How to log stacktrace on NestJS + GraphQL? - nestjs

Question

I'm trying out NestJS + GraphQL using Apollo underneath. When I set the Apollo 'debug' option to be true, I can see the stacktrace in the response but I cannot find a way to log this stacktrace in our application logs.
I would like to have it in the log to troubleshoot issues in production. Is there a way to do this?

Answer 1

Here's the ApolloServerPlugin I use
import { Plugin } from '#nestjs/apollo';
import { Logger } from '#nestjs/common';
import {
ApolloServerPlugin,
GraphQLRequestListener,
} from 'apollo-server-plugin-base';
import {
BaseContext,
GraphQLRequestContext,
GraphQLRequestContextWillSendResponse,
} from 'apollo-server-types';
import * as util from 'util';
#Plugin()
export class LoggingPlugin implements ApolloServerPlugin {
constructor(private readonly logger: Logger) {}
async requestDidStart(
requestContext: GraphQLRequestContext,
): Promise<GraphQLRequestListener> {
const thatLogger = this.logger;
if (requestContext.request.operationName !== 'IntrospectionQuery') {
thatLogger.log(
`request query: ${requestContext.request.query || 'undefined'}`,
);
}
return {
async willSendResponse(
requestContextWillSendResponse: GraphQLRequestContextWillSendResponse<BaseContext>,
): Promise<void> {
if (
requestContextWillSendResponse.request.operationName !==
'IntrospectionQuery'
) {
if (!requestContextWillSendResponse.errors) {
thatLogger.log(`response without any errors`);
} else {
const errors = requestContextWillSendResponse.errors.concat();
const responseErrors =
requestContextWillSendResponse.response.errors?.concat();
if (errors && responseErrors) {
for (let i = 0; i < errors.length; i++) {
const result = {
...responseErrors[i],
stack: errors[i].stack,
};
if (result.extensions) {
delete result.extensions.exception;
}
if (
result.extensions &&
result.extensions.code !== 'INTERNAL_SERVER_ERROR'
) {
thatLogger.warn(
`response with errors: ${util.inspect(result, {
depth: 4,
})}`,
);
} else {
thatLogger.error(
`response with errors: ${util.inspect(result, {
depth: 4,
})}`,
);
}
}
}
}
}
},
};
}
}

Answer 2

I was able to do this using ApolloServerPlugin.