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Just wire the drain to your framework:",[660,661,662,776,907,924,986,1040,1099,1153,1206],"code-group",{},[611,663,666],{"className":613,"code":664,"filename":665,"language":616,"meta":617,"style":617},"\u002F\u002F server\u002Fplugins\u002Fevlog-drain.ts\nimport { createFsDrain } from 'evlog\u002Ffs'\n\nexport default defineNitroPlugin((nitroApp) => {\n  nitroApp.hooks.hook('evlog:drain', createFsDrain())\n})\n","Nuxt \u002F Nitro",[537,667,668,674,693,700,731,767],{"__ignoreMap":617},[621,669,670],{"class":623,"line":624},[621,671,673],{"class":672},"sHwdD","\u002F\u002F server\u002Fplugins\u002Fevlog-drain.ts\n",[621,675,677,679,681,683,685,687,689,691],{"class":623,"line":676},2,[621,678,628],{"class":627},[621,680,632],{"class":631},[621,682,636],{"class":635},[621,684,639],{"class":631},[621,686,642],{"class":627},[621,688,645],{"class":631},[621,690,649],{"class":648},[621,692,652],{"class":631},[621,694,696],{"class":623,"line":695},3,[621,697,699],{"emptyLinePlaceholder":698},true,"\n",[621,701,703,706,709,713,716,718,722,724,728],{"class":623,"line":702},4,[621,704,705],{"class":627},"export",[621,707,708],{"class":627}," default",[621,710,712],{"class":711},"s2Zo4"," defineNitroPlugin",[621,714,715],{"class":635},"(",[621,717,715],{"class":631},[621,719,721],{"class":720},"sHdIc","nitroApp",[621,723,550],{"class":631},[621,725,727],{"class":726},"spNyl"," =>",[621,729,730],{"class":631}," {\n",[621,732,734,737,740,743,745,748,751,754,757,759,762,764],{"class":623,"line":733},5,[621,735,736],{"class":635},"  nitroApp",[621,738,739],{"class":631},".",[621,741,742],{"class":635},"hooks",[621,744,739],{"class":631},[621,746,747],{"class":711},"hook",[621,749,715],{"class":750},"swJcz",[621,752,753],{"class":631},"'",[621,755,756],{"class":648},"evlog:drain",[621,758,753],{"class":631},[621,760,761],{"class":631},",",[621,763,636],{"class":711},[621,765,766],{"class":750},"())\n",[621,768,770,773],{"class":623,"line":769},6,[621,771,772],{"class":631},"}",[621,774,775],{"class":635},")\n",[611,777,779],{"className":613,"code":778,"filename":225,"language":616,"meta":617,"style":617},"\u002F\u002F lib\u002Fevlog.ts — Node.js routes only; keep evlog\u002Ffs out of root instrumentation.ts\nimport { createEvlog } from 'evlog\u002Fnext'\nimport { createFsDrain } from 'evlog\u002Ffs'\n\nexport const { withEvlog, useLogger, log, createError } = createEvlog({\n  service: 'my-app',\n  drain: createFsDrain(),\n})\n",[537,780,781,786,806,824,828,867,885,900],{"__ignoreMap":617},[621,782,783],{"class":623,"line":624},[621,784,785],{"class":672},"\u002F\u002F lib\u002Fevlog.ts — Node.js routes only; keep evlog\u002Ffs out of root instrumentation.ts\n",[621,787,788,790,792,795,797,799,801,804],{"class":623,"line":676},[621,789,628],{"class":627},[621,791,632],{"class":631},[621,793,794],{"class":635}," createEvlog",[621,796,639],{"class":631},[621,798,642],{"class":627},[621,800,645],{"class":631},[621,802,803],{"class":648},"evlog\u002Fnext",[621,805,652],{"class":631},[621,807,808,810,812,814,816,818,820,822],{"class":623,"line":695},[621,809,628],{"class":627},[621,811,632],{"class":631},[621,813,636],{"class":635},[621,815,639],{"class":631},[621,817,642],{"class":627},[621,819,645],{"class":631},[621,821,649],{"class":648},[621,823,652],{"class":631},