javascript - Azure Functions [Node.js] : context. BindingData 不包含我的路由参数(如文档所示)

Question

我目前正在构建一个应该检索 2 个路由参数的函数(第一个是必需的，第二个是可选的)，但尽管遵循了他们的文档，我还是遇到了一些问题。

具体来说，我正在关注this一些说明，但不幸的是它不会按预期工作。

在我的 function.json 中，我有以下代码:

{
  "bindings": [
    {
      "authLevel": "anonymous",
      "type": "httpTrigger",
      "name": "req",
      "direction": "in",
      "methods": [ "get" ],
      "route": "MyFunction/{courseId:alpha}/{locale:alpha?}"
    },
    {
      "type": "http",
      "direction": "out",
      "name": "res"
    }
  ]
}

说明告诉我可以在 context.bindingData 上访问这两个参数，但它没有出现。我(此时)访问信息的唯一方法是分割路径(存在于 context.bindingData.path 上)。 不过，我真的不喜欢这个解决方案，尤其是当文档告诉我们另一种方法时。

这里是context.bindingData里面的内容:

{
    "invocationId": "1067e7e5-f85f-481c-8605-645cf78dcb25",
    "path": "MyFunction/windscreen/en",
    "query": {
        
    },
    "headers": {
        "cache-Control": "max-age=0",
        "connection": "keep-alive",
        "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
        "accept-Encoding": "gzip,deflate,br",
        "accept-Language": "da-DK,da;q=0.9,en-US;q=0.8,en;q=0.7,la;q=0.6,nb;q=0.5",
        "host": "localhost",
        "user-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36",
        "upgrade-Insecure-Requests": "1",
        "content-Length": "0",
        "sec-ch-ua": "\"Chromium\";v=\"92\", \" Not A;Brand\";v=\"99\", \"Google Chrome\";v=\"92\"",
        "sec-ch-ua-mobile": "?0",
        "sec-Fetch-Site": "none",
        "sec-Fetch-Mode": "navigate",
        "sec-Fetch-User": "?1",
        "sec-Fetch-Dest": "document",
        "x-Forwarded-For": "127.0.0.1"
    },
    "sys": {
        "methodName": "MyFunction",
        "utcNow": "2021-08-05T13:56:43.800Z",
        "randGuid": "[Censored]"
    }
}

提前致谢!

Answer 1

请从 here 升级到最新的 Azure Functions 核心工具看看您是否仍然看到这种行为。

我使用了3.0.3477版本，无法重现它。作为引用，所使用的出价信息与您所拥有的类似，如下所示:

 {
  "bindings": [
    {
      "authLevel": "anonymous",
      "type": "httpTrigger",
      "direction": "in",
      "name": "req",
      "methods": [ "get" ],
      "route": "MyFunc/{firstParam:alpha}/{optionalParam:alpha?}"
    },
    {
      "type": "http",
      "direction": "out",
      "name": "res"
    }
  ]
}

使用的网址:/api/MyFunc/FirstValue/OptionalValue

上下文.绑定(bind)数据:screenshot of context.bindingData