Files
edr-platform/apps/edr-passenger-api/src/modules/payments/payment-events.consumer.ts

75 lines
3.3 KiB
TypeScript

import { Injectable, Logger, SetMetadata } from '@nestjs/common';
import { ModuleRef } from '@nestjs/core';
import { Nack, RabbitSubscribe } from '@golevelup/nestjs-rabbitmq';
import { IsPublic } from '@tria-plc/api-common/modules/auth/decorators/public.decorator';
import {
PAYMENT_EVENTS_DLX,
PAYMENT_EVENTS_EXCHANGE,
PAYMENT_QUEUES,
PaymentEvent,
PaymentService,
paymentServiceBindingPattern,
} from '@edr/types';
import { PaymentEventDto } from './internal-payments.dto';
import { PaymentsService } from './payments.service';
const PASSENGER_QUEUE = PAYMENT_QUEUES[PaymentService.PASSENGER];
// @tria-plc/auditlog's global ClientLoggerInterceptor (present in deployed builds)
// crashes on non-HTTP contexts (`originalUrl.split` on a RabbitMQ message) and the
// resulting requeue storm blocks payment.succeeded forever. Its IgnoreLoggerAudit
// decorator is just this metadata key — set it directly so we don't need the package.
@SetMetadata('ignoreAuditLogger', true)
@Injectable()
export class PaymentEventsConsumer {
private readonly logger = new Logger(PaymentEventsConsumer.name);
// IMPORTANT: do NOT constructor-inject PaymentsService here. It is a REQUEST/TRANSIENT-scoped
// provider (its scope bubbles up from a scoped dependency), so it has no singleton instance at
// bootstrap. Constructor-injecting it makes THIS consumer scoped too — and golevelup binds the
// @RabbitSubscribe handler to the singleton instance it discovers at bootstrap. With no such
// instance, the subscription still registers but delivered messages are never dispatched to
// handle(): they pile up unacked and the booking never confirms. Injecting only the lightweight
// (singleton) ModuleRef keeps this consumer a clean singleton; PaymentsService is resolved per
// message via resolve() (get() throws for scoped providers).
constructor(private readonly moduleRef: ModuleRef) {}
@IsPublic()
@RabbitSubscribe({
exchange: PAYMENT_EVENTS_EXCHANGE,
routingKey: paymentServiceBindingPattern(PaymentService.PASSENGER), // payment.passenger.*
queue: PASSENGER_QUEUE.main,
queueOptions: {
durable: true,
deadLetterExchange: PAYMENT_EVENTS_DLX,
},
})
async handle(event: PaymentEvent): Promise<Nack | void> {
// Logged the instant RabbitMQ delivers the message, before any DB work — proves the
// payment -> passenger broker connection works even if processing later fails/hangs.
this.logger.log(
`RECEIVED ${event.eventType} (${event.eventId}) ref=${event.referenceId} via RabbitMQ`,
);
try {
// resolve() (not get()) because PaymentsService is scoped — get() throws for scoped providers.
const paymentsService = await this.moduleRef.resolve(
PaymentsService,
undefined,
{ strict: false },
);
const result = await paymentsService.handlePaymentEvent(
event as unknown as PaymentEventDto,
);
this.logger.log(
`processed ${event.eventType} (${event.eventId}) ref=${event.referenceId}: ${JSON.stringify(result)}`,
);
} catch (err) {
const message = err instanceof Error ? err.message : String(err);
this.logger.error(
`DEAD-LETTERING ${event.eventType} (${event.eventId}) ref=${event.referenceId}: ${message}`,
);
return new Nack(false);
}
}
}