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But as your codebase grows, inconsistencies creep in: one route logs ",[557,562,563],{},"user",", another logs ",[557,566,567],{},"account",", a third logs ",[557,570,571],{},"userId",". Typed fields solve this with opt-in compile-time safety.",[574,575],"typed-fields-intellisense",{},[577,578,580],"h2",{"id":579},"basic-usage","Basic Usage",[553,582,583,584,586],{},"Define an interface for your fields and pass it as a generic to ",[557,585,559],{},":",[588,589,595],"pre",{"className":590,"code":591,"filename":592,"language":593,"meta":594,"style":594},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { useLogger } from 'evlog'\n\ninterface CheckoutFields {\n  user: { id: string; plan: string }\n  cart: { items: number; total: number }\n  action: string\n}\n\nexport default defineEventHandler(async (event) => {\n  const log = useLogger\u003CCheckoutFields>(event)\n\n  log.set({ user: { id: '123', plan: 'pro' } })  \u002F\u002F OK\n  log.set({ cart: { items: 3, total: 9999 } })    \u002F\u002F OK\n  log.set({ action: 'checkout' })                  \u002F\u002F OK\n\n  log.set({ account: '...' })                      \u002F\u002F TS error\n  log.set({ usr: { id: '123' } })                  \u002F\u002F TS error\n\n  return { success: true }\n})\n","server\u002Fapi\u002Fcheckout.post.ts","typescript","",[557,596,597,630,637,651,683,712,723,729,734,768,798,803,864,910,942,947,980,1018,1023,1042],{"__ignoreMap":594},[598,599,602,606,610,614,617,620,623,627],"span",{"class":600,"line":601},"line",1,[598,603,605],{"class":604},"s7zQu","import",[598,607,609],{"class":608},"sMK4o"," {",[598,611,613],{"class":612},"sTEyZ"," useLogger",[598,615,616],{"class":608}," }",[598,618,619],{"class":604}," from",[598,621,622],{"class":608}," '",[598,624,626],{"class":625},"sfazB","evlog",[598,628,629],{"class":608},"'\n",[598,631,633],{"class":600,"line":632},2,[598,634,636],{"emptyLinePlaceholder":635},true,"\n",[598,638,640,644,648],{"class":600,"line":639},3,[598,641,643],{"class":642},"spNyl","interface",[598,645,647],{"class":646},"sBMFI"," CheckoutFields",[598,649,650],{"class":608}," {\n",[598,652,654,658,660,662,665,667,670,673,676,678,680],{"class":600,"line":653},4,[598,655,657],{"class":656},"swJcz","  user",[598,659,586],{"class":608},[598,661,609],{"class":608},[598,663,664],{"class":656}," id",[598,666,586],{"class":608},[598,668,669],{"class":646}," string",[598,671,672],{"class":608},";",[598,674,675],{"class":656}," plan",[598,677,586],{"class":608},[598,679,669],{"class":646},[598,681,682],{"class":608}," }\n",[598,684,686,689,691,693,696,698,701,703,706,708,710],{"class":600,"line":685},5,[598,687,688],{"class":656},"  cart",[598,690,586],{"class":608},[598,692,609],{"class":608},[598,694,695],{"class":656}," items",[598,697,586],{"class":608},[598,699,700],{"class":646}," number",[598,702,672],{"class":608},[598,704,705],{"class":656}," total",[598,707,586],{"class":608},[598,709,700],{"class":646},[598,711,682],{"class":608},[598,713,715,718,720],{"class":600,"line":714},6,[598,716,717],{"class":656},"  action",[598,719,586],{"class":608},[598,721,722],{"class":646}," string\n",[598,724,726],{"class":600,"line":725},7,[598,727,728],{"class":608},"}\n",[598,730,732],{"class":600,"line":731},8,[598,733,636],{"emptyLinePlaceholder":635},[598,735,737,740,743,747,750,753,756,760,763,766],{"class":600,"line":736},9,[598,738,739],{"class":604},"export",[598,741,742],{"class":604}," default",[598,744,746],{"class":745},"s2Zo4"," defineEventHandler",[598,748,749],{"class":612},"(",[598,751,752],{"class":642},"async",[598,754,755],{"class":608}," (",[598,757,759],{"class":758},"sHdIc","event",[598,761,762],{"class":608},")",[598,764,765],{"class":642}," =>",[598,767,650],{"class":608},[598,769,771,774,777,780,782,785,788,791,793,795],{"class":600,"line":770},10,[598,772,773],{"class":642},"  