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Each recipe composes the same primitives (",[592,593,594],"code",{},"auditOnly",", ",[592,597,598],{},"signed",", optional ",[592,601,602],{},"await: true",") over different drains.",[605,606,608],"h2",{"id":607},"audit-logs-on-disk","Audit logs on disk",[610,611,612,818],"code-group",{},[613,614,620],"pre",{"className":615,"code":616,"filename":617,"language":618,"meta":619,"style":619},"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","",[592,621,622,661,682,689,725,794,812],{"__ignoreMap":619},[623,624,627,631,635,639,642,645,648,651,654,658],"span",{"class":625,"line":626},"line",1,[623,628,630],{"class":629},"s7zQu","import",[623,632,634],{"class":633},"sMK4o"," {",[623,636,638],{"class":637},"sTEyZ"," auditOnly",[623,640,641],{"class":633},",",[623,643,644],{"class":637}," signed",[623,646,647],{"class":633}," }",[623,649,650],{"class":629}," from",[623,652,653],{"class":633}," '",[623,655,657],{"class":656},"sfazB","evlog",[623,659,660],{"class":633},"'\n",[623,662,664,666,668,671,673,675,677,680],{"class":625,"line":663},2,[623,665,630],{"class":629},[623,667,634],{"class":633},[623,669,670],{"class":637}," createFsDrain",[623,672,647],{"class":633},[623,674,650],{"class":629},[623,676,653],{"class":633},[623,678,679],{"class":656},"evlog\u002Ffs",[623,681,660],{"class":633},[623,683,685],{"class":625,"line":684},3,[623,686,688],{"emptyLinePlaceholder":687},true,"\n",[623,690,692,695,698,701,703,707,710,713,716,718,720,722],{"class":625,"line":691},4,[623,693,694],{"class":637},"nitro",[623,696,697],{"class":633},".",[623,699,700],{"class":637},"hooks",[623,702,697],{"class":633},[623,704,706],{"class":705},"s2Zo4","hook",[623,708,709],{"class":637},"(",[623,711,712],{"class":633},"'",[623,714,715],{"class":656},"evlog:drain",[623,717,712],{"class":633},[623,719,641],{"class":633},[623,721,638],{"class":705},[623,723,724],{"class":637},"(\n",[623,726,728,731,733,736,738,741,745,748,750,753,755,757,760,762,766,768,771,773,775,778,780,782,785,787,789,791],{"class":625,"line":727},5,[623,729,730],{"class":705},"  signed",[623,732,709],{"class":637},[623,734,735],{"class":705},"createFsDrain",[623,737,709],{"class":637},[623,739,740],{"class":633},"{",[623,742,744],{"class":743},"swJcz"," dir",[623,746,747],{"class":633},":",[623,749,653],{"class":633},[623,751,752],{"class":656},".audit",[623,754,712],{"class":633},[623,756,641],{"class":633},[623,758,759],{"class":743}," maxFiles",[623,761,747],{"class":633},[623,763,765],{"class":764},"sbssI"," 30",[623,767,647],{"class":633},[623,769,770],{"class":637},")",[623,772,641],{"class":633},[623,774,634],{"class":633},[623,776,777],{"class":743}," strategy",[623,779,747],{"class":633},[623,781,653],{"class":633},[623,783,784],{"class":656},"hash-chain",[623,786,712],{"class":633},[623,788,647],{"class":633},[623,790,770],{"class":637},[623,792,793],{"class":633},",\n",[623,795,797,800,803,805,809],{"class":625,"line":796},6,[623,798,799],{"class":633},"  {",[623,801,802],{"class":743}," await",[623,804,747],{"class":633},[623,806,808],{"class":807},"sfNiH"," true",[623,810,811],{"class":633}," },\n",[623,813,815],{"class":625,"line":814},7,[623,816,817],{"class":637},"))\n",[613,819,824],{"className":820,"code":821,"filename":822,"language":823,"meta":619,"style":619},"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",[592,825,826,1029],{"__ignoreMap":619},[623,827,828,830,833,837,839,842,844,848,850,852,854,857,859,861,863,866,868,870,872,875,877,879,881,884,886,888,890,893,895,897,899,902,904,907,909,912,914,916,918,920,922,924,926,929,931,933,935,937,939,941,943,946,948,950,952,955,957,959,961,964,966,968,970,973,975,977,980,982,984,987,989,991,993,996,998,1000,1002,1005,1007,1010,1012,1015,1017,1019,1021,1024,1026],{"class":625,"line":626},[623,829,740],{"class":633},[623,831,832],{"class":633},"\"",[623,834,836],{"class":835},"spNyl","audit",[623,838,832],{"class":633},[623,840,841],{"class":633},":{",[623,843,832],{"class":633},[623,845,847],{"class":846},"sBMFI","action",[623,849,832],{"class":633},[623,851,747],{"class":633},[623,853,832],{"class":633},[623,855,856],{"class":656},"invoice.refund",[623,858,832],{"class":633},[623,860,641],{"class":633},[623,862,832],{"class":633},[623,864,865],{"class":846},"actor",[623,867,832],{"class":633},[623,869,841],{"class":633},[623,871,832],{"class":633},[623,873,874],{"class":764},"type",[623,876,832],{"class":633},[623,878,747],{"class":633},[623,880,832],{"class":633},[623,882,883],{"class":656},"user",[623,885,832],{"class":633},[623,887,641],{"class":633},[623,889,832],{"class":633},[623,891,892],{"class":764},"id",[623,894,832],{"class":633},[623,896,747],{"class":633},[623,898,832],{"class":633},[623,900,901],{"class":656},"usr_42",[623,903,832],{"class":633},[623,905,906],{"class":633},"},",[623,908,832],{"class":633},[623,910,911],{"class":846},"target",[623,913,832],{"class":633},[623,915,841],{"class":633},[623,917,832],{"class":633},[623,919,874],{"class":764},[623,921,832],{"class":633},[623,923,747],{"class":633},[623,925,832],{"class":633},[623,927,928],{"class":656},"invoice",[623,930,832],{"class":633},[623,932,641],{"class":633},[623,934,832],{"class":633},[623,936,892],{"class":764},[623,938,832],{"class":633},[623,940,747],{"class":633},[623,942,832],{"class":633},[623,944,945],{"class":656},"inv_889",[623,947,832],{"class":633},[623,949,906],{"class":633},[623,951,832],{"class":633},[623,953,954],{"class":846},"outcome",[623,956,832],{"class":633},[623,958,747],{"class":633},[623,960,832],{"class":633},[623,962,963],{"class":656},"success",[623,965,832],{"class":633},[623,967,641],{"class":633},[623,969,832],{"class":633},[623,971,972],{"class":846},"version",[623,974,832],{"class":633},[623,976,747],{"class":633},[623,978,979],{"class":764},"1",[623,981,641],{"class":633},[623,983,832],{"class":633},[623,985,986],{"class":846},"idempotencyKey",[623,988,832],{"class":633},[623,990,747],{"class":633},[623,992,832],{"class":633},[623,994,995],{"class":656},"ak_8f3c4b2a1e5d6f7c",[623,997,832],{"class":633},[623,999,641],{"class":633},[623,1001,832],{"class":633},[623,1003,1004],{"class":846},"prevHash",[623,1006,832],{"class":633},[623,1008,1009],{"class":633},":null,",[623,1011,832],{"class":633},[623,1013,1014],{"class":846},"hash",[623,1016,832],{"class":633},[623,1018,747],{"class":633},[623,1020,832],{"class":633},[623,1022,1023],{"class":656},"3f2c8e1a...",[623,1025,832],{"class":633},[623,1027,1028],{"class":633},"}}\n",[623,1030,1031,1033,1035,1037,1039,1041,1043,1045,1047,1049,1051,1054,1056,1058,1060,1062,1064,1066,1068,1070,1072,1074,1076,1078,1080,1082,1084,1086,1088,1090,1092,1094,1096,1098,1100,1102,1104,1106,1108,1110,1112,1114,1116,1118,1120,1122,1124,1126,1128,1130,1132,1135,