otel-nestjs-instrumentation/dist/otel-context-guard.js

Comprehensive OpenTelemetry instrumentation for NestJS applications - SQS, Kafka, HTTP/2, cron jobs and custom protocols

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.OtelContextGuard = void 0;
const common_1 = require("@nestjs/common");
const stream_1 = require("stream");
const internal_1 = require("./internal");
let OtelContextGuard = class OtelContextGuard {
    emitter;
    context;
    constructor(emitter, context) {
        this.emitter = emitter;
        this.context = context;
    }
    canActivate(context) {
        const transactionName = (0, internal_1.getTransactionName)(context);
        try {
            let traceId = internal_1.otelInstrumentation.getCurrentTransactionId();
            if (traceId)
                return true;
            traceId = internal_1.otelInstrumentation.create(transactionName, context);
            if (traceId) {
                this.context.customTransactionId = traceId;
                this.emitter.emit('spanStarted', traceId, context);
            }
        }
        catch (error) {
            this.emitter.emit('spanStartFailed', error);
        }
        return true;
    }
};
exports.OtelContextGuard = OtelContextGuard;
exports.OtelContextGuard = OtelContextGuard = __decorate([
    (0, common_1.Injectable)(),
    __param(0, (0, common_1.Inject)(internal_1.emitterSymbol)),
    __metadata("design:paramtypes", [stream_1.EventEmitter,
        internal_1.InternalContext])
], OtelContextGuard);
//# sourceMappingURL=otel-context-guard.js.map