# Testing in Postman

#### What is Postman

Postman is an app for easy RESTful API exploration. You can save multiple sets of credentials (as environments) so you can quickly and easily test API calls in sandbox and production.

#### Install Postman & Import Collection

A collection is a predefined list of API calls that will help you get up and running quicker.
Click Run in Postman button below to install/open Postman and import collection

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[![Run In Postman](https://run.pstmn.io/button.svg)](https://app.getpostman.com/run-collection/33779584-7bc82192-0fa9-4ab9-94f8-6155a855a9e5?action=collection%2Ffork&source=rip_markdown&collection-url=entityId%3D33779584-7bc82192-0fa9-4ab9-94f8-6155a855a9e5%26entityType%3Dcollection%26workspaceId%3D04a75305-9874-4f43-9e0c-adde5a239fbc)

#### Edit Collection Variables

Edit the following variables in your new `Collection` :

- `clientId` - provided by Yellow Dog
- `userName` - provided by Yellow Dog
- `password` - provided by Yellow Dog


 

Right click on the collection and select edit

![Edit Collection](https://yds-image-hosting.s3.amazonaws.com/edit_collection.png)

 

#### Adding Environment and variables

Click the `Variables` tab and fill in (clientId, userName, password)

![Click variables tab](https://yds-image-hosting.s3.amazonaws.com/collection_variables.png)



#### Making First API Call

After the collection has been imported and all variables are set you are now ready to make your first API call using Postman! Look at the pictures below for an example.



Making first api call with Items. Click `Items->Get All` then Send (Top Right).

![Making Items api call](https://yds-image-hosting.s3.amazonaws.com/making_first_api_call.png)