1137,1139,1141,1143,1145,1147,1149,1151,1153,1155,1157,1159,1161,1163,1165,1167,1169,1171,1173,1175,1177,1180,1182,1184,1186,1188,1190,1192,1194,1196,1198,1200,1202,1204,1206,1208,1210,1213,1215],{"class":625,"line":663},[623,1032,740],{"class":633},[623,1034,832],{"class":633},[623,1036,836],{"class":835},[623,1038,832],{"class":633},[623,1040,841],{"class":633},[623,1042,832],{"class":633},[623,1044,847],{"class":846},[623,1046,832],{"class":633},[623,1048,747],{"class":633},[623,1050,832],{"class":633},[623,1052,1053],{"class":656},"user.update",[623,1055,832],{"class":633},[623,1057,641],{"class":633},[623,1059,832],{"class":633},[623,1061,865],{"class":846},[623,1063,832],{"class":633},[623,1065,841],{"class":633},[623,1067,832],{"class":633},[623,1069,874],{"class":764},[623,1071,832],{"class":633},[623,1073,747],{"class":633},[623,1075,832],{"class":633},[623,1077,883],{"class":656},[623,1079,832],{"class":633},[623,1081,641],{"class":633},[623,1083,832],{"class":633},[623,1085,892],{"class":764},[623,1087,832],{"class":633},[623,1089,747],{"class":633},[623,1091,832],{"class":633},[623,1093,901],{"class":656},[623,1095,832],{"class":633},[623,1097,906],{"class":633},[623,1099,832],{"class":633},[623,1101,911],{"class":846},[623,1103,832],{"class":633},[623,1105,841],{"class":633},[623,1107,832],{"class":633},[623,1109,874],{"class":764},[623,1111,832],{"class":633},[623,1113,747],{"class":633},[623,1115,832],{"class":633},[623,1117,883],{"class":656},[623,1119,832],{"class":633},[623,1121,641],{"class":633},[623,1123,832],{"class":633},[623,1125,892],{"class":764},[623,1127,832],{"class":633},[623,1129,747],{"class":633},[623,1131,832],{"class":633},[623,1133,1134],{"class":656},"usr_99",[623,1136,832],{"class":633},[623,1138,906],{"class":633},[623,1140,832],{"class":633},[623,1142,954],{"class":846},[623,1144,832],{"class":633},[623,1146,747],{"class":633},[623,1148,832],{"class":633},[623,1150,963],{"class":656},[623,1152,832],{"class":633},[623,1154,641],{"class":633},[623,1156,832],{"class":633},[623,1158,972],{"class":846},[623,1160,832],{"class":633},[623,1162,747],{"class":633},[623,1164,979],{"class":764},[623,1166,641],{"class":633},[623,1168,832],{"class":633},[623,1170,986],{"class":846},[623,1172,832],{"class":633},[623,1174,747],{"class":633},[623,1176,832],{"class":633},[623,1178,1179],{"class":656},"ak_5e7d8f9a0b1c2d3e",[623,1181,832],{"class":633},[623,1183,641],{"class":633},[623,1185,832],{"class":633},[623,1187,1004],{"class":846},[623,1189,832],{"class":633},[623,1191,747],{"class":633},[623,1193,832],{"class":633},[623,1195,1023],{"class":656},[623,1197,832],{"class":633},[623,1199,641],{"class":633},[623,1201,832],{"class":633},[623,1203,1014],{"class":846},[623,1205,832],{"class":633},[623,1207,747],{"class":633},[623,1209,832],{"class":633},[623,1211,1212],{"class":656},"9a1b4d7c...",[623,1214,832],{"class":633},[623,1216,1028],{"class":633},[588,1218,1219,1220,1222,1223,1225],{},"Each line's ",[592,1221,1004],{}," matches the previous line's ",[592,1224,1014],{},". Tampering with any row breaks the chain forward of that point, and a verifier replays the hashes and reports the first mismatch.",[605,1227,1229],{"id":1228},"audit-logs-to-a-dedicated-axiom-dataset","Audit logs to a dedicated Axiom