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LogTape","\u002Fcompare\u002Flogtape","9.compare\u002F3.logtape",{"title":605,"path":606,"stem":607,"icon":577},"evlog vs Winston: formats and request events","\u002Fcompare\u002Fwinston","9.compare\u002F4.winston",{"title":609,"path":610,"stem":611,"icon":577},"evlog vs Consola: reporters and request context","\u002Fcompare\u002Fconsola","9.compare\u002F5.consola",{"id":613,"title":614,"body":615,"description":1685,"extension":1686,"links":1687,"meta":1692,"navigation":1693,"path":370,"seo":1694,"stem":371,"__hash__":1695},"docs\u002F5.use-cases\u002F3.better-auth\u002F02.identify-user.md","identifyUser",{"type":616,"value":617,"toc":1679},"minimark",[618,641,849,857,861,981,1065,1069,1072,1102,1108,1154,1158,1164,1289,1292,1443,1449,1453,1675],[619,620,621,624,625,628,629,632,633,636,637,640],"p",{},[622,623,614],"code",{}," is the core building block. Take a ",[622,626,627],{},"RequestLogger"," and a Better Auth session, extract safe fields, and call ",[622,630,631],{},"log.set()",". Returns ",[622,634,635],{},"true"," if the user was identified, ",[622,638,639],{},"false"," otherwise.",[642,643,649],"pre",{"className":644,"code":645,"filename":646,"language":647,"meta":648,"style":648},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { identifyUser } from 'evlog\u002Fbetter-auth'\n\nconst session = await auth.api.getSession({ headers: event.headers })\nif (session) {\n  const identified = identifyUser(log, session)\n  if (identified) {\n    log.set({ subscription: 'premium' })\n  }\n}\n","server\u002Fapi\u002Fcheckout.post.ts","typescript","",[622,650,651,684,691,749,761,788,805,837,843],{"__ignoreMap":648},[652,653,656,660,664,668,671,674,677,681],"span",{"class":654,"line":655},"line",1,[652,657,659],{"class":658},"s7zQu","import",[652,661,663],{"class":662},"sMK4o"," {",[652,665,667],{"class":666},"sTEyZ"," identifyUser",[652,669,670],{"class":662}," }",[652,672,673],{"class":658}," from",[652,675,676],{"class":662}," '",[652,678,680],{"class":679},"sfazB","evlog\u002Fbetter-auth",[652,682,683],{"class":662},"'\n",[652,685,687],{"class":654,"line":686},2,[652,688,690],{"emptyLinePlaceholder":689},true,"\n",[652,692,694,698,701,704,707,710,713,716,718,722,725,728,732,735,738,740,743,746],{"class":654,"line":693},3,[652,695,697],{"class":696},"spNyl","const",[652,699,700],{"class":666}," session ",[652,702,703],{"class":662},"=",[652,705,706],{"class":658}," await",[652,708,709],{"class":666}," auth",[652,711,712],{"class":662},".",[652,714,715],{"class":666},"api",[652,717,712],{"class":662},[652,719,721],{"class":720},"s2Zo4","getSession",[652,723,724],{"class":666},"(",[652,726,727],{"class":662},"{",[652,729,731],{"class":730},"swJcz"," headers",[652,733,734],{"class":662},":",[652,736,737],{"class":666}," event",[652,739,712],{"class":662},[652,741,742],{"class":666},"headers ",[652,744,745],{"class":662},"}",[652,747,748],{"class":666},")\n",[652,750,752,755,758],{"class":654,"line":751},4,[652,753,754],{"class":658},"if",[652,756,757],{"class":666}," (session) ",[652,759,760],{"class":662},"{\n",[652,762,764,767,770,773,775,777,780,783,786],{"class":654,"line":763},5,[652,765,766],{"class":696},"  