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44 lines
1.7 KiB
Markdown
44 lines
1.7 KiB
Markdown
# Browser enhancements
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> "There are two noncontroversial uses for overloaded POST. The first is to *simulate* HTTP's uniform interface for clients like web browsers that don't support PUT or DELETE"
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>
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> — [RESTful Web Services](1), Leonard Richardson & Sam Ruby.
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## Browser based PUT, DELETE, etc...
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**TODO: Preamble.** Note that this is the same strategy as is used in [Ruby on Rails](2).
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For example, given the following form:
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<form action="/news-items/5" method="POST">
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<input type="hidden" name="_method" value="DELETE">
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</form>
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`request.method` would return `"DELETE"`.
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## Browser based submission of non-form content
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Browser-based submission of content types other than form are supported by using form fields named `_content` and `_content_type`:
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For example, given the following form:
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<form action="/news-items/5" method="PUT">
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<input type="hidden" name="_content_type" value="application/json">
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<input name="_content" value="{'count': 1}">
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</form>
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`request.content_type` would return `"application/json"`, and `request.stream` would return `"{'count': 1}"`
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## URL based accept headers
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## URL based format suffixes
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## Doesn't HTML5 support PUT and DELETE forms?
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Nope. It was at one point intended to support `PUT` and `DELETE` forms, but was later [dropped from the spec](3). There remains [ongoing discussion](4) about adding support for `PUT` and `DELETE`, as well as how to support content types other than form-encoded data.
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[1]: http://www.amazon.com/Restful-Web-Services-Leonard-Richardson/dp/0596529260
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[2]: http://guides.rubyonrails.org/form_helpers.html#how-do-forms-with-put-or-delete-methods-work
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[3]: http://www.w3.org/TR/html5-diff/#changes-2010-06-24
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[4]: http://amundsen.com/examples/put-delete-forms/
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