node.js - 七牛 callbackUrl callbackBody 不生效

Question

var qiniu = require('qiniu');

qiniu.conf.ACCESS_KEY = 'xxx';
qiniu.conf.ACCESS_KEY = 'xxx';

var bucket = 'test';
var putPolicy  = new qiniu.rs.PutPolicy(bucket);

putPolicy.callbackUrl = 'wokanhao.com:4000';
putPolicy.callbackBody = "name=$(key)";

var token = putPolicy.token();

图片可以上传成功，但是不会回调业务服务器(xxx.com)。
请问我的上传策略中哪里写错了吗？

-----------------------------------继续提问-----------------------------------

修改成如上格式后，qiniu 还是返回 579 错误
请问又是哪里写错了？

-----------------------------------继续提问-----------------------------------

以下两点需要在回调服务器中设置？

3、response header中Content-Type不是'application/json'
4、response body 不是一个合法的json字符串

-----------------------------------继续提问-----------------------------------

putPolicy.callbackUrl = 'http://wokanhao.com:4000/qiniu-callback';
感谢您的提醒，我这里就是先做个测试

您可以访问 http://wokanhao.com:4000/ 随便提交下，
说明这个链接是可以接受POST请求的，并且返回的是JSON格式的数据.

加上上面 putPolicy 的配置

var bucket = 'test';
var putPolicy  = new qiniu.rs.PutPolicy(bucket);
putPolicy.callbackUrl = 'wokanhao.com:4000';
putPolicy.callbackBody = "name=$(key)";

目前还是会出现 图片上传可以成功， 但是出现 579 错误， 并且没有完成回调。

业务服务器返回的JSON需要特定的字段？ 还是其他原因？

Answer 1

The format of callbackBody is different from returnBody. It is a
"name=$(fname)&hash=$(etag)&location=$(x:location)&price=$(x:price)&uid=123"
String in the form, reference:
http://developer.qiniu.com/docs/v6/api/overview/up/response/callback.html

In addition, looking at your code, putPolicy is assigned a string. Next, a new instance of rs.PutPolicy is created. What is the usage? . .

If this is nodejs sdk, the normal approach is:

var putPolicy = new qiniu.rs.PutPolicy(bucket);
putPolicy.callbackUrl = 'some callbackUrl';
putPolicy.callbackBody = 'some callbackBody';
...

var uptoken = putPolicy.token();

Reference: http://developer.qiniu.com/docs/v6/sdk/nodejs-sdk.html#upload-token

The reason for the 579 error: Unable to request the callback interface normally, the usual reason:
1. The interface is not accessible from the public network
2. The interface does not accept Post method
3、response header中Content-Type不是'application/json'
4. The response body is not a legal json string
5、好吧，再加一个，callbackUrl 不写'http://'

For how to set the response header, please refer to:
https://www.google.com.hk/search?q=express response header&oq=express resp&aqs=chrome.3.69i57j0l3.5779j0j1&client=ubuntu-browser&sourceid=chrome&ie=UTF-8

You also mentioned 您可以访问 http://wokanhao.com:4000/ 随便提交下，, but why doesn’t the callbackUrl include http://?

Answer 2

putPolicy.callbackUrl = 'wokanhao.com:4000';

This needs to be a url, not a host, it should be changed to:

putPolicy.callbackUrl = 'http://wokanhao.com:4000/qiniu-callback';

• Note: This address is only indicative, you should set it according to your actual situation