[621,825,826],{"class":623,"line":702},[621,827,699],{"emptyLinePlaceholder":698},[621,829,830,832,835,837,840,842,845,847,850,852,855,857,860,862,864],{"class":623,"line":733},[621,831,705],{"class":627},[621,833,834],{"class":726}," const",[621,836,632],{"class":631},[621,838,839],{"class":635}," withEvlog",[621,841,761],{"class":631},[621,843,844],{"class":635}," useLogger",[621,846,761],{"class":631},[621,848,849],{"class":635}," log",[621,851,761],{"class":631},[621,853,854],{"class":635}," createError ",[621,856,772],{"class":631},[621,858,859],{"class":631}," =",[621,861,794],{"class":711},[621,863,715],{"class":635},[621,865,866],{"class":631},"{\n",[621,868,869,872,875,877,880,882],{"class":623,"line":769},[621,870,871],{"class":750},"  service",[621,873,874],{"class":631},":",[621,876,645],{"class":631},[621,878,879],{"class":648},"my-app",[621,881,753],{"class":631},[621,883,884],{"class":631},",\n",[621,886,888,891,893,895,898],{"class":623,"line":887},7,[621,889,890],{"class":750},"  drain",[621,892,874],{"class":631},[621,894,636],{"class":711},[621,896,897],{"class":635},"()",[621,899,884],{"class":631},[621,901,903,905],{"class":623,"line":902},8,[621,904,772],{"class":631},[621,906,775],{"class":635},[908,909,911,912,915,916,919,920,923],"callout",{"color":910,"icon":13},"info","The FS adapter requires Node.js (",[537,913,914],{},"node:fs","). On the Edge runtime it logs a one-time ",[537,917,918],{},"[evlog\u002Ffs]"," warning and skips writes. Use ",[537,921,922],{},"evlog\u002Fmemory"," or an HTTP adapter for Edge routes.",[611,925,927],{"className":613,"code":926,"filename":255,"language":616,"meta":617,"style":617},"import { createFsDrain } from 'evlog\u002Ffs'\n\napp.use(evlog({ drain: createFsDrain() }))\n",[537,928,929,947,951],{"__ignoreMap":617},[621,930,931,933,935,937,939,941,943,945],{"class":623,"line":624},[621,932,628],{"class":627},[621,934,632],{"class":631},[621,936,636],{"class":635},[621,938,639],{"class":631},[621,940,642],{"class":627},[621,942,645],{"class":631},[621,944,649],{"class":648},[621,946,652],{"class":631},[621,948,949],{"class":623,"line":676},[621,950,699],{"emptyLinePlaceholder":698},[621,952,953,956,958,961,963,966,968,971,974,976,978,981,983],{"class":623,"line":695},[621,954,955],{"class":635},"app",[621,957,739],{"class":631},[621,959,960],{"class":711},"use",[621,962,715],{"class":635},[621,964,965],{"class":711},"evlog",[621,967,715],{"class":635},[621,969,970],{"class":631},"{",[621,972,973],{"class":750}," drain",[621,975,874],{"class":631},[621,977,636],{"class":711},[621,979,980],{"class":635},"() ",[621,982,772],{"class":631},[621,984,985],{"class":635},"))\n",[611,987,988],{"className":613,"code":926,"filename":250,"language":616,"meta":617,"style":617},[537,989,990,1008,1012],{"__ignoreMap":617},[621,991,992,994,996,998,1000,1002,1004,1006],{"class":623,"line":624},[621,993,628],{"class":627},[621,995,632],{"class":631},[621,997,636],{"class":635},[621,999,639],{"class":631},[621,1001,642],{"class":627},[621,1003,645],{"class":631},[621,1005,649],{"class":648},[621,1007,652],{"class":631},[621,1009,1010],{"class":623,"line":676},[621,1011,699],{"emptyLinePlaceholder":698},[621,1013,1014,1016,1018,1020,1022,1024,1026,1028,1030,1032,1034,1036,1038],{"class":623,"line":695},[621,1015,955],{"class":635},[621,1017,739],{"class":631},[621,1019,960],{"class":711},[621,1021,715],{"class":635},[621,1023,965],{"class":711},[621,1025,715],{"class":635},[621,1027,970],{"class":631},[621,1029,973],{"class":750},[621,1031,874],{"class":631},[621,1033,636],{"class":711},[621,1035,980],{"class":635},[621,1037,772],{"class":631},[621,1039,985],{"class":635},[611,1041,1043],{"className":613,"code":1042,"filename":260,"language":616,"meta":617,"style":617},"import { createFsDrain } from 'evlog\u002Ffs'\n\nawait app.register(evlog, { drain: createFsDrain() })\n",[537,1044,1045,1063,1067],{"__ignoreMap":617},[621,1046,1047,1049,1051,1053,1055,1057,1059,1061],{"class":623,"line":624},[621,1048,628],{"class":627},[621,1050,632],{"class":631},[621,1052,636],{"class":635},[621,1054,639],{"class":631},[621,1056,642],{"class":627},[621,1058,645],{"class":631},[621,1060,649],{"class":648},[621,1062,652],{"class":631},[621,1064,1065],{"class":623,"line":676},[621,1066,699],{"emptyLinePlaceholder":698},[621,1068,1069,1072,1075,1077,1080,1083,1085,1087,1089,1091,1093,1095,1097],{"class":623,"line":695},[621,1070,1071],{"class":627},"await",[621,1073,1074],{"class":635}," app",[621,1076,739],{"class":631},[621,1078,1079],{"class":711},"register",[621,1081,1082],{"class":635},"(evlog",[621,1084,761],{"class":631},[621,1086,632],{"class":631},[621,1088,973],{"class":750},[621,1090,874],{"class":631},[621,1092,636],{"class":711},[621,1094,980],{"class":635},[621,1096,772],{"class":631},[621,1098,775],{"class":635},[611,1100,1101],{"className":613,"code":926,"filename":265,"language":616,"meta":617,"style":617},[537,1102,1103,1121,1125],{"__ignoreMap":617},[621,1104,1105,1107,1109,1111,1113,1115,1117,1119],{"class":623,"line":624},[621,1106,628],{"class":627},[621,1108,632],{"class":631},[621,1110,636],{"class":635},[621,1112,639],{"class":631},[621,1114,642],{"class":627},[621,1116,645],{"class":631},[621,1118,649],{"class":648},[621,1120,652],{"class":631},[621,1122,1123],{"class":623,"line":676},[621,1124,699],{"emptyLinePlaceholder":698},[621,1126,1127,1129,1131,1133,1135,1137,1139,1141,1143,1145,1147,1149,1151],{"class":623,"line":695},[621,1128,955],{"class":635},[621,1130,739],{"class":631},[621,1132,960],{"class":711},[621,1134,715],{"class":635},[621,1136,965],{"class":711},[621,1138,715],{"class":635},[621,1140,970],{"class":631},[621,1142,973],{"class":750},[621,1144,874],{"class":631},[621,1146,636],{"class":711},[621,1148,980],{"class":635},[621,1150,772],{"class":631},[621,1152,985],{"class":635},[611,1154,1156],{"className":613,"code":1155,"filename":245,"language":616,"meta":617,"style":617},"import { createFsDrain } from 'evlog\u002Ffs'\n\nEvlogModule.forRoot({ drain: createFsDrain() })\n",[537,1157,1158,1176,1180],{"__ignoreMap":617},[621,1159,1160,1162,1164,1166,1168,1170,1172,1174],{"class":623,"line":624},[621,1161,628],{"class":627},[621,1163,632],{"class":631},[621,1165,636],{"class":635},[621,1167,639],{"class":631},[621,1169,642],{"class":627},[621,1171,645],{"class":631},[621,1173,649],{"class":648},[621,1175,652],{"class":631},[621,1177,1178],{"class":623,"line":676},[621,1179,699],{"emptyLinePlaceholder":698},[621,1181,1182,1185,1187,1190,1192,1194,1196,1198,1200,1202,1204],{"class":623,"line":695},[621,1183,1184],{"class":635},"EvlogModule",[621,1186,739],{"class":631},[621,1188,1189],{"class":711},"forRoot",[621,1191,715],{"class":635},[621,1193,970],{"class":631},[621,1195,973],{"class":750},[621,1197,874],{"class":631},[621,1199,636],{"class":711},[621,1201,980],{"class":635},[621,1203,772],{"class":631},[621,1205,775],{"class":635},[611,1207,1209],{"className":613,"code":1208,"filename":280,"language":616,"meta":617,"style":617},"import { createFsDrain } from 'evlog\u002Ffs'\n\ninitLogger({ drain: createFsDrain() })\n",[537,1210,1211,1229,1233],{"__ignoreMap":617},[621,1212,1213,1215,1217,1219,1221,1223,1225,1227],{"class":623,"line":624},[621,1214,628],{"class":627},[621,1216,632],{"class":631},[621,1218,636],{"class":635},[621,1220,639],{"class":631},[621,1222,642],{"class":627},[621,1224,645],{"class":631},[621,1226,649],{"class":648},[621,1228,652],{"class":631},[621,1230,1231],{"class":623,"line":676},[621,1232,699],{"emptyLinePlaceholder":698},[621,1234,1235,1238,1240,1242,1244,1246,1248,1250,1252],{"class":623,"line":695},[621,1236,1237],{"class":711},"initLogger",[621,1239,715],{"class":635},[621,1241,970],{"class":631},[621,1243,973],{"class":750},[621,1245,874],{"class":631},[621,1247,636],{"class":711},[621,1249,980],{"class":635},[621,1251,772],{"class":631},[621,1253,775],{"class":635},[522,1255,1256,1257,1259],{},"Logs start appearing in ",[537,1258,539],{}," immediately.",[604,1261,1263],{"id":1262},"file-structure","File Structure",[611,1265,1271],{"className":1266,"code":1268,"filename":1269,"language":1270,"meta":617},[1267],"language-text",".evlog\u002F\n  logs\u002F\n    2026-03-14.jsonl    ← one file per day\n    2026-03-13.jsonl\n    2026-03-12.jsonl\n",".evlog\u002Flogs directory layout","text",[537,1272,1268],{"__ignoreMap":617},[522,1274,1275,1276,1279],{},"Each ",[537,1277,1278],{},".jsonl"," file contains one JSON object per line (NDJSON format), making it easy to parse, grep, and stream.",[908,1281,1284,1285,1288,1289,1292,1293,1296],{"color":1282,"icon":1283},"success","i-lucide-git-branch","A ",[537,1286,1287],{},".gitignore"," is automatically created on first write, inside the ",[537,1290,1291],{},".evlog\u002F"," ancestor directory when present or in the configured ",[537,1294,1295],{},"dir"," otherwise. Log files are never committed to version control.",[604,1298,490],{"id":1299},"configuration",[1301,1302,326],"h3",{"id":1303},"options",[1305,1306,1307,1326],"table",{},[1308,1309,1310],"thead",{},[1311,1312,1313,1317,1320,1323],"tr",{},[1314,1315,1316],"th",{},"Option",[1314,1318,1319],{},"Type",[1314,1321,1322],{},"Default",[1314,1324,1325],{},"Description",[1327,1328,1329,1349,1369,1387],"tbody",{},[1311,1330,1331,1336,1341,1346],{},[1332,1333,1334],"td",{},[537,1335,1295],{},[1332,1337,1338],{},[537,1339,1340],{},"string",[1332,1342,1343],{},[537,1344,1345],{},"'.evlog\u002Flogs'",[1332,1347,1348],{},"Directory for log files",[1311,1350,1351,1356,1361,1366],{},[1332,1352,1353],{},[537,1354,1355],{},"maxFiles",[1332,1357,1358],{},[537,1359,1360],{},"number",[1332,1362,1363],{},[537,1364,1365],{},"undefined",[1332,1367,1368],{},"Max files to keep (auto-deletes oldest)",[1311,1370,1371,1376,1380,1384],{},[1332,1372,1373],{},[537,1374,1375],{},"maxSizePerFile",[1332,1377,1378],{},[537,1379,1360],{},[1332,1381,1382],{},[537,1383,1365],{},[1332,1385,1386],{},"Max bytes per file before