const",[598,775,776],{"class":612}," log",[598,778,779],{"class":608}," =",[598,781,613],{"class":745},[598,783,784],{"class":608},"\u003C",[598,786,787],{"class":646},"CheckoutFields",[598,789,790],{"class":608},">",[598,792,749],{"class":656},[598,794,759],{"class":612},[598,796,797],{"class":656},")\n",[598,799,801],{"class":600,"line":800},11,[598,802,636],{"emptyLinePlaceholder":635},[598,804,806,809,812,815,817,820,823,825,827,829,831,833,836,839,842,844,846,848,851,853,855,857,860],{"class":600,"line":805},12,[598,807,808],{"class":612},"  log",[598,810,811],{"class":608},".",[598,813,814],{"class":745},"set",[598,816,749],{"class":656},[598,818,819],{"class":608},"{",[598,821,822],{"class":656}," user",[598,824,586],{"class":608},[598,826,609],{"class":608},[598,828,664],{"class":656},[598,830,586],{"class":608},[598,832,622],{"class":608},[598,834,835],{"class":625},"123",[598,837,838],{"class":608},"'",[598,840,841],{"class":608},",",[598,843,675],{"class":656},[598,845,586],{"class":608},[598,847,622],{"class":608},[598,849,850],{"class":625},"pro",[598,852,838],{"class":608},[598,854,616],{"class":608},[598,856,616],{"class":608},[598,858,859],{"class":656},")  ",[598,861,863],{"class":862},"sHwdD","\u002F\u002F OK\n",[598,865,867,869,871,873,875,877,880,882,884,886,888,892,894,896,898,901,903,905,908],{"class":600,"line":866},13,[598,868,808],{"class":612},[598,870,811],{"class":608},[598,872,814],{"class":745},[598,874,749],{"class":656},[598,876,819],{"class":608},[598,878,879],{"class":656}," cart",[598,881,586],{"class":608},[598,883,609],{"class":608},[598,885,695],{"class":656},[598,887,586],{"class":608},[598,889,891],{"class":890},"sbssI"," 3",[598,893,841],{"class":608},[598,895,705],{"class":656},[598,897,586],{"class":608},[598,899,900],{"class":890}," 9999",[598,902,616],{"class":608},[598,904,616],{"class":608},[598,906,907],{"class":656},")    ",[598,909,863],{"class":862},[598,911,913,915,917,919,921,923,926,928,930,933,935,937,940],{"class":600,"line":912},14,[598,914,808],{"class":612},[598,916,811],{"class":608},[598,918,814],{"class":745},[598,920,749],{"class":656},[598,922,819],{"class":608},[598,924,925],{"class":656}," action",[598,927,586],{"class":608},[598,929,622],{"class":608},[598,931,932],{"class":625},"checkout",[598,934,838],{"class":608},[598,936,616],{"class":608},[598,938,939],{"class":656},")                  ",[598,941,863],{"class":862},[598,943,945],{"class":600,"line":944},15,[598,946,636],{"emptyLinePlaceholder":635},[598,948,950,952,954,956,958,960,963,965,967,970,972,974,977],{"class":600,"line":949},16,[598,951,808],{"class":612},[598,953,811],{"class":608},[598,955,814],{"class":745},[598,957,749],{"class":656},[598,959,819],{"class":608},[598,961,962],{"class":656}," account",[598,964,586],{"class":608},[598,966,622],{"class":608},[598,968,969],{"class":625},"...",[598,971,838],{"class":608},[598,973,616],{"class":608},[598,975,976],{"class":656},")                      ",[598,978,979],{"class":862},"\u002F\u002F TS error\n",[598,981,983,985,987,989,991,993,996,998,1000,1002,1004,1006,1008,1010,1012,1014,1016],{"class":600,"line":982},17,[598,984,808],{"class":612},[598,986,811],{"class":608},[598,988,814],{"class":745},[598,990,749],{"class":656},[598,992,819],{"class":608},[598,994,995],{"class":656}," usr",[598,997,586],{"class":608},[598,999,609],{"class":608},[598,1001,664],{"class":656},[598,1003,586],{"class":608},[598,1005,622],{"class":608},[598,1007,835],{"class":625},[598,1009,838],{"class":608},[598,1011,616],{"class":608},[598,1013,616],{"class":608},[598,1015,939],{"class":656},[598,1017,979],{"class":862},[598,1019,1021],{"class":600,"line":1020},18,[598,1022,636],{"emptyLinePlaceholder":635},[598,1024,1026,1029,1031,1034,1036,1040],{"class":600,"line":1025},19,[598,1027,1028],{"class":604},"  