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",[591,622,623],{"href":509},"drain",":",[626,627,628,639],"ul",{},[629,630,631,635,636,638],"li",{},[632,633,634],"strong",{},"Ship an evlog integration from a package that does not depend on evlog."," A subscriber only needs the channel name, so a vendor SDK, an internal shared library, or an APM agent can consume wide events without a peer dependency, a version constraint, or a line in your ",[597,637,607],{}," call.",[629,640,641,644,645,649,650,653],{},[632,642,643],{},"Get events out of a Cloudflare Worker without a drain."," Workers forwards every channel message to a ",[591,646,648],{"href":647},"#cloudflare-workers","Tail Worker",", which runs after the response with its own CPU budget, no ",[597,651,652],{},"waitUntil",", no drain competing with your request.",[588,655,656,657,608],{},"For everything else (batching, retry, adding fields, fanning out to several in-process consumers), a plugin or a drain is the better tool. There is a ",[591,658,660],{"href":659},"#when-a-plugin-is-the-better-tool","comparison at the bottom of this page",[610,662,664],{"id":663},"enabling-it","Enabling it",[588,666,667],{},"It is off by default. Turn it on once, at startup:",[669,670,675],"pre",{"className":671,"code":672,"language":673,"meta":674,"style":674},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { enableDiagnosticsChannel } from 'evlog\u002Fdiagnostics'\n\nawait enableDiagnosticsChannel()\n","typescript","",[597,676,677,710,717],{"__ignoreMap":674},[678,679,682,686,690,694,697,700,703,707],"span",{"class":680,"line":681},"line",1,[678,683,685],{"class":684},"s7zQu","import",[678,687,689],{"class":688},"sMK4o"," {",[678,691,693],{"class":692},"sTEyZ"," enableDiagnosticsChannel",[678,695,696],{"class":688}," }",[678,698,699],{"class":684}," from",[678,701,702],{"class":688}," '",[678,704,706],{"class":705},"sfazB","evlog\u002Fdiagnostics",[678,708,709],{"class":688},"'\n",[678,711,713],{"class":680,"line":712},2,[678,714,716],{"emptyLinePlaceholder":715},true,"\n",[678,718,720,723,726],{"class":680,"line":719},3,[678,721,722],{"class":684},"await",[678,724,693],{"class":725},"s2Zo4",[678,727,728],{"class":692},"()\n",[588,730,731,732,736],{},"The call takes no options and is the same on every framework. Only ",[733,734,735],"em",{},"where"," your app runs startup code differs:",[738,739,740,822,1068,1156,1281,1488],"code-group",{},[669,741,744],{"className":671,"code":742,"filename":743,"language":673,"meta":674,"style":674},"\u002F\u002F server\u002Fplugins\u002Fevlog-diagnostics.ts\nimport { enableDiagnosticsChannel } from 'evlog\u002Fdiagnostics'\n\nexport default defineNitroPlugin(async () => {\n  await enableDiagnosticsChannel()\n})\n","Nuxt \u002F Nitro",[597,745,746,752,770,774,802,813],{"__ignoreMap":674},[678,747,748],{"class":680,"line":681},[678,749,751],{"class":750},"sHwdD","\u002F\u002F server\u002Fplugins\u002Fevlog-diagnostics.ts\n",[678,753,754,756,758,760,762,764,766,768],{"class":680,"line":712},[678,755,685],{"class":684},[678,757,689],{"class":688},[678,759,693],{"class":692},[678,761,696],{"class":688},[678,763,699],{"class":684},[678,765,702],{"class":688},[678,767,706],{"class":705},[678,769,709],{"class":688},[678,771,772],{"class":680,"line":719},[678,773,716],{"emptyLinePlaceholder":715},[678,775,777,780,783,786,789,793,796,799],{"class":680,"line":776},4,[678,778,779],{"class":684},"export",[678,781,782],{"class":684}," default",[678,784,785],{"class":725}," defineNitroPlugin",[678,787,788],{"class":692},"(",[678,790,792],{"class":791},"spNyl","async",[678,794,795],{"class":688}," ()",[678,797,798],{"class":791}," =>",[678,800,801],{"class":688}," {\n",[678,803,805,808,810],{"class":680,"line":804},5,[678,806,807],{"class":684},"  await",[678,809,693],{"class":725},[678,811,728],{"class":812},"swJcz",[678,814,816,819],{"class":680,"line":815},6,[678,817,818],{"class":688},"}",[678,820,821],{"class":692},")\n",[669,823,825],{"className":671,"code":824,"filename":245,"language":673,"meta":674,"style":674},"\u002F\u002F instrumentation.ts\nimport { defineNodeInstrumentation } from 'evlog\u002Fnext\u002Finstrumentation'\n\nexport const { register, onRequestError } = defineNodeInstrumentation(async () => {\n  const { createInstrumentation } = await import('evlog\u002Fnext\u002Finstrumentation\u002Fcreate')\n  const { enableDiagnosticsChannel } = await import('evlog\u002Fdiagnostics')\n  const { register: evlogRegister, onRequestError } = createInstrumentation({ service: 'my-app' })\n\n  return {\n    async register() {\n      await evlogRegister()\n      await enableDiagnosticsChannel()\n    },\n    onRequestError,\n  }\n})\n",[597,826,827,832,852,856,891,923,949,995,1000,1008,1021,1031,1040,1046,1055,1061],{"__ignoreMap":674},[678,828,829],{"class":680,"line":681},[678,830,831],{"class":750},"\u002F\u002F instrumentation.ts\n",[678,833,834,836,838,841,843,845,847,850],{"class":680,"line":712},[678,835,685],{"class":684},[678,837,689],{"class":688},[678,839,840],{"class":692}," defineNodeInstrumentation",[678,842,696],{"class":688},[678,844,699],{"class":684},[678,846,702],{"class":688},[678,848,849],{"class":705},"evlog\u002Fnext\u002Finstrumentation",[678,851,709],{"class":688},[678,853,854],{"class":680,"line":719},[678,855,716],{"emptyLinePlaceholder":715},[678,857,858,860,863,865,868,871,874,876,879,881,883,885,887,889],{"class":680,"line":776},[678,859,779],{"class":684},[678,861,862],{"class":791}," const",[678,864,689],{"class":688},[678,866,867],{"class":692}," register",[678,869,870],{"class":688},",",[678,872,873],{"class":692}," onRequestError ",[678,875,818],{"class":688},[678,877,878],{"class":688}," =",[678,880,840],{"class":725},[678,882,788],{"class":692},[678,884,792],{"class":791},[678,886,795],{"class":688},[678,888,798],{"class":791},[678,890,801],{"class":688},[678,892,893,896,898,901,903,905,908,911,913,916,919,921],{"class":680,"line":804},[678,894,895],{"class":791},"  const",[678,897,689],{"class":688},[678,899,900],{"class":692}," createInstrumentation",[678,902,696],{"class":688},[678,904,878],{"class":688},[678,906,907],{"class":684}," await",[678,909,910],{"class":688}," import",[678,912,788],{"class":812},[678,914,915],{"class":688},"'",[678,917,918],{"class":705},"evlog\u002Fnext\u002Finstrumentation\u002Fcreate",[678,920,915],{"class":688},[678,922,821],{"class":812},[678,924,925,927,929,931,933,935,937,939,941,943,945,947],{"class":680,"line":815},[678,926,895],{"class":791},[678,928,689],{"class":688},[678,930,693],{"class":692},[678,932,696],{"class":688},[678,934,878],{"class":688},[678,936,907],{"class":684},[678,938,910],{"class":688},[678,940,788],{"class":812},[678,942,915],{"class":688},[678,944,706],{"class":705},[678,946,915],{"class":688},[678,948,821],{"class":812},[678,950,952,954,956,958,960,963,965,968,970,972,974,976,979,982,984,986,989,991,993],{"class":680,"line":951},7,[678,953,895],{"class":791},[678,955,689],{"class":688},[678,957,867],{"class":812},[678,959,624],{"class":688},[678,961,962],{"class":692}," evlogRegister",[678,964,870],{"class":688},[678,966,967],{"class":692}," onRequestError",[678,969,696],{"class":688},[678,971,878],{"class":688},[678,973,900],{"class":725},[678,975,788],{"class":812},[678,977,978],{"class":688},"{",[678,980,981],{"class":812}," service",[678,983,624],{"class":688},[678,985,702],{"class":688},[678,987,988],{"class":705},"my-app",[678,990,915],{"class":688},[678,992,696],{"class":688},[678,994,821],{"class":812},[678,996,998],{"class":680,"line":997},8,[678,999,716],{"emptyLinePlaceholder":715},[678,1001,1003,1006],{"class":680,"line":1002},9,[678,1004,1005],{"class":684},"  return",[678,1007,801],{"class":688},[678,1009,1011,1014,1016,1019],{"class":680,"line":1010},10,[678,1012,1013],{"class":791},"    async",[678,1015,867],{"class":812},[678,1017,1018],{"class":688},"()",[678,1020,801],{"class":688},[678,1022,1024,1027,1029],{"class":680,"line":1023},11,[678,1025,1026],{"class":684},"      await",[678,1028,962],{"class":725},[678,1030,728],{"class":812},[678,1032,1034,1036,1038],{"class":680,"line":1033},12,[678,1035,1026],{"class":684},[678,1037,693],{"class":725},[678,1039,728],{"class":812},[678,1041,1043],{"class":680,"line":1042},13,[678,1044,1045],{"class":688},"    },\n",[678,1047,1049,1052],{"class":680,"line":1048},14,[678,1050,1051],{"class":692},"    onRequestError",[678,1053,1054],{"class":688},",\n",[678,1056,1058],{"class":680,"line":1057},15,[678,1059,1060],{"class":688},"  }\n",[678,1062,1064,1066],{"class":680,"line":1063},16,[678,1065,818],{"class":688},[678,1067,821],{"class":692},[669,1069,1071],{"className":671,"code":1070,"filename":250,"language":673,"meta":674,"style":674},"\u002F\u002F src\u002Fhooks.server.ts\nimport { createEvlogHooks } from 'evlog\u002Fsveltekit'\nimport { enableDiagnosticsChannel } from 'evlog\u002Fdiagnostics'\n\nawait enableDiagnosticsChannel()\n\nexport const { handle, handleError } = createEvlogHooks()\n",[597,1072,1073,1078,1098,1116,1120,1128,1132],{"__ignoreMap":674},[678,1074,1075],{"class":680,"line":681},[678,1076,1077],{"class":750},"\u002F\u002F src\u002Fhooks.server.ts\n",[678,1079,1080,1082,1084,1087,1089,1091,1093,1096],{"class":680,"line":712},[678,1081,685],{"class":684},[678,1083,689],{"class":688},[678,1085,1086],{"class":692}," createEvlogHooks",[678,1088,696],{"class":688},[678,1090,699],{"class":684},[678,1092,702],{"class":688},[678,1094,1095],{"class":705},"evlog\u002Fsveltekit",[678,1097,709],{"class":688},[678,1099,1100,1102,1104,1106,1108,1110,1112,1114],{"class":680,"line":719},[678,1101,685],{"class":684},[678,1103,689],{"class":688},[678,1105,693],{"class":692},[678,1107,696],{"class":688},[678,1109,699],{"class":684},[678,1111,702],{"class":688},[678,1113,706],{"class":705},[678,1115,709],{"class":688},[678,1117,1118],{"class":680,"line":776},[678,1119,716],{"emptyLinePlaceholder":715},[678,1121,1122,1124,1126],{"class":680,"line":804},[678,1123,722],{"class":684},[678,1125,693],{"class":725},[678,1127,728],{"class":692},[678,1129,1130],{"class":680,"line":815},[678,1131,716],{"emptyLinePlaceholder":715},[678,1133,1134,1136,1138,1140,1143,1145,1148,1150,1152,1154],{"class":680,"line":951},[678,1135,779],{"class":684},[678,1137,862],{"class":791},[678,1139,689],{"class":688},[678,1141,1142],{"class":692}," handle",[678,1144,870],{"class":688},[678,1146,1147],{"class":692}," handleError ",[678,1149,818],{"class":688},[678,1151,878],{"class":688},[678,1153,1086],{"class":725},[678,1155,728],{"class":692},[669,1157,1159],{"className":671,"code":1158,"filename":275,"language":673,"meta":674,"style":674},"\u002F\u002F Same shape for Express, Fastify, Elysia, NestJS and oRPC:\n\u002F\u002F enable once in the server entry, before the app starts serving.\nimport { Hono } from 'hono'\nimport { evlog } from 'evlog\u002Fhono'\nimport { enableDiagnosticsChannel } from 'evlog\u002Fdiagnostics'\n\nawait enableDiagnosticsChannel()\n\nconst app = new Hono()\napp.use(evlog())\n",[597,1160,1161,1166,1171,1191,1211,1229,1233,1241,1245,1263],{"__ignoreMap":674},[678,1162,1163],{"class":680,"line":681},[678,1164,1165],{"class":750},"\u002F\u002F Same shape for Express, Fastify, Elysia, NestJS and oRPC:\n",[678,1167,1168],{"class":680,"line":712},[678,1169,1170],{"class":750},"\u002F\u002F enable once in the server entry, before the app starts serving.