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OpenTelemetry","\u002Fcompare\u002Fopentelemetry","8.compare\u002F2.opentelemetry",{"title":591,"path":592,"stem":593,"icon":567},"evlog vs LogTape","\u002Fcompare\u002Flogtape","8.compare\u002F3.logtape",{"title":595,"path":596,"stem":597,"icon":567},"evlog vs Winston: formats and request events","\u002Fcompare\u002Fwinston","8.compare\u002F4.winston",{"title":599,"path":600,"stem":601,"icon":567},"evlog vs Consola: reporters and request context","\u002Fcompare\u002Fconsola","8.compare\u002F5.consola",{"id":603,"title":604,"body":605,"description":2454,"extension":2455,"links":2456,"meta":2461,"navigation":2462,"path":416,"seo":2463,"stem":417,"__hash__":2464},"docs\u002F5.use-cases\u002F4.audit\u002F06.recipes.md","Recipes & Reference",{"type":606,"value":607,"toc":2447},"minimark",[608,625,630,1238,1247,1251,1550,1553,1557,1932,1942,1946,1962,2208,2222,2233,2237,2437,2443],[609,610,611,612,616,617,620,621,624],"p",{},"Pick the recipe that matches your drain, drop it in, and you have a tamper-evident audit log. Each recipe composes the same primitives (",[613,614,615],"code",{},"auditOnly",", ",[613,618,619],{},"signed",", optional ",[613,622,623],{},"await: true",") over different drains.",[626,627,629],"h2",{"id":628},"audit-logs-on-disk","Audit logs on disk",[631,632,633,839],"code-group",{},[634,635,641],"pre",{"className":636,"code":637,"filename":638,"language":639,"meta":640,"style":640},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { auditOnly, signed } from 'evlog'\nimport { createFsDrain } from 'evlog\u002Ffs'\n\nnitro.hooks.hook('evlog:drain', auditOnly(\n  signed(createFsDrain({ dir: '.audit', maxFiles: 30 }), { strategy: 'hash-chain' }),\n  { await: true },\n))\n","Input — server\u002Fplugins\u002Fevlog.ts","typescript","",[613,642,643,682,703,710,746,815,833],{"__ignoreMap":640},[644,645,648,652,656,660,663,666,669,672,675,679],"span",{"class":646,"line":647},"line",1,[644,649,651],{"class":650},"s7zQu","import",[644,653,655],{"class":654},"sMK4o"," {",[644,657,659],{"class":658},"sTEyZ"," auditOnly",[644,661,662],{"class":654},",",[644,664,665],{"class":658}," signed",[644,667,668],{"class":654}," }",[644,670,671],{"class":650}," from",[644,673,674],{"class":654}," '",[644,676,678],{"class":677},"sfazB","evlog",[644,680,681],{"class":654},"'\n",[644,683,685,687,689,692,694,696,698,701],{"class":646,"line":684},2,[644,686,651],{"class":650},[644,688,655],{"class":654},[644,690,691],{"class":658}," createFsDrain",[644,693,668],{"class":654},[644,695,671],{"class":650},[644,697,674],{"class":654},[644,699,700],{"class":677},"evlog\u002Ffs",[644,702,681],{"class":654},[644,704,706],{"class":646,"line":705},3,[644,707,709],{"emptyLinePlaceholder":708},true,"\n",[644,711,713,716,719,722,724,728,731,734,737,739,741,743],{"class":646,"line":712},4,[644,714,715],{"class":658},"nitro",[644,717,718],{"class":654},".",[644,720,721],{"class":658},"hooks",[644,723,718],{"class":654},[644,725,727],{"class":726},"s2Zo4","hook",[644,729,730],{"class":658},"(",[644,732,733],{"class":654},"'",[644,735,736],{"class":677},"evlog:drain",[644,738,733],{"class":654},[644,740,662],{"class":654},[644,742,659],{"class":726},[644,744,745],{"class":658},"(\n",[644,747,749,752,754,757,759,762,766,769,771,774,776,778,781,783,787,789,792,794,796,799,801,803,806,808,810,812],{"class":646,"line":748},5,[644,750,751],{"class":726},"  signed",[644,753,730],{"class":658},[644,755,756],{"class":726},"createFsDrain",[644,758,730],{"class":658},[644,760,761],{"class":654},"{",[644,763,765],{"class":764},"swJcz"," dir",[644,767,768],{"class":654},":",[644,770,674],{"class":654},[644,772,773],{"class":677},".audit",[644,775,733],{"class":654},[644,777,662],{"class":654},[644,779,780],{"class":764}," maxFiles",[644,782,768],{"class":654},[644,784,786],{"class":785},"sbssI"," 