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OpenTelemetry","\u002Fcompare\u002Fopentelemetry","8.compare\u002F2.opentelemetry",{"title":596,"path":597,"stem":598,"icon":572},"evlog vs LogTape","\u002Fcompare\u002Flogtape","8.compare\u002F3.logtape",{"title":600,"path":601,"stem":602,"icon":572},"evlog vs Winston: formats and request events","\u002Fcompare\u002Fwinston","8.compare\u002F4.winston",{"title":604,"path":605,"stem":606,"icon":572},"evlog vs Consola: reporters and request context","\u002Fcompare\u002Fconsola","8.compare\u002F5.consola",{"id":608,"title":609,"body":610,"description":1452,"extension":1453,"links":1454,"meta":1455,"navigation":1456,"path":241,"seo":1457,"stem":242,"__hash__":1458},"docs\u002F4.integrate\u002Fframeworks\u002F00.overview.md","Framework Integrations",{"type":611,"value":612,"toc":1439},"minimark",[613,630,644,649,1062,1066,1069,1074,1137,1141,1222,1239,1243,1300,1304,1363,1384,1388,1398,1433],[614,615,616,617,621,622,625,626,629],"p",{},"Choose your framework from the table below. ",[618,619,620],"code",{},"log.set()",", ",[618,623,624],{},"createError()"," and ",[618,627,628],{},"parseError()"," use the same core APIs, while initialization and request-logger access depend on the integration. Some stacks have a module or middleware, others need the manual setup shown in their guide.",[631,632,635,636,640,641,643],"callout",{"color":633,"icon":634},"neutral","i-lucide-globe","No HTTP framework? Use ",[637,638,639],"a",{"href":306},"Standalone TypeScript"," for scripts, libraries, and workers, and ",[637,642,300],{"href":301}," on the edge.",[645,646,648],"h2",{"id":647},"pick-your-framework","Pick your framework",[650,651,652,674],"table",{},[653,654,655],"thead",{},[656,657,658,662,665,668,671],"tr",{},[659,660,661],"th",{},"Framework",[659,663,664],{},"Import",[659,666,667],{},"Type",[659,669,670],{},"Logger Access",[659,672,673],{},"Status",[675,676,677,700,721,745,764,784,802,824,843,865,887,910,933,956,976,1001,1021,1039],"tbody",{},[656,678,679,684,689,692,697],{},[680,681,682],"td",{},[637,683,245],{"href":246},[680,685,686],{},[618,687,688],{},"evlog\u002Fnuxt",[680,690,691],{},"Module",[680,693,694],{},[618,695,696],{},"useLogger(event)",[680,698,699],{},"Stable",[656,701,702,706,711,714,719],{},[680,703,704],{},[637,705,250],{"href":251},[680,707,708],{},[618,709,710],{},"evlog\u002Fnext",[680,712,713],{},"Factory",[680,715,716],{},[618,717,718],{},"useLogger()",[680,720,699],{},[656,722,723,727,732,735,743],{},[680,724,725],{},[637,726,255],{"href":256},[680,728,729],{},[618,730,731],{},"evlog\u002Fsveltekit",[680,733,734],{},"Hooks",[680,736,737,740,741],{},[618,738,739],{},"event.locals.log"," \u002F ",[618,742,718],{},[680,744,699],{},[656,746,747,751,756,758,762],{},[680,748,749],{},[637,750,260],{"href":261},[680,752,753],{},[618,754,755],{},"evlog\u002Fnitro",[680,757,691],{},[680,759,760],{},[618,761,696],{},[680,763,699],{},[656,765,766,770,775,777,782],{},[680,767,768],{},[637,769,265],{"href":266},[680,771,772],{},[618,773,774],{},"evlog\u002Fnitro\u002Fv3",[680,776,691],{},[680,778,779],{},[618,780,781],{},"useRequest().context.log",[680,783,699],{},[656,785,786,791,795,797,800],{},[680,787,788],{},[637,789,790],{"href":266},"TanStack Router",[680,792,793],{},[618,794,774],{},[680,796,691],{},[680,798,799],{},"Via TanStack Start (uses Nitro