return",[598,1030,609],{"class":608},[598,1032,1033],{"class":656}," success",[598,1035,586],{"class":608},[598,1037,1039],{"class":1038},"sfNiH"," true",[598,1041,682],{"class":608},[598,1043,1045,1048],{"class":600,"line":1044},20,[598,1046,1047],{"class":608},"}",[598,1049,797],{"class":612},[553,1051,1052],{},"TypeScript catches typos and unknown fields at compile time, before they reach production.",[577,1054,1056],{"id":1055},"internal-fields","Internal Fields",[553,1058,1059,1060,1063,1064,1067,1068,1071],{},"evlog sets some fields internally (",[557,1061,1062],{},"status",", ",[557,1065,1066],{},"service","). These are always accepted regardless of your type, through the ",[557,1069,1070],{},"InternalFields"," type:",[588,1073,1075],{"className":590,"code":1074,"filename":592,"language":593,"meta":594,"style":594},"log.set({ status: 200 })    \u002F\u002F OK - internal field\nlog.set({ service: 'api' }) \u002F\u002F OK - internal field\n",[557,1076,1077,1105],{"__ignoreMap":594},[598,1078,1079,1082,1084,1086,1088,1090,1093,1095,1098,1100,1102],{"class":600,"line":601},[598,1080,1081],{"class":612},"log",[598,1083,811],{"class":608},[598,1085,814],{"class":745},[598,1087,749],{"class":612},[598,1089,819],{"class":608},[598,1091,1092],{"class":656}," status",[598,1094,586],{"class":608},[598,1096,1097],{"class":890}," 200",[598,1099,616],{"class":608},[598,1101,907],{"class":612},[598,1103,1104],{"class":862},"\u002F\u002F OK - internal field\n",[598,1106,1107,1109,1111,1113,1115,1117,1120,1122,1124,1127,1129,1131,1134],{"class":600,"line":632},[598,1108,1081],{"class":612},[598,1110,811],{"class":608},[598,1112,814],{"class":745},[598,1114,749],{"class":612},[598,1116,819],{"class":608},[598,1118,1119],{"class":656}," service",[598,1121,586],{"class":608},[598,1123,622],{"class":608},[598,1125,1126],{"class":625},"api",[598,1128,838],{"class":608},[598,1130,616],{"class":608},[598,1132,1133],{"class":612},") ",[598,1135,1104],{"class":862},[553,1137,1138,1139,1141,1142,1144],{},"You don't need to include ",[557,1140,1062],{}," or ",[557,1143,1066],{}," in your interface.",[577,1146,1148],{"id":1147},"untyped-usage","Untyped Usage",[553,1150,1151,1152,1154],{},"Without a generic, ",[557,1153,559],{}," accepts any fields as usual:",[588,1156,1159],{"className":590,"code":1157,"filename":1158,"language":593,"meta":594,"style":594},"const log = useLogger(event)\nlog.set({ anything: true, nested: { deep: 'value' } }) \u002F\u002F OK\n","server\u002Fapi\u002Fexample.ts",[557,1160,1161,1177],{"__ignoreMap":594},[598,1162,1163,1166,1169,1172,1174],{"class":600,"line":601},[598,1164,1165],{"class":642},"const",[598,1167,1168],{"class":612}," log ",[598,1170,1171],{"class":608},"=",[598,1173,613],{"class":745},[598,1175,1176],{"class":612},"(event)\n",[598,1178,1179,1181,1183,1185,1187,1189,1192,1194,1196,1198,1201,1203,1205,1208,1210,1212,1215,1217,1219,1221,1223],{"class":600,"line":632},[598,1180,1081],{"class":612},[598,1182,811],{"class":608},[598,1184,814],{"class":745},[598,1186,749],{"class":612},[598,1188,819],{"class":608},[598,1190,1191],{"class":656}," anything",[598,1193,586],{"class":608},[598,1195,1039],{"class":1038},[598,1197,841],{"class":608},[598,1199,1200],{"class":656}," nested",[598,1202,586],{"class":608},[598,1204,609],{"class":608},[598,1206,1207],{"class":656}," deep",[598,1209,586],{"class":608},[598,1211,622],{"class":608},[598,1213,1214],{"class":625},"value",[598,1216,838],{"class":608},[598,1218,616],{"class":608},[598,1220,616],{"class":608},[598,1222,1133],{"class":612},[598,1224,863],{"class":862},[553,1226,1227],{},"Typed