API Validation: Why You Need It
Tags: api, beginners, tutorial, webdev
Published: 2022-07-17 17:06:26

###API Validation: Why You Need It
API validation is important because it allows you to ensure that your API is functioning correctly. By validating your API, you can catch errors and ensure that your API is working as expected. API validation is essential for ensuring that your API is stable and reliable.
API validation can be performed using a number of different tools. The most common tool for performing API validation is the use of unit tests. Unit tests allow you to test individual pieces of code to ensure that they are functioning correctly. Unit tests are typically written by developers and are used to test code before it is deployed to production.
Another tool that can be used for performing API validation is the use of integration tests. Integration tests allow you to test how different parts of your system work together. Integration tests are typically written by testers and are used to test code after it has been deployed to production.
API validation is important because it allows you to ensure that your API is functioning correctly. By validating your API, you can catch errors and ensure that your API is working as expected. API validation is essential for ensuring that your API is stable and reliable.
###What is API validation? 
API validation is the process of verifying that an API meets the requirements for functionality, performance and security. This can be done manually or automatically, but automated API validation is generally preferred as it is more efficient and can be more comprehensive. API validation tools can check for a wide variety of issues, such as incorrect responses, missing or incorrect headers, and security vulnerabilities.
###The importance of API validation 
API validation is a process of verifying that an API meets its requirements and that it functions as expected. The purpose of API validation is to ensure that the API is fit for purpose and that it works as intended. API validation can be done manually or automatically, and it is typically done during the development process. Automated API validation can be done using tools such as SoapUI.
###How to validate your APIs 
I recommend using either SoapUI or Postman, you first need to create a project. A project is a collection of tests and/or requests that you can run against an API. Once you have created a project, you can start adding tests or requests to it. 
####SoapUI

- To create a project in SoapUI, you need to select the File > New Project option from the menu. This will open the New Project dialog box. In the New Project dialog box, you need to specify the name of the project, the description, and the initial WSDL or Swagger file. Once you have specified these details, you can click the OK button to create the project.

- To add a test in SoapUI, you need to select the Test Case node in the navigator and then click on the Add button in the toolbar. This will open the Add TestCase dialog box. In this dialog box, you need to specify the name of the test case and its description. Once you have specified these details, you can click on the Create button to add the test case.

####Postman
- To create a project in Postman, you need to select the File > New > Collection option from the menu. This will open the New Collection dialog box. In the New Collection dialog box, you need to specify the name of the collection and its description. Once you have specified these details, you can click the Create button to create the collection.

- To add a request in Postman, you need to select the Collection node in which you want to add it and then click on the Add Request button in the toolbar. This will open up a new tab where you can specify all of the details for your request, such as its method (e.g., GET, POST), its URL, its headers, and its body (if applicable). Once you have specified all of these details, you can click on the Send button to make your request.

After adding tests or requests to your project, you can run them by selecting them and clicking on the Run button in either SoapUI or Postman. When your tests or requests are run, they will be executed against your API and their results will be displayed in either tool. These results will #include things like whether or not your test passed or failed and what kind of response (if any) 
you received from your API.

As someone who works in the API industry, I can tell you that API validation is important stuff. It's the process of making sure that an API meets expectations and requirements, and it's something you need to do if you want your API to be successful. Here's why:

1. It prevents problems down the line. By making sure that an API is properly validated before it's released, you can avoid a lot of headaches later on.

2. It helps ensure compatibility. If an API is compatible with other APIs and technologies, it'll be much easier to work with and integrate into existing systems.

3. It allows for better documentation. When an API is well-documented, it's much easier for developers to use and understand. This in turn makes it more likely to be used properly and adopted by others.

In short, API validation is essential to the success of any API. If you're not doing it, you're setting yourself up for problems down the road. So do yourself a favor and make sure your APIs are properly validated before you release them into the wild!