![]() ![]() These are things that can be read by the API to modify its behavior. HTTP Requests can have any number of headers attached to them. This is important as most public APIs require some sort of authentication to prevent spamming or abuse. You can specify a Bearer Token or even allow for OAuth2.0 (covered in a later section). It allows you to easily handle multiple types of authorization protocols. If you type parameters into Postman they will be added to the URL automatically. This is most commonly done with GET requests. Here is where you can specify any particular parameters you wish to add to your request. ![]() This is the target of the request and will depend on thee desired functionality you are looking to examine. This is where you specifically the kind of request you will be sending. Each request is made up of multiple parts. Once you have created a collection in Postman you will need to start adding requests. With this in mind, it wouldn’t be a bad idea to have a few requests in the testing suite to delete all the records it created. This will help prevent your tests from making any assumptions about the current state of the data. It is a good idea to undo any changes your testing suite has made to the server data. Therefore if you want to test to see if the number of records increases by 1 with each create request you will need to know the number of records before and after. Everything could appear correct with the response, but in fact no changes have been made to the data. Just as it is not enough to test just the status codes, it is also not enough to simply test the response body. The only way to verify you wrote the code correctly is to test it, so get in the habit now. You will eventually be creating your own API with status code responses that you yourself write. While it may seem like extra work to test more than status codes it is important to remember the goal of this course. ![]() To do so would go against the assume nothing mantra. When testing an API you cannot simply rely on status codes. For example, after verifying that a GET request for a record works, you can then use that same GET request when testing to see if an UPDATE request was successful. Only once you have proven that the simple stuff works you can then “safely” use that same functionality in later tests. This means having tests to verify simple GET and POST statements work before you move onto more complex API functionality. Your testing suite should be data/state agnostic, meaning it runs no matter the current state of data on the serverĪs mentioned above, you must begin by testing the most basic functionalities of an API.You cannot assume anything about the API works correctly so you must test even the most basic functionality.When testing an API it is best to approach developing a testing suite without any preconceived notions. When creating a testing suite there are some things to consider to make your work more streamlined and thorough. Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's configuration tag to point to a custom error page URL.This module will look at the more practical aspects of writing API tests with the Postman testing tool. This tag should then have its "mode" attribute set to "Off". It could, however, be viewed by browsers running on the local server machine.ĭetails: To enable the details of this specific error message to be viewable on remote machines, please create a tag within a "web.config" configuration file located in the root directory of the current web application. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). Runtime Error Description: An application error occurred on the server. Runtime Error Server Error in '/' Application. ![]()
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