How to generate API documentation using Postman?

Postman is a popular API testing tool that is used to simplify the process of developing and testing APIs (Application Programming Interface). API acts as a bridge between two software applications which enables them to communicate and share data. In this article, you will learn how to generate API documentation using Postman.

Prerequisites

• Understanding of APIs and HTTP Requests.
• Installation of Postman.
• Knowledge of API Development.

Steps to Generate API Documentation

Step 1: Download and Open the Postman

Step 2: Create a Collection

Click on the collection tab and then click on the plus sign or create collection button. Then give it a name in this case we are naming it GeeksforGeeks.

Step 3 : Add the requests to the collection.

Click on the three dot on the collection name, and select the add request option. Give it a proper name according to its function.

Now we have named out request get users, and used a demo API

And when we click on the send button, we can here see the output, in the json format

Step 3: Add Description

Click on the three dot on the right side of the collection name, in this case GeeksforGeeks and then click on the view documentation.

Here in the description section of the collection add a proper documentation and in the request add a proper description too.

Step 4: Add Environment Variable ( Optional )

Click on the collection name then on the right side click on the variables tab, then add proper requied varialbe with variable name and its value.

And we can use that variable as shown in the image below.

Step 5: Publish Documentation

Click on the three dot on the collection name and select the view documentation section.

Now add some decription about the collection and requests. and then click on the publish button, it will take u too the webpage and from there we can add some more information to the documentation.

Now it will take you to the web page from there add some details accordingly and then click on the publish button, and voila your API documentation is now generated and is published.

And when the Document get pulished we can share it with the given the links in the documentation.

In this final output we can see the whole process at one.