dataset",[610,1231,1232,1399,1467],{},[613,1233,1235],{"className":615,"code":1234,"filename":617,"language":618,"meta":619,"style":619},"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",[592,1236,1237,1255,1275,1279,1323,1349,1395],{"__ignoreMap":619},[623,1238,1239,1241,1243,1245,1247,1249,1251,1253],{"class":625,"line":626},[623,1240,630],{"class":629},[623,1242,634],{"class":633},[623,1244,638],{"class":637},[623,1246,647],{"class":633},[623,1248,650],{"class":629},[623,1250,653],{"class":633},[623,1252,657],{"class":656},[623,1254,660],{"class":633},[623,1256,1257,1259,1261,1264,1266,1268,1270,1273],{"class":625,"line":663},[623,1258,630],{"class":629},[623,1260,634],{"class":633},[623,1262,1263],{"class":637}," createAxiomDrain",[623,1265,647],{"class":633},[623,1267,650],{"class":629},[623,1269,653],{"class":633},[623,1271,1272],{"class":656},"evlog\u002Faxiom",[623,1274,660],{"class":633},[623,1276,1277],{"class":625,"line":684},[623,1278,688],{"emptyLinePlaceholder":687},[623,1280,1281,1283,1285,1287,1289,1291,1293,1295,1297,1299,1301,1303,1305,1307,1310,1312,1314,1317,1319,1321],{"class":625,"line":691},[623,1282,694],{"class":637},[623,1284,697],{"class":633},[623,1286,700],{"class":637},[623,1288,697],{"class":633},[623,1290,706],{"class":705},[623,1292,709],{"class":637},[623,1294,712],{"class":633},[623,1296,715],{"class":656},[623,1298,712],{"class":633},[623,1300,641],{"class":633},[623,1302,1263],{"class":705},[623,1304,709],{"class":637},[623,1306,740],{"class":633},[623,1308,1309],{"class":743}," dataset",[623,1311,747],{"class":633},[623,1313,653],{"class":633},[623,1315,1316],{"class":656},"logs",[623,1318,712],{"class":633},[623,1320,647],{"class":633},[623,1322,817],{"class":637},[623,1324,1325,1327,1329,1331,1333,1335,1337,1339,1341,1343,1345,1347],{"class":625,"line":727},[623,1326,694],{"class":637},[623,1328,697],{"class":633},[623,1330,700],{"class":637},[623,1332,697],{"class":633},[623,1334,706],{"class":705},[623,1336,709],{"class":637},[623,1338,712],{"class":633},[623,1340,715],{"class":656},[623,1342,712],{"class":633},[623,1344,641],{"class":633},[623,1346,638],{"class":705},[623,1348,724],{"class":637},[623,1350,1351,1354,1356,1358,1360,1362,1364,1366,1368,1370,1373,1375,1378,1380,1383,1385,1388,1391,1393],{"class":625,"line":796},[623,1352,1353],{"class":705},"  createAxiomDrain",[623,1355,709],{"class":637},[623,1357,740],{"class":633},[623,1359,1309],{"class":743},[623,1361,747],{"class":633},[623,1363,653],{"class":633},[623,1365,836],{"class":656},[623,1367,712],{"class":633},[623,1369,641],{"class":633},[623,1371,1372],{"class":743}," apiKey",[623,1374,747],{"class":633},[623,1376,1377],{"class":637}," process",[623,1379,697],{"class":633},[623,1381,1382],{"class":637},"env",[623,1384,697],{"class":633},[623,1386,1387],{"class":637},"AXIOM_AUDIT_API_KEY ",[623,1389,1390],{"class":633},"}",[623,1392,770],{"class":637},[623,1394,793],{"class":633},[623,1396,1397],{"class":625,"line":814},[623,1398,817],{"class":637},[613,1400,1405],{"className":1401,"code":1402,"filename":1403,"language":1404,"meta":619,"style":619},"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",[592,1406,1407,1421,1439],{"__ignoreMap":619},[623,1408,1409,1412,1414,1416,1418],{"class":625,"line":626},[623,1410,1411],{"class":637},"[",[623,1413,712],{"class":633},[623,1415,836],{"class":656},[623,1417,712],{"class":633},[623,1419,1420],{"class":637},"]\n",[623,1422,1423,1426,1429,1432,1434,1436],{"class":625,"line":663},[623,1424,1425],{"class":637},"| ",[623,1427,1428],{"class":764},"where",[623,1430,1431],{"class":637}," audit.action == ",[623,1433,832],{"class":633},[623,1435,856],{"class":656},[623,1437,1438],{"class":633},"\"\n",[623,1440,1441,1443,1446,1449,1452,1455,1458,1461,1464],{"class":625,"line":684},[623,1442,1425],{"class":637},[623,1444,1445],{"class":764},"summarize",[623,1447,1448],{"class":705}," count()",[623,1450,1451],{"class":764}," by",[623,1453,1454],{"class":637}," audit.outcome, ",[623,1456,1457],{"class":705},"bin",[623,1459,1460],{"class":637},"(_time, ",[623,1462,1463],{"class":764},"1h",[623,1465,1466],{"class":637},")\n",[613,1468,1471],{"className":1401,"code":1469,"filename":1470,"language":1404,"meta":619,"style":619},"['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",[592,1472,1473,1485,1501,1514],{"__ignoreMap":619},[623,1474,1475,1477,1479,1481,1483],{"class":625,"line":626},[623,1476,1411],{"class":637},[623,1478,712],{"class":633},[623,1480,836],{"class":656},[623,1482,712],{"class":633},[623,1484,1420],{"class":637},[623,1486,1487,1489,1491,1494,1496,1499],{"class":625,"line":663},[623,1488,1425],{"class":637},[623,1490,1428],{"class":764},[623,1492,1493],{"class":637}," audit.outcome == ",[623,1495,832],{"class":633},[623,1497,1498],{"class":656},"denied",[623,1500,1438],{"class":633},[623,1502,1503,1505,1507,1509,1511],{"class":625,"line":684},[623,1504,1425],{"class":637},[623,1506,1445],{"class":764},[623,1508,1448],{"class":705},[623,1510,1451],{"class":764},[623,1512,1513],{"class":637}," audit.actor.id, audit.action\n",[623,1515,1516,1518,1521,1523,1526],{"class":625,"line":691},[623,1517,1425],{"class":637},[623,1519,1520],{"class":764},"order",[623,1522,1451],{"class":764},[623,1524,1525],{"class":637}," count_ ",[623,1527,1528],{"class":764},"desc\n",[588,1530,1531],{},"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.",[605,1533,1535],{"id":1534},"audit-logs-in-postgres","Audit logs in Postgres",[610,1537,1538,1791],{},[613,1539,1541],{"className":615,"code":1540,"filename":617,"language":618,"meta":619,"style":619},"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",[592,1542,1543,1561,1583,1587,1620,1650,1676,1706,1722,1738,1744,1749],{"__ignoreMap":619},[623,1544,1545,1547,1549,1551,1553,1555,1557,1559],{"class":625,"line":626},[623,1546,630],{"class":629},[623,1548,634],{"class":633},[623,1550,638],{"class":637},[623,1552,647],{"class":633},[623,1554,650],{"class":629},[623,1556,653],{"class":633},[623,1558,657],{"class":656},[623,1560,660],{"class":633},[623,1562,1563,1565,1568,1570,1573,1575,1577,1579,1581],{"class":625,"line":663},[623,1564,630],{"class":629},[623,1566,1567],{"class":629}," type",[623,1569,634],{"class":633},[623,1571,1572],{"class":637}," DrainContext",[623,1574,647],{"class":633},[623,1576,650],{"class":629},[623,1578,653],{"class":633},[623,1580,657],{"class":656},[623,1582,660],{"class":633},[623,1584,1585],{"class":625,"line":684},[623,1586,688],{"emptyLinePlaceholder":687},[623,1588,1589,1592,1595,1598,1601,1604,1608,1610,1612,1614,1617],{"class":625,"line":691},[623,1590,1591],{"class":835},"const",[623,1593,1594],{"class":637}," postgresAudit ",[623,1596,1597],{"class":633},"=",[623,1599,1600],{"class":835}," async",[623,1602,1603],{"class":633}," (",[623,1605,1607],{"class":1606},"sHdIc","ctx",[623,1609,747],{"class":633},[623,1611,1572],{"class":846},[623,1613,770],{"class":633},[623,1615,1616],{"class":835}," =>",[623,1618,1619],{"class":633}," {\n",[623,1621,1622,1625,1628,1630,1633,1635,1638,1640,1642,1645,1647],{"class":625,"line":727},[623,1623,1624],{"class":629},"  