v3)",[680,801,699],{},[656,803,804,808,813,815,822],{},[680,805,806],{},[637,807,295],{"href":296},[680,809,810],{},[618,811,812],{},"evlog\u002Freact-router",[680,814,379],{},[680,816,817,740,820],{},[618,818,819],{},"context.get(loggerContext)",[618,821,718],{},[680,823,699],{},[656,825,826,830,835,837,841],{},[680,827,828],{},[637,829,270],{"href":271},[680,831,832],{},[618,833,834],{},"evlog\u002Fnestjs",[680,836,691],{},[680,838,839],{},[618,840,718],{},[680,842,699],{},[656,844,845,849,854,856,863],{},[680,846,847],{},[637,848,275],{"href":276},[680,850,851],{},[618,852,853],{},"evlog\u002Fexpress",[680,855,379],{},[680,857,858,740,861],{},[618,859,860],{},"req.log",[618,862,718],{},[680,864,699],{},[656,866,867,871,876,878,885],{},[680,868,869],{},[637,870,280],{"href":281},[680,872,873],{},[618,874,875],{},"evlog\u002Fhono",[680,877,379],{},[680,879,880,740,883],{},[618,881,882],{},"c.get('log')",[618,884,718],{},[680,886,699],{},[656,888,889,893,898,901,908],{},[680,890,891],{},[637,892,285],{"href":286},[680,894,895],{},[618,896,897],{},"evlog\u002Ffastify",[680,899,900],{},"Plugin",[680,902,903,740,906],{},[618,904,905],{},"request.log",[618,907,718],{},[680,909,699],{},[656,911,912,916,921,923,931],{},[680,913,914],{},[637,915,290],{"href":291},[680,917,918],{},[618,919,920],{},"evlog\u002Felysia",[680,922,900],{},[680,924,925,928,929],{},[618,926,927],{},"log"," (context) \u002F ",[618,930,718],{},[680,932,699],{},[656,934,935,939,944,947,954],{},[680,936,937],{},[637,938,314],{"href":315},[680,940,941],{},[618,942,943],{},"evlog\u002Forpc",[680,945,946],{},"Handler wrapper + middleware",[680,948,949,740,952],{},[618,950,951],{},"context.log",[618,953,718],{},[680,955,699],{},[656,957,958,962,967,969,974],{},[680,959,960],{},[637,961,300],{"href":301},[680,963,964],{},[618,965,966],{},"evlog\u002Fworkers",[680,968,713],{},[680,970,971],{},[618,972,973],{},"createWorkersLogger()",[680,975,699],{},[656,977,978,982,987,990,998],{},[680,979,980],{},[637,981,319],{"href":320},[680,983,984],{},[618,985,986],{},"evlog",[680,988,989],{},"Manual",[680,991,992,740,995],{},[618,993,994],{},"createLogger()",[618,996,997],{},"createRequestLogger()",[680,999,1000],{},"Guide",[656,1002,1003,1007,1011,1013,1019],{},[680,1004,1005],{},[637,1006,305],{"href":306},[680,1008,1009],{},[618,1010,986],{},[680,1012,989],{},[680,1014,1015,740,1017],{},[618,1016,994],{},[618,1018,997],{},[680,1020,699],{},[656,1022,1023,1027,1031,1033,1037],{},[680,1024,1025],{},[637,1026,309],{"href":310},[680,1028,1029],{},[618,1030,986],{},[680,1032,989],{},[680,1034,1035],{},[618,1036,997],{},[680,1038,1000],{},[656,1040,1041,1046,1051,1054,1059],{},[680,1042,1043],{},[637,1044,1045],{"href":500},"Custom",[680,1047,1048],{},[618,1049,1050],{},"evlog\u002Ftoolkit",[680,1052,1053],{},"Build your own",[680,1055,1056],{},[618,1057,1058],{},"createMiddlewareLogger()",[680,1060,1061],{},"Beta",[645,1063,1065],{"id":1064},"what-differs-from-one-framework-to-the-next","What differs from one framework to the next",[614,1067,1068],{},"Two things differ per framework: how you start evlog, and how a handler reaches the request logger.",[1070,1071,1073],"h3",{"id":1072},"start-evlog","Start evlog",[650,1075,1076,1085],{},[653,1077,1078],{},[656,1079,1080,1083],{},[659,1081,1082],{},"Pattern",[659,1084,236],{},[675,1086,1087,1098,1108,1117,1125],{},[656,1088,1089,1095],{},[680,1090,1091,1094],{},[618,1092,1093],{},"evlog(options)"," middleware \u002F plugin",[680,1096,1097],{},"Hono, Express, Fastify, Elysia, SvelteKit, React