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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":1675,"extension":1676,"links":1677,"meta":1682,"navigation":1683,"path":370,"seo":1684,"stem":371,"__hash__":1685},"docs\u002F5.use-cases\u002F3.better-auth\u002F02.identify-user.md","identifyUser",{"type":606,"value":607,"toc":1669},"minimark",[608,631,839,847,851,971,1055,1059,1062,1092,1098,1144,1148,1154,1279,1282,1433,1439,1443,1665],[609,610,611,614,615,618,619,622,623,626,627,630],"p",{},[612,613,604],"code",{}," is the core building block. Take a ",[612,616,617],{},"RequestLogger"," and a Better Auth session, extract safe fields, and call ",[612,620,621],{},"log.set()",". Returns ",[612,624,625],{},"true"," if the user was identified, ",[612,628,629],{},"false"," otherwise.",[632,633,639],"pre",{"className":634,"code":635,"filename":636,"language":637,"meta":638,"style":638},"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","",[612,640,641,674,681,739,751,778,795,827,833],{"__ignoreMap":638},[642,643,646,650,654,658,661,664,667,671],"span",{"class":644,"line":645},"line",1,[642,647,649],{"class":648},"s7zQu","import",[642,651,653],{"class":652},"sMK4o"," {",[642,655,657],{"class":656},"sTEyZ"," identifyUser",[642,659,660],{"class":652}," }",[642,662,663],{"class":648}," from",[642,665,666],{"class":652}," '",[642,668,670],{"class":669},"sfazB","evlog\u002Fbetter-auth",[642,672,673],{"class":652},"'\n",[642,675,677],{"class":644,"line":676},2,[642,678,680],{"emptyLinePlaceholder":679},true,"\n",[642,682,684,688,691,694,697,700,703,706,708,712,715,718,722,725,728,730,733,736],{"class":644,"line":683},3,[642,685,687],{"class":686},"spNyl","const",[642,689,690],{"class":656}," session ",[642,692,693],{"class":652},"=",[642,695,696],{"class":648}," await",[642,698,699],{"class":656}," auth",[642,701,702],{"class":652},".",[642,704,705],{"class":656},"api",[642,707,702],{"class":652},[642,709,711],{"class":710},"s2Zo4","getSession",[642,713,714],{"class":656},"(",[642,716,717],{"class":652},"{",[642,719,721],{"class":720},"swJcz"," headers",[642,723,724],{"class":652},":",[642,726,727],{"class":656}," event",[642,729,702],{"class":652},[642,731,732],{"class":656},"headers ",[642,734,735],{"class":652},"}",[642,737,738],{"class":656},")\n",[642,740,742,745,748],{"class":644,"line":741},4,[642,743,744],{"class":648},"if",[642,746,747],{"class":656}," (session) ",[642,749,750],{"class":652},"{\n",[642,752,754,757,760,763,765,767,770,773,776],{"class":644,"line":753},5,[642,755,756],{"class":686},"  const",[642,758,759],{"class":656}," identified",[642,761,762],{"class":652}," =",[642,764,657],{"class":710},[642,766,714],{"class":720},[642,768,769],{"class":656},"log",[642,771,772],{"class":652},",",[642,774,775],{"class":656}," session",[642,777,738],{"class":720},[642,779,781,784,787,790,793],{"class":644,"line":780},6,[642,782,783],{"class":648},"  if",[642,785,786],{"class":720}," (",[642,788,789],{"class":656},"identified",[642,791,792],{"class":720},") ",[642,794,750],{"class":652},[642,796,798,801,803,806,808,810,813,815,817,820,823,825],{"class":644,"line":797},7,[642,799,800],{"class":656},"    log",[642,802,702],{"class":652},[642,804,805],{"class":710},"set",[642,807,714],{"class":720},[642,809,717],{"class":652},[642,811,812],{"class":720}," subscription",[642,814,724],{"class":652},[642,816,666],{"class":652},[642,818,819],{"class":669},"premium",[642,821,822],{"class":652},"'",[642,824,660],{"class":652},[642,826,738],{"class":720},[642,828,830],{"class":644,"line":829},8,[642,831,832],{"class":652},"  }\n",[642,834,836],{"class":644,"line":835},9,[642,837,838],{"class":652},"}\n",[840,841,842,846],"tip",{},[843,844,845],"strong",{},"Safe