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我正在为 Azure Functions 编写一个 NodeJS 函数。但是,当尝试调用以向调用context.res者返回响应时,该函数会失败,并出现以下异常:

2016-06-26T07:45:59.171 Exception while executing function: Functions.getSASToken. mscorlib: TypeError: context.res is not a function
    at module.exports (D:\home\site\wwwroot\getSASToken\index.js:63:26)
    at eval (eval at <anonymous> (C:\Program Files (x86)\SiteExtensions\Functions\0.2.10238\bin\edge\double_edge.js:34:28), <anonymous>:42:7).

文件内容function.json

{
  "bindings": [
    {
      "webHookType": "",
      "name": "req",
      "type": "httpTrigger",
      "direction": "in",
      "authLevel": "anonymous"
    },
    {
      "name": "res",
      "type": "http",
      "direction": "out"
    }
  ],
  "disabled": false
}

以及有问题的功能:

module.exports = function(context, req) { 
    var token = req.query.token;
    var deviceId = req.query.deviceId;

    var resourceUri = util.format('%s/devices/%s', sbNamespace, deviceId);

    var sasToken = generateSasToken(resourceUri, token, null, 14400);

    context.res({
        status: 200,
        body: sasToken
    });

    context.done();
}

遍历context.bindings对象表明它只包含属性reqres完全缺失)。

仅供参考,通过覆盖响应对象context.done(null, {res: {status:200, body: sasToken}}确实将所需的输出返回给调用者。

4

1 回答 1

1

代替

context.res({
    status: 200,
    body: sasToken
});

你需要

context.res = {
    status: 200,
    body: sasToken
};
于 2016-06-26T13:37:08.123 回答