Router",[656,1099,1100,1106],{},[680,1101,1102,1105],{},[618,1103,1104],{},"createEvlog(options)"," factory",[680,1107,250],{},[656,1109,1110,1115],{},[680,1111,1112],{},[618,1113,1114],{},"EvlogModule.forRoot()",[680,1116,270],{},[656,1118,1119,1122],{},[680,1120,1121],{},"Module default export",[680,1123,1124],{},"Nuxt, Nitro v2\u002Fv3",[656,1126,1127,1130],{},[680,1128,1129],{},"Manual factory",[680,1131,1132,1133,1136],{},"Cloudflare Workers (",[618,1134,1135],{},"createWorkersLogger","), Standalone, AWS Lambda, Astro",[1070,1138,1140],{"id":1139},"reach-the-logger-from-a-handler","Reach the logger from a handler",[650,1142,1143,1151],{},[653,1144,1145],{},[656,1146,1147,1149],{},[659,1148,1082],{},[659,1150,236],{},[675,1152,1153,1162,1171,1179,1187,1195,1203,1211],{},[656,1154,1155,1159],{},[680,1156,1157],{},[618,1158,696],{},[680,1160,1161],{},"Nuxt, Nitro",[656,1163,1164,1168],{},[680,1165,1166],{},[618,1167,718],{},[680,1169,1170],{},"Next.js, NestJS, Express, Fastify, Elysia, SvelteKit, React Router, Hono",[656,1172,1173,1177],{},[680,1174,1175],{},[618,1176,882],{},[680,1178,280],{},[656,1180,1181,1185],{},[680,1182,1183],{},[618,1184,860],{},[680,1186,275],{},[656,1188,1189,1193],{},[680,1190,1191],{},[618,1192,905],{},[680,1194,285],{},[656,1196,1197,1201],{},[680,1198,1199],{},[618,1200,739],{},[680,1202,255],{},[656,1204,1205,1209],{},[680,1206,1207],{},[618,1208,819],{},[680,1210,295],{},[656,1212,1213,1219],{},[680,1214,1215,740,1217],{},[618,1216,997],{},[618,1218,994],{},[680,1220,1221],{},"Standalone, Workers, manual setups",[631,1223,1225,1226,1228,1229,1231,1232,1234,1235,1238],{"color":1224,"icon":13},"info","On Hono, use ",[618,1227,882],{}," inside handlers and ",[618,1230,718],{}," from ",[618,1233,875],{}," in the layers underneath. See ",[637,1236,1237],{"href":281},"Hono integration",".",[645,1240,1242],{"id":1241},"full-stack-frameworks","Full-stack frameworks",[1244,1245,1246,1263,1273,1278,1281,1287,1295],"card-group",{},[1247,1248,1249,1250,1252,1253,621,1256,1259,1260,1238],"card",{"color":633,"icon":248,"title":245,"to":246},"Register ",[618,1251,688],{}," in your modules to get auto-imported ",[618,1254,1255],{},"useLogger",[618,1257,1258],{},"createError",", and ",[618,1261,1262],{},"parseError",[1247,1264,1265,1268,1269,1272],{"color":633,"icon":253,"title":250,"to":251},[618,1266,1267],{},"createEvlog()"," factory with ",[618,1270,1271],{},"withEvlog()"," handler wrapper and client provider.",[1247,1274,1275,1276,1238],{"color":633,"icon":258,"title":255,"to":256},"Handle and handleError hooks with request-scoped logger on ",[618,1277,739],{},[1247,1279,1280],{"color":633,"icon":263,"title":260,"to":261},"Module for both Nitro v2 and v3 with plugin-based drain and enrichment hooks.",[1247,1282,1283,1284,1286],{"color":633,"icon":268,"title":265,"to":266},"Uses Nitro v3 module with async context, so ",[618,1285,718],{}," works inside server functions. Also covers TanStack Router (full-stack mode).",[1247,1288,1289,1290,625,1292,1294],{"color":633,"icon":298,"title":295,"to":296},"Middleware with ",[618,1291,819],{},[618,1293,718],{}," for loaders and services.",[1247,1296,1297,1299],{"color":633,"icon":273,"title":270,"to":271},[618,1298,1114],{}," with global middleware, exception filter, and async config.",[645,1301,1303],{"id":1302},"server-frameworks","Server frameworks",[1244,1305,1306,1311,1320,1326,1334,1343,1346,1356,1359],{},[1247,1307,1289,1308,1310],{"color":633,"icon":278,"title":275,"to":276},[618,1309,860],{}," and 4-argument error