30",[644,788,668],{"class":654},[644,790,791],{"class":658},")",[644,793,662],{"class":654},[644,795,655],{"class":654},[644,797,798],{"class":764}," strategy",[644,800,768],{"class":654},[644,802,674],{"class":654},[644,804,805],{"class":677},"hash-chain",[644,807,733],{"class":654},[644,809,668],{"class":654},[644,811,791],{"class":658},[644,813,814],{"class":654},",\n",[644,816,818,821,824,826,830],{"class":646,"line":817},6,[644,819,820],{"class":654},"  {",[644,822,823],{"class":764}," await",[644,825,768],{"class":654},[644,827,829],{"class":828},"sfNiH"," true",[644,831,832],{"class":654}," },\n",[644,834,836],{"class":646,"line":835},7,[644,837,838],{"class":658},"))\n",[634,840,845],{"className":841,"code":842,"filename":843,"language":844,"meta":640,"style":640},"language-jsonl shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\"audit\":{\"action\":\"invoice.refund\",\"actor\":{\"type\":\"user\",\"id\":\"usr_42\"},\"target\":{\"type\":\"invoice\",\"id\":\"inv_889\"},\"outcome\":\"success\",\"version\":1,\"idempotencyKey\":\"ak_8f3c4b2a1e5d6f7c\",\"prevHash\":null,\"hash\":\"3f2c8e1a...\"}}\n{\"audit\":{\"action\":\"user.update\",\"actor\":{\"type\":\"user\",\"id\":\"usr_42\"},\"target\":{\"type\":\"user\",\"id\":\"usr_99\"},\"outcome\":\"success\",\"version\":1,\"idempotencyKey\":\"ak_5e7d8f9a0b1c2d3e\",\"prevHash\":\"3f2c8e1a...\",\"hash\":\"9a1b4d7c...\"}}\n","Output — .audit\u002F2026-04-24.ndjson","jsonl",[613,846,847,1050],{"__ignoreMap":640},[644,848,849,851,854,858,860,863,865,869,871,873,875,878,880,882,884,887,889,891,893,896,898,900,902,905,907,909,911,914,916,918,920,923,925,928,930,933,935,937,939,941,943,945,947,950,952,954,956,958,960,962,964,967,969,971,973,976,978,980,982,985,987,989,991,994,996,998,1001,1003,1005,1008,1010,1012,1014,1017,1019,1021,1023,1026,1028,1031,1033,1036,1038,1040,1042,1045,1047],{"class":646,"line":647},[644,850,761],{"class":654},[644,852,853],{"class":654},"\"",[644,855,857],{"class":856},"spNyl","audit",[644,859,853],{"class":654},[644,861,862],{"class":654},":{",[644,864,853],{"class":654},[644,866,868],{"class":867},"sBMFI","action",[644,870,853],{"class":654},[644,872,768],{"class":654},[644,874,853],{"class":654},[644,876,877],{"class":677},"invoice.refund",[644,879,853],{"class":654},[644,881,662],{"class":654},[644,883,853],{"class":654},[644,885,886],{"class":867},"actor",[644,888,853],{"class":654},[644,890,862],{"class":654},[644,892,853],{"class":654},[644,894,895],{"class":785},"type",[644,897,853],{"class":654},[644,899,768],{"class":654},[644,901,853],{"class":654},[644,903,904],{"class":677},"user",[644,906,853],{"class":654},[644,908,662],{"class":654},[644,910,853],{"class":654},[644,912,913],{"class":785},"id",[644,915,853],{"class":654},[644,917,768],{"class":654},[644,919,853],{"class":654},[644,921,922],{"class":677},"usr_42",[644,924,853],{"class":654},[644,926,927],{"class":654},"},",[644,929,853],{"class":654},[644,931,932],{"class":867},"target",[644,934,853],{"class":654},[644,936,862],{"class":654},[644,938,853],{"class":654},[644,940,895],{"class":785},[644,942,853],{"class":654},[644,944,768],{"class":654},[644,946,853],{"class":654},[644,948,949],{"class":677},"invoice",[644,951,853],{"class":654},[644,953,662],{"class":654},[644,955,853],{"class":654},[644,957,913],{"class":785},[644,959,853],{"class":654},[644,961,768],{"class":654},[644,963,853],{"class":654},[644,965,966],{"class":677},"inv_889",[644,968,853],{"class":654},[644,970,927],{"class":654},[644,972,853],{"class":654},[644,974,975],{"class":867},"outcome",[644,977,853],{"class":654},[644,979,768],{"class":654},[644,981,853],{"class":654},[644,983,984],{"class":677},"success",[644,986,853],{"class":654},[644,988,662],{"class":654},[644,990,853],{"class":654},[644,992,993],{"class":867},"version",[644,995,853],{"class":654},[644,997,768],{"class":654},