Go语言的REST API框架：JAS
JAS (JSON API Server) 是一个简单，但强大的Go语言的REST API框架。
主要特性：
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不需要手动定义任何URL路由规则，规则按你的资源的结构名和名称定义。 No more inconsistencies between your url path and your method name.
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Generate all the handled url paths seperated by "\n", so it can be used for reference or detect api changes.
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Unobtrusive, JAS router is just a http.Handler, you can make it work with other http.Handlers as well as have multiple JAS routers on the same server.
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Support HTTP Streaming, you can keep an connection open and send real-time data to the client, and get notified when the connection is closed on the client side.
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Support extract parameters from json request body in any level of depth, so it can be used like JSON RPC.
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Get and validate request parameter at the same time, support validate a integer, a string's min and max length or rune length, and match a regular expression.
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Generate default response with the parameter name when validation failed, optionally log the error in Common Log Format.
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Wrap all unhandled error into InternalError type, write response to the client with default message, and log the stacktraces and request infomation in Common Log Format. and provide a optional function parameter to do the extra error handlling work.
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Provide an interface to handle errors, so you can define your own error type if the two default implementation can not meet your requirement.
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支持gzip压缩
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高度可配置