What are valid server response formats?

As of today, there are three major data formats being used to transmit data from a web server to a client: CSV, XML, and JSON. In order to develop an application with a solid architecture, it’s a good idea to understand the differences between each format and know when to use them.

REST Server Responses. However, other formats can also be used; unlike SOAP services, REST is not bound to XML in any way. Possible formats include CSV (comma-separated values) and JSON (JavaScript Object Notation). Each format has its own advantages and disadvantages.

Also, cAN REST API accept XML? And as organizations are publishing more APIs, the observed trend is that REST is replacing SOAP as the data transfer protocol of choice. When it comes to the data that APIs serve up, XML is still the most used format. Although JSON is hot on its heels, we still need to address plenty of use cases with XML payload.

Similarly, you may ask, what are the different rest response formats?

The currently-available response formats for all REST endpoints are string-based formats and include XML, JSON, PJSON, and HTML. PJSON refers to “Prettified” JSON. It formats JSON with spaces, tabs, and carriage returns in order to improve its human readability, especially during application development and testing.

What is the main advantage using JSON and XML over using CSV?

Pros – This data format supports hierarchical data while being smaller in size than XML. As its name implies, it was also created to more easily parse data into native Javascript objects, making it very useful for web applications. JSON is the best of both worlds with respect to CSV and XML.

Is JSON better than CSV?

Key Difference Between JSON vs CSV In JSON, each object can have different fields and the field order is not significant in JSON. In the CSV file, all the records should have the same fields and it should be in the same order. JSON is more verbose than CSV. CSV is more concise than JSON.

What is a REST response?

REST response structure. When you send a REST request, the appliance responds with a structured response in JSON format. The exact structure of the response depends on the resource and URI of the request, but all responses are similar. The response includes all available resources from any point within the API.

What is content type in REST API?

Content-Type. The “Content-Type” header field indicates the media type of the associated representation. So: Accept indicates what kind of response from the server the client can accept. Content-type always is about the content of the current request or response.

What is the difference between accept and content type?

Accept and Content-type are both headers sent from a client(browser say) to a service. Accept header is a way for a client to specify the media type of the response content it is expecting and Content-type is a way to specify the media type of request being sent from the client to the server.

What is application JSON?

JSON. 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. The official Internet media type for JSON is application/json . JSON filenames use the extension .json .

What is rest used for?

Representational state transfer (REST) is a software architectural style that defines a set of constraints to be used for creating Web services. Web services that conform to the REST architectural style, called RESTful Web services, provide interoperability between computer systems on the Internet.

What is content type in Ajax?

contentType is the type of data you’re sending, so application/json; charset=utf-8 is a common one, as is application/x-www-form-urlencoded; charset=UTF-8 , which is the default. dataType is what you’re expecting back from the server: json , html , text , etc.

What are API codes?

An application program interface (API) is a set of routines, protocols, and tools for building software applications. Basically, an API specifies how software components should interact. Additionally, APIs are used when programming graphical user interface (GUI) components.

What is content type JSON?

The right content type for JSON is application/json UNLESS you’re using JSONP, also known as JSON with Padding, which is actually JavaScript and so the right content type would be application/javascript .

What is API error?

Generally speaking, it means one of two things — something was so wrong in your request or your handling that the API simply couldn’t parse the passed data, or the API itself has so many problems that even the most well-formed request is going to fail.

Does rest support XML?

Unlike SOAP, REST doesn’t have to use XML to provide the response. You can find REST-based web services that output the data in Command Separated Value (CSV), JavaScript Object Notation (JSON) and Really Simple Syndication (RSS).


REST API has no has no official standard at all because it is an architectural style. REST APIs uses multiple standards like HTTP, JSON, URL, and XML while SOAP APIs is largely based on HTTP and XML.

Which data format does REST API uses XML?

The REST API supports the following data formats: application/json. application/json indicates JavaScript Object Notation (JSON) and is used for most of the resources. application/xml indicates eXtensible Markup Language (XML) and is used for selected resources.

How do you test an API?

API Testing Best Practices Test for the typical or expected results first. Add stress to the system through a series of API load tests. Test for failure. Group test cases by test category. Prioritize API function calls so that it will be easy for testers to test quickly and easily.