[644,999,1000],{"class":785},"1",[644,1002,662],{"class":654},[644,1004,853],{"class":654},[644,1006,1007],{"class":867},"idempotencyKey",[644,1009,853],{"class":654},[644,1011,768],{"class":654},[644,1013,853],{"class":654},[644,1015,1016],{"class":677},"ak_8f3c4b2a1e5d6f7c",[644,1018,853],{"class":654},[644,1020,662],{"class":654},[644,1022,853],{"class":654},[644,1024,1025],{"class":867},"prevHash",[644,1027,853],{"class":654},[644,1029,1030],{"class":654},":null,",[644,1032,853],{"class":654},[644,1034,1035],{"class":867},"hash",[644,1037,853],{"class":654},[644,1039,768],{"class":654},[644,1041,853],{"class":654},[644,1043,1044],{"class":677},"3f2c8e1a...",[644,1046,853],{"class":654},[644,1048,1049],{"class":654},"}}\n",[644,1051,1052,1054,1056,1058,1060,1062,1064,1066,1068,1070,1072,1075,1077,1079,1081,1083,1085,1087,1089,1091,1093,1095,1097,1099,1101,1103,1105,1107,1109,1111,1113,1115,1117,1119,1121,1123,1125,1127,1129,1131,1133,1135,1137,1139,1141,1143,1145,1147,1149,1151,1153,1156,1158,1160,1162,1164,1166,1168,1170,1172,1174,1176,1178,1180,1182,1184,1186,1188,1190,1192,1194,1196,1198,1201,1203,1205,1207,1209,1211,1213,1215,1217,1219,1221,1223,1225,1227,1229,1231,1234,1236],{"class":646,"line":684},[644,1053,761],{"class":654},[644,1055,853],{"class":654},[644,1057,857],{"class":856},[644,1059,853],{"class":654},[644,1061,862],{"class":654},[644,1063,853],{"class":654},[644,1065,868],{"class":867},[644,1067,853],{"class":654},[644,1069,768],{"class":654},[644,1071,853],{"class":654},[644,1073,1074],{"class":677},"user.update",[644,1076,853],{"class":654},[644,1078,662],{"class":654},[644,1080,853],{"class":654},[644,1082,886],{"class":867},[644,1084,853],{"class":654},[644,1086,862],{"class":654},[644,1088,853],{"class":654},[644,1090,895],{"class":785},[644,1092,853],{"class":654},[644,1094,768],{"class":654},[644,1096,853],{"class":654},[644,1098,904],{"class":677},[644,1100,853],{"class":654},[644,1102,662],{"class":654},[644,1104,853],{"class":654},[644,1106,913],{"class":785},[644,1108,853],{"class":654},[644,1110,768],{"class":654},[644,1112,853],{"class":654},[644,1114,922],{"class":677},[644,1116,853],{"class":654},[644,1118,927],{"class":654},[644,1120,853],{"class":654},[644,1122,932],{"class":867},[644,1124,853],{"class":654},[644,1126,862],{"class":654},[644,1128,853],{"class":654},[644,1130,895],{"class":785},[644,1132,853],{"class":654},[644,1134,768],{"class":654},[644,1136,853],{"class":654},[644,1138,904],{"class":677},[644,1140,853],{"class":654},[644,1142,662],{"class":654},[644,1144,853],{"class":654},[644,1146,913],{"class":785},[644,1148,853],{"class":654},[644,1150,768],{"class":654},[644,1152,853],{"class":654},[644,1154,1155],{"class":677},"usr_99",[644,1157,853],{"class":654},[644,1159,927],{"class":654},[644,1161,853],{"class":654},[644,1163,975],{"class":867},[644,1165,853],{"class":654},[644,1167,768],{"class":654},[644,1169,853],{"class":654},[644,1171,984],{"class":677},[644,1173,853],{"class":654},[644,1175,662],{"class":654},[644,1177,853],{"class":654},[644,1179,993],{"class":867},[644,1181,853],{"class":654},[644,1183,768],{"class":654},[644,1185,1000],{"class":785},[644,1187,662],{"class":654},[644,1189,853],{"class":654},[644,1191,1007],{"class":867},[644,1193,853],{"class":654},[644,1195,768],{"class":654},[644,1197,853],{"class":654},[644,1199,1200],{"class":677},"ak_5e7d8f9a0b1c2d3e",[644,1202,853],{"class":654},[644,1204,662],{"class":654},[644,1206,853],{"class":654},[644,1208,1025],{"class":867},[644,1210,853],{"class":654},[644,1212,768],{"class":654},[644,1214,853],{"class":654},[644,1216,1044],{"class":677},[644,1218,853],{"class":654},[644,1220,662],{"class":654},[644,1222,853],{"class":654},[644,1224,1035],{"class":867},[644,1226,853],{"class":654},[644,1228,768],{"class":654},[644,1230,853],{"class":654},[644,1232,1233],{"class":677},"9a1b4d7c...",[644,1235,853],{"class":654},[644,1237,1049],{"class":654},[609,1239,1240,1241,1243,1244,1246],{},"Each