NestJS · Senior · Question 70 of 75

How can Nest consume messages from a broker it has no built-in transport for, like AWS SQS?

1Poll the broker from a controller
2It's impossible; only built-in transports work
✓Correct answer: Write a custom transporter implementing CustomTransportStrategy (server) and a matching client, then use @MessagePattern/@EventPattern as usual

Explanation

Community packages exist for SQS, Pub/Sub and others. A custom strategy keeps handler code transport-agnostic.

Further reading

NestJS: Microservices ↗

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