\n",[678,1172,1173,1175,1177,1180,1182,1184,1186,1189],{"class":680,"line":719},[678,1174,685],{"class":684},[678,1176,689],{"class":688},[678,1178,1179],{"class":692}," Hono",[678,1181,696],{"class":688},[678,1183,699],{"class":684},[678,1185,702],{"class":688},[678,1187,1188],{"class":705},"hono",[678,1190,709],{"class":688},[678,1192,1193,1195,1197,1200,1202,1204,1206,1209],{"class":680,"line":776},[678,1194,685],{"class":684},[678,1196,689],{"class":688},[678,1198,1199],{"class":692}," evlog",[678,1201,696],{"class":688},[678,1203,699],{"class":684},[678,1205,702],{"class":688},[678,1207,1208],{"class":705},"evlog\u002Fhono",[678,1210,709],{"class":688},[678,1212,1213,1215,1217,1219,1221,1223,1225,1227],{"class":680,"line":804},[678,1214,685],{"class":684},[678,1216,689],{"class":688},[678,1218,693],{"class":692},[678,1220,696],{"class":688},[678,1222,699],{"class":684},[678,1224,702],{"class":688},[678,1226,706],{"class":705},[678,1228,709],{"class":688},[678,1230,1231],{"class":680,"line":815},[678,1232,716],{"emptyLinePlaceholder":715},[678,1234,1235,1237,1239],{"class":680,"line":951},[678,1236,722],{"class":684},[678,1238,693],{"class":725},[678,1240,728],{"class":692},[678,1242,1243],{"class":680,"line":997},[678,1244,716],{"emptyLinePlaceholder":715},[678,1246,1247,1250,1253,1256,1259,1261],{"class":680,"line":1002},[678,1248,1249],{"class":791},"const",[678,1251,1252],{"class":692}," app ",[678,1254,1255],{"class":688},"=",[678,1257,1258],{"class":688}," new",[678,1260,1179],{"class":725},[678,1262,728],{"class":692},[678,1264,1265,1268,1270,1273,1275,1278],{"class":680,"line":1010},[678,1266,1267],{"class":692},"app",[678,1269,608],{"class":688},[678,1271,1272],{"class":725},"use",[678,1274,788],{"class":692},[678,1276,1277],{"class":725},"evlog",[678,1279,1280],{"class":692},"())\n",[669,1282,1284],{"className":671,"code":1283,"filename":295,"language":673,"meta":674,"style":674},"\u002F\u002F src\u002Fworker.ts — needs the nodejs_compat flag\nimport { initWorkersLogger, withEvlog } from 'evlog\u002Fworkers'\nimport { enableDiagnosticsChannel } from 'evlog\u002Fdiagnostics'\n\ninitWorkersLogger({ env: { service: 'my-worker' } })\nawait enableDiagnosticsChannel()\n\nexport default withEvlog(async (request, env, ctx, log) => {\n  log.set({ action: 'handle_request' })\n  return Response.json({ ok: true })\n})\n",[597,1285,1286,1291,1316,1334,1338,1371,1379,1383,1423,1453,1482],{"__ignoreMap":674},[678,1287,1288],{"class":680,"line":681},[678,1289,1290],{"class":750},"\u002F\u002F src\u002Fworker.ts — needs the nodejs_compat flag\n",[678,1292,1293,1295,1297,1300,1302,1305,1307,1309,1311,1314],{"class":680,"line":712},[678,1294,685],{"class":684},[678,1296,689],{"class":688},[678,1298,1299],{"class":692}," initWorkersLogger",[678,1301,870],{"class":688},[678,1303,1304],{"class":692}," 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env",[678,1351,624],{"class":688},[678,1353,689],{"class":688},[678,1355,981],{"class":812},[678,1357,624],{"class":688},[678,1359,702],{"class":688},[678,1361,1362],{"class":705},"my-worker",[678,1364,915],{"class":688},[678,1366,696],{"class":688},[678,1368,696],{"class":688},[678,1370,821],{"class":692},[678,1372,1373,1375,1377],{"class":680,"line":815},[678,1374,722],{"class":684},[678,1376,693],{"class":725},[678,1378,728],{"class":692},[678,1380,1381],{"class":680,"line":951},[678,1382,716],{"emptyLinePlaceholder":715},[678,1384,1385,1387,1389,1391,1393,1395,1398,1402,1404,1406,1408,1411,1413,1416,1419,1421],{"class":680,"line":997},[678,1386,779],{"class":684},[678,1388,782],{"class":684},[678,1390,1304],{"class":725},[678,1392,788],{"class":692},[678,1394,792],{"class":791},[678,1396,1397],{"class":688}," (",[678,1399,1401],{"class":1400},"sHdIc","request",[678,1403,870],{"class":688},[678,1405,1349],{"class":1400},[678,1407,870],{"class":688},[678,1409,1410],{"class":1400}," ctx",[678,1412,870],{"class":688},[678,1414,1415],{"class":1400}," log",[678,1417,1418],{"class":688},")",[678,1420,798],{"class":791},[678,1422,801],{"class":688},[678,1424,1425,1428,1430,1433,1435,1437,1440,1442,1444,1447,1449,1451],{"class":680,"line":1002},[678,1426,1427],{"class":692},"  log",[678,1429,608],{"class":688},[678,1431,1432],{"class":725},"set",[678,1434,788],{"class":812},[678,1436,978],{"class":688},[678,1438,1439],{"class":812}," action",[678,1441,624],{"class":688},[678,1443,702],{"class":688},[678,1445,1446],{"class":705},"handle_request",[678,1448,915],{"class":688},[678,1450,696],{"class":688},[678,1452,821],{"class":812},[678,1454,1455,1457,1460,1462,1465,1467,1469,1472,1474,1478,1480],{"class":680,"line":1010},[678,1456,1005],{"class":684},[678,1458,1459],{"class":692}," Response",[678,1461,608],{"class":688},[678,1463,1464],{"class":725},"json",[678,1466,788],{"class":812},[678,1468,978],{"class":688},[678,1470,1471],{"class":812}," ok",[678,1473,624],{"class":688},[678,1475,1477],{"class":1476},"sfNiH"," true",[678,1479,696],{"class":688},[678,1481,821],{"class":812},[678,1483,1484,1486],{"class":680,"line":1023},[678,1485,818],{"class":688},[678,1487,821],{"class":692},[669,1489,1491],{"className":671,"code":1490,"filename":300,"language":673,"meta":674,"style":674},"\u002F\u002F Any Node, Bun or Deno entry point\nimport { initLogger } from 'evlog'\nimport { enableDiagnosticsChannel } from 'evlog\u002Fdiagnostics'\n\ninitLogger({ env: { service: 'worker' } })\nawait enableDiagnosticsChannel()\n",[597,1492,1493,1498,1517,1535,1539,1571],{"__ignoreMap":674},[678,1494,1495],{"class":680,"line":681},[678,1496,1497],{"class":750},"\u002F\u002F