If you look back at the website, you got a list of items that matched your search term, and this is in fact the same list, with the same items. The response is in the JSON format, which is pretty standard for most API's nowadays. Make sure you download the correct version, but it generally already selects the one based on your system: Installing Postman is as simple as going to their website, downloading it and running the. This can be countered with an internal system or pipeline, like mentioned with newman. Postman will return errors when it can't read a file, which you can't do when manually running a request - which is mostly what you will do when implementing a test.Īlso, while it is a pro that it is free, it's premium features lock monitoring and automated calls without any external programs behind a fee. While you can use files for Data Driven Testing, you have to go the extra mile to design your tests to work without the use of one. Has a console that is based on the one Google Chrome has, allowing you to easily debug while implementing tests.Allows use of files for Data Driven Testing.Allows using different sets of variables to test different setups and dynamic responses.Allows storing variables from responses for future use.Developers can use it as a quick way to test the endpoint while its still a work-in-progress, especially combined with the previous bullet-point.Interface allows importing endpoints from Swagger or RAML files, as a starting point for tests, which shortens the amount of time needed to make a request.Very easy to share your test collections, even when they are work-in-progress.Can be run on Mac, Windows, Chrome Apps and Linux.Test collections can be exported and run via command line with its Node.js package, newman, which in turn can be integrated with a CI/CD system.You can also make reusable tests without needing to run them automatically, or integrate them with anything.You can make automated test collections relatively easily and quickly. It allows you to very quickly send requests to the API you're testing. One of the biggest reasons for this is - you don't have to learn a new language and will only ever need JavaScript, regardless of the language which the API is written in. While there are other tools available ( SoapUI, Katalon, Tricentis), Postman stands out as one of the more beginner friendly tools you can use to start testing your API. This time around, the response would be that you successfully (or unsuccessfully) completed the payment. You can choose to do this using an API, which simply 'fetches' this data from the server.Īnother example would be - you want to make a payment to someone (request), and the receiver's data is sent to the server based on your input, again via an API. This is practically the backbone of the Internet and how we interact with applications/how applications interact with each other.Ī more specific example would be - your application has a GUI where you can enter a movie title, and it returns results (response), based on what you wrote (request). It allows you to send an HTTP Request in order to get an HTTP Response, in more technical terms. In very broad terms, it allows two pieces of software to interact with one another, in order to access data, or a part of the other program's functionality. What is an API?įirst and foremost, to know how to test an API, you must know what an API is. While this is a good way to find anything that might break on the user facing side of the application, due to misuse - what is being neglected is the fact that APIs which process your requests aren't being adequately tested this way. Testing an application means more than just clicking around until something breaks or trying different inputs until something isn't working right.
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