line's ",[613,1242,1025],{}," matches the previous line's ",[613,1245,1035],{},". Tampering with any row breaks the chain forward of that point, and a verifier replays the hashes and reports the first mismatch.",[626,1248,1250],{"id":1249},"audit-logs-to-a-dedicated-axiom-dataset","Audit logs to a dedicated Axiom dataset",[631,1252,1253,1420,1488],{},[634,1254,1256],{"className":636,"code":1255,"filename":638,"language":639,"meta":640,"style":640},"import { auditOnly } from 'evlog'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\nnitro.hooks.hook('evlog:drain', createAxiomDrain({ dataset: 'logs' }))\nnitro.hooks.hook('evlog:drain', auditOnly(\n  createAxiomDrain({ dataset: 'audit', apiKey: process.env.AXIOM_AUDIT_API_KEY }),\n))\n",[613,1257,1258,1276,1296,1300,1344,1370,1416],{"__ignoreMap":640},[644,1259,1260,1262,1264,1266,1268,1270,1272,1274],{"class":646,"line":647},[644,1261,651],{"class":650},[644,1263,655],{"class":654},[644,1265,659],{"class":658},[644,1267,668],{"class":654},[644,1269,671],{"class":650},[644,1271,674],{"class":654},[644,1273,678],{"class":677},[644,1275,681],{"class":654},[644,1277,1278,1280,1282,1285,1287,1289,1291,1294],{"class":646,"line":684},[644,1279,651],{"class":650},[644,1281,655],{"class":654},[644,1283,1284],{"class":658}," createAxiomDrain",[644,1286,668],{"class":654},[644,1288,671],{"class":650},[644,1290,674],{"class":654},[644,1292,1293],{"class":677},"evlog\u002Faxiom",[644,1295,681],{"class":654},[644,1297,1298],{"class":646,"line":705},[644,1299,709],{"emptyLinePlaceholder":708},[644,1301,1302,1304,1306,1308,1310,1312,1314,1316,1318,1320,1322,1324,1326,1328,1331,1333,1335,1338,1340,1342],{"class":646,"line":712},[644,1303,715],{"class":658},[644,1305,718],{"class":654},[644,1307,721],{"class":658},[644,1309,718],{"class":654},[644,1311,727],{"class":726},[644,1313,730],{"class":658},[644,1315,733],{"class":654},[644,1317,736],{"class":677},[644,1319,733],{"class":654},[644,1321,662],{"class":654},[644,1323,1284],{"class":726},[644,1325,730],{"class":658},[644,1327,761],{"class":654},[644,1329,1330],{"class":764}," dataset",[644,1332,768],{"class":654},[644,1334,674],{"class":654},[644,1336,1337],{"class":677},"logs",[644,1339,733],{"class":654},[644,1341,668],{"class":654},[644,1343,838],{"class":658},[644,1345,1346,1348,1350,1352,1354,1356,1358,1360,1362,1364,1366,1368],{"class":646,"line":748},[644,1347,715],{"class":658},[644,1349,718],{"class":654},[644,1351,721],{"class":658},[644,1353,718],{"class":654},[644,1355,727],{"class":726},[644,1357,730],{"class":658},[644,1359,733],{"class":654},[644,1361,736],{"class":677},[644,1363,733],{"class":654},[644,1365,662],{"class":654},[644,1367,659],{"class":726},[644,1369,745],{"class":658},[644,1371,1372,1375,1377,1379,1381,1383,1385,1387,1389,1391,1394,1396,1399,1401,1404,1406,1409,1412,1414],{"class":646,"line":817},[644,1373,1374],{"class":726},"  createAxiomDrain",[644,1376,730],{"class":658},[644,1378,761],{"class":654},[644,1380,1330],{"class":764},[644,1382,768],{"class":654},[644,1384,674],{"class":654},[644,1386,857],{"class":677},[644,1388,733],{"class":654},[644,1390,662],{"class":654},[644,1392,1393],{"class":764}," apiKey",[644,1395,768],{"class":654},[644,1397,1398],{"class":658}," process",[644,1400,718],{"class":654},[644,1402,1403],{"class":658},"env",[644,1405,718],{"class":654},[644,1407,1408],{"class":658},"AXIOM_AUDIT_API_KEY ",[644,1410,1411],{"class":654},"}",[644,1413,791],{"class":658},[644,1415,814],{"class":654},[644,1417,1418],{"class":646,"line":835},[644,1419,838],{"class":658},[634,1421,1426],{"className":1422,"code":1423,"filename":1424,"language":1425,"meta":640,"style":640},"language-kusto shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","['audit']\n| where