Functions, Modules, and Error Handling
Learn to shape backend functions and modules, handle failures clearly, and build services that are easier to test, operate, and change.
Learn to shape backend functions and modules, handle failures clearly, and build services that are easier to test, operate, and change.
Write API examples, schemas, and error docs that help developers send valid requests, handle failures, and understand exactly what a response means.
Design consistent API request and response envelopes, validation errors, and problem details so client developers can handle success and failure reliably.
Design and implement Dead Letter Queues for reliable message processing. Learn DLQ patterns, retry strategies, monitoring, and recovery workflows.