fields are fully opt-in.",[577,1229,1231],{"id":1230},"nuxt-auto-import","Nuxt Auto-Import",[1233,1234,1237,1238,1241,1242,1246],"callout",{"color":1235,"icon":1236},"warning","i-lucide-triangle-alert","When using typed fields with ",[557,1239,1240],{},"useLogger\u003CT>",", you ",[1243,1244,1245],"strong",{},"must"," use an explicit import. The Nuxt auto-import does not support excess property checking for generics due to a TypeScript limitation.",[588,1248,1250],{"className":590,"code":1249,"filename":592,"language":593,"meta":594,"style":594},"\u002F\u002F Works - explicit import preserves type checking\nimport { useLogger } from 'evlog'\nconst log = useLogger\u003CMyFields>(event)\nlog.set({ typo: 'oops' }) \u002F\u002F TS error\n\n\u002F\u002F Does NOT work - auto-import loses excess property checking\nconst log = useLogger\u003CMyFields>(event)\nlog.set({ typo: 'oops' }) \u002F\u002F No error (silently accepted)\n",[557,1251,1252,1257,1275,1294,1324,1328,1333,1351],{"__ignoreMap":594},[598,1253,1254],{"class":600,"line":601},[598,1255,1256],{"class":862},"\u002F\u002F Works - explicit import preserves type checking\n",[598,1258,1259,1261,1263,1265,1267,1269,1271,1273],{"class":600,"line":632},[598,1260,605],{"class":604},[598,1262,609],{"class":608},[598,1264,613],{"class":612},[598,1266,616],{"class":608},[598,1268,619],{"class":604},[598,1270,622],{"class":608},[598,1272,626],{"class":625},[598,1274,629],{"class":608},[598,1276,1277,1279,1281,1283,1285,1287,1290,1292],{"class":600,"line":639},[598,1278,1165],{"class":642},[598,1280,1168],{"class":612},[598,1282,1171],{"class":608},[598,1284,613],{"class":745},[598,1286,784],{"class":608},[598,1288,1289],{"class":646},"MyFields",[598,1291,790],{"class":608},[598,1293,1176],{"class":612},[598,1295,1296,1298,1300,1302,1304,1306,1309,1311,1313,1316,1318,1320,1322],{"class":600,"line":653},[598,1297,1081],{"class":612},[598,1299,811],{"class":608},[598,1301,814],{"class":745},[598,1303,749],{"class":612},[598,1305,819],{"class":608},[598,1307,1308],{"class":656}," typo",[598,1310,586],{"class":608},[598,1312,622],{"class":608},[598,1314,1315],{"class":625},"oops",[598,1317,838],{"class":608},[598,1319,616],{"class":608},[598,1321,1133],{"class":612},[598,1323,979],{"class":862},[598,1325,1326],{"class":600,"line":685},[598,1327,636],{"emptyLinePlaceholder":635},[598,1329,1330],{"class":600,"line":714},[598,1331,1332],{"class":862},"\u002F\u002F Does NOT work - auto-import loses excess property checking\n",[598,1334,1335,1337,1339,1341,1343,1345,1347,1349],{"class":600,"line":725},[598,1336,1165],{"class":642},[598,1338,1168],{"class":612},[598,1340,1171],{"class":608},[598,1342,613],{"class":745},[598,1344,784],{"class":608},[598,1346,1289],{"class":646},[598,1348,790],{"class":608},[598,1350,1176],{"class":612},[598,1352,1353,1355,1357,1359,1361,1363,1365,1367,1369,1371,1373,1375,1377],{"class":600,"line":731},[598,1354,1081],{"class":612},[598,1356,811],{"class":608},[598,1358,814],{"class":745},[598,1360,749],{"class":612},[598,1362,819],{"class":608},[598,1364,1308],{"class":656},[598,1366,586],{"class":608},[598,1368,622],{"class":608},[598,1370,1315],{"class":625},[598,1372,838],{"class":608},[598,1374,616],{"class":608},[598,1376,1133],{"class":612},[598,1378,1379],{"class":862},"\u002F\u002F No error (silently accepted)\n",[553,1381,1382],{},"The auto-import works perfectly for untyped usage. Only add the explicit import when you need