Any Node, Bun or Deno entry point\n",[678,1499,1500,1502,1504,1507,1509,1511,1513,1515],{"class":680,"line":712},[678,1501,685],{"class":684},[678,1503,689],{"class":688},[678,1505,1506],{"class":692}," initLogger",[678,1508,696],{"class":688},[678,1510,699],{"class":684},[678,1512,702],{"class":688},[678,1514,1277],{"class":705},[678,1516,709],{"class":688},[678,1518,1519,1521,1523,1525,1527,1529,1531,1533],{"class":680,"line":719},[678,1520,685],{"class":684},[678,1522,689],{"class":688},[678,1524,693],{"class":692},[678,1526,696],{"class":688},[678,1528,699],{"class":684},[678,1530,702],{"class":688},[678,1532,706],{"class":705},[678,1534,709],{"class":688},[678,1536,1537],{"class":680,"line":776},[678,1538,716],{"emptyLinePlaceholder":715},[678,1540,1541,1544,1546,1548,1550,1552,1554,1556,1558,1560,1563,1565,1567,1569],{"class":680,"line":804},[678,1542,1543],{"class":725},"initLogger",[678,1545,788],{"class":692},[678,1547,978],{"class":688},[678,1549,1349],{"class":812},[678,1551,624],{"class":688},[678,1553,689],{"class":688},[678,1555,981],{"class":812},[678,1557,624],{"class":688},[678,1559,702],{"class":688},[678,1561,1562],{"class":705},"worker",[678,1564,915],{"class":688},[678,1566,696],{"class":688},[678,1568,696],{"class":688},[678,1570,821],{"class":692},[678,1572,1573,1575,1577],{"class":680,"line":815},[678,1574,722],{"class":684},[678,1576,693],{"class":725},[678,1578,728],{"class":692},[588,1580,1581,1584,1585,1587,1588,1590,1591,1593],{},[597,1582,1583],{},"enableDiagnosticsChannel()"," is async because it loads ",[597,1586,599],{}," lazily, which is what keeps the built-in out of the main bundle for Convex, workerd and other non-Node targets. Events emitted before the promise settles are not published, so call it at startup rather than inside a request. Frameworks whose entry point cannot use top-level ",[597,1589,722],{}," should call it from the same place they call ",[597,1592,607],{},", and await it there.",[1595,1596,1598,1599,1601,1602,1604],"callout",{"color":1597,"icon":13},"info","This is an observation side channel, not a transport. Subscribers run synchronously and are not awaited: no batching, no retry, no ",[597,1600,652],{},". For delivery to a backend, use a ",[591,1603,623],{"href":509},"; both see the same event.",[610,1606,1608],{"id":1607},"subscribing","Subscribing",[588,1610,1611],{},"The point of the channel is that a consumer needs nothing from evlog but the channel name:",[669,1613,1616],{"className":671,"code":1614,"filename":1615,"language":673,"meta":674,"style":674},"import { channel } from 'node:diagnostics_channel'\n\n\u002F** The published message. Declared locally so this file needs no evlog import. *\u002F\ntype EvlogMessage = { event: Record\u003Cstring, unknown> & { level: string; service: string } }\n\nchannel('evlog.event').subscribe((message) => {\n  const { event } = message as EvlogMessage\n  if (event.level === 'error') metrics.increment('errors', { path: String(event.path ?? 'unknown') })\n})\n","metrics.ts",[597,1617,1618,1637,1641,1646,1708,1712,1744,1765,1835],{"__ignoreMap":674},[678,1619,1620,1622,1624,1627,1629,1631,1633,1635],{"class":680,"line":681},[678,1621,685],{"class":684},[678,1623,689],{"class":688},[678,1625,1626],{"class":692}," channel",[678,1628,696],{"class":688},[678,1630,699],{"class":684},[678,1632,702],{"class":688},[678,1634,599],{"class":705},[678,1636,709],{"class":688},[678,1638,1639],{"class":680,"line":712},[678,1640,716],{"emptyLinePlaceholder":715},[678,1642,1643],{"class":680,"line":719},[678,1644,1645],{"class":750},"\u002F** The published message. Declared locally so this file needs no evlog import. *\u002F\n",[678,1647,1648,1651,1655,1657,1659,1662,1664,1667,1670,1673,1675,1678,1681,1684,1686,1689,1691,1694,1697,1699,1701,1703,1705],{"class":680,"line":776},[678,1649,1650],{"class":791},"type",[678,1652,1654],{"class":1653},"sBMFI"," EvlogMessage",[678,1656,878],{"class":688},[678,1658,689],{"class":688},[678,1660,1661],{"class":812}," event",[678,1663,624],{"class":688},[678,1665,1666],{"class":1653}," Record",[678,1668,1669],{"class":688},"\u003C",[678,1671,1672],{"class":1653},"string",[678,1674,870],{"class":688},[678,1676,1677],{"class":1653}," unknown",[678,1679,1680],{"class":688},">",[678,1682,1683],{"class":688}," &",[678,1685,689],{"class":688},[678,1687,1688],{"class":812}," level",[678,1690,624],{"class":688},[678,1692,1693],{"class":1653}," string",[678,1695,1696],{"class":688},";",[678,1698,981],{"class":812},[678,1700,624],{"class":688},[678,1702,1693],{"class":1653},[678,1704,696],{"class":688},[678,1706,1707],{"class":688}," }\n",[678,1709,1710],{"class":680,"line":804},[678,1711,716],{"emptyLinePlaceholder":715},[678,1713,1714,1717,1719,1721,1723,1725,1728,1731,1733,1735,1738,1740,1742],{"class":680,"line":815},[678,1715,1716],{"class":1653},"channel",[678,1718,788],{"class":692},[678,1720,915],{"class":688},[678,1722,603],{"class":705},[678,1724,915],{"class":688},[678,1726,1727],{"class":692},").",[678,1729,1730],{"class":1653},"subscribe",[678,1732,788],{"class":692},[678,1734,788],{"class":688},[678,1736,1737],{"class":1400},"message",[678,1739,1418],{"class":688},[678,1741,798],{"class":791},[678,1743,801],{"class":688},[678,1745,1746,1748,1750,1752,1754,1757,1759,1762],{"class":680,"line":951},[678,1747,895],{"class":1653},[678,1749,689],{"class":688},[678,1751,1661],{"class":812},[678,1753,696],{"class":688},[678,1755,1756],{"class":692}," = ",[678,1758,1737],{"class":1653},[678,1760,1761],{"class":1653}," as",[678,1763,1764],{"class":812}," EvlogMessage\n",[678,1766,1767,1770,1772,1775,1777,1780,1782,1784,1787,1790,1792,1794,1797,1799,1801,1803,1806,1808,1811,1814,1816,1819,1822,1824,1827,1829,1832],{"class":680,"line":997},[678,1768,1769],{"class":812},"  