How to Get Data From RESTful Webservice in Android Using JSON and OKHTTP

How to Get Data From RESTful Webservice in Android Using JSON and OKHTTP

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This tutorial describes how to receiving JSON data from REST service in android.

We used OKHTTP instead of built in Http client as it has a lot of benefits and lots of functionality over the built in Http client. This is an open source library from the giant company “Sqaure”.
OKHTTP is an open source project designed to be an efficient HTTP client. It supports the SPDY protocol. SPDY is the basis for HTTP 2.0 and allows multiple HTTP requests to be multiplexed over one socket connection.

There are alternative libraries to OKHTTP, such as Volley. Volley is an open source library form Google and officially supported. As they mentioned on their website Volley offers the following benefits:

• Automatic scheduling of network requests.
• Multiple concurrent network connections.
• Transparent disk and memory response caching with standard HTTP cache coherence.
• Support for request prioritization.
• Cancellation request API. You can cancel a single request, or you can set blocks or scopes of requests to cancel.
• Ease of customization, for example, for retry and backoff.
• Strong ordering that makes it easy to correctly populate your UI with data fetched asynchronously from the network.
• Debugging and tracing tools.

OKHTTP Website: “http://square.github.io/okhttp/”
Volley Website: “https://developer.android.com/training/volley/index.html”

The code sample can be downloaded from following link:
http://ift.tt/2oszp0L

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