typed fields.",[577,1384,1386],{"id":1385},"outside-nuxt","Outside Nuxt",[553,1388,1389,1390,1393,1394,586],{},"The same generic works with ",[557,1391,1392],{},"createRequestLogger"," and ",[557,1395,1396],{},"createWorkersLogger",[1398,1399,1400,1592],"code-group",{},[588,1401,1403],{"className":590,"code":1402,"filename":271,"language":593,"meta":594,"style":594},"import { createRequestLogger } from 'evlog'\n\ninterface MyFields {\n  action: string\n  userId: string\n}\n\nconst log = createRequestLogger\u003CMyFields>({\n  method: 'POST',\n  path: '\u002Fcheckout',\n})\n\nlog.set({ action: 'checkout', userId: '123' }) \u002F\u002F OK\nlog.set({ unknown: true })                      \u002F\u002F TS error\n",[557,1404,1405,1424,1428,1437,1445,1454,1458,1462,1483,1500,1516,1522,1526,1567],{"__ignoreMap":594},[598,1406,1407,1409,1411,1414,1416,1418,1420,1422],{"class":600,"line":601},[598,1408,605],{"class":604},[598,1410,609],{"class":608},[598,1412,1413],{"class":612}," createRequestLogger",[598,1415,616],{"class":608},[598,1417,619],{"class":604},[598,1419,622],{"class":608},[598,1421,626],{"class":625},[598,1423,629],{"class":608},[598,1425,1426],{"class":600,"line":632},[598,1427,636],{"emptyLinePlaceholder":635},[598,1429,1430,1432,1435],{"class":600,"line":639},[598,1431,643],{"class":642},[598,1433,1434],{"class":646}," MyFields",[598,1436,650],{"class":608},[598,1438,1439,1441,1443],{"class":600,"line":653},[598,1440,717],{"class":656},[598,1442,586],{"class":608},[598,1444,722],{"class":646},[598,1446,1447,1450,1452],{"class":600,"line":685},[598,1448,1449],{"class":656},"  userId",[598,1451,586],{"class":608},[598,1453,722],{"class":646},[598,1455,1456],{"class":600,"line":714},[598,1457,728],{"class":608},[598,1459,1460],{"class":600,"line":725},[598,1461,636],{"emptyLinePlaceholder":635},[598,1463,1464,1466,1468,1470,1472,1474,1476,1478,1480],{"class":600,"line":731},[598,1465,1165],{"class":642},[598,1467,1168],{"class":612},[598,1469,1171],{"class":608},[598,1471,1413],{"class":745},[598,1473,784],{"class":608},[598,1475,1289],{"class":646},[598,1477,790],{"class":608},[598,1479,749],{"class":612},[598,1481,1482],{"class":608},"{\n",[598,1484,1485,1488,1490,1492,1495,1497],{"class":600,"line":736},[598,1486,1487],{"class":656},"  method",[598,1489,586],{"class":608},[598,1491,622],{"class":608},[598,1493,1494],{"class":625},"POST",[598,1496,838],{"class":608},[598,1498,1499],{"class":608},",\n",[598,1501,1502,1505,1507,1509,1512,1514],{"class":600,"line":770},[598,1503,1504],{"class":656},"  path",[598,1506,586],{"class":608},[598,1508,622],{"class":608},[598,1510,1511],{"class":625},"\u002Fcheckout",[598,1513,838],{"class":608},[598,1515,1499],{"class":608},[598,1517,1518,1520],{"class":600,"line":800},[598,1519,1047],{"class":608},[598,1521,797],{"class":612},[598,1523,1524],{"class":600,"line":805},[598,1525,636],{"emptyLinePlaceholder":635},[598,1527,1528,1530,1532,1534,1536,1538,1540,1542,1544,1546,1548,1550,1553,1555,1557,1559,1561,1563,1565],{"class":600,"line":866},[598,1529,1081],{"class":612},[598,1531,811],{"class":608},[598,1533,814],{"class":745},[598,1535,749],{"class":612},[598,1537,819],{"class":608},[598,1539,925],{"class":656},[598,1541,586],{"class":608},[598,1543,622],{"class":608},[598,1545,932],{"class":625},[598,1547,838],{"class":608},[598,1549,841],{"class":608},[598,1551,1552],{"class":656}," userId",[598,1554,586],{"class":608},[598,1556,622],{"class":608},[598,1558,835],{"class":625},[598,1560,838],{"class":608},[598,1562,616],{"class":608},[598,1564,1133],{"class":612},[598,1566,863],{"class":862},[598,1568,1569,1571,1573,1575,1577,1579,1582,1584,1586,1588,1590],{"class":600,"line":912},[598,1570,1081],{"class":612},[598,1572,811],{"class":608},[598,1574,814],{"class":745},[598,1576,749],{"class":612},[598,1578,819],{"class":608},[598,1580,1581],{"class":656}," unknown",[598,1583,586],{"class":608},[598,1585,1039],{"class":1038},[598,1587,616],{"class":608},[598,1589,976],{"class":612},[598,1591,979],{"class":862},[588,1593,1595],{"className":590,"code":1594,"filename":266,"language":593,"meta":594,"style":594},"import { createWorkersLogger } from 'evlog\u002Fworkers'\n\ninterface MyFields {\n  action: string\n}\n\nconst log = createWorkersLogger\u003CMyFields>(request)\nlog.set({ action: 'process' }) \u002F\u002F OK\n",[557,1596,1597,1617,1621,1629,1637,1641,1645,1664],{"__ignoreMap":594},[598,1598,1599,1601,1603,1606,1608,1610,1612,1615],{"class":600,"line":601},[598,1600,605],{"class":604},[598,1602,609],{"class":608},[598,1604,1605],{"class":612}," createWorkersLogger",[598,1607,616],{"class":608},[598,1609,619],{"class":604},[598,1611,622],{"class":608},[598,1613,1614],{"class":625},"evlog\u002Fworkers",[598,1616,629],{"class":608},[598,1618,1619],{"class":600,"line":632},[598,1620,636],{"emptyLinePlaceholder":635},[598,1622,1623,1625,1627],{"class":600,"line":639},[598,1624,643],{"class":642},[598,1626,1434],{"class":646},[598,1628,650],{"class":608},[598,1630,1631,1633,1635],{"class":600,"line":653},[598,1632,717],{"class":656},[598,1634,586],{"class":608},[598,1636,722],{"class":646},[598,1638,1639],{"class":600,"line":685},[598,1640,728],{"class":608},[598,1642,1643],{"class":600,"line":714},[598,1644,636],{"emptyLinePlaceholder":635},[598,1646,1647,1649,1651,1653,1655,1657,1659,1661],{"class":600,"line":725},[598,1648,1165],{"class":642},[598,1650,1168],{"class":612},[598,1652,1171],{"class":608},[598,1654,1605],{"class":745},[598,1656,784],{"class":608},[598,1658,1289],{"class":646},[598,1660,790],{"class":608},[598,1662,1663],{"class":612},"(request)\n",[598,1665,1666,1668,1670,1672,1674,1676,1678,1680,1682,1685,1687,1689,1691],{"class":600,"line":731},[598,1667,1081],{"class":612},[598,1669,811],{"class":608},[598,1671,814],{"class":745},[598,1673,749],{"class":612},[598,1675,819],{"class":608},[598,1677,925],{"class":656},[598,1679,586],{"class":608},[598,1681,622],{"class":608},[598,1683,1684],{"class":625},"process",[598,1686,838],{"class":608},[598,1688,616],{"class":608},[598,1690,1133],{"class":612},[598,1692,863],{"class":862},[577,1694,1696],{"id":1695},"design-tips","Design Tips",[1698,1699,1701],"h3",{"id":1700},"one-interface-per-domain","One Interface Per Domain",[553,1703,1704],{},"Define field interfaces per domain area, not per route:",[588,1706,1709],{"className":590,"code":1707,"filename":1708,"language":593,"meta":594,"style":594},"export interface AuthFields {\n  user: { id: string; email: string; role: string }\n  action: string\n  mfaUsed: boolean\n}\n\nexport interface PaymentFields {\n  user: { id: string; plan: string }\n  order: { id: string; total: number; currency: string }\n  payment: { method: string; last4: string }\n}\n","server\u002Ftypes\u002Flog-fields.ts",[557,1710,1711,1723,1757,1765,1775,1779,1783,1794,1818,1852,1879],{"__ignoreMap":594},[598,1712,1713,1715,1718,1721],{"class":600,"line":601},[598,1714,739],{"class":604},[598,1716,1717],{"class":642}," interface",[598,1719,1720],{"class":646}," AuthFields",[598,1722,650],{"class":608},[598,1724,1725,1727,1729,1731,1733,1735,1737,1739,1742,1744,1746,1748,1751,1753,1755],{"class":600,"line":632},[598,1726,657],{"class":656},[598,1728,586],{"class":608},[598,1730,609],{"class":608},[598,1732,664],{"class":656},[598,1734,586],{"class":608},[598,1736,669],{"class":646},[598,1738,672],{"class":608},[598,1740,1741],{"class":656}," email",[598,1743,586],{"class":608},[598,1745,669],{"class":646},[598,1747,672],{"class":608},[598,1749,1750],{"class":656}," role",[598,1752,586],{"class":608},[598,1754,669],{"class":646},[598,1756,682],{"class":608},[598,1758,1759,1761,1763],{"class":600,"line":639},[598,1760,717],{"class":656},[598,1762,586],{"class":608},[598,1764,722],{"class":646},[598,1766,1767,1770,1772],{"class":600,"line":653},[598,1768,1769],{"class":656},"  