by default."," Only whitelisted fields are extracted, and passwords, tokens, and secrets are never written to the logger.",[848,849,346],"h2",{"id":850},"options",[852,853,854,873],"table",{},[855,856,857],"thead",{},[858,859,860,864,867,870],"tr",{},[861,862,863],"th",{},"Option",[861,865,866],{},"Type",[861,868,869],{},"Default",[861,871,872],{},"Description",[874,875,876,899,931,951],"tbody",{},[858,877,878,884,889,893],{},[879,880,881],"td",{},[612,882,883],{},"maskEmail",[879,885,886],{},[612,887,888],{},"boolean",[879,890,891],{},[612,892,629],{},[879,894,895,896,702],{},"Mask emails as ",[612,897,898],{},"h***@example.com",[858,900,901,906,910,914],{},[879,902,903],{},[612,904,905],{},"session",[879,907,908],{},[612,909,888],{},[879,911,912],{},[612,913,625],{},[879,915,916,917,920,921,920,924,920,927,930],{},"Include session metadata (",[612,918,919],{},"session.id",", ",[612,922,923],{},"session.expiresAt",[612,925,926],{},"session.ipAddress",[612,928,929],{},"session.userAgent",").",[858,932,933,938,943,948],{},[879,934,935],{},[612,936,937],{},"fields",[879,939,940],{},[612,941,942],{},"string[]",[879,944,945],{},[612,946,947],{},"['id', 'name', 'email', 'image', 'emailVerified', 'createdAt']",[879,949,950],{},"User fields to extract.",[858,952,953,958,963,968],{},[879,954,955],{},[612,956,957],{},"extend",[879,959,960],{},[612,961,962],{},"(session) => Record\u003Cstring, unknown>",[879,964,965],{},[612,966,967],{},"undefined",[879,969,970],{},"Add custom fields from Better Auth plugins (organizations, roles, etc.).",[632,972,974],{"className":634,"code":973,"filename":636,"language":637,"meta":638,"style":638},"identifyUser(log, session, {\n  maskEmail: true,\n  fields: ['id', 'name'],\n  session: false,\n})\n",[612,975,976,992,1006,1037,1049],{"__ignoreMap":638},[642,977,978,980,983,985,987,989],{"class":644,"line":645},[642,979,604],{"class":710},[642,981,982],{"class":656},"(log",[642,984,772],{"class":652},[642,986,775],{"class":656},[642,988,772],{"class":652},[642,990,991],{"class":652}," {\n",[642,993,994,997,999,1003],{"class":644,"line":676},[642,995,996],{"class":720},"  maskEmail",[642,998,724],{"class":652},[642,1000,1002],{"class":1001},"sfNiH"," true",[642,1004,1005],{"class":652},",\n",[642,1007,1008,1011,1013,1016,1018,1021,1023,1025,1027,1030,1032,1035],{"class":644,"line":683},[642,1009,1010],{"class":720},"  fields",[642,1012,724],{"class":652},[642,1014,1015],{"class":656}," [",[642,1017,822],{"class":652},[642,1019,1020],{"class":669},"id",[642,1022,822],{"class":652},[642,1024,772],{"class":652},[642,1026,666],{"class":652},[642,1028,1029],{"class":669},"name",[642,1031,822],{"class":652},[642,1033,1034],{"class":656},"]",[642,1036,1005],{"class":652},[642,1038,1039,1042,1044,1047],{"class":644,"line":741},[642,1040,1041],{"class":720},"  session",[642,1043,724],{"class":652},[642,1045,1046],{"class":1001}," false",[642,1048,1005],{"class":652},[642,1050,1051,1053],{"class":644,"line":753},[642,1052,735],{"class":652},[642,1054,738],{"class":656},[848,1056,1058],{"id":1057},"mask-emails","Mask emails",[609,1060,1061],{},"Emails are PII. In environments where the audit\u002Flog trail might be reviewed by support or third parties, mask them:",[632,1063,1065],{"className":634,"code":1064,"language":637,"meta":638,"style":638},"identifyUser(log, session, { maskEmail: true })\n",[612,1066,1067],{"__ignoreMap":638},[642,1068,1069,1071,1073,1075,1077,1079,1081,1084,1086,1088,1090],{"class":644,"line":645},[642,1070,604],{"class":710},[642,1072,982],{"class":656},[642,1074,772],{"class":652},[642,1076,775],{"class":656},[642,1078,772],{"class":652},[642,1080,653],{"class":652},[642,1082,1083],{"class":720}," maskEmail",[642,1085,724],{"class":652},[642,1087,1002],{"class":1001},[642,1089,660],{"class":652},[642,1091,738],{"class":656},[609,1093,1094,1095,1097],{},"The ",[612,1096,883],{}," helper is also exported on its own:",[632,1099,1101],{"className":634,"code":1100,"language":637,"meta":638,"style":638},"import { maskEmail } from 'evlog\u002Fbetter-auth'\n\nmaskEmail('hugo@example.com') \u002F\u002F 'h***@example.com'\n",[612,1102,1103,1121,1125],{"__ignoreMap":638},[642,1104,1105,1107,1109,1111,1113,1115,1117,1119],{"class":644,"line":645},[642,1106,649],{"class":648},[642,1108,653],{"class":652},[642,1110,1083],{"class":656},[642,1112,660],{"class":652},[642,1114,663],{"class":648},[642,1116,666],{"class":652},[642,1118,670],{"class":669},[642,1120,673],{"class":652},[642,1122,1123],{"class":644,"line":676},[642,1124,680],{"emptyLinePlaceholder":679},[642,1126,1127,1129,1131,1133,1136,1138,1140],{"class":644,"line":683},[642,1128,883],{"class":710},[642,1130,714],{"class":656},[642,1132,822],{"class":652},[642,1134,1135],{"class":669},"hugo@example.com",[642,1137,822],{"class":652},[642,1139,792],{"class":656},[642,1141,1143],{"class":1142},"sHwdD","\u002F\u002F 'h***@example.com'\n",[848,1145,1147],{"id":1146},"capture-plugin-fields","Capture plugin fields",[609,1149,1150,1151,1153],{},"Better Auth ships with plugins (organizations, 2FA, roles, admin) that add fields to the session. Use ",[612,1152,957],{}," to surface them on the wide event:",[632,1155,1158],{"className":634,"code":1156,"filename":1157,"language":637,"meta":638,"style":638},"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",[612,1159,1160,1179,1183,1201,1223,1244,1264,1273],{"__ignoreMap":638},[642,1161,1162,1164,1166,1169,1171,1173,1175,1177],{"class":644,"line":645},[642,1163,649],{"class":648},[642,1165,653],{"class":652},[642,1167,1168],{"class":656}," createAuthMiddleware",[642,1170,660],{"class":652},[642,1172,663],{"class":648},[642,1174,666],{"class":652},[642,1176,670],{"class":669},[642,1178,673],{"class":652},[642,1180,1181],{"class":644,"line":676},[642,1182,680],{"emptyLinePlaceholder":679},[642,1184,1185,1187,1190,1192,1194,1197,1199],{"class":644,"line":683},[642,1186,687],{"class":686},[642,1188,1189],{"class":656}," identify ",[642,1191,693],{"class":652},[642,1193,1168],{"class":710},[642,1195,1196],{"class":656},"(auth",[642,1198,772],{"class":652},[642,1200,991],{"class":652},[642,1202,1203,1206,1208,1210,1213,1216,1219,1221],{"class":644,"line":741},[642,1204,1205],{"class":710},"  extend",[642,1207,724],{"class":652},[642,1209,786],{"class":652},[642,1211,905],{"class":1212},"sHdIc",[642,1214,1215],{"class":652},")",[642,1217,1218],{"class":686}," =>",[642,1220,786],{"class":656},[642,1222,750],{"class":652},[642,1224,1225,1228,1230,1232,1234,1237,1239,1242],{"class":644,"line":753},[642,1226,1227],{"class":720},"    organization",[642,1229,724],{"class":652},[642,1231,775],{"class":656},[642,1233,702],{"class":652},[642,1235,1236],{"class":656},"user",[642,1238,702],{"class":652},[642,1240,1241],{"class":656},"activeOrganization",[642,1243,1005],{"class":652},[642,1245,1246,1249,1251,1253,1255,1257,1259,1262],{"class":644,"line":780},[642,1247,1248],{"class":720},"    role",[642,1250,724],{"class":652},[642,1252,775],{"class":656},[642,1254,702],{"class":652},[642,1256,1236],{"class":656},[642,1258,702],{"class":652},[642,1260,1261],{"class":656},"role",[642,1263,1005],{"class":652},[642,1265,1266,1269,1271],{"class":644,"line":797},[642,1267,1268],{"class":652},"  }",[642,1270,1215],{"class":656},[642,1272,1005],{"class":652},[642,1274,1275,1277],{"class":644,"line":829},[642,1276,735],{"class":652},[642,1278,738],{"class":656},[609,1280,1281],{},"Wide event with plugin