rotating",[1311,1388,1389,1394,1399,1404],{},[1332,1390,1391],{},[537,1392,1393],{},"pretty",[1332,1395,1396],{},[537,1397,1398],{},"boolean",[1332,1400,1401],{},[537,1402,1403],{},"false",[1332,1405,1406],{},"Pretty-print JSON (multi-line, readable)",[1301,1408,1410],{"id":1409},"examples","Examples",[611,1412,1415],{"className":613,"code":1413,"filename":1414,"language":616,"meta":617,"style":617},"\u002F\u002F Keep only the last 7 days of logs\ncreateFsDrain({ maxFiles: 7 })\n\n\u002F\u002F Rotate files at 10MB, keep 30 files\ncreateFsDrain({\n  maxSizePerFile: 10 * 1024 * 1024,\n  maxFiles: 30,\n})\n\n\u002F\u002F Pretty-print for human reading\ncreateFsDrain({ pretty: true })\n\n\u002F\u002F Custom directory\ncreateFsDrain({ dir: '\u002Fvar\u002Flog\u002Fmyapp' })\n","server\u002Fplugins\u002Fevlog-drain.ts",[537,1416,1417,1422,1444,1448,1453,1461,1483,1495,1501,1506,1512,1534,1539,1545],{"__ignoreMap":617},[621,1418,1419],{"class":623,"line":624},[621,1420,1421],{"class":672},"\u002F\u002F Keep only the last 7 days of logs\n",[621,1423,1424,1427,1429,1431,1434,1436,1440,1442],{"class":623,"line":676},[621,1425,1426],{"class":711},"createFsDrain",[621,1428,715],{"class":635},[621,1430,970],{"class":631},[621,1432,1433],{"class":750}," maxFiles",[621,1435,874],{"class":631},[621,1437,1439],{"class":1438},"sbssI"," 7",[621,1441,639],{"class":631},[621,1443,775],{"class":635},[621,1445,1446],{"class":623,"line":695},[621,1447,699],{"emptyLinePlaceholder":698},[621,1449,1450],{"class":623,"line":702},[621,1451,1452],{"class":672},"\u002F\u002F Rotate files at 10MB, keep 30 files\n",[621,1454,1455,1457,1459],{"class":623,"line":733},[621,1456,1426],{"class":711},[621,1458,715],{"class":635},[621,1460,866],{"class":631},[621,1462,1463,1466,1468,1471,1474,1477,1479,1481],{"class":623,"line":769},[621,1464,1465],{"class":750},"  maxSizePerFile",[621,1467,874],{"class":631},[621,1469,1470],{"class":1438}," 10",[621,1472,1473],{"class":631}," *",[621,1475,1476],{"class":1438}," 1024",[621,1478,1473],{"class":631},[621,1480,1476],{"class":1438},[621,1482,884],{"class":631},[621,1484,1485,1488,1490,1493],{"class":623,"line":887},[621,1486,1487],{"class":750},"  maxFiles",[621,1489,874],{"class":631},[621,1491,1492],{"class":1438}," 30",[621,1494,884],{"class":631},[621,1496,1497,1499],{"class":623,"line":902},[621,1498,772],{"class":631},[621,1500,775],{"class":635},[621,1502,1504],{"class":623,"line":1503},9,[621,1505,699],{"emptyLinePlaceholder":698},[621,1507,1509],{"class":623,"line":1508},10,[621,1510,1511],{"class":672},"\u002F\u002F Pretty-print for human reading\n",[621,1513,1515,1517,1519,1521,1524,1526,1530,1532],{"class":623,"line":1514},11,[621,1516,1426],{"class":711},[621,1518,715],{"class":635},[621,1520,970],{"class":631},[621,1522,1523],{"class":750}," pretty",[621,1525,874],{"class":631},[621,1527,1529],{"class":1528},"sfNiH"," true",[621,1531,639],{"class":631},[621,1533,775],{"class":635},[621,1535,1537],{"class":623,"line":1536},12,[621,1538,699],{"emptyLinePlaceholder":698},[621,1540,1542],{"class":623,"line":1541},13,[621,1543,1544],{"class":672},"\u002F\u002F Custom directory\n",[621,1546,1548,1550,1552,1554,1557,1559,1561,1564,1566,1568],{"class":623,"line":1547},14,[621,1549,1426],{"class":711},[621,1551,715],{"class":635},[621,1553,970],{"class":631},[621,1555,1556],{"class":750}," dir",[621,1558,874],{"class":631},[621,1560,645],{"class":631},[621,1562,1563],{"class":648},"\u002Fvar\u002Flog\u002Fmyapp",[621,1565,753],{"class":631},[621,1567,639],{"class":631},[621,1569,775],{"class":635},[1301,1571,1573],{"id":1572},"file-rotation","File