发布二进制数据RESTful应用程序 [英] Post binary data to a RESTful application

问题描述

我工作的一个RESTful Web应用程序（Django的+活塞）。 POST请求发送数据连接codeD使用JSON的Web应用程序。这工作正常，所有我的文字只有数据库表，但我也有存储文本和二进制文件的表。什么是张贴文本和二进制数据到一个RESTful应用程序的最佳方式？

I'm working on a RESTful web application (Django+Piston). The POST request sends data encoded with Json to the web application. This works fine for all my text only database tables but I also have a table which stores text and binary files. What is the best way to post text and binary data to a RESTful application?

推荐答案

您既可以Base64编码恩code，并把它作为一个JSON消息的字符串，也可以邮寄或把二进制作为一个单独的资源和在JSON消息指其通过ID或URL。后一种方法是一种从带外数据信道的那是相当常见的基于XML的协议（例如，使用XMPP语音聊天）。

You can either Base64-encode it and send it as a string in a JSON message, or you can POST or PUT the binary as a separate resource and refer to it by ID or URL in the JSON message. The latter approach is a kind of out-of-band data channel that is quite common in XML-based protocols (e.g., voice chat using XMPP).

您甚至可以很容易地支持混合模式，即：

You could even quite easily support a hybrid model, whereby:

1. 的小图像被作为 {BASE64：OGZmNjJmOWNhYzFlODE0NDBjYmYzNjhjYz ...} ;


2. 一个大的图像上传作为参考， {裁判：http://myserver.com/bits/E4304205-29B7-48EE-A359-74250E19EFC4} 。

1. A small image is sent as {"base64":"OGZmNjJmOWNhYzFlODE0NDBjYmYzNjhjYz..."};
2. A large image is uploaded as a reference, {"ref":"http://myserver.com/bits/E4304205-29B7-48EE-A359-74250E19EFC4"}.

要避免需要外部引用二进制双POST，你可以设计一些协议，允许JSON和二进制的东西，在一个单一的转移到混合。但增量收益是不可能充分奖励的努力，这一水平。

To avoid the double-POST needed for externally referenced binaries, you could design some protocol that allows JSON and binary stuff to be mixed in a single transfer. But the incremental gain is unlikely to adequately reward that level of effort.

最后，从设计的角度来看，坚持简单的解决方案，直到它成为一个问题。

Finally, from a design perspective, stick to the simple solution until it becomes a problem.

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