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Building a Back-End Application with NestJS

Updating Resources by ID

Explore the process of updating resources by their unique ID in a NestJS REST API. Learn to implement the PATCH method for partial updates, distinguish it from PUT, and handle update logic in controllers and services.

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Now that we know how to find books by their unique identifier, imagine the scenario where one of our books needs an update. Perhaps the author released a new edition, or there’s a change in its publication details. In this section, we’ll explore the process of updating the information for a specific book using its unique identifier.

The PUT or PATCH method

To make an update operation for a resource, such as a book, we often face a decision between two HTTP verbs: PUT or PATCH. Let’s provide a brief explanation of these verbs in the context of our use case:

  • The PUT method replaces a ...