What is json web service

One final observation geared toward iOS since that is the particular platform for which I develop focuses on how we process the two formats on the device once information has been returned from the web service. This can require a significant amount of coding. These objects can be archived and we can access data elements as key-value pairs without having to implement any delegate methods or iterate through the result data.

This equates to a measurable increase in speed and efficiency. For my money, JSON is absolutely the way to go for mobile device data consumption.

Skip to content. Written by Geoff Bender on March 29, Part II. Learn more. Applies to Collaborator Is this page helpful? Thank you! Highlight search results. Highlight search results Highlight search results. Web services can be created in a variety of languages. Many integrated development environments can be used to create REST-based services.

Net using Visual Studio. Step 1 The first step is to create an empty Asp. Net Web application. Once you click on the New Project option, Visual Studio will then give you another dialog box for choosing the type of project and to give the necessary details of the project.

Step 3 The next step is to create the web service file which is going to have the RESTful web service. Step 4 The next step is to actually make a configuration change to enable this project to complete work with RESTful web services. This requires to make a change to the file called Web. This file appears in the same window as the Webservice project file.

The file Web. The change being made actually allows the application to send and receive data as a pure RESTful web service. All of the below-mentioned code has to be written in the TutorialService. Step 6 Next we will define the code for our GET method. This code will also reside in the same TutorialService.

This code will run whenever we call the service from our browser. This method will be invoked whenever we want to add a string value to our list of Tutorials via the POST method. Now that we have created our entire web service in the above section. This will ensure that this project is run when Visual Studio runs the entire solution. Step 3 The next step is to run the project itself. Now depending on the default browser installed on the system, the appropriate browser name will come next to the run button in Visual Studio.

In our case, we have Google Chrome showing up. Just click on this button. When the project is run, you can browse to your TutorialService. If you hit the enter button, you will get the below output. For example, session maintained by server is identified by session identifier passed by the client. We have seen this in the RESTful Web Services - Methods chapter, that the web service methods are not storing any information from the client they are invoked from.

If you hit the above url using your browser or using a java based client or using Postman, result will always be the User XML whose Id is 1 because the server does not store any information about the client.

Web services need not maintain the client's previous interactions. It simplifies the application design. Web services need to get extra information in each request and then interpret to get the client's state in case the client interactions are to be taken care of. Caching refers to storing the server response in the client itself, so that a client need not make a server request for the same resource again and again.

A server response should have information about how caching is to be done, so that a client caches the response for a time-period or never caches the server response. Indicates that resource is cacheable only by the client and the server, no intermediary can cache the resource. Indicates the caching is valid up to max-age in seconds. After this, client has to make another request. Always keep static contents like images, CSS, JavaScript cacheable, with expiration date of 2 to 3 days.

The GET method should not be able to delete data. Returns link to the newly created resource using the location header. Response body should be empty. Headers should have date, location, etc. For example, validation error, missing data. For example, Delete access without admin rights. For example, adding duplicate entry. Its 2. Previous Page. Next Page.