const",[652,768,769],{"class":666}," identified",[652,771,772],{"class":662}," =",[652,774,667],{"class":720},[652,776,724],{"class":730},[652,778,779],{"class":666},"log",[652,781,782],{"class":662},",",[652,784,785],{"class":666}," session",[652,787,748],{"class":730},[652,789,791,794,797,800,803],{"class":654,"line":790},6,[652,792,793],{"class":658},"  if",[652,795,796],{"class":730}," (",[652,798,799],{"class":666},"identified",[652,801,802],{"class":730},") ",[652,804,760],{"class":662},[652,806,808,811,813,816,818,820,823,825,827,830,833,835],{"class":654,"line":807},7,[652,809,810],{"class":666},"    log",[652,812,712],{"class":662},[652,814,815],{"class":720},"set",[652,817,724],{"class":730},[652,819,727],{"class":662},[652,821,822],{"class":730}," subscription",[652,824,734],{"class":662},[652,826,676],{"class":662},[652,828,829],{"class":679},"premium",[652,831,832],{"class":662},"'",[652,834,670],{"class":662},[652,836,748],{"class":730},[652,838,840],{"class":654,"line":839},8,[652,841,842],{"class":662},"  }\n",[652,844,846],{"class":654,"line":845},9,[652,847,848],{"class":662},"}\n",[850,851,852,856],"tip",{},[853,854,855],"strong",{},"Safe by default."," Only whitelisted fields are extracted, and passwords, tokens, and secrets are never written to the logger.",[858,859,346],"h2",{"id":860},"options",[862,863,864,883],"table",{},[865,866,867],"thead",{},[868,869,870,874,877,880],"tr",{},[871,872,873],"th",{},"Option",[871,875,876],{},"Type",[871,878,879],{},"Default",[871,881,882],{},"Description",[884,885,886,909,941,961],"tbody",{},[868,887,888,894,899,903],{},[889,890,891],"td",{},[622,892,893],{},"maskEmail",[889,895,896],{},[622,897,898],{},"boolean",[889,900,901],{},[622,902,639],{},[889,904,905,906,712],{},"Mask emails as ",[622,907,908],{},"h***@example.com",[868,910,911,916,920,924],{},[889,912,913],{},[622,914,915],{},"session",[889,917,918],{},[622,919,898],{},[889,921,922],{},[622,923,635],{},[889,925,926,927,930,931,930,934,930,937,940],{},"Include session metadata (",[622,928,929],{},"session.id",", ",[622,932,933],{},"session.expiresAt",[622,935,936],{},"session.ipAddress",[622,938,939],{},"session.userAgent",").",[868,942,943,948,953,958],{},[889,944,945],{},[622,946,947],{},"fields",[889,949,950],{},[622,951,952],{},"string[]",[889,954,955],{},[622,956,957],{},"['id', 'name', 'email', 'image', 'emailVerified', 'createdAt']",[889,959,960],{},"User fields to extract.",[868,962,963,968,973,978],{},[889,964,965],{},[622,966,967],{},"extend",[889,969,970],{},[622,971,972],{},"(session) => Record\u003Cstring, unknown>",[889,974,975],{},[622,976,977],{},"undefined",[889,979,980],{},"Add custom fields from Better Auth plugins (organizations, roles, etc.).",[642,982,984],{"className":644,"code":983,"filename":646,"language":647,"meta":648,"style":648},"identifyUser(log, session, {\n  maskEmail: true,\n  fields: ['id', 'name'],\n  session: false,\n})\n",[622,985,986,1002,1016,1047,1059],{"__ignoreMap":648},[652,987,988,990,993,995,997,999],{"class":654,"line":655},[652,989,614],{"class":720},[652,991,992],{"class":666},"(log",[652,994,782],{"class":662},[652,996,785],{"class":666},[652,998,782],{"class":662},[652,1000,1001],{"class":662}," {\n",[652,1003,1004,1007,1009,1013],{"class":654,"line":686},[652,1005,1006],{"class":730},"  