Node.js Q & A


What is the difference between PUT and POST in Node.js?

In Node.js and web development in general, both PUT and POST are HTTP methods used to send data to the server. However, they are used in different contexts and have distinct purposes:


  • POST (Create): POST is used to submit data to the server to create a new resource. When you make a POST request, the server typically processes the request body and creates a new resource based on the provided data. POST requests are commonly used for form submissions, file uploads, and creating new records in databases.
  • PUT (Update): PUT is used to send data to the server to update an existing resource or create a new resource if it doesn’t exist. When you make a PUT request, the server expects the request body to contain the complete representation of the resource being updated. If the resource exists, it is updated with the provided data. If the resource doesn’t exist, a new resource is created. PUT requests are idempotent, meaning that multiple identical PUT requests have the same effect as a single request.


The main difference between PUT and POST in Node.js is their intended use: POST is used to create new resources, while PUT is used to update existing resources.

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