fields:",[632,1283,1288],{"className":1284,"code":1285,"filename":1286,"language":1287,"meta":638,"style":638},"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",[612,1289,1290,1294,1317,1364,1411,1429],{"__ignoreMap":638},[642,1291,1292],{"class":644,"line":645},[642,1293,750],{"class":652},[642,1295,1296,1299,1302,1305,1307,1310,1313,1315],{"class":644,"line":676},[642,1297,1298],{"class":652},"  \"",[642,1300,1301],{"class":686},"userId",[642,1303,1304],{"class":652},"\"",[642,1306,724],{"class":652},[642,1308,1309],{"class":652}," \"",[642,1311,1312],{"class":669},"QBX9tPjJQExWawAbNll75",[642,1314,1304],{"class":652},[642,1316,1005],{"class":652},[642,1318,1319,1321,1323,1325,1327,1329,1331,1334,1336,1338,1340,1342,1344,1346,1348,1350,1352,1354,1356,1359,1361],{"class":644,"line":683},[642,1320,1298],{"class":652},[642,1322,1236],{"class":686},[642,1324,1304],{"class":652},[642,1326,724],{"class":652},[642,1328,653],{"class":652},[642,1330,1309],{"class":652},[642,1332,1020],{"class":1333},"sBMFI",[642,1335,1304],{"class":652},[642,1337,724],{"class":652},[642,1339,1309],{"class":652},[642,1341,1312],{"class":669},[642,1343,1304],{"class":652},[642,1345,772],{"class":652},[642,1347,1309],{"class":652},[642,1349,1029],{"class":1333},[642,1351,1304],{"class":652},[642,1353,724],{"class":652},[642,1355,1309],{"class":652},[642,1357,1358],{"class":669},"Hugo Richard",[642,1360,1304],{"class":652},[642,1362,1363],{"class":652}," },\n",[642,1365,1366,1368,1371,1373,1375,1377,1379,1381,1383,1385,1387,1390,1392,1394,1396,1398,1400,1402,1404,1407,1409],{"class":644,"line":741},[642,1367,1298],{"class":652},[642,1369,1370],{"class":686},"organization",[642,1372,1304],{"class":652},[642,1374,724],{"class":652},[642,1376,653],{"class":652},[642,1378,1309],{"class":652},[642,1380,1020],{"class":1333},[642,1382,1304],{"class":652},[642,1384,724],{"class":652},[642,1386,1309],{"class":652},[642,1388,1389],{"class":669},"org_42",[642,1391,1304],{"class":652},[642,1393,772],{"class":652},[642,1395,1309],{"class":652},[642,1397,1029],{"class":1333},[642,1399,1304],{"class":652},[642,1401,724],{"class":652},[642,1403,1309],{"class":652},[642,1405,1406],{"class":669},"Acme",[642,1408,1304],{"class":652},[642,1410,1363],{"class":652},[642,1412,1413,1415,1417,1419,1421,1423,1426],{"class":644,"line":753},[642,1414,1298],{"class":652},[642,1416,1261],{"class":686},[642,1418,1304],{"class":652},[642,1420,724],{"class":652},[642,1422,1309],{"class":652},[642,1424,1425],{"class":669},"admin",[642,1427,1428],{"class":652},"\"\n",[642,1430,1431],{"class":644,"line":780},[642,1432,838],{"class":652},[840,1434,1435,1436,1438],{},"Keep 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Avoid heavy computations or extra database calls inside it; query the data Better Auth already loaded into the session.",[848,1440,1442],{"id":1441},"fields-that-reach-the-event","Fields that reach the event",[852,1444,1445,1457],{},[855,1446,1447],{},[858,1448,1449,1452,1455],{},[861,1450,1451],{},"Field",[861,1453,1454],{},"Source",[861,1456,872],{},[874,1458,1459,1476,1490,1505,1523,1538,1553,1568,1582,1596,1610,1624,1639,1652],{},[858,1460,1461,1465,1470],{},[879,1462,1463],{},[612,1464,1301],{},[879,1466,1467],{},[612,1468,1469],{},"session.user.id",[879,1471,1472,1473,930],{},"Top-level user ID (used by PostHog adapter as ",[612,1474,1475],{},"distinct_id",[858,1477,1478,1483,1487],{},[879,1479,1480],{},[612,1481,1482],{},"user.id",[879,1484,1485],{},[612,1486,1469],{},[879,1488,1489],{},"User ID.",[858,1491,1492,1497,1502],{},[879,1493,1494],{},[612,1495,1496],{},"user.name",[879,1498,1499],{},[612,1500,1501],{},"session.user.name",[879,1503,1504],{},"Display 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