Does API return JSON?

How do I return JSON in 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 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. Almost every networked technology can use it: JavaScript has built-in methods to encode and decode JSON either through the Fetch API or another HTTP client.

Does Web API return JSON by default?

By default, Web API produces XML but if there is need for JSON, given syntax will do it.

Why do APIs return JSON?

Basically a REST-API using JSON is useful when your PHP application wants to communicate (synchronously) with a different application. JSON is the defacto standard, because it is concise, human-readable and easily processable in many languages.

Can ActionResult return JSON?

Json inherits ActionResult so it is still a valid return type. Same thing for redirect actions, view actions and so on. You can update your method to explicitly return a fixed result, or leave it as ActionResult and the method can adapt to send different response types depending on its logic.

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What is JSON format?

JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa).

Is API a JSON file?

JSON is a language-independent data format. It was derived from JavaScript, but many modern programming languages include code to generate and parse JSON-format data.


Filename extension .json
Internet media type application/json
Type code TEXT
Uniform Type Identifier (UTI) public.json
Type of format Data interchange

Is REST API always JSON?

For some, REST means a server that exchanges JSON documents with a client over HTTP. Not only is that not a complete definition, but it’s also not always true. The REST specification doesn’t require HTTP or JSON. (The spec doesn’t mention JSON or XML at all.)


While SOAP and REST are two leading approaches to transferring data over a network using API calls, JSON is a compact data format that RESTful web services can use.

SOAP vs. REST comparison table.

Message format Only XML. Plain text, HTML, XML, JSON, YAML, and others.

What is return OK in Web API?

In this article

Return type How Web API creates the response
HttpResponseMessage Convert directly to an HTTP response message.
IHttpActionResult Call ExecuteAsync to create an HttpResponseMessage, then convert to an HTTP response message.
Other type Write the serialized return value into the response body; return 200 (OK).
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Is it possible to return view from Web API?

Solution 1

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.

Which is the most secure method to transmit an API key?

HMAC Authentication is common for securing public APIs whereas Digital Signature is suitable for server-to-server two way communication. OAuth on the other hand is useful when you need to restrict parts of your API to authenticated users only.