if",[678,1771,1397],{"class":688},[678,1773,1774],{"class":692},"event.level === ",[678,1776,915],{"class":688},[678,1778,1779],{"class":705},"error",[678,1781,915],{"class":688},[678,1783,1418],{"class":688},[678,1785,1786],{"class":692}," metrics.",[678,1788,1789],{"class":812},"increment",[678,1791,788],{"class":688},[678,1793,915],{"class":688},[678,1795,1796],{"class":705},"errors",[678,1798,915],{"class":688},[678,1800,870],{"class":688},[678,1802,689],{"class":688},[678,1804,1805],{"class":812}," path",[678,1807,624],{"class":688},[678,1809,1810],{"class":1400}," String",[678,1812,1813],{"class":692},"(event",[678,1815,608],{"class":688},[678,1817,1818],{"class":692},"path ",[678,1820,1821],{"class":688},"??",[678,1823,702],{"class":688},[678,1825,1826],{"class":705},"unknown",[678,1828,915],{"class":688},[678,1830,1831],{"class":692},") ",[678,1833,1834],{"class":688},"})\n",[678,1836,1837,1839],{"class":680,"line":1002},[678,1838,818],{"class":688},[678,1840,821],{"class":692},[588,1842,1843,1844,1846,1847,1850,1851,1854],{},"Node types the published message as ",[597,1845,1826],{},", so narrow it once at the top of your handler. ",[597,1848,1849],{},"channel(name).subscribe()"," is used rather than the module-level ",[597,1852,1853],{},"subscribe()"," because it exists on every Node that evlog supports.",[588,1856,1857],{},"If you already depend on evlog and want the payload typed:",[669,1859,1862],{"className":671,"code":1860,"filename":1861,"language":673,"meta":674,"style":674},"import { subscribeToWideEvents } from 'evlog\u002Fdiagnostics'\n\nconst stop = await subscribeToWideEvents((event) => {\n  \u002F\u002F                                       ^? WideEvent\n  if (typeof event.status === 'number' && event.status >= 500) {\n    alerts.push({ path: String(event.path ?? '-'), requestId: String(event.requestId ?? '-') })\n  }\n})\n","alerts.ts",[597,1863,1864,1883,1887,1913,1918,1965,2038,2042],{"__ignoreMap":674},[678,1865,1866,1868,1870,1873,1875,1877,1879,1881],{"class":680,"line":681},[678,1867,685],{"class":684},[678,1869,689],{"class":688},[678,1871,1872],{"class":692}," subscribeToWideEvents",[678,1874,696],{"class":688},[678,1876,699],{"class":684},[678,1878,702],{"class":688},[678,1880,706],{"class":705},[678,1882,709],{"class":688},[678,1884,1885],{"class":680,"line":712},[678,1886,716],{"emptyLinePlaceholder":715},[678,1888,1889,1891,1894,1896,1898,1900,1902,1904,1907,1909,1911],{"class":680,"line":719},[678,1890,1249],{"class":791},[678,1892,1893],{"class":692}," stop ",[678,1895,1255],{"class":688},[678,1897,907],{"class":684},[678,1899,1872],{"class":725},[678,1901,788],{"class":692},[678,1903,788],{"class":688},[678,1905,1906],{"class":1400},"event",[678,1908,1418],{"class":688},[678,1910,798],{"class":791},[678,1912,801],{"class":688},[678,1914,1915],{"class":680,"line":776},[678,1916,1917],{"class":750},"  \u002F\u002F                                       ^? WideEvent\n",[678,1919,1920,1922,1924,1927,1929,1931,1934,1937,1939,1942,1944,1947,1949,1951,1953,1956,1960,1962],{"class":680,"line":804},[678,1921,1769],{"class":684},[678,1923,1397],{"class":812},[678,1925,1926],{"class":688},"typeof",[678,1928,1661],{"class":692},[678,1930,608],{"class":688},[678,1932,1933],{"class":692},"status",[678,1935,1936],{"class":688}," ===",[678,1938,702],{"class":688},[678,1940,1941],{"class":705},"number",[678,1943,915],{"class":688},[678,1945,1946],{"class":688}," &&",[678,1948,1661],{"class":692},[678,1950,608],{"class":688},[678,1952,1933],{"class":692},[678,1954,1955],{"class":688}," >=",[678,1957,1959],{"class":1958},"sbssI"," 500",[678,1961,1831],{"class":812},[678,1963,1964],{"class":688},"{\n",[678,1966,1967,1970,1972,1975,1977,1979,1981,1983,1985,1987,1989,1991,1994,1997,1999,2002,2004,2006,2008,2011,2013,2015,2017,2019,2021,2024,2026,2028,2030,2032,2034,2036],{"class":680,"line":815},[678,1968,1969],{"class":692},"    alerts",[678,1971,608],{"class":688},[678,1973,1974],{"class":725},"push",[678,1976,788],{"class":812},[678,1978,978],{"class":688},[678,1980,1805],{"class":812},[678,1982,624],{"class":688},[678,1984,1810],{"class":725},[678,1986,788],{"class":812},[678,1988,1906],{"class":692},[678,1990,608],{"class":688},[678,1992,1993],{"class":692},"path",[678,1995,1996],{"class":688}," ??",[678,1998,702],{"class":688},[678,2000,2001],{"class":705},"-",[678,2003,915],{"class":688},[678,2005,1418],{"class":812},[678,2007,870],{"class":688},[678,2009,2010],{"class":812}," requestId",[678,2012,624],{"class":688},[678,2014,1810],{"class":725},[678,2016,788],{"class":812},[678,2018,1906],{"class":692},[678,2020,608],{"class":688},[678,2022,2023],{"class":692},"requestId",[678,2025,1996],{"class":688},[678,2027,702],{"class":688},[678,2029,2001],{"class":705},[678,2031,915],{"class":688},[678,2033,1831],{"class":812},[678,2035,818],{"class":688},[678,2037,821],{"class":812},[678,2039,2040],{"class":680,"line":951},[678,2041,1060],{"class":688},[678,2043,2044,2046],{"class":680,"line":997},[678,2045,818],{"class":688},[678,2047,821],{"class":692},[588,2049,2050,2051,2054,2055,2057],{},"Fields beyond the ",[591,2052,2053],{"href":52},"base event"," are typed ",[597,2056,1826],{},", and events emitted outside a request carry no HTTP fields at all, so narrow before using them rather than casting.",[610,2059,2061],{"id":2060},"what-a-subscriber-receives","What a subscriber receives",[588,2063,2064],{},"The same object a drain receives: post-audit, post-redaction, post-enrich. Requests carry everything enrichers added: geo, user agent, trace context:",[669,2066,2069],{"className":2067,"code":2068,"language":1464,"meta":674,"style":674},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"timestamp\": \"2026-08-02T10:23:45.612Z\",\n  \"level\": \"error\",\n  \"service\": \"checkout\",\n  \"environment\": \"production\",\n  \"method\": \"POST\",\n  \"path\": \"\u002Fapi\u002Fcheckout\",\n  \"status\": 500,\n  \"duration\": \"1.20s\",\n  \"requestId\": \"4a8ff3a8-...