Azure 函数参数中的 DocumentClient 绑定

Question

我正在 F# 中编写一个 http 触发器 Azure 函数，我想绑定一个 DocumentClient 类型的参数，以便更好地控制在 Cosmos DB 中完成的查询。这是我目前所拥有的：

Function.fs

namespace Functions

open System
open System.Net
open System.Net.Http
open Newtonsoft.Json
open Microsoft.Azure.Documents
open Microsoft.Azure.Documents.Client
open Microsoft.Azure.WebJobs
open Microsoft.Azure.WebJobs.Host
open Microsoft.Azure.WebJobs.Extensions
open Microsoft.Azure.WebJobs.Extensions.DocumentDB

module Function = 
  let Run(req: HttpRequestMessage, [<DocumentDB>] client: DocumentClient, log: TraceWriter) =
    log.Info(sprintf "F# HTTP trigger function processed a request.")
    req.CreateResponse(HttpStatusCode.OK)

function.json

{
  "disabled": false,
  "scriptFile": "..\..\..\build\Debug\Functions\Functions.dll",
  "entryPoint": "Functions.Function.Run",
  "bindings": [
    {
      "direction": "in",
      "type": "httpTrigger",
      "authLevel": "anonymous",
      "name": "req",
      "methods": [ "get" ],
      "route": "users"
    },
    {
      "direction": "in",
      "type": "documentDB",
      "name": "client",
      "connection": "COSMOSDB_CONNECTION_STRING"
    },
    {
      "direction": "out",
      "type": "http",
      "name": "res"
    }
  ]
}

host.json

{
  "frameworks": {
    "net46":{
      "dependencies": {
        "Dynamitey": "1.0.2",
        "FSharp.Interop.Dynamic": "3.0.0",
        "Microsoft.Azure.DocumentDB": "1.17.0",
        "Microsoft.Azure.WebJobs.Extensions.DocumentDB": "1.0.0"
      }
    }
  }
}

local.settings.json

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsDashboard": "",
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "COSMOSDB_CONNECTION_STRING": "AccountEndpoint=https://localhost:8081;AccountKey=C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==;"
  }
}

我正在使用开发存储和 Cosmos DB 模拟器在本地运行函数。我试图将其描述的内容翻译成 F# here for C#. And it is also pretty much the same as what is mentioned here。但我只收到错误 Microsoft.Azure.WebJobs.Extensions.DocumentDB: 'Id' is required when binding to a DocumentClient property.

Answer 1

this issue on Github. It's fixed in the tooling 中提到了一个解决方法，将在下一个版本

中提供

从 github

复制的解决方法

I found the issue and filed https://github.com/Azure/azure-functions-cli/issues/206. The easiest workaround until we have an update:

Go to C:\Users\{user}\appdata\local\Azure.Functions.Cli.0.0.

Open func.exe.config in notepad.

Find this:
<dependentAssembly>
  <assemblyIdentity name="Microsoft.Azure.Documents.Client" publicKeyToken="31bf3856