handler.",[1247,1312,1313,1314,1316,1317,1238],{"color":633,"icon":283,"title":280,"to":281},"Middleware with typed ",[618,1315,882],{}," via ",[618,1318,1319],{},"EvlogVariables",[1247,1321,1322,1323,1325],{"color":633,"icon":288,"title":285,"to":286},"Plugin with ",[618,1324,905],{}," that shadows Fastify's built-in pino logger.",[1247,1327,1322,1328,1330,1331,1238],{"color":633,"icon":293,"title":290,"to":291},[618,1329,927],{}," in route context via Elysia's ",[618,1332,1333],{},"derive",[1247,1335,1336,1337,1339,1340,1238],{"color":633,"icon":317,"title":314,"to":315},"Handler wrapper + procedure middleware exposing ",[618,1338,951],{}," and per-procedure ",[618,1341,1342],{},"operation",[1247,1344,1345],{"color":633,"icon":303,"title":300,"to":301},"Factory for creating request-scoped loggers with Cloudflare-specific context.",[1247,1347,1348,1351,1352,1355],{"color":633,"icon":322,"title":319,"to":320},[618,1349,1350],{},"initLogger"," once per runtime; ",[618,1353,1354],{},"createLogger"," per invocation (SQS, events, HTTP API).",[1247,1357,1358],{"color":633,"icon":79,"title":305,"to":306},"For scripts, CLI tools, queues, and any TypeScript process.",[1247,1360,1362],{"color":633,"icon":502,"title":1361,"to":500},"Custom Integration","Build your own middleware with the evlog toolkit API.",[631,1364,1365,1366,621,1369,621,1372,621,1375,621,1378,1259,1381,1238],{"color":1224,"icon":13},"All frameworks support the same features: ",[637,1367,1368],{"href":52},"wide events",[637,1370,1371],{"href":57},"structured errors",[637,1373,1374],{"href":158},"drain adapters",[637,1376,1377],{"href":446},"enrichers",[637,1379,1380],{"href":67},"sampling",[637,1382,1383],{"href":343},"AI SDK integration",[645,1385,1387],{"id":1386},"strip-client-logs-at-build-time","Strip client logs at build time",[614,1389,1390,1391,1397],{},"For any Vite-based project, the ",[637,1392,1393,1396],{"href":561},[618,1394,1395],{},"evlog\u002Fvite"," plugin"," adds build-time optimizations:",[1399,1400,1401,1413,1423],"ul",{},[1402,1403,1404,1408,1409,1412],"li",{},[1405,1406,1407],"strong",{},"Auto-initialization",": no ",[618,1410,1411],{},"initLogger()"," call needed",[1402,1414,1415,1418,1419,1422],{},[1405,1416,1417],{},"Debug stripping",": ",[618,1420,1421],{},"log.debug()"," removed from production builds",[1402,1424,1425,1428,1429,1432],{},[1405,1426,1427],{},"Source location",": inject ",[618,1430,1431],{},"__source: 'file:line'"," into log calls",[614,1434,1435,1436,1438],{},"It works with SvelteKit, Hono through vite-node, and any Vite-powered setup. Under Nuxt the same three options live on the ",[618,1437,688],{}," module, so the plugin does not need to be added by hand.",{"title":1440,"searchDepth":1441,"depth":1441,"links":1442},"",2,[1443,1444,1449,1450,1451],{"id":647,"depth":1441,"text":648},{"id":1064,"depth":1441,"text":1065,"children":1445},[1446,1448],{"id":1072,"depth":1447,"text":1073},3,{"id":1139,"depth":1447,"text":1140},{"id":1241,"depth":1441,"text":1242},{"id":1302,"depth":1441,"text":1303},{"id":1386,"depth":1441,"text":1387},"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":243},{"title":609,"description":1452},"u9gEqE6gIuTwJqCo_teiuJIFPe5cGGK1QLqVgZYaJ-A",[1460,1462],{"title":231,"path":232,"stem":233,"description":1461,"icon":234,"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":245,"path":246,"stem":247,"description":1463,"icon":248,"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`.",1791444523064]