\",\n  \"user\": { \"id\": \"usr_123\", \"plan\": \"premium\" },\n  \"error\": { \"name\": \"PaymentDeclined\", \"message\": \"Card declined\" }\n}\n",[597,2070,2071,2075,2098,2117,2137,2157,2177,2196,2210,2230,2249,2299,2346],{"__ignoreMap":674},[678,2072,2073],{"class":680,"line":681},[678,2074,1964],{"class":688},[678,2076,2077,2080,2083,2086,2088,2091,2094,2096],{"class":680,"line":712},[678,2078,2079],{"class":688},"  \"",[678,2081,2082],{"class":791},"timestamp",[678,2084,2085],{"class":688},"\"",[678,2087,624],{"class":688},[678,2089,2090],{"class":688}," \"",[678,2092,2093],{"class":705},"2026-08-02T10:23:45.612Z",[678,2095,2085],{"class":688},[678,2097,1054],{"class":688},[678,2099,2100,2102,2105,2107,2109,2111,2113,2115],{"class":680,"line":719},[678,2101,2079],{"class":688},[678,2103,2104],{"class":791},"level",[678,2106,2085],{"class":688},[678,2108,624],{"class":688},[678,2110,2090],{"class":688},[678,2112,1779],{"class":705},[678,2114,2085],{"class":688},[678,2116,1054],{"class":688},[678,2118,2119,2121,2124,2126,2128,2130,2133,2135],{"class":680,"line":776},[678,2120,2079],{"class":688},[678,2122,2123],{"class":791},"service",[678,2125,2085],{"class":688},[678,2127,624],{"class":688},[678,2129,2090],{"class":688},[678,2131,2132],{"class":705},"checkout",[678,2134,2085],{"class":688},[678,2136,1054],{"class":688},[678,2138,2139,2141,2144,2146,2148,2150,2153,2155],{"class":680,"line":804},[678,2140,2079],{"class":688},[678,2142,2143],{"class":791},"environment",[678,2145,2085],{"class":688},[678,2147,624],{"class":688},[678,2149,2090],{"class":688},[678,2151,2152],{"class":705},"production",[678,2154,2085],{"class":688},[678,2156,1054],{"class":688},[678,2158,2159,2161,2164,2166,2168,2170,2173,2175],{"class":680,"line":815},[678,2160,2079],{"class":688},[678,2162,2163],{"class":791},"method",[678,2165,2085],{"class":688},[678,2167,624],{"class":688},[678,2169,2090],{"class":688},[678,2171,2172],{"class":705},"POST",[678,2174,2085],{"class":688},[678,2176,1054],{"class":688},[678,2178,2179,2181,2183,2185,2187,2189,2192,2194],{"class":680,"line":951},[678,2180,2079],{"class":688},[678,2182,1993],{"class":791},[678,2184,2085],{"class":688},[678,2186,624],{"class":688},[678,2188,2090],{"class":688},[678,2190,2191],{"class":705},"\u002Fapi\u002Fcheckout",[678,2193,2085],{"class":688},[678,2195,1054],{"class":688},[678,2197,2198,2200,2202,2204,2206,2208],{"class":680,"line":997},[678,2199,2079],{"class":688},[678,2201,1933],{"class":791},[678,2203,2085],{"class":688},[678,2205,624],{"class":688},[678,2207,1959],{"class":1958},[678,2209,1054],{"class":688},[678,2211,2212,2214,2217,2219,2221,2223,2226,2228],{"class":680,"line":1002},[678,2213,2079],{"class":688},[678,2215,2216],{"class":791},"duration",[678,2218,2085],{"class":688},[678,2220,624],{"class":688},[678,2222,2090],{"class":688},[678,2224,2225],{"class":705},"1.20s",[678,2227,2085],{"class":688},[678,2229,1054],{"class":688},[678,2231,2232,2234,2236,2238,2240,2242,2245,2247],{"class":680,"line":1010},[678,2233,2079],{"class":688},[678,2235,2023],{"class":791},[678,2237,2085],{"class":688},[678,2239,624],{"class":688},[678,2241,2090],{"class":688},[678,2243,2244],{"class":705},"4a8ff3a8-...",[678,2246,2085],{"class":688},[678,2248,1054],{"class":688},[678,2250,2251,2253,2256,2258,2260,2262,2264,2267,2269,2271,2273,2276,2278,2280,2282,2285,2287,2289,2291,2294,2296],{"class":680,"line":1023},[678,2252,2079],{"class":688},[678,2254,2255],{"class":791},"user",[678,2257,2085],{"class":688},[678,2259,624],{"class":688},[678,2261,689],{"class":688},[678,2263,2090],{"class":688},[678,2265,2266],{"class":1653},"id",[678,2268,2085],{"class":688},[678,2270,624],{"class":688},[678,2272,2090],{"class":688},[678,2274,2275],{"class":705},"usr_123",[678,2277,2085],{"class":688},[678,2279,870],{"class":688},[678,2281,2090],{"class":688},[678,2283,2284],{"class":1653},"plan",[678,2286,2085],{"class":688},[678,2288,624],{"class":688},[678,2290,2090],{"class":688},[678,2292,2293],{"class":705},"premium",[678,2295,2085],{"class":688},[678,2297,2298],{"class":688}," },\n",[678,2300,2301,2303,2305,2307,2309,2311,2313,2316,2318,2320,2322,2325,2327,2329,2331,2333,2335,2337,2339,2342,2344],{"class":680,"line":1033},[678,2302,2079],{"class":688},[678,2304,1779],{"class":791},[678,2306,2085],{"class":688},[678,2308,624],{"class":688},[678,2310,689],{"class":688},[678,2312,2090],{"class":688},[678,2314,2315],{"class":1653},"name",[678,2317,2085],{"class":688},[678,2319,624],{"class":688},[678,2321,2090],{"class":688},[678,2323,2324],{"class":705},"PaymentDeclined",[678,2326,2085],{"class":688},[678,2328,870],{"class":688},[678,2330,2090],{"class":688},[678,2332,1737],{"class":1653},[678,2334,2085],{"class":688},[678,2336,624],{"class":688},[678,2338,2090],{"class":688},[678,2340,2341],{"class":705},"Card declined",[678,2343,2085],{"class":688},[678,2345,1707],{"class":688},[678,2347,2348],{"class":680,"line":1042},[678,2349,2350],{"class":688},"}\n",[588,2352,2353,2354,2357,2358,2361,2362,2365,2366,2369,2370,608],{},"Events