How to test rest api in java

How do you test REST API?

For each API request, the test would need to take the following actions:

  1. Verify correct HTTP status code. …
  2. Verify response payload. …
  3. Verify response headers. …
  4. Verify correct application state. …
  5. Verify basic performance sanity.

How do you write a test case for REST API in Java?

  1. Step 1 – Create an API Testing Project. Install IntelliJ IDEA. …
  2. Step 2 – Add Dependencies. Now that we have a project, we need to setup the dependencies. …
  3. Step 3 – Write Your Unit Test via JUnit. …
  4. Step 4 – Setting up the Unit Tests for the APIs. …
  5. Step 5 – Running the Unit Tests on Your APIs.

How do I know if API is working?

Best Practices of API Testing:

  1. Test cases should be grouped by test category.
  2. On top of each test, you should include the declarations of the APIs being called.
  3. Parameters selection should be explicitly mentioned in the test case itself.
  4. Prioritize API function calls so that it will be easy for testers to test.

How do I test a RESTful web service?

Create REST Request

  1. Click on the Request toolbar and you will see the XML output returned by the service:
  2. The request seems fine, so let’s create an actual functional test for this resource. Click . …
  3. SoapUI creates a test case with a corresponding REST Request test step:

What is REST API example?

An application implementing a RESTful API will define one or more URL endpoints with a domain, port, path, and/or querystring — for example, https://mydomain/user/123?format=json . Examples: … a PUT request to /user/123 updates user 123 with the body data. a GET request to /user/123 returns the details of user 123.

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How does REST API work?


  1. An API is an application programming interface. …
  2. REST determines how the API looks like. …
  3. Each URL is called a request while the data sent back to you is called a response.
  4. The endpoint (or route) is the url you request for. …
  5. The root-endpoint is the starting point of the API you’re requesting from.

What is swagger API?

Swagger is in essence an Interface Description Language for describing RESTful APIs expressed using JSON. Swagger is used together with a set of open-source software tools to design, build, document, and use RESTful web services.

What is Restassured given ()?

REST Assured is a Java Domain Specific Language API for simplifying testing of RESTful web services. REST Assured API can be used to invoke REST web services and match response content to test them.

How do you write a manual test case for REST API?

Test cases for API Testing

  1. Validate the keys with the Min. …
  2. Keys verification. …
  3. Have a test case to do XML, JSON Schema validation.
  4. Verify the Parse the Response data.
  5. Verify the JSON Schema validation, Verify the Field Type,Verify the Mandatory Fields.
  6. Valid Response headers & Negative Testcases response.

24 мая 2020 г.

What are the common API testing types?

11. What are the common API testing types?

  • Validation Testing.
  • Functional Testing.
  • UI testing.
  • Load testing.
  • Runtime/ Error Detection.
  • Security testing.
  • Penetration testing.
  • Fuzz testing.

How do I start API testing?

API testing flow is quite simple with three main steps:

  1. Send the request with necessary input data.
  2. Get the response having output data.
  3. Verify that the response returned as expected in the requirement.
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Which tool is best for API testing?

The following article discusses the top API testing tools, which range from open-source and commercial solutions depending on the specific needs of testing teams.

  1. SoapUI. SoapUI is a functional testing tool that addresses API testing. …
  2. Katalon Studio. …
  3. Postman. …
  4. Apigee. …
  5. Tricentis Tosca. …
  6. API Fortress. …
  7. Assertible. …
  8. JMeter.

14 мая 2019 г.

Is a REST API a Web service?

The short answer? Yes, REST APIs are a type of Web Service APIs. A REST API is a standardized architecture style for creating a Web Service API. One of the requirements to be a REST API is the utilization of HTTP methods to make a request over a network.

What is REST API interview questions?

15 Rest API Interview Question & Answers

  • Explain what is REST and RESTFUL? …
  • Explain the architectural style for creating web API? …
  • Mention what tools are required to test your web API? …
  • Mention what are the HTTP methods supported by REST? …
  • Mention whether you can use GET request instead of PUT to create a resource?

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