Rotation",[522,1575,1576,1577,1580,1581,1583],{},"By default, a new file is created each day (",[537,1578,1579],{},"2026-03-14.jsonl","). When ",[537,1582,1375],{}," is set, the adapter creates suffixed files when the current file exceeds the limit:",[611,1585,1589],{"className":1586,"code":1587,"filename":1588,"language":1270,"meta":617},[1267],".evlog\u002Flogs\u002F\n  2026-03-14.jsonl      ← base file (full)\n  2026-03-14.1.jsonl    ← first rotation\n  2026-03-14.2.jsonl    ← second rotation\n","Rotated log files",[537,1590,1587],{"__ignoreMap":617},[1301,1592,1594],{"id":1593},"cleanup","Cleanup",[522,1596,1597,1598,1600,1601,1603],{},"When ",[537,1599,1355],{}," is set, the adapter automatically deletes the oldest ",[537,1602,1278],{}," files after each write, keeping only the most recent files.",[604,1605,1607],{"id":1606},"combining-with-network-drains","Combining with Network Drains",[522,1609,1610],{},"Use the FS adapter alongside a network drain for local backup:",[611,1612,1614],{"className":613,"code":1613,"filename":1414,"language":616,"meta":617,"style":617},"import { createFsDrain } from 'evlog\u002Ffs'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\nconst fs = createFsDrain({ maxFiles: 7 })\nconst axiom = createAxiomDrain()\n\nconst drain = async (ctx) => {\n  await Promise.allSettled([fs(ctx), axiom(ctx)])\n}\n",[537,1615,1616,1634,1654,1658,1685,1699,1703,1727,1765],{"__ignoreMap":617},[621,1617,1618,1620,1622,1624,1626,1628,1630,1632],{"class":623,"line":624},[621,1619,628],{"class":627},[621,1621,632],{"class":631},[621,1623,636],{"class":635},[621,1625,639],{"class":631},[621,1627,642],{"class":627},[621,1629,645],{"class":631},[621,1631,649],{"class":648},[621,1633,652],{"class":631},[621,1635,1636,1638,1640,1643,1645,1647,1649,1652],{"class":623,"line":676},[621,1637,628],{"class":627},[621,1639,632],{"class":631},[621,1641,1642],{"class":635}," createAxiomDrain",[621,1644,639],{"class":631},[621,1646,642],{"class":627},[621,1648,645],{"class":631},[621,1650,1651],{"class":648},"evlog\u002Faxiom",[621,1653,652],{"class":631},[621,1655,1656],{"class":623,"line":695},[621,1657,699],{"emptyLinePlaceholder":698},[621,1659,1660,1663,1666,1669,1671,1673,1675,1677,1679,1681,1683],{"class":623,"line":702},[621,1661,1662],{"class":726},"const",[621,1664,1665],{"class":635}," fs ",[621,1667,1668],{"class":631},"=",[621,1670,636],{"class":711},[621,1672,715],{"class":635},[621,1674,970],{"class":631},[621,1676,1433],{"class":750},[621,1678,874],{"class":631},[621,1680,1439],{"class":1438},[621,1682,639],{"class":631},[621,1684,775],{"class":635},[621,1686,1687,1689,1692,1694,1696],{"class":623,"line":733},[621,1688,1662],{"class":726},[621,1690,1691],{"class":635}," axiom ",[621,1693,1668],{"class":631},[621,1695,1642],{"class":711},[621,1697,1698],{"class":635},"()\n",[621,1700,1701],{"class":623,"line":769},[621,1702,699],{"emptyLinePlaceholder":698},[621,1704,1705,1707,1710,1712,1715,1718,1721,1723,1725],{"class":623,"line":887},[621,1706,1662],{"class":726},[621,1708,1709],{"class":635}," drain ",[621,1711,1668],{"class":631},[621,1713,1714],{"class":726}," async",[621,1716,1717],{"class":631}," (",[621,1719,1720],{"class":720},"ctx",[621,1722,550],{"class":631},[621,1724,727],{"class":726},[621,1726,730],{"class":631},[621,1728,1729,1732,1736,1738,1741,1744,1747,1749,1751,1753,1755,1758,1760,1762],{"class":623,"line":902},[621,1730,1731],{"class":627},"  await",[621,1733,1735],{"class":1734},"sBMFI"," Promise",[621,1737,739],{"class":631},[621,1739,1740],{"class":711},"allSettled",[621,1742,1743],{"class":750},"([",[621,1745,1746],{"class":711},"fs",[621,1748,715],{"class":750},[621,1750,1720],{"class":635},[621,1752,550],{"class":750},[621,1754,761],{"class":631},[621,1756,1757],{"class":711}," axiom",[621,1759,715],{"class":750},[621,1761,1720],{"class":635},[621,1763,1764],{"class":750},")])\n",[621,1766,1767],{"class":623,"line":1503},[621,1768,1769],{"class":631},"}\n",[604,1771,1773],{"id":1772},"querying-logs","Querying Logs",[1301,1775,1777],{"id":1776},"stream-in-real-time","Stream in real-time",[611,1779,1784],{"className":1780,"code":1781,"filename":1782,"language":1783,"meta":617,"style":617},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","tail -f .evlog\u002Flogs\u002F2026-03-14.jsonl\n","Terminal","bash",[537,1785,1786],{"__ignoreMap":617},[621,1787,1788,1791,1794],{"class":623,"line":624},[621,1789,1790],{"class":1734},"tail",[621,1792,1793],{"class":648}," -f",[621,1795,1796],{"class":648}," .evlog\u002Flogs\u002F2026-03-14.jsonl\n",[1301,1798,1800],{"id":1799},"search-with-jq","Search with jq",[611,1802,1804],{"className":1780,"code":1803,"filename":1782,"language":1783,"meta":617,"style":617},"# Find errors\ncat .evlog\u002Flogs\u002F2026-03-14.jsonl | jq 'select(.level == \"error\")'\n\n# Slow requests (duration is a formatted string like \"706ms\" or \"1.23s\")\ncat .evlog\u002Flogs\u002F2026-03-14.jsonl | jq 'select(.duration | test(\"^[0-9.]+s\"))'\n\n# Requests by path\ncat .evlog\u002Flogs\u002F2026-03-14.jsonl | jq 'select(.path == \"\u002Fapi\u002Fcheckout\")'\n",[537,1805,1806,1811,1832,1836,1841,1858,1862,1867],{"__ignoreMap":617},[621,1807,1808],{"class":623,"line":624},[621,1809,1810],{"class":672},"# Find errors\n",[621,1812,1813,1816,1819,1822,1825,1827,1830],{"class":623,"line":676},[621,1814,1815],{"class":1734},"cat",[621,1817,1818],{"class":648}," .evlog\u002Flogs\u002F2026-03-14.jsonl",[621,1820,1821],{"class":631}," |",[621,1823,1824],{"class":1734}," jq",[621,1826,645],{"class":631},[621,1828,1829],{"class":648},"select(.level == \"error\")",[621,1831,652],{"class":631},[621,1833,1834],{"class":623,"line":695},[621,1835,699],{"emptyLinePlaceholder":698},[621,1837,1838],{"class":623,"line":702},[621,1839,1840],{"class":672},"# Slow requests (duration is a formatted string like \"706ms\" or \"1.23s\")\n",[621,1842,1843,1845,1847,1849,1851,1853,1856],{"class":623,"line":733},[621,1844,1815],{"class":1734},[621,1846,1818],{"class":648},[621,1848,1821],{"class":631},[621,1850,1824],{"class":1734},[621,1852,645],{"class":631},[621,1854,1855],{"class":648},"select(.duration | test(\"^[0-9.]