Quick Answer: How Do I Return A JSON Response From REST API?

How do I return a JSON response to a restful web service?

JSON Response in Web Service To change a web service that is already written to provide a XML response or to create a new one, we need to add just two things.

Use @Produces annotation and add the MIME type application/json .

Add dependent JAR files to produce JSON response..

How do I return a JSON response in spring boot?

If you want to return a json serialized string then just return the string. Spring will use StringHttpMessageConverter instead of JSON converter in this case. This approach allows you to add child objects, arrays, and use all various types.

How do you return a JSON response in Java?

Write the JSON object to the response object’s output stream. First convert the JSON object to String . Then just write it out to the response writer along with content type of application/json and character encoding of UTF-8.

How do I change API response to JSON?

How to Parse JSON Data From a REST API Using a Simple JSON LibraryStep 1) Pass the desired URL as an object:Step 2) Type cast the URL object into a HttpURLConnection object. … Step 5) Get the corresponding response code.More items…•

Can Webserves return JSON?

JSON as we know is Javascript Object Notation and is very lightweight and has gained a good momentum to use in such scenarios. Developers now prefer JSON over XML response in a Web Service. Let us create a web Service and see how to return a JSON response from the same. Open Visual Studio.

How does REST API send JSON data?

2. Building a JSON POST Request with HttpURLConnection2.1. Create a URL Object. … 2.2. Open a Connection. … 2.3. Set the Request Method. … 2.4. Set the Request Content-Type Header Parameter. … 2.5. Set Response Format Type. … 2.6. Ensure the Connection Will Be Used to Send Content. … 2.7. Create the Request Body. … 2.8.