![]() ![]() A request will represent an API endpoint. ![]() Next, we’ll need to create requests that will hold our tests. On the other hand, integration tests check specific flows that can be made up of two or more endpoints to determine if the different components involved in a user flow work as expected.Īt this point, your workspace should show the collection in the left panel: A functional test checks the behavior of a single API endpoint and ensures that the request-response cycle conforms to the expectation. ![]() We’ll create a new collection called Delivery-API Tests where we’ll write some functional and integration tests for a delivery API that we’ll create later in this section. Then, navigate to your Postman workspace to get started. If you don’t already have one, create a free account. To follow along with this tutorial, you’ll need a Postman account. As a developer, you’ve most likely used Postman to make requests to your backend application while developing locally, but you can do even more with it. Postman is a platform that provides a complete set of tools for building, testing, documenting, and mocking APIs. Therefore, you should run tests as often as your codebase changes. Repetitive tasks like this are often good candidates for automation.Īutomated tests give you the confidence to make changes and add new features to your application because you can always rely on your tests to point out bugs that you might have introduced. Writing tests helps to ensure the predictability and correctness of your applications at any given time. Why should you automate your API tests?.In this article, we’ll explore how to write automated functional and integration tests for your APIs that will run in a CI/CD pipeline. There are many different ways you can test your APIs, and whichever method or combination of methods you choose will ultimately depend on your current business needs, available resources, and implementation details. Therefore, it’s crucial to test your APIs extensively to ensure the correctness and predictability of your application. However, the consequence of this type of system is that the failure of one component can have a significant impact on the other components that depend on it. How to automate API tests with PostmanĪPIs are the driving force behind virtually every application you’ll build as a developer, serving as a channel of communication between two or more software components. So, depending on what your day to day problems are you should use a different tool.Mayowa Ojo Follow Software developer with a knack for exploring new technology and writing about my experience. easily handle oAuth and other authentication forms out of the boxīut you will suffer (a lot) trying to use Postman to Have and share environment variables to change, for example, between production and development API urls, password, params, etc (I know, a CLI also lets you do that, but it soooo simple to just select and preview the environment variables from the list) Save requests and share them (including a collection of requests) See all the request history that you can easily reply any of them with one click Taking that into consideration, Postman's web interface lets you I agree that CLI are awesome and you can do way more using it that with any other UI (specially a web one), but taking HTTP API testing as an example, postman lets you do a bunch of stuff that are so simple with one click that I can see some people not wanting to dive in the CLI world, write a bunch of stuff and also having to store environment data for requests with extra files (I think thats where the 'difficult' from the previous comment comes along, but that's just me guessing.) ![]()
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