How do I return a JSON object in Web API?

How do I return a JSON object in Web API?

Let’s explore them:

1. Change the default formatter for Accept: text/html to return JSON.
2. Change the default formatter for Accept: text/html to return JSON, and also return a valid Content-Type: application/json header.
3. Completely remove the XML formatter, forcing ASP.NET Web API to return JSON by default.

Does Web API return JSON by default?

By default Web API returns result in XML format. If client need data in JSON format then type=json and same way if it is XML then type=xml, Here is the complete code you need to add in WebApiConfig.

How do I return a JSON from a Web service?

Click on GetStudents and we get the JSON response from the service….Add the following code in the code behind file of the service.

1. using System.Web.Script.Serialization;
2. using System.Web.Script.Services;
3. using System.Web.Services;
4. namespace WebServiceXMLtoJSON.
5. {
6. public class Students.
7. {
8. public int StudentId.

How do I return JSON from Web API to core?

To return data in a specific format from a controller that inherits from the Controller base class, use the built-in helper method Json to return JSON and Content for plain text. Your action method should return either the specific result type (for instance, JsonResult ) or IActionResult .

How do I return a JSON file?

3 Answers

1. Read the file as a string.
2. Parse it as a JSON object into a CLR object.
3. Return it to Web API so that it can be formatted as JSON (or XML, or whatever)

How do I return a JSON response from REST API?

java as follows. Modify the DisplayEmployeeController. java. Add the headers=”Accept=application/json”, to tell the MVC to return Employee info in JSON format.

How do I return a web API result?

Depending on which of these is returned, Web API uses a different mechanism to create the HTTP response. Convert directly to an HTTP response message. Call ExecuteAsync to create an HttpResponseMessage, then convert to an HTTP response message. Write the serialized return value into the response body; return 200 (OK).

How do I return JSON data from Handler?

asp.net generic handler return json

1. Step 1 : Create new asp.net web application project.
2. Step 2 : Include a connection string in the web.
3. Step 3 : Add a class file to the project.
4. Step 4 : Add a new Generic Handler.

What is JSON in asp net with example?

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language, Standard ECMA-262 3rd Edition – December 1999.

Can we return view from WebAPI?

You don’t. You can return one or the other, not both. Frankly, a WebAPI controller returns nothing but data, never a view page. A MVC controller returns view pages.

How extract JSON data from API?

How to Parse JSON Data From a REST API Using a Simple JSON Library

1. Step 1) Pass the desired URL as an object:
2. Step 2) Type cast the URL object into a HttpURLConnection object.
3. Step 5) Get the corresponding response code.

Should REST API return JSON?

REST APIs should accept JSON for request payload and also send responses to JSON. JSON is the standard for transferring data. But for text and numbers, we don’t need form data to transfer those since—with most frameworks—we can transfer JSON by just getting the data from it directly on the client side.

Can web API return objects?

The simplest web api controller can directly return the object in question. Say you have a ProductController that is concerned with CRUD operations on Products, it might have a method like the below: We have returned the Product type directly making this the simplest solution and in addition it is trivial to unit test the returned values.

What is an example of a web API?

The API itself is abstract, in that it specifies an interface and does not get involved with implementation details. A good example of an API would be a web service interface, such as the API provided by Google for its mapping service.

What is a JSON endpoint?

An “exposed JSON endpoint” is a publicly available URL (sometimes with query or path parameters added by you) which you can send an HTTP request to and it will return JSON from the remote server that is related to the request you sent.