[609,1245,1246],{},"useLogger",[609,1248,1249],{},"createError",", and ",[609,1252,1253],{},"parseError",[1238,1255,1256,1259,1260,1263],{"color":624,"icon":248,"title":245,"to":246},[609,1257,1258],{},"createEvlog()"," factory with ",[609,1261,1262],{},"withEvlog()"," handler wrapper and client provider.",[1238,1265,1266,1267,1229],{"color":624,"icon":253,"title":250,"to":251},"Handle and handleError hooks with request-scoped logger on ",[609,1268,730],{},[1238,1270,1271],{"color":624,"icon":258,"title":255,"to":256},"Module for both Nitro v2 and v3 with plugin-based drain and enrichment hooks.",[1238,1273,1274,1275,1277],{"color":624,"icon":263,"title":260,"to":261},"Uses Nitro v3 module with async context, so ",[609,1276,709],{}," works inside server functions. Also covers TanStack Router (full-stack mode).",[1238,1279,1280,1281,616,1283,1285],{"color":624,"icon":293,"title":290,"to":291},"Middleware with ",[609,1282,810],{},[609,1284,709],{}," for loaders and services.",[1238,1287,1288,1290],{"color":624,"icon":268,"title":265,"to":266},[609,1289,1105],{}," with global middleware, exception filter, and async config.",[636,1292,1294],{"id":1293},"server-frameworks","Server frameworks",[1235,1296,1297,1302,1311,1317,1325,1334,1337,1347,1350],{},[1238,1298,1280,1299,1301],{"color":624,"icon":273,"title":270,"to":271},[609,1300,851],{}," and 4-argument error handler.",[1238,1303,1304,1305,1307,1308,1229],{"color":624,"icon":278,"title":275,"to":276},"Middleware with typed ",[609,1306,873],{}," via ",[609,1309,1310],{},"EvlogVariables",[1238,1312,1313,1314,1316],{"color":624,"icon":283,"title":280,"to":281},"Plugin with ",[609,1315,896],{}," that shadows Fastify's built-in pino logger.",[1238,1318,1313,1319,1321,1322,1229],{"color":624,"icon":288,"title":285,"to":286},[609,1320,918],{}," in route context via Elysia's ",[609,1323,1324],{},"derive",[1238,1326,1327,1328,1330,1331,1229],{"color":624,"icon":312,"title":309,"to":310},"Handler wrapper + procedure middleware exposing ",[609,1329,942],{}," and per-procedure ",[609,1332,1333],{},"operation",[1238,1335,1336],{"color":624,"icon":298,"title":295,"to":296},"Factory for creating request-scoped loggers with Cloudflare-specific context.",[1238,1338,1339,1342,1343,1346],{"color":624,"icon":317,"title":314,"to":315},[609,1340,1341],{},"initLogger"," once per runtime; ",[609,1344,1345],{},"createLogger"," per invocation (SQS, events, HTTP API).",[1238,1348,1349],{"color":624,"icon":79,"title":300,"to":301},"For scripts, CLI tools, queues, and any TypeScript process.",[1238,1351,1353],{"color":624,"icon":493,"title":1352,"to":491},"Custom Integration","Build your own middleware with the evlog toolkit API.",[622,1355,1356,1357,612,1360,612,1363,612,1366,612,1369,1250,1372,1229],{"color":1215,"icon":13},"All frameworks support the same features: ",[628,1358,1359],{"href":52},"wide events",[628,1361,1362],{"href":57},"structured errors",[628,1364,1365],{"href":153},"drain adapters",[628,1367,1368],{"href":441},"enrichers",[628,1370,1371],{"href":67},"sampling",[628,1373,1374],{"href":338},"AI SDK integration",[636,1376,1378],{"id":1377},"strip-client-logs-at-build-time","Strip client logs at build time",[605,1380,1381,1382,1388],{},"For any Vite-based project, the ",[628,1383,1384,1387],{"href":552},[609,1385,1386],{},"evlog\u002Fvite"," plugin"," adds build-time optimizations:",[1390,1391,1392,1404,1414],"ul",{},[1393,1394,1395,1399,1400,1403],"li",{},[1396,1397,1398],"strong",{},"Auto-initialization",": no ",[609,1401,1402],{},"initLogger()"," call needed",[1393,1405,1406,1409,1410,1413],{},[1396,1407,1408],{},"Debug stripping",": ",[609,1411,1412],{},"log.debug()"," removed from production builds",[1393,1415,1416,1419,1420,1423],{},[1396,1417,1418],{},"Source location",": inject ",[609,1421,1422],{},"__source: 'file:line'"," into log calls",[605,1425,1426,1427,1429],{},"It works with SvelteKit, Hono through vite-node, and any Vite-powered setup. Under Nuxt the same three options live on the ",[609,1428,679],{}," module, so the plugin does not need to be added by hand.",{"title":1431,"searchDepth":1432,"depth":1432,"links":1433},"",2,[1434,1435,1440,1441,1442],{"id":638,"depth":1432,"text":639},{"id":1055,"depth":1432,"text":1056,"children":1436},[1437,1439],{"id":1063,"depth":1438,"text":1064},3,{"id":1130,"depth":1438,"text":1131},{"id":1232,"depth":1432,"text":1233},{"id":1293,"depth":1432,"text":1294},{"id":1377,"depth":1432,"text":1378},"Choose an evlog integration for Nuxt, Next.js, SvelteKit, Hono, Express, or another listed framework. Follow its setup and request-logger access guide.","md",null,{},{"title":41,"icon":238},{"title":600,"description":1443},"u9gEqE6gIuTwJqCo_teiuJIFPe5cGGK1QLqVgZYaJ-A",[1451,1453],{"title":226,"path":227,"stem":228,"description":1452,"icon":229,"children":-1},"Store wide events in an in-memory ring buffer. Works in any runtime — including Cloudflare Workers (workerd) — where the file system is unavailable.",{"title":240,"path":241,"stem":242,"description":1454,"icon":243,"children":-1},"Add the Nuxt module and every server route emits one wide event. `useLogger(event)` and `parseError` are auto-imported, `createError` comes from `evlog`.",1789076899655]