By Lorna Jane Mitchell

ISBN-10: 1491933097

ISBN-13: 9781491933091

No matter if you're sharing information among inner platforms or construction an API in order that clients can entry their facts, this useful advisor has every little thing you must construct APIs with personal home page. writer Lorna Jane Mitchell offers plenty of hands-on code samples, real-world examples, and recommendation in line with her broad adventure to lead you thru the process—from the underlying concept to equipment for making your provider robust.

You'll how to use this language to paintings with JSON, XML, and different internet carrier applied sciences. This up-to-date moment variation contains new instruments and lines that replicate Hypertext Preprocessor updates and adjustments on the internet.

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Extra resources for PHP Web Services (2nd Edition)

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When returning a resource, either an ETag (usually a hash of the representation itself) or a Last-Modified (the date this record last changed) is included with the response. info | 37 at a later point, they can tell us which version of a resource they already have. This is very similar to the way that web browsers cache assets such as stylesheets and images. When a resource is served with an ETag header, this header will contain some textual representation of the resource, perhaps a hash of the resource or a combination of file size and timestamp.

This is nicer than passing actual user creden‐ tials, as the details used can be changed. Sometimes API keys will be passed simply as a query parameter, but the Authorization header would also be an appropriate place for such information. info HTTP Basic Authentication The simplest approach to authorization is HTTP Basic authentication (for more details, see the RFC), which requires the user to supply a username and password to identify himself. Since this approach is so widespread, it is well supported in most platforms, both client and server.

Caching can either be done by the server, which makes a decision about whether to serve a previous version of a resource, or by clients storing the result of previous requests and allowing us to compare versions. Giving version information along with a resource is a key ingredient in client-side caching, and also links with the nonatomic update procedures in REST as we men‐ tion in “Update a Resource with PUT” on page 87. When returning a resource, either an ETag (usually a hash of the representation itself) or a Last-Modified (the date this record last changed) is included with the response.

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PHP Web Services (2nd Edition) by Lorna Jane Mitchell


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