emitted outside a request (",[597,2355,2356],{},"log.info({ ... })",", ",[597,2359,2360],{},"createLogger().emit()",") arrive without the HTTP fields, and events from ",[597,2363,2364],{},"log.fork()"," carry ",[597,2367,2368],{},"operation"," and ",[597,2371,2372],{},"_parentRequestId",[1595,2374,2377,2378,2381,2382,2385],{"color":2375,"icon":2376},"warning","i-lucide-triangle-alert","The event is the live object, not a copy, so mutating it mutates what drains receive. Treat it as read-only. And a subscriber that throws is ",[632,2379,2380],{},"not"," contained: ",[597,2383,2384],{},"Channel.publish()"," re-raises it as an uncaught exception on the next tick, which is fatal in most apps. Keep subscribers total.",[588,2387,2388,2389,2392],{},"In pretty mode (the dev default), tagged logs like ",[597,2390,2391],{},"log.info('auth', 'User logged in')"," are written straight to the console and never become wide events, so they do not appear on the channel. Wide events themselves are published in both modes.",[610,2394,2396],{"id":2395},"what-you-can-build","What you can build",[2398,2399,2401],"h3",{"id":2400},"an-integration-that-does-not-depend-on-evlog","An integration that does not depend on evlog",[588,2403,2404,2405,2407],{},"A package that subscribes needs the channel name and nothing else: no ",[597,2406,1277],{}," dependency, no peer range to keep in sync, no wiring in the host app beyond importing it:",[669,2409,2412],{"className":671,"code":2410,"filename":2411,"language":673,"meta":674,"style":674},"import { channel } from 'node:diagnostics_channel'\n\ntype EvlogMessage = {\n  event: Record\u003Cstring, unknown> & { timestamp: string; level: string; service: string }\n}\n\nchannel('evlog.event').subscribe((message) => {\n  const { event } = message as EvlogMessage\n\n  acme.ingest({\n    at: event.timestamp,\n    level: event.level,\n    service: event.service,\n    attributes: event,\n  })\n})\n","acme-apm\u002Fsrc\u002Fevlog.ts",[597,2413,2414,2432,2436,2446,2494,2498,2502,2530,2548,2552,2566,2581,2596,2611,2622,2629],{"__ignoreMap":674},[678,2415,2416,2418,2420,2422,2424,2426,2428,2430],{"class":680,"line":681},[678,2417,685],{"class":684},[678,2419,689],{"class":688},[678,2421,1626],{"class":692},[678,2423,696],{"class":688},[678,2425,699],{"class":684},[678,2427,702],{"class":688},[678,2429,599],{"class":705},[678,2431,709],{"class":688},[678,2433,2434],{"class":680,"line":712},[678,2435,716],{"emptyLinePlaceholder":715},[678,2437,2438,2440,2442,2444],{"class":680,"line":719},[678,2439,1650],{"class":791},[678,2441,1654],{"class":1653},[678,2443,878],{"class":688},[678,2445,801],{"class":688},[678,2447,2448,2451,2453,2455,2457,2459,2461,2463,2465,2467,2469,2472,2474,2476,2478,2480,2482,2484,2486,2488,2490,2492],{"class":680,"line":776},[678,2449,2450],{"class":812},"  event",[678,2452,624],{"class":688},[678,2454,1666],{"class":1653},[678,2456,1669],{"class":688},[678,2458,1672],{"class":1653},[678,2460,870],{"class":688},[678,2462,1677],{"class":1653},[678,2464,1680],{"class":688},[678,2466,1683],{"class":688},[678,2468,689],{"class":688},[678,2470,2471],{"class":812}," timestamp",[678,2473,624],{"class":688},[678,2475,1693],{"class":1653},[678,2477,1696],{"class":688},[678,2479,1688],{"class":812},[678,2481,624],{"class":688},[678,2483,1693],{"class":1653},[678,2485,1696],{"class":688},[678,2487,981],{"class":812},[678,2489,624],{"class":688},[678,2491,1693],{"class":1653},[678,2493,1707],{"class":688},[678,2495,2496],{"class":680,"line":804},[678,2497,2350],{"class":688},[678,2499,2500],{"class":680,"line":815},[678,2501,716],{"emptyLinePlaceholder":715},[678,2503,2504,2506,2508,2510,2512,2514,2516,2518,2520,2522,2524,2526,2528],{"class":680,"line":951},[678,2505,1716],{"class":1653},[678,2507,788],{"class":692},[678,2509,915],{"class":688},[678,2511,603],{"class":705},[678,2513,915],{"class":688},[678,2515,1727],{"class":692},[678,2517,1730],{"class":1653},[678,2519,788],{"class":692},[678,2521,788],{"class":688},[678,2523,1737],{"class":1400},[678,2525,1418],{"class":688},[678,2527,798],{"class":791},[678,2529,801],{"class":688},[678,2531,2532,2534,2536,2538,2540,2542,2544,2546],{"class":680,"line":997},[678,2533,895],{"class":1653},[678,2535,689],{"class":688},[678,2537,1661],{"class":812},[678,2539,696],{"class":688},[678,2541,1756],{"class":692},[678,2543,1737],{"class":1653},[678,2545,1761],{"class":1653},[678,2547,1764],{"class":812},[678,2549,2550],{"class":680,"line":1002},[678,2551,716],{"emptyLinePlaceholder":715},[678,2553,2554,2557,2559,2562,2564],{"class":680,"line":1010},[678,2555,2556],{"class":1653},"  acme",[678,2558,608],{"class":688},[678,2560,2561],{"class":1653},"ingest",[678,2563,788],{"class":692},[678,2565,1964],{"class":688},[678,2567,2568,2571,2573,2575,2577,2579],{"class":680,"line":1023},[678,2569,2570],{"class":812},"    at",[678,2572,624],{"class":688},[678,2574,1661],{"class":1653},[678,2576,608],{"class":688},[678,2578,2082],{"class":1653},[678,2580,1054],{"class":688},[678,2582,2583,2586,2588,2590,2592,2594],{"class":680,"line":1033},[678,2584,2585],{"class":812},"    level",[678,2587,624],{"class":688},[678,2589,1661],{"class":1653},[678,2591,608],{"class":688},[678,2593,2104],{"class":1653},[678,2595,1054],{"class":688},[678,2597,2598,2601,2603,2605,2607,2609],{"class":680,"line":1042},[678,2599,2600],{"class":812},"    service",[678,2602,624],{"class":688},[678,2604,1661],{"class":1653},[678,2606,608],{"class":688},[678,2608,2123],{"class":1653},[678,2610,1054],{"class":688},[678,2612,2613,2616,2618,2620],{"class":680,"line":1048},[678,2614,2615],{"class":812},"    