audit.action == \"invoice.refund\"\n| summarize count() by audit.outcome, bin(_time, 1h)\n","Output — Axiom query","kusto",[613,1427,1428,1442,1460],{"__ignoreMap":640},[644,1429,1430,1433,1435,1437,1439],{"class":646,"line":647},[644,1431,1432],{"class":658},"[",[644,1434,733],{"class":654},[644,1436,857],{"class":677},[644,1438,733],{"class":654},[644,1440,1441],{"class":658},"]\n",[644,1443,1444,1447,1450,1453,1455,1457],{"class":646,"line":684},[644,1445,1446],{"class":658},"| ",[644,1448,1449],{"class":785},"where",[644,1451,1452],{"class":658}," audit.action == ",[644,1454,853],{"class":654},[644,1456,877],{"class":677},[644,1458,1459],{"class":654},"\"\n",[644,1461,1462,1464,1467,1470,1473,1476,1479,1482,1485],{"class":646,"line":705},[644,1463,1446],{"class":658},[644,1465,1466],{"class":785},"summarize",[644,1468,1469],{"class":726}," count()",[644,1471,1472],{"class":785}," by",[644,1474,1475],{"class":658}," audit.outcome, ",[644,1477,1478],{"class":726},"bin",[644,1480,1481],{"class":658},"(_time, ",[644,1483,1484],{"class":785},"1h",[644,1486,1487],{"class":658},")\n",[634,1489,1492],{"className":1422,"code":1490,"filename":1491,"language":1425,"meta":640,"style":640},"['audit']\n| where audit.outcome == \"denied\"\n| summarize count() by audit.actor.id, audit.action\n| order by count_ desc\n","Output — denials by actor",[613,1493,1494,1506,1522,1535],{"__ignoreMap":640},[644,1495,1496,1498,1500,1502,1504],{"class":646,"line":647},[644,1497,1432],{"class":658},[644,1499,733],{"class":654},[644,1501,857],{"class":677},[644,1503,733],{"class":654},[644,1505,1441],{"class":658},[644,1507,1508,1510,1512,1515,1517,1520],{"class":646,"line":684},[644,1509,1446],{"class":658},[644,1511,1449],{"class":785},[644,1513,1514],{"class":658}," audit.outcome == ",[644,1516,853],{"class":654},[644,1518,1519],{"class":677},"denied",[644,1521,1459],{"class":654},[644,1523,1524,1526,1528,1530,1532],{"class":646,"line":705},[644,1525,1446],{"class":658},[644,1527,1466],{"class":785},[644,1529,1469],{"class":726},[644,1531,1472],{"class":785},[644,1533,1534],{"class":658}," audit.actor.id, audit.action\n",[644,1536,1537,1539,1542,1544,1547],{"class":646,"line":712},[644,1538,1446],{"class":658},[644,1540,1541],{"class":785},"order",[644,1543,1472],{"class":785},[644,1545,1546],{"class":658}," count_ ",[644,1548,1549],{"class":785},"desc\n",[609,1551,1552],{},"Splitting datasets means the audit dataset can have a longer retention (7y), tighter access controls, and a separate billing line, without touching the rest of your pipeline.",[626,1554,1556],{"id":1555},"audit-logs-in-postgres","Audit logs in Postgres",[631,1558,1559,1812],{},[634,1560,1562],{"className":636,"code":1561,"filename":638,"language":639,"meta":640,"style":640},"import { auditOnly } from 'evlog'\nimport type { DrainContext } from 'evlog'\n\nconst postgresAudit = async (ctx: DrainContext) => {\n  await db.insert(auditEvents).values({\n    id: ctx.event.audit!.idempotencyKey,\n    timestamp: new Date(ctx.event.timestamp),\n    payload: ctx.event,\n  }).onConflictDoNothing()\n}\n\nnitro.hooks.hook('evlog:drain', auditOnly(postgresAudit, { await: true }))\n",[613,1563,1564,1582,1604,1608,1641,1671,1697,1727,1743,1759,1765,1770],{"__ignoreMap":640},[644,1565,1566,1568,1570,1572,1574,1576,1578,1580],{"class":646,"line":647},[644,1567,651],{"class":650},[644,1569,655],{"class":654},[644,1571,659],{"class":658},[644,1573,668],{"class":654},[644,1575,671],{"class":650},[644,1577,674],{"class":654},[644,1579,678],{"class":677},[644,1581,681],{"class":654},[644,1583,1584,1586,1589,1591,1594,1596,1598,1600,1602],{"class":646,"line":684},[644,1585,651],{"class":650},[644,1587,1588],{"class":650}," type",[644,1590,655],{"class":654},[644,1592,1593],{"class":658}," DrainContext",[644,1595,668],{"class":654},[644,1597,671],{"class":650},[644,1599,674],{"class":654},[644,1601,678],{"class":677},[644,1603,681],{"class":654},[644,1605,1606],{"class":646,"line":705},[644,1607,709],{"emptyLinePlaceholder":708},[644,1609,1610,1613,1616,1619,1622,1625,1629,1631,1633,1635,1638],{"class":646,"line":712},[644,1611,1612],{"class":856},"const",[644,1614,1615],{"class":658}," postgresAudit ",[644,1617,1618],{"class":654},"=",[644,1620,1621],{"class":856}," async",[644,1623,1624],{"class":654}," (",[644,1626,1628],{"class":1627},"sHdIc","ctx",[644,1630,768],{"class":654},[644,1632,1593],{"class":867},[644,1634,791],{"class":654},[644,1636,1637],{"class":856}," =>",[644,1639,1640],{"class":654}," {\n",[644,1642,1643,1646,1649,1651,1654,1656,1659,1661,1663,1666,1668],{"class":646,"line":748},[644,1644,1645],{"class":650},"  await",[644,1647,1648],{"class":658}," db",[644,1650,718],{"class":654},[644,1652,1653],{"class":726},"insert",[644,1655,730],{"class":764},[644,1657,1658],{"class":658},"auditEvents",[644,1660,791],{"class":764},[644,1662,718],{"class":654},[644,1664,1665],{"class":726},"values",[644,1667,730],{"class":764},[644,1669,1670],{"class":654},"{\n",[644,1672,1673,1676,1678,1681,1683,1686,1688,1690,1693,1695],{"class":646,"line":817},[644,1674,1675],{"class":764},"    id",[644,1677,768],{"class":654},[644,1679,1680],{"class":658}," ctx",[644,1682,718],{"class":654},[644,1684,1685],{"class":658},"event",[644,1687,718],{"class":654},[644,1689,857],{"class":658},[644,1691,1692],{"class":654},"!.",[644,1694,1007],{"class":658},[644,1696,814],{"class":654},[644,1698,1699,1702,1704,1707,1710,1712,1714,1716,1718,1720,1723,1725],{"class":646,"line":835},[644,1700,1701],{"class":764},"    timestamp",[644,1703,768],{"class":654},[644,1705,1706],{"class":654}," new",[644,1708,1709],{"class":726}," Date",[644,1711,730],{"class":764},[644,1713,1628],{"class":658},[644,1715,718],{"class":654},[644,1717,1685],{"class":658},[644,1719,718],{"class":654},[644,1721,1722],{"class":658},"timestamp",[644,1724,791],{"class":764},[644,1726,814],{"class":654},[644,1728,1730,1733,1735,1737,1739,1741],{"class":646,"line":1729},8,[644,1731,1732],{"class":764},"    payload",[644,1734,768],{"class":654},[644,1736,1680],{"class":658},[644,1738,718],{"class":654},[644,1740,1685],{"class":658},[644,1742,814],{"class":654},[644,1744,1746,1749,1751,1753,1756],{"class":646,"line":1745},9,[644,1747,1748],{"class":654},"  }",[644,1750,791],{"class":764},[644,1752,718],{"class":654},[644,1754,1755],{"class":726},"onConflictDoNothing",[644,1757,1758],{"class":764},"()\n",[644,1760,1762],{"class":646,"line":1761},10,[644,1763,1764],{"class":654},"}\n",[644,1766,1768],{"class":646,"line":1767},11,[644,1769,709],{"emptyLinePlaceholder":708},[644,1771,1773,1775,1777,1779,1781,1783,1785,1787,1789,1791,1793,1795,1798,1800,1802,1804,1806,1808,1810],{"class":646,"line":1772},12,[644,1774,715],{"class":658},[644,1776,718],{"class":654},[644,1778,721],{"class":658},[644,1780,718],{"class":654},[644,1782,727],{"class":726},[644,1784,730],{"class":658},[644,1786,733],{"class":654},[644,1788,736],{"class":677},[644,1790,733],{"class":654},[644,1792,662],{"class":654},[644,1794,659],{"class":726},[644,1796,1797],{"class":658},"(postgresAudit",[644,1799,662],{"class":654},[644,1801,655],{"class":654},[644,1803,823],{"class":764},[644,1805,768],{"class":654},[644,1807,829],{"class":828},[644,1809,668],{"class":654},[644,1811,838],{"class":658},[634,1813,1818],{"className":1814,"code":1815,"filename":1816,"language":1817,"meta":640,"style":640},"language-sql shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","SELECT id, timestamp, payload->'audit'->>'action' AS action,\n       payload->'audit'->>'outcome' AS outcome\nFROM audit_events\nWHERE id = 'ak_8f3c4b2a1e5d6f7c';\n\n--          id          |       timestamp       |     action      | outcome\n-- ---------------------+-----------------------+-----------------+---------\n--  