@byndyusoft/nest-opentracing
v2.4.0
Published
Nest.js implementation of opentracing
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nest-opentracing
Implementation of Distributed Tracing for Nest.js modules.
So far only the express framework is supported.
Usage
Installing
npm i @byndyusoft/nest-opentracing @nestjs/axios @nestjs/common axios express
Initialization
Import tracing module in your root module just once.
Jaeger tracer
import { JaegerTracingModule } from "@byndyusoft/nest-opentracing";
@Module({
imports: [JaegerTracingModule.forRoot({ applyRoutes: ["v1/*"], ignoreRoutes: [] })],
controllers: [AppController],
})
export class AppModule {}
Custom tracer
import { OpenTracingModule } from "@byndyusoft/nest-opentracing";
@Module({
imports: [
OpenTracingModule.forRootAsync({
useFactory: () => ({
tracer: initSomeTracer(),
applyRoutes: ["v1/*"],
ignoreRoutes: [],
}),
}),
],
controllers: [AppController],
})
export class AppModule {}
Log request/response bodies
import { OpenTracingModule } from "@byndyusoft/nest-opentracing";
@Module({
imports: [
OpenTracingModule.forRootAsync({
useFactory: () => ({
applyRoutes: ["v1/*"],
ignoreRoutes: [],
logBodies: true,
}),
}),
],
controllers: [AppController],
})
export class AppModule {}
Tracing Nest.js HttpModule
import { JaegerTracingModule, TracedHttpModule } from "@byndyusoft/nest-opentracing";
@Module({
imports: [
JaegerTracingModule.forRoot({ applyRoutes: [AppController], ignoreRoutes: [], logBodies: true }),
TracedHttpModule.registerAsync({
useFactory: () => ({
logBodies: true,
}),
}),
],
controllers: [AppController],
})
export class AppModule {}
Configuration
Jaeger tracer
Configures by Jaeger environment variables and next variables:
npm_package_version
NAMESPACE
NODE_ENV
Traced HTTP module
TracedHttpModule
can be configured via registerAsync
pattern.
import { JaegerTracingModule, TracedHttpModule } from "@byndyusoft/nest-opentracing";
@Module({
imports: [
TracedHttpModule.registerAsync({
useFactory: () => ({
logBodies: true,
}),
}),
],
controllers: [AppController],
})
export class AppModule {}
Async functions tracing
import { TracingService } from "@byndyusoft/nest-opentracing";
@Controller()
class AppController {
constructor(private readonly tracingService: TracingService) {}
@Get("foo")
async bar() {
/* some code here */
const asyncResult = await this.tracingService.traceAsyncFunction(
"description",
async () => await someAsyncAction("foo", "bar"),
);
/* some code here */
}
}