await",[623,1626,1627],{"class":637}," db",[623,1629,697],{"class":633},[623,1631,1632],{"class":705},"insert",[623,1634,709],{"class":743},[623,1636,1637],{"class":637},"auditEvents",[623,1639,770],{"class":743},[623,1641,697],{"class":633},[623,1643,1644],{"class":705},"values",[623,1646,709],{"class":743},[623,1648,1649],{"class":633},"{\n",[623,1651,1652,1655,1657,1660,1662,1665,1667,1669,1672,1674],{"class":625,"line":796},[623,1653,1654],{"class":743},"    id",[623,1656,747],{"class":633},[623,1658,1659],{"class":637}," ctx",[623,1661,697],{"class":633},[623,1663,1664],{"class":637},"event",[623,1666,697],{"class":633},[623,1668,836],{"class":637},[623,1670,1671],{"class":633},"!.",[623,1673,986],{"class":637},[623,1675,793],{"class":633},[623,1677,1678,1681,1683,1686,1689,1691,1693,1695,1697,1699,1702,1704],{"class":625,"line":814},[623,1679,1680],{"class":743},"    timestamp",[623,1682,747],{"class":633},[623,1684,1685],{"class":633}," new",[623,1687,1688],{"class":705}," Date",[623,1690,709],{"class":743},[623,1692,1607],{"class":637},[623,1694,697],{"class":633},[623,1696,1664],{"class":637},[623,1698,697],{"class":633},[623,1700,1701],{"class":637},"timestamp",[623,1703,770],{"class":743},[623,1705,793],{"class":633},[623,1707,1709,1712,1714,1716,1718,1720],{"class":625,"line":1708},8,[623,1710,1711],{"class":743},"    payload",[623,1713,747],{"class":633},[623,1715,1659],{"class":637},[623,1717,697],{"class":633},[623,1719,1664],{"class":637},[623,1721,793],{"class":633},[623,1723,1725,1728,1730,1732,1735],{"class":625,"line":1724},9,[623,1726,1727],{"class":633},"  }",[623,1729,770],{"class":743},[623,1731,697],{"class":633},[623,1733,1734],{"class":705},"onConflictDoNothing",[623,1736,1737],{"class":743},"()\n",[623,1739,1741],{"class":625,"line":1740},10,[623,1742,1743],{"class":633},"}\n",[623,1745,1747],{"class":625,"line":1746},11,[623,1748,688],{"emptyLinePlaceholder":687},[623,1750,1752,1754,1756,1758,1760,1762,1764,1766,1768,1770,1772,1774,1777,1779,1781,1783,1785,1787,1789],{"class":625,"line":1751},12,[623,1753,694],{"class":637},[623,1755,697],{"class":633},[623,1757,700],{"class":637},[623,1759,697],{"class":633},[623,1761,706],{"class":705},[623,1763,709],{"class":637},[623,1765,712],{"class":633},[623,1767,715],{"class":656},[623,1769,712],{"class":633},[623,1771,641],{"class":633},[623,1773,638],{"class":705},[623,1775,1776],{"class":637},"(postgresAudit",[623,1778,641],{"class":633},[623,1780,634],{"class":633},[623,1782,802],{"class":743},[623,1784,747],{"class":633},[623,1786,808],{"class":807},[623,1788,647],{"class":633},[623,1790,817],{"class":637},[613,1792,1797],{"className":1793,"code":1794,"filename":1795,"language":1796,"meta":619,"style":619},"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",[592,1798,1799,1838,1864,1872,1891,1895,1901,1906],{"__ignoreMap":619},[623,1800,1801,1804,1807,1809,1812,1815,1817,1819,1821,1824,1826,1828,1830,1833,1836],{"class":625,"line":626},[623,1802,1803],{"class":764},"SELECT",[623,1805,1806],{"class":637}," id, ",[623,1808,1701],{"class":835},[623,1810,1811],{"class":637},", payload",[623,1813,1814],{"class":633},"->",[623,1816,712],{"class":633},[623,1818,836],{"class":656},[623,1820,712],{"class":633},[623,1822,1823],{"class":633},"->>",[623,1825,712],{"class":633},[623,1827,847],{"class":656},[623,1829,712],{"class":633},[623,1831,1832],{"class":764}," AS",[623,1834,1835],{"class":764}," action",[623,1837,793],{"class":637},[623,1839,1840,1843,1845,1847,1849,1851,1853,1855,1857,1859,1861],{"class":625,"line":663},[623,1841,1842],{"class":637},"       