attributes",[678,2617,624],{"class":688},[678,2619,1661],{"class":1653},[678,2621,1054],{"class":688},[678,2623,2624,2627],{"class":680,"line":1057},[678,2625,2626],{"class":688},"  }",[678,2628,821],{"class":692},[678,2630,2631,2633],{"class":680,"line":1063},[678,2632,818],{"class":688},[678,2634,821],{"class":692},[669,2636,2639],{"className":671,"code":2637,"filename":2638,"language":673,"meta":674,"style":674},"import 'acme-apm\u002Fevlog'\n","the host app",[597,2640,2641],{"__ignoreMap":674},[678,2642,2643,2645,2647,2650],{"class":680,"line":681},[678,2644,685],{"class":684},[678,2646,702],{"class":688},[678,2648,2649],{"class":705},"acme-apm\u002Fevlog",[678,2651,709],{"class":688},[588,2653,2654,2655,608],{},"The same shape works for an internal library shared across services: one package subscribes, every service that imports it reports, and none of them touch ",[597,2656,607],{},[2398,2658,2660],{"id":2659},"counters-and-alerts-next-to-your-app","Counters and alerts next to your app",[588,2662,2663],{},"A subscriber is a plain function, so anything you can compute in-process you can compute here, without giving up the drain slot, which stays free for shipping events to your backend:",[669,2665,2668],{"className":671,"code":2666,"filename":2667,"language":673,"meta":674,"style":674},"import { channel } from 'node:diagnostics_channel'\n\nconst errorsByPath = new Map\u003Cstring, number>()\n\nchannel('evlog.event').subscribe((message) => {\n  const { event } = message as { event: Record\u003Cstring, unknown> & { level: string } }\n  if (event.level !== 'error') return\n\n  const path = String(event.path ?? 'unknown')\n  errorsByPath.set(path, (errorsByPath.get(path) ?? 0) + 1)\n\n  if (typeof event.status === 'number' && event.status >= 500) {\n    void pager.notify(`5xx on ${path}`, { requestId: event.requestId })\n  }\n})\n\nexport function errorCounts(): Record\u003Cstring, number> {\n  return Object.fromEntries(errorsByPath)\n}\n","observability.ts",[597,2669,2670,2688,2692,2719,2723,2753,2802,2828,2832,2860,2906,2910,2948,2995,2999,3005,3009,3037,3056],{"__ignoreMap":674},[678,2671,2672,2674,2676,2678,2680,2682,2684,2686],{"class":680,"line":681},[678,2673,685],{"class":684},[678,2675,689],{"class":688},[678,2677,1626],{"class":692},[678,2679,696],{"class":688},[678,2681,699],{"class":684},[678,2683,702],{"class":688},[678,2685,599],{"class":705},[678,2687,709],{"class":688},[678,2689,2690],{"class":680,"line":712},[678,2691,716],{"emptyLinePlaceholder":715},[678,2693,2694,2696,2699,2701,2703,2706,2708,2710,2712,2715,2717],{"class":680,"line":719},[678,2695,1249],{"class":791},[678,2697,2698],{"class":692}," errorsByPath ",[678,2700,1255],{"class":688},[678,2702,1258],{"class":688},[678,2704,2705],{"class":725}," Map",[678,2707,1669],{"class":688},[678,2709,1672],{"class":1653},[678,2711,870],{"class":688},[678,2713,2714],{"class":1653}," number",[678,2716,1680],{"class":688},[678,2718,728],{"class":692},[678,2720,2721],{"class":680,"line":776},[678,2722,716],{"emptyLinePlaceholder":715},[678,2724,2725,2727,2729,2731,2733,2735,2737,2739,2741,2743,2745,2747,2749,2751],{"class":680,"line":804},[678,2726,1716],{"class":725},[678,2728,788],{"class":692},[678,2730,915],{"class":688},[678,2732,603],{"class":705},[678,2734,915],{"class":688},[678,2736,1418],{"class":692},[678,2738,608],{"class":688},[678,2740,1730],{"class":725},[678,2742,788],{"class":692},[678,2744,788],{"class":688},[678,2746,1737],{"class":1400},[678,2748,1418],{"class":688},[678,2750,798],{"class":791},[678,2752,801],{"class":688},[678,2754,2755,2757,2759,2761,2763,2765,2768,2770,2772,2774,2776,2778,2780,2782,2784,2786,2788,2790,2792,2794,2796,2798,2800],{"class":680,"line":815},[678,2756,895],{"class":791},[678,2758,689],{"class":688},[678,2760,1661],{"class":692},[678,2762,696],{"class":688},[678,2764,878],{"class":688},[678,2766,2767],{"class":692}," message",[678,2769,1761],{"class":684},[678,2771,689],{"class":688},[678,2773,1661],{"class":812},[678,2775,624],{"class":688},[678,2777,1666],{"class":1653},[678,2779,1669],{"class":688},[678,2781,1672],{"class":1653},[678,2783,870],{"class":688},[678,2785,1677],{"class":1653},[678,2787,1680],{"class":688},[678,2789,1683],{"class":688},[678,2791,689],{"class":688},[678,2793,1688],{"class":812},[678,2795,624],{"class":688},[678,2797,1693],{"class":1653},[678,2799,696],{"class":688},[678,2801,1707],{"class":688},[678,2803,2804,2806,2808,2810,2812,2814,2817,2819,2821,2823,2825],{"class":680,"line":951},[678,2805,1769],{"class":684},[678,2807,1397],{"class":812},[678,2809,1906],{"class":692},[678,2811,608],{"class":688},[678,2813,2104],{"class":692},[678,2815,2816],{"class":688}," !==",[678,2818,702],{"class":688},[678,2820,1779],{"class":705},[678,2822,915],{"class":688},[678,2824,1831],{"class":812},[678,2826,2827],{"class":684},"return\n",[678,2829,2830],{"class":680,"line":997},[678,2831,716],{"emptyLinePlaceholder":715},[678,2833,2834,2836,2838,2840,2842,2844,2846,2848,2850,2852,2854,2856,2858],{"class":680,"line":1002},[678,2835,895],{"class":791},[678,2837,1805],{"class":692},[678,2839,878],{"class":688},[678,2841,1810],{"class":725},[678,2843,788],{"class":812},[678,2845,1906],{"class":692},[678,2847,608],{"class":688},[678,2849,1993],{"class":692},[678,2851,1996],{"class":688},[678,2853,702],{"class":688},[678,2855,1826],{"class":705},[678,2857,915],{"class":688},[678,2859,821],{"class":812},[678,2861,2862,2865,2867,2869,2871,2873,2875,2877,2880,2882,2885,2887,2889,2891,2893,2896,2898,2901,2904],{"class":680,"line":1010},[678,2863,2864],{"class":692},"  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