maskEmail",[652,1008,734],{"class":662},[652,1010,1012],{"class":1011},"sfNiH"," true",[652,1014,1015],{"class":662},",\n",[652,1017,1018,1021,1023,1026,1028,1031,1033,1035,1037,1040,1042,1045],{"class":654,"line":693},[652,1019,1020],{"class":730},"  fields",[652,1022,734],{"class":662},[652,1024,1025],{"class":666}," [",[652,1027,832],{"class":662},[652,1029,1030],{"class":679},"id",[652,1032,832],{"class":662},[652,1034,782],{"class":662},[652,1036,676],{"class":662},[652,1038,1039],{"class":679},"name",[652,1041,832],{"class":662},[652,1043,1044],{"class":666},"]",[652,1046,1015],{"class":662},[652,1048,1049,1052,1054,1057],{"class":654,"line":751},[652,1050,1051],{"class":730},"  session",[652,1053,734],{"class":662},[652,1055,1056],{"class":1011}," false",[652,1058,1015],{"class":662},[652,1060,1061,1063],{"class":654,"line":763},[652,1062,745],{"class":662},[652,1064,748],{"class":666},[858,1066,1068],{"id":1067},"mask-emails","Mask emails",[619,1070,1071],{},"Emails are PII. In environments where the audit\u002Flog trail might be reviewed by support or third parties, mask them:",[642,1073,1075],{"className":644,"code":1074,"language":647,"meta":648,"style":648},"identifyUser(log, session, { maskEmail: true })\n",[622,1076,1077],{"__ignoreMap":648},[652,1078,1079,1081,1083,1085,1087,1089,1091,1094,1096,1098,1100],{"class":654,"line":655},[652,1080,614],{"class":720},[652,1082,992],{"class":666},[652,1084,782],{"class":662},[652,1086,785],{"class":666},[652,1088,782],{"class":662},[652,1090,663],{"class":662},[652,1092,1093],{"class":730}," maskEmail",[652,1095,734],{"class":662},[652,1097,1012],{"class":1011},[652,1099,670],{"class":662},[652,1101,748],{"class":666},[619,1103,1104,1105,1107],{},"The ",[622,1106,893],{}," helper is also exported on its own:",[642,1109,1111],{"className":644,"code":1110,"language":647,"meta":648,"style":648},"import { maskEmail } from 'evlog\u002Fbetter-auth'\n\nmaskEmail('hugo@example.com') \u002F\u002F 'h***@example.com'\n",[622,1112,1113,1131,1135],{"__ignoreMap":648},[652,1114,1115,1117,1119,1121,1123,1125,1127,1129],{"class":654,"line":655},[652,1116,659],{"class":658},[652,1118,663],{"class":662},[652,1120,1093],{"class":666},[652,1122,670],{"class":662},[652,1124,673],{"class":658},[652,1126,676],{"class":662},[652,1128,680],{"class":679},[652,1130,683],{"class":662},[652,1132,1133],{"class":654,"line":686},[652,1134,690],{"emptyLinePlaceholder":689},[652,1136,1137,1139,1141,1143,1146,1148,1150],{"class":654,"line":693},[652,1138,893],{"class":720},[652,1140,724],{"class":666},[652,1142,832],{"class":662},[652,1144,1145],{"class":679},"hugo@example.com",[652,1147,832],{"class":662},[652,1149,802],{"class":666},[652,1151,1153],{"class":1152},"sHwdD","\u002F\u002F 'h***@example.com'\n",[858,1155,1157],{"id":1156},"capture-plugin-fields","Capture plugin fields",[619,1159,1160,1161,1163],{},"Better Auth ships with plugins (organizations, 2FA, roles, admin) that add fields to the session. Use ",[622,1162,967],{}," to surface them on the wide event:",[642,1165,1168],{"className":644,"code":1166,"filename":1167,"language":647,"meta":648,"style":648},"import { createAuthMiddleware } from 'evlog\u002Fbetter-auth'\n\nconst identify = createAuthMiddleware(auth, {\n  extend: (session) => ({\n    organization: session.user.activeOrganization,\n    role: session.user.role,\n  }),\n})\n","server\u002Fmiddleware\u002Fauth-identify.ts",[622,1169,1170,1189,1193,1211,1233,1254,1274,1283],{"__ignoreMap":648},[652,1171,1172,1174,1176,1179,1181,1183,1185,1187],{"class":654,"line":655},[652,1173,659],{"class":658},[652,1175,663],{"class":662},[652,1177,1178],{"class":666}," createAuthMiddleware",[652,1180,670],{"class":662},[652,1182,673],{"class":658},[652,1184,676],{"class":662},[652,1186,680],{"class":679},[652,1188,683],{"class":662},[652,1190,1191],{"class":654,"line":686},[652,1192,690],{"emptyLinePlaceholder":689},[652,1194,1195,1197,1200,1202,1204,1207,1209],{"class":654,"line":693},[652,1196,697],{"class":696},[652,1198,1199],{"class":666}," identify ",[652,1201,703],{"class":662},[652,1203,1178],{"class":720},[652,1205,1206],{"class":666},"(auth",[652,1208,782],{"class":662},[652,1210,1001],{"class":662},[652,1212,1213,1216,1218,1220,1223,1226,1229,1231],{"class":654,"line":751},[652,1214,1215],{"class":720},"  extend",[652,1217,734],{"class":662},[652,1219,796],{"class":662},[652,1221,915],{"class":1222},"sHdIc",[652,1224,1225],{"class":662},")",[652,1227,1228],{"class":696}," =>",[652,1230,796],{"class":666},[652,1232,760],{"class":662},[652,1234,1235,1238,1240,1242,1244,1247,1249,1252],{"class":654,"line":763},[652,1236,1237],{"class":730},"    organization",[652,1239,734],{"class":662},[652,1241,785],{"class":666},[652,1243,712],{"class":662},[652,1245,1246],{"class":666},"user",[652,1248,712],{"class":662},[652,1250,1251],{"class":666},"activeOrganization",[652,1253,1015],{"class":662},[652,1255,1256,1259,1261,1263,1265,1267,1269,1272],{"class":654,"line":790},[652,1257,1258],{"class":730},"    role",[652,1260,734],{"class":662},[652,1262,785],{"class":666},[652,1264,712],{"class":662},[652,1266,1246],{"class":666},[652,1268,712],{"class":662},[652,1270,1271],{"class":666},"role",[652,1273,1015],{"class":662},[652,1275,1276,1279,1281],{"class":654,"line":807},[652,1277,1278],{"class":662},"  }",[652,1280,1225],{"class":666},[652,1282,1015],{"class":662},[652,1284,1285,1287],{"class":654,"line":839},[652,1286,745],{"class":662},[652,1288,748],{"class":666},[619,1290,1291],{},"Wide event with plugin fields:",[642,1293,1298],{"className":1294,"code":1295,"filename":1296,"language":1297,"meta":648,"style":648},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"userId\": \"QBX9tPjJQExWawAbNll75\",\n  \"user\": { \"id\": \"QBX9tPjJQExWawAbNll75\", \"name\": \"Hugo Richard\" },\n  \"organization\": { \"id\": \"org_42\", \"name\": \"Acme\" },\n  \"role\": \"admin\"\n}\n","Wide Event","json",[622,1299,1300,1304,1327,1374,1421,1439],{"__ignoreMap":648},[652,1301,1302],{"class":654,"line":655},[652,1303,760],{"class":662},[652,1305,1306,1309,1312,1315,1317,1320,1323,1325],{"class":654,"line":686},[652,1307,1308],{"class":662},"  \"",[652,1310,1311],{"class":696},"userId",[652,1313,1314],{"class":662},"\"",[652,1316,734],{"class":662},[652,1318,1319],{"class":662}," \"",[652,1321,1322],{"class":679},"QBX9tPjJQExWawAbNll75",[652,1324,1314],{"class":662},[652,1326,1015],{"class":662},[652,1328,1329,1331,1333,1335,1337,1339,1341,1344,1346,1348,1350,1352,1354,1356,1358,1360,1362,1364,1366,1369,1371],{"class":654,"line":693},[652,1330,1308],{"class":662},[652,1332,1246],{"class":696},[652,1334,1314],{"class":662},[652,1336,734],{"class":662},[652,1338,663],{"class":662},[652,1340,1319],{"class":662},[652,1342,1030],{"class":1343},"sBMFI",[652,1345,1314],{"class":662},[652,1347,734],{"class":662},[652,1349,1319],{"class":662},[652,1351,1322],{"class":679},[652,1353,1314],{"class":662},[652,1355,782],{"class":662},[652,1357,1319],{"class":662},[652,1359,1039],{"class":1343},[652,1361,1314],{"class":662},[652,1363,734],{"class":662},[652,1365,1319],{"class":662},[652,1367,1368],{"class":679},"Hugo Richard",[652,1370,1314],{"class":662},[652,1372,1373],{"class":662}," },\n",[652,1375,1376,1378,1381,1383,1385,1387,1389,1391,1393,1395,1397,1400,1402,1404,1406,1408,1410,1412,1414,1417,1419],{"class":654,"line":751},[652,1377,1308],{"class":662},[652,1379,1380],{"class":696},"organization",[652,1382,1314],{"class":662},[652,1384,734],{"class":662},[652,1386,663],{"class":662},[652,1388,1319],{"class":662},[652,1390,1030],{"class":1343},[652,1392,1314],{"class":662},[652,1394,734],{"class":662},[652,1396,1319],{"class":662},[652,1398,1399],{"class":679},"org_42",[652,1401,1314],{"class":662},[652,1403,782],{"class":662},[652,1405,1319],{"class":662},[652,1407,1039],{"class":1343},[652,1409,1314],{"class":662},[652,1411,734],{"class":662},[652,1413,1319],{"class":662},[652,1415,1416],{"class":679},"Acme",[652,1418,1314],{"class":662},[652,1420,1373],{"class":662},[652,1422,1423,1425,1427,1429,1431,1433,1436],{"class":654,"line":763},[652,1424,1308],{"class":662},[652,1426,1271],{"class":696},[652,1428,1314],{"class":662},[652,1430,734],{"class":662},[652,1432,1319],{"class":662},[652,1434,1435],{"class":679},"admin",[652,1437,1438],{"class":662},"\"\n",[652,1440,1441],{"class":654,"line":790},[652,1442,848],{"class":662},[850,1444,1445,1446,1448],{},"Keep ",[622,1447,967],{}," deterministic, because it runs on every request. Avoid heavy computations or extra database calls inside it; query the data Better Auth already loaded into the session.",[858,1450,1452],{"id":1451},"fields-that-reach-the-event","Fields that reach the event",[862,1454,1455,1467],{},[865,1456,1457],{},[868,1458,1459,1462,1465],{},[871,1460,1461],{},"Field",[871,1463,1464],{},"Source",[871,1466,882],{},[884,1468,1469,1486,1500,1515,1533,1548,1563,1578,1592,1606,1620,1634,1649,1662],{},[868,1470,1471,1475,1480],{},[889,1472,1473],{},[622,1474,1311],{},[889,1476,1477],{},[622,1478,1479],{},"session.user.id",[889,1481,1482,1483,940],{},"Top-level user ID (used by PostHog adapter as ",[622,1484,1485],{},"distinct_id",[868,1487,1488,1493,1497],{},[889,1489,1490],{},[622,1491,1492],{},"user.id",[889,1494,1495],{},[622,1496,1479],{},[889,1498,1499],{},"User ID.",[868,1501,1502,1507,1512],{},[889,1503,1504],{},[622,1505,1506],{},"user.name",[889,1508,1509],{},[622,1510,1511],{},"session.user.name",[889,1513,1514],{},"Display 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