payload",[623,1844,1814],{"class":633},[623,1846,712],{"class":633},[623,1848,836],{"class":656},[623,1850,712],{"class":633},[623,1852,1823],{"class":633},[623,1854,712],{"class":633},[623,1856,954],{"class":656},[623,1858,712],{"class":633},[623,1860,1832],{"class":764},[623,1862,1863],{"class":637}," outcome\n",[623,1865,1866,1869],{"class":625,"line":684},[623,1867,1868],{"class":764},"FROM",[623,1870,1871],{"class":637}," audit_events\n",[623,1873,1874,1877,1880,1882,1884,1886,1888],{"class":625,"line":691},[623,1875,1876],{"class":764},"WHERE",[623,1878,1879],{"class":637}," id ",[623,1881,1597],{"class":633},[623,1883,653],{"class":633},[623,1885,995],{"class":656},[623,1887,712],{"class":633},[623,1889,1890],{"class":637},";\n",[623,1892,1893],{"class":625,"line":727},[623,1894,688],{"emptyLinePlaceholder":687},[623,1896,1897],{"class":625,"line":796},[623,1898,1900],{"class":1899},"sHwdD","--          id          |       timestamp       |     action      | outcome\n",[623,1902,1903],{"class":625,"line":814},[623,1904,1905],{"class":1899},"-- ---------------------+-----------------------+-----------------+---------\n",[623,1907,1908],{"class":625,"line":1708},[623,1909,1910],{"class":1899},"--  ak_8f3c4b2a1e5d6f7c | 2026-04-24 10:23:45.6 | invoice.refund  | success\n",[588,1912,1913,1914,1916,1917,1920],{},"The deterministic ",[592,1915,986],{}," makes retries safe: duplicate inserts collapse via ",[592,1918,1919],{},"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.",[605,1922,1924],{"id":1923},"test-what-you-recorded","Test what you recorded",[588,1926,1927,1930,1931,595,1934,1937,1938,747],{},[592,1928,1929],{},"mockAudit()"," captures every audit event on emit, from standalone ",[592,1932,1933],{},"audit()",[592,1935,1936],{},"log.audit()",", and ",[592,1939,1940],{},"log.set({ audit })",[613,1942,1944],{"className":615,"code":1943,"language":618,"meta":619,"style":619},"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",[592,1945,1946,1965,1969,1994,2009,2013,2076,2080,2094,2109,2142,2157,2163,2168,2180],{"__ignoreMap":619},[623,1947,1948,1950,1952,1955,1957,1959,1961,1963],{"class":625,"line":626},[623,1949,630],{"class":629},[623,1951,634],{"class":633},[623,1953,1954],{"class":637}," mockAudit",[623,1956,647],{"class":633},[623,1958,650],{"class":629},[623,1960,653],{"class":633},[623,1962,657],{"class":656},[623,1964,660],{"class":633},[623,1966,1967],{"class":625,"line":663},[623,1968,688],{"emptyLinePlaceholder":687},[623,1970,1971,1974,1976,1978,1981,1983,1985,1987,1990,1992],{"class":625,"line":684},[623,1972,1973],{"class":705},"it",[623,1975,709],{"class":637},[623,1977,712],{"class":633},[623,1979,1980],{"class":656},"refunds the invoice and records an audit",[623,1982,712],{"class":633},[623,1984,641],{"class":633},[623,1986,1600],{"class":835},[623,1988,1989],{"class":633}," ()",[623,1991,1616],{"class":835},[623,1993,1619],{"class":633},[623,1995,1996,1999,2002,2005,2007],{"class":625,"line":691},[623,1997,1998],{"class":835},"  