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RESTful Java Web Services, Second Edition

You're reading from   RESTful Java Web Services, Second Edition Design scalable and robust RESTful web services with JAX-RS and Jersey extension APIs

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Product type Paperback
Published in Sep 2015
Publisher
ISBN-13 9781784399092
Length 354 pages
Edition 1st Edition
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Author (1):
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Jobinesh Purushothaman Jobinesh Purushothaman
Author Profile Icon Jobinesh Purushothaman
Jobinesh Purushothaman
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Table of Contents (11) Chapters Close

Preface 1. Introducing the REST Architectural Style FREE CHAPTER 2. Java APIs for JSON Processing 3. Introducing the JAX-RS API 4. Advanced Features in the JAX-RS API 5. Introducing the Jersey Framework Extensions 6. Securing RESTful Web Services 7. The Description and Discovery of RESTful Web Services 8. RESTful API Design Guidelines A. Useful Features and Techniques Index

Asynchronous execution of RESTful web APIs


If your RESTful web API takes a considerable amount of time for finishing the job and the users cannot wait for the API to finish, you may want to consider using the asynchronous mode of execution.

The asynchronous RESTful web API works as explained here. The client calls the asynchronous RESTful API as any other API:

POST /employees HTTP/1.1 
[{"departmentId": 10, "departmentName": "IT"}, 
{"departmentId": 20, "departmentName": "HR"},...] 

The asynchronous API that is responsible for handling the preceding request accepts the request and returns the 202 Accepted status to the caller without keeping the caller waiting for the request to finish. The response also can have a temporary resource inside the Location header, which can be used by the client to query the status of the process. Here is an example of the response generated by the server:

HTTP/1.1 202 Accepted 
Location: /queue/job1234

The JAX-RS 2.0 specification allows you to build asynchronous...

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