ak_8f3c4b2a1e5d6f7c | 2026-04-24 10:23:45.6 | invoice.refund  | success\n","Output — audit_events row","sql",[613,1819,1820,1859,1885,1893,1912,1916,1922,1927],{"__ignoreMap":640},[644,1821,1822,1825,1828,1830,1833,1836,1838,1840,1842,1845,1847,1849,1851,1854,1857],{"class":646,"line":647},[644,1823,1824],{"class":785},"SELECT",[644,1826,1827],{"class":658}," id, ",[644,1829,1722],{"class":856},[644,1831,1832],{"class":658},", payload",[644,1834,1835],{"class":654},"->",[644,1837,733],{"class":654},[644,1839,857],{"class":677},[644,1841,733],{"class":654},[644,1843,1844],{"class":654},"->>",[644,1846,733],{"class":654},[644,1848,868],{"class":677},[644,1850,733],{"class":654},[644,1852,1853],{"class":785}," AS",[644,1855,1856],{"class":785}," action",[644,1858,814],{"class":658},[644,1860,1861,1864,1866,1868,1870,1872,1874,1876,1878,1880,1882],{"class":646,"line":684},[644,1862,1863],{"class":658},"       payload",[644,1865,1835],{"class":654},[644,1867,733],{"class":654},[644,1869,857],{"class":677},[644,1871,733],{"class":654},[644,1873,1844],{"class":654},[644,1875,733],{"class":654},[644,1877,975],{"class":677},[644,1879,733],{"class":654},[644,1881,1853],{"class":785},[644,1883,1884],{"class":658}," outcome\n",[644,1886,1887,1890],{"class":646,"line":705},[644,1888,1889],{"class":785},"FROM",[644,1891,1892],{"class":658}," audit_events\n",[644,1894,1895,1898,1901,1903,1905,1907,1909],{"class":646,"line":712},[644,1896,1897],{"class":785},"WHERE",[644,1899,1900],{"class":658}," id ",[644,1902,1618],{"class":654},[644,1904,674],{"class":654},[644,1906,1016],{"class":677},[644,1908,733],{"class":654},[644,1910,1911],{"class":658},";\n",[644,1913,1914],{"class":646,"line":748},[644,1915,709],{"emptyLinePlaceholder":708},[644,1917,1918],{"class":646,"line":817},[644,1919,1921],{"class":1920},"sHwdD","--          id          |       timestamp       |     action      | outcome\n",[644,1923,1924],{"class":646,"line":835},[644,1925,1926],{"class":1920},"-- ---------------------+-----------------------+-----------------+---------\n",[644,1928,1929],{"class":646,"line":1729},[644,1930,1931],{"class":1920},"--  ak_8f3c4b2a1e5d6f7c | 2026-04-24 10:23:45.6 | invoice.refund  | success\n",[609,1933,1934,1935,1937,1938,1941],{},"The deterministic ",[613,1936,1007],{}," makes retries safe: duplicate inserts collapse via ",[613,1939,1940],{},"ON CONFLICT DO NOTHING",". Without it, a transient network blip during a retry would create a duplicate audit row, which is exactly what you don't want.",[626,1943,1945],{"id":1944},"test-what-you-recorded","Test what you recorded",[609,1947,1948,1951,1952,616,1955,1958,1959,768],{},[613,1949,1950],{},"mockAudit()"," captures every audit event on emit, from standalone ",[613,1953,1954],{},"audit()",[613,1956,1957],{},"log.audit()",", and ",[613,1960,1961],{},"log.set({ audit })",[634,1963,1965],{"className":636,"code":1964,"language":639,"meta":640,"style":640},"import { mockAudit } from 'evlog'\n\nit('refunds the invoice and records an audit', async () => {\n  const captured = mockAudit()\n\n  await refundInvoice({ id: 'inv_889' }, { actor: { type: 'user', id: 'u1' } })\n\n  captured.assertAudit({\n    action: 'invoice.refund',\n    target: { type: 'invoice', id: 'inv_889' },\n    outcome: 'success',\n  })\n\n  captured.restore()\n})\n",[613,1966,1967,1986,1990,2015,2030,2034,2097,2101,2115,2130,2163,2178,2184,2189,2201],{"__ignoreMap":640},[644,1968,1969,1971,1973,1976,1978,1980,1982,1984],{"class":646,"line":647},[644,1970,651],{"class":650},[644,1972,655],{"class":654},[644,1974,1975],{"class":658}," mockAudit",[644,1977,668],{"class":654},[644,1979,671],{"class":650},[644,1981,674],{"class":654},[644,1983,678],{"class":677},[644,1985,681],{"class":654},[644,1987,1988],{"class":646,"line":684},[644,1989,709],{"emptyLinePlaceholder":708},[644,1991,1992,1995,1997,1999,2002,2004,2006,2008,2011,2013],{"class":646,"line":705},[644,1993,1994],{"class":726},"it",[644,1996,730],{"class":658},[644,1998,733],{"class":654},[644,2000,2001],{"class":677},"refunds