+s\"))",[621,1857,652],{"class":631},[621,1859,1860],{"class":623,"line":769},[621,1861,699],{"emptyLinePlaceholder":698},[621,1863,1864],{"class":623,"line":887},[621,1865,1866],{"class":672},"# Requests by path\n",[621,1868,1869,1871,1873,1875,1877,1879,1882],{"class":623,"line":902},[621,1870,1815],{"class":1734},[621,1872,1818],{"class":648},[621,1874,1821],{"class":631},[621,1876,1824],{"class":1734},[621,1878,645],{"class":631},[621,1880,1881],{"class":648},"select(.path == \"\u002Fapi\u002Fcheckout\")",[621,1883,652],{"class":631},[1301,1885,1887],{"id":1886},"search-with-grep","Search with grep",[611,1889,1891],{"className":1780,"code":1890,"filename":1782,"language":1783,"meta":617,"style":617},"# Find all errors\ngrep '\"level\":\"error\"' .evlog\u002Flogs\u002F2026-03-14.jsonl\n\n# Find by request ID\ngrep 'req_abc123' .evlog\u002Flogs\u002F*.jsonl\n",[537,1892,1893,1898,1912,1916,1921],{"__ignoreMap":617},[621,1894,1895],{"class":623,"line":624},[621,1896,1897],{"class":672},"# Find all errors\n",[621,1899,1900,1903,1905,1908,1910],{"class":623,"line":676},[621,1901,1902],{"class":1734},"grep",[621,1904,645],{"class":631},[621,1906,1907],{"class":648},"\"level\":\"error\"",[621,1909,753],{"class":631},[621,1911,1796],{"class":648},[621,1913,1914],{"class":623,"line":695},[621,1915,699],{"emptyLinePlaceholder":698},[621,1917,1918],{"class":623,"line":702},[621,1919,1920],{"class":672},"# Find by request ID\n",[621,1922,1923,1925,1927,1930,1932,1935,1938],{"class":623,"line":733},[621,1924,1902],{"class":1734},[621,1926,645],{"class":631},[621,1928,1929],{"class":648},"req_abc123",[621,1931,753],{"class":631},[621,1933,1934],{"class":648}," .evlog\u002Flogs\u002F",[621,1936,1937],{"class":635},"*",[621,1939,1940],{"class":648},".jsonl\n",[604,1942,1944],{"id":1943},"direct-api-usage","Direct API Usage",[522,1946,1947],{},"For advanced use cases, use the lower-level write functions:",[611,1949,1951],{"className":613,"code":1950,"filename":615,"language":616,"meta":617,"style":617},"import { writeToFs, writeBatchToFs } from 'evlog\u002Ffs'\n\nawait writeToFs(event, {\n  dir: '.evlog\u002Flogs',\n  pretty: false,\n})\n\nawait writeBatchToFs(events, {\n  dir: '.evlog\u002Flogs',\n  pretty: false,\n})\n",[537,1952,1953,1977,1981,1994,2010,2022,2028,2032,2045,2059,2069],{"__ignoreMap":617},[621,1954,1955,1957,1959,1962,1964,1967,1969,1971,1973,1975],{"class":623,"line":624},[621,1956,628],{"class":627},[621,1958,632],{"class":631},[621,1960,1961],{"class":635}," writeToFs",[621,1963,761],{"class":631},[621,1965,1966],{"class":635}," writeBatchToFs",[621,1968,639],{"class":631},[621,1970,642],{"class":627},[621,1972,645],{"class":631},[621,1974,649],{"class":648},[621,1976,652],{"class":631},[621,1978,1979],{"class":623,"line":676},[621,1980,699],{"emptyLinePlaceholder":698},[621,1982,1983,1985,1987,1990,1992],{"class":623,"line":695},[621,1984,1071],{"class":627},[621,1986,1961],{"class":711},[621,1988,1989],{"class":635},"(event",[621,1991,761],{"class":631},[621,1993,730],{"class":631},[621,1995,1996,1999,2001,2003,2006,2008],{"class":623,"line":702},[621,1997,1998],{"class":750},"  dir",[621,2000,874],{"class":631},[621,2002,645],{"class":631},[621,2004,2005],{"class":648},".evlog\u002Flogs",[621,2007,753],{"class":631},[621,2009,884],{"class":631},[621,2011,2012,2015,2017,2020],{"class":623,"line":733},[621,2013,2014],{"class":750},"  pretty",[621,2016,874],{"class":631},[621,2018,2019],{"class":1528}," 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Log Analysis",[522,2080,2081,2082,2088],{},"The file system drain pairs with the ",[593,2083,2084,2087],{"href":513},[537,2085,2086],{},"analyze-logs"," agent skill",". 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