const",[623,2000,2001],{"class":637}," captured",[623,2003,2004],{"class":633}," =",[623,2006,1954],{"class":705},[623,2008,1737],{"class":743},[623,2010,2011],{"class":625,"line":727},[623,2012,688],{"emptyLinePlaceholder":687},[623,2014,2015,2017,2020,2022,2024,2027,2029,2031,2033,2035,2038,2040,2043,2045,2047,2049,2051,2053,2055,2057,2059,2061,2063,2065,2068,2070,2072,2074],{"class":625,"line":796},[623,2016,1624],{"class":629},[623,2018,2019],{"class":705}," refundInvoice",[623,2021,709],{"class":743},[623,2023,740],{"class":633},[623,2025,2026],{"class":743}," id",[623,2028,747],{"class":633},[623,2030,653],{"class":633},[623,2032,945],{"class":656},[623,2034,712],{"class":633},[623,2036,2037],{"class":633}," },",[623,2039,634],{"class":633},[623,2041,2042],{"class":743}," actor",[623,2044,747],{"class":633},[623,2046,634],{"class":633},[623,2048,1567],{"class":743},[623,2050,747],{"class":633},[623,2052,653],{"class":633},[623,2054,883],{"class":656},[623,2056,712],{"class":633},[623,2058,641],{"class":633},[623,2060,2026],{"class":743},[623,2062,747],{"class":633},[623,2064,653],{"class":633},[623,2066,2067],{"class":656},"u1",[623,2069,712],{"class":633},[623,2071,647],{"class":633},[623,2073,647],{"class":633},[623,2075,1466],{"class":743},[623,2077,2078],{"class":625,"line":814},[623,2079,688],{"emptyLinePlaceholder":687},[623,2081,2082,2085,2087,2090,2092],{"class":625,"line":1708},[623,2083,2084],{"class":637},"  captured",[623,2086,697],{"class":633},[623,2088,2089],{"class":705},"assertAudit",[623,2091,709],{"class":743},[623,2093,1649],{"class":633},[623,2095,2096,2099,2101,2103,2105,2107],{"class":625,"line":1724},[623,2097,2098],{"class":743},"    action",[623,2100,747],{"class":633},[623,2102,653],{"class":633},[623,2104,856],{"class":656},[623,2106,712],{"class":633},[623,2108,793],{"class":633},[623,2110,2111,2114,2116,2118,2120,2122,2124,2126,2128,2130,2132,2134,2136,2138,2140],{"class":625,"line":1740},[623,2112,2113],{"class":743},"    target",[623,2115,747],{"class":633},[623,2117,634],{"class":633},[623,2119,1567],{"class":743},[623,2121,747],{"class":633},[623,2123,653],{"class":633},[623,2125,928],{"class":656},[623,2127,712],{"class":633},[623,2129,641],{"class":633},[623,2131,2026],{"class":743},[623,2133,747],{"class":633},[623,2135,653],{"class":633},[623,2137,945],{"class":656},[623,2139,712],{"class":633},[623,2141,811],{"class":633},[623,2143,2144,2147,2149,2151,2153,2155],{"class":625,"line":1746},[623,2145,2146],{"class":743},"    outcome",[623,2148,747],{"class":633},[623,2150,653],{"class":633},[623,2152,963],{"class":656},[623,2154,712],{"class":633},[623,2156,793],{"class":633},[623,2158,2159,2161],{"class":625,"line":1751},[623,2160,1727],{"class":633},[623,2162,1466],{"class":743},[623,2164,2166],{"class":625,"line":2165},13,[623,2167,688],{"emptyLinePlaceholder":687},[623,2169,2171,2173,2175,2178],{"class":625,"line":2170},14,[623,2172,2084],{"class":637},[623,2174,697],{"class":633},[623,2176,2177],{"class":705},"restore",[623,2179,1737],{"class":743},[623,2181,2183,2185],{"class":625,"line":2182},15,[623,2184,1390],{"class":633},[623,2186,1466],{"class":637},[588,2188,2189,2190,2193,2194,2197,2198,697],{},"Prefer ",[592,2191,2192],{},"assertAudit()"," when a missing audit should fail the test with a readable message. 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