mfaUsed",[598,1771,586],{"class":608},[598,1773,1774],{"class":646}," boolean\n",[598,1776,1777],{"class":600,"line":685},[598,1778,728],{"class":608},[598,1780,1781],{"class":600,"line":714},[598,1782,636],{"emptyLinePlaceholder":635},[598,1784,1785,1787,1789,1792],{"class":600,"line":725},[598,1786,739],{"class":604},[598,1788,1717],{"class":642},[598,1790,1791],{"class":646}," PaymentFields",[598,1793,650],{"class":608},[598,1795,1796,1798,1800,1802,1804,1806,1808,1810,1812,1814,1816],{"class":600,"line":731},[598,1797,657],{"class":656},[598,1799,586],{"class":608},[598,1801,609],{"class":608},[598,1803,664],{"class":656},[598,1805,586],{"class":608},[598,1807,669],{"class":646},[598,1809,672],{"class":608},[598,1811,675],{"class":656},[598,1813,586],{"class":608},[598,1815,669],{"class":646},[598,1817,682],{"class":608},[598,1819,1820,1823,1825,1827,1829,1831,1833,1835,1837,1839,1841,1843,1846,1848,1850],{"class":600,"line":736},[598,1821,1822],{"class":656},"  order",[598,1824,586],{"class":608},[598,1826,609],{"class":608},[598,1828,664],{"class":656},[598,1830,586],{"class":608},[598,1832,669],{"class":646},[598,1834,672],{"class":608},[598,1836,705],{"class":656},[598,1838,586],{"class":608},[598,1840,700],{"class":646},[598,1842,672],{"class":608},[598,1844,1845],{"class":656}," currency",[598,1847,586],{"class":608},[598,1849,669],{"class":646},[598,1851,682],{"class":608},[598,1853,1854,1857,1859,1861,1864,1866,1868,1870,1873,1875,1877],{"class":600,"line":770},[598,1855,1856],{"class":656},"  payment",[598,1858,586],{"class":608},[598,1860,609],{"class":608},[598,1862,1863],{"class":656}," method",[598,1865,586],{"class":608},[598,1867,669],{"class":646},[598,1869,672],{"class":608},[598,1871,1872],{"class":656}," last4",[598,1874,586],{"class":608},[598,1876,669],{"class":646},[598,1878,682],{"class":608},[598,1880,1881],{"class":600,"line":800},[598,1882,728],{"class":608},[588,1884,1887],{"className":590,"code":1885,"filename":1886,"language":593,"meta":594,"style":594},"import { useLogger } from 'evlog'\nimport type { AuthFields } from '~\u002Fserver\u002Ftypes\u002Flog-fields'\n\nexport default defineEventHandler(async (event) => {\n  const log = useLogger\u003CAuthFields>(event)\n  \u002F\u002F ...\n})\n","server\u002Fapi\u002Fauth\u002Flogin.post.ts",[557,1888,1889,1907,1929,1933,1955,1978,1983],{"__ignoreMap":594},[598,1890,1891,1893,1895,1897,1899,1901,1903,1905],{"class":600,"line":601},[598,1892,605],{"class":604},[598,1894,609],{"class":608},[598,1896,613],{"class":612},[598,1898,616],{"class":608},[598,1900,619],{"class":604},[598,1902,622],{"class":608},[598,1904,626],{"class":625},[598,1906,629],{"class":608},[598,1908,1909,1911,1914,1916,1918,1920,1922,1924,1927],{"class":600,"line":632},[598,1910,605],{"class":604},[598,1912,1913],{"class":604}," 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 \u002F\u002F ...