Getting started with Postman
REST API — Response Codes and Statuses
200 OK | The request was successfully completed
201 Created | A new resource was successfully created.
400 Bad Request | The request was invalid.
401 Unauthorized | Not include an auth token or the auth token was expired.
403 Forbidden | The client did not have permission to access the requested resource.
404 Not Found | The requested resource was not found.
500 Internal Server Error | Not completed due to an internal error on the server side.
503 Service Unavailable | The server was unavailable.
What is Postman?
Postman is an API client. It is used for develop, test share and document APIs.
Main Features
- Scalability
- Accessibility
- Usage of Collections
- Usage of Environments
- Usage of Variables
- Creation of Tests
- Automation Capability
- Debugging Capability
- Continuous Integration
How to download postman?
https://www.postman.com/downloads/
Postman UI
Mainly we can see the following elements in Postman UI.
- New : Create Request, Collection, Environment and other advanced blocks
- Import : Import already created Collections and Environment as file, folder, link or raw test
- Runner : Execute automation tests
- Open New : Open in new tab, postman window or runner window
- My Workspace : Create individual or team workspace
- Invite : Invite others
- History : Maintain a track of previous actions
- Collections : User defined directory structure to organize tests
- Plus (+) icon : To add new request
Can select all available REST API types such as GET, POST..
- Enter request URL: Point the target endpoint
- Send: To send request to target endpoint
- Request Tab : Title of the working request
- HTTP Request : List of request types
- Request URL : Define target end point
- Save : Save workspace changes
- Params : Define request parameters
- Authorization : Define required authorization credentials (eg: User name, Password) for target APIs
- Header : Define request header details
- Body : Define actual request body. Basically use in POST request type
- Pre-request Script: Setup requests run prior to actual request
- Tests : Setup requests run parallel to request
Once you downloaded and installed postman you will see this interface.
First we can create a workspace on postman.
Here you can simply click on the “workspace” drop down and click on the “New workspace” button.
We can give a name for the workspace like the above.
Once we create a workspace we will navigate to the following interface.
Let’s see how to work with APIs in postman