the invoice and records an audit",[644,2003,733],{"class":654},[644,2005,662],{"class":654},[644,2007,1621],{"class":856},[644,2009,2010],{"class":654}," ()",[644,2012,1637],{"class":856},[644,2014,1640],{"class":654},[644,2016,2017,2020,2023,2026,2028],{"class":646,"line":712},[644,2018,2019],{"class":856},"  const",[644,2021,2022],{"class":658}," captured",[644,2024,2025],{"class":654}," =",[644,2027,1975],{"class":726},[644,2029,1758],{"class":764},[644,2031,2032],{"class":646,"line":748},[644,2033,709],{"emptyLinePlaceholder":708},[644,2035,2036,2038,2041,2043,2045,2048,2050,2052,2054,2056,2059,2061,2064,2066,2068,2070,2072,2074,2076,2078,2080,2082,2084,2086,2089,2091,2093,2095],{"class":646,"line":817},[644,2037,1645],{"class":650},[644,2039,2040],{"class":726}," refundInvoice",[644,2042,730],{"class":764},[644,2044,761],{"class":654},[644,2046,2047],{"class":764}," id",[644,2049,768],{"class":654},[644,2051,674],{"class":654},[644,2053,966],{"class":677},[644,2055,733],{"class":654},[644,2057,2058],{"class":654}," },",[644,2060,655],{"class":654},[644,2062,2063],{"class":764}," actor",[644,2065,768],{"class":654},[644,2067,655],{"class":654},[644,2069,1588],{"class":764},[644,2071,768],{"class":654},[644,2073,674],{"class":654},[644,2075,904],{"class":677},[644,2077,733],{"class":654},[644,2079,662],{"class":654},[644,2081,2047],{"class":764},[644,2083,768],{"class":654},[644,2085,674],{"class":654},[644,2087,2088],{"class":677},"u1",[644,2090,733],{"class":654},[644,2092,668],{"class":654},[644,2094,668],{"class":654},[644,2096,1487],{"class":764},[644,2098,2099],{"class":646,"line":835},[644,2100,709],{"emptyLinePlaceholder":708},[644,2102,2103,2106,2108,2111,2113],{"class":646,"line":1729},[644,2104,2105],{"class":658},"  captured",[644,2107,718],{"class":654},[644,2109,2110],{"class":726},"assertAudit",[644,2112,730],{"class":764},[644,2114,1670],{"class":654},[644,2116,2117,2120,2122,2124,2126,2128],{"class":646,"line":1745},[644,2118,2119],{"class":764},"    action",[644,2121,768],{"class":654},[644,2123,674],{"class":654},[644,2125,877],{"class":677},[644,2127,733],{"class":654},[644,2129,814],{"class":654},[644,2131,2132,2135,2137,2139,2141,2143,2145,2147,2149,2151,2153,2155,2157,2159,2161],{"class":646,"line":1761},[644,2133,2134],{"class":764},"    target",[644,2136,768],{"class":654},[644,2138,655],{"class":654},[644,2140,1588],{"class":764},[644,2142,768],{"class":654},[644,2144,674],{"class":654},[644,2146,949],{"class":677},[644,2148,733],{"class":654},[644,2150,662],{"class":654},[644,2152,2047],{"class":764},[644,2154,768],{"class":654},[644,2156,674],{"class":654},[644,2158,966],{"class":677},[644,2160,733],{"class":654},[644,2162,832],{"class":654},[644,2164,2165,2168,2170,2172,2174,2176],{"class":646,"line":1767},[644,2166,2167],{"class":764},"    outcome",[644,2169,768],{"class":654},[644,2171,674],{"class":654},[644,2173,984],{"class":677},[644,2175,733],{"class":654},[644,2177,814],{"class":654},[644,2179,2180,2182],{"class":646,"line":1772},[644,2181,1748],{"class":654},[644,2183,1487],{"class":764},[644,2185,2187],{"class":646,"line":2186},13,[644,2188,709],{"emptyLinePlaceholder":708},[644,2190,2192,2194,2196,2199],{"class":646,"line":2191},14,[644,2193,2105],{"class":658},[644,2195,718],{"class":654},[644,2197,2198],{"class":726},"restore",[644,2200,1758],{"class":764},[644,2202,2204,2206],{"class":646,"line":2203},15,[644,2205,1411],{"class":654},[644,2207,1487],{"class":658},[609,2209,2210,2211,2214,2215,2218,2219,718],{},"Prefer ",[613,2212,2213],{},"assertAudit()"," when a missing audit should fail the test with a readable message. 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