使用带有触发器http的Azure功能，使用基于http请求的ID输入DocumentDB

Question

所以我从this page读到的是，我应该能够：

1. 触发HTTP
2. 输入Http请求
3. 输入DocumentDb
4. 输出DocumentDb

数字1,2和4正在运作。但是如何使用路径中的ID从DocumentDB获取文档？

我可以在DocumentDb输入中使用代理路由中的{path}吗？

我有一个像这样定义的代理。

{
    "$schema": "http://json.schemastore.org/proxies",
    "proxies": {
        "index": {
            "matchCondition": {
                "route": "{*path}",
                "methods": [
                    "GET"
                ]
            },
            "backendUri": "https://%WEBSITE_SITE_NAME%.azurewebsites.net/api/Index"
        },
        "api": {
            "matchCondition": {
                "route": "api/{*path}"
            },
            "backendUri": "https://%WEBSITE_SITE_NAME%.azurewebsites.net/api/{path}"
        },
        "index existing subscription": {
            "matchCondition": {
                "route": "/subscription/{*path}",
                "methods": [
                    "GET"
                ]
            },
            "backendUri": "https://%WEBSITE_SITE_NAME%.azurewebsites.net/api/IndexSubscription/{path}"
        }
    }
}

Answer 1

以下是带有文档数据库输入绑定的函数示例。

function.json

{
  "bindings": [
    {
      "authLevel": "function",
      "name": "req",
      "type": "httpTrigger",
      "direction": "in",
      "route": "MyDocFunc/{docid}"
    },
    {
      "type": "documentDB",
      "name": "inputDocument",
      "databaseName": "MyDocDB",
      "collectionName": "MyCollection",
      "id": "{docid}",
      "connection": "mydocdb_DOCUMENTDB",
      "direction": "in"
    },
    {
      "name": "$return",
      "type": "http",
      "direction": "out"
    }
  ],
  "disabled": false
}

csx

public static async Task<HttpResponseMessage> Run(
    HttpRequestMessage req, string docid, string inputDocument)
{
    return req.CreateResponse(HttpStatusCode.OK, inputDocument);
}

代理的使用不会对此产生太大影响......您可以将代理参数传递给函数参数。