\n",[598,1984,1985,1987],{"class":600,"line":725},[598,1986,1047],{"class":608},[598,1988,797],{"class":612},[1698,1990,1992],{"id":1991},"keep-interfaces-focused","Keep Interfaces Focused",[553,1994,1995],{},"Include only the fields your routes actually set. The interface doesn't need to mirror your entire data model:",[588,1997,2000],{"className":590,"code":1998,"filename":1999,"language":593,"meta":594,"style":594},"\u002F\u002F Too broad - most routes won't set all these\ninterface EverythingFields {\n  user: FullUserProfile\n  order: CompleteOrder\n  payment: PaymentDetails\n  shipping: ShippingInfo\n}\n\n\u002F\u002F Focused - only what this route sets\ninterface CheckoutFields {\n  user: { id: string; plan: string }\n  cart: { items: number; total: number }\n}\n","server\u002Ftypes\u002Fevlog.ts",[557,2001,2002,2007,2016,2025,2034,2043,2053,2057,2061,2066,2074,2098,2122],{"__ignoreMap":594},[598,2003,2004],{"class":600,"line":601},[598,2005,2006],{"class":862},"\u002F\u002F Too broad - most routes won't set all these\n",[598,2008,2009,2011,2014],{"class":600,"line":632},[598,2010,643],{"class":642},[598,2012,2013],{"class":646}," EverythingFields",[598,2015,650],{"class":608},[598,2017,2018,2020,2022],{"class":600,"line":639},[598,2019,657],{"class":656},[598,2021,586],{"class":608},[598,2023,2024],{"class":646}," FullUserProfile\n",[598,2026,2027,2029,2031],{"class":600,"line":653},[598,2028,1822],{"class":656},[598,2030,586],{"class":608},[598,2032,2033],{"class":646}," CompleteOrder\n",[598,2035,2036,2038,2040],{"class":600,"line":685},[598,2037,1856],{"class":656},[598,2039,586],{"class":608},[598,2041,2042],{"class":646}," PaymentDetails\n",[598,2044,2045,2048,2050],{"class":600,"line":714},[598,2046,2047],{"class":656},"  shipping",[598,2049,586],{"class":608},[598,2051,2052],{"class":646}," ShippingInfo\n",[598,2054,2055],{"class":600,"line":725},[598,2056,728],{"class":608},[598,2058,2059],{"class":600,"line":731},[598,2060,636],{"emptyLinePlaceholder":635},[598,2062,2063],{"class":600,"line":736},[598,2064,2065],{"class":862},"\u002F\u002F Focused - only what this route sets\n",[598,2067,2068,2070,2072],{"class":600,"line":770},[598,2069,643],{"class":642},[598,2071,647],{"class":646},[598,2073,650],{"class":608},[598,2075,2076,2078,2080,2082,2084,2086,2088,2090,2092,2094,2096],{"class":600,"line":800},[598,2077,657],{"class":656},[598,2079,586],{"class":608},[598,2081,609],{"class":608},[598,2083,664],{"class":656},[598,2085,586],{"class":608},[598,2087,669],{"class":646},[598,2089,672],{"class":608},[598,2091,675],{"class":656},[598,2093,586],{"class":608},[598,2095,669],{"class":646},[598,2097,682],{"class":608},[598,2099,2100,2102,2104,2106,2108,2110,2112,2114,2116,2118,2120],{"class":600,"line":805},[598,2101,688],{"class":656},[598,2103,586],{"class":608},[598,2105,609],{"class":608},[598,2107,695],{"class":656},[598,2109,586],{"class":608},[598,2111,700],{"class":646},[598,2113,672],{"class":608},[598,2115,705],{"class":656},[598,2117,586],{"class":608},[598,2119,700],{"class":646},[598,2121,682],{"class":608},[598,2123,2124],{"class":600,"line":866},[598,2125,728],{"class":608},[577,2127,2129],{"id":2128},"next-steps","Next 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Prevent typos and ensure consistent field names across your codebase.","md",[2173,2176],{"label":51,"icon":54,"to":52,"color":2174,"variant":2175},"neutral","subtle",{"label":185,"icon":129,"to":186,"color":2174,"variant":2175},{},{"icon":183},{"title":180,"description":2170},"IHvSrviCBXZy-M44EK9kDbao9VMGiJDt6y3qukEswMU",[2182,2184],{"title":175,"path":176,"stem":177,"description":2183,"icon":178,"children":-1},"Control log volume with two-tier sampling. Head sampling drops noise by level, tail sampling rescues critical events based on outcome. Never miss errors, slow requests, or critical paths.",{"title":185,"path":186,"stem":187,"description":2185,"icon":129,"children":-1},"Security guidelines, data sanitization, and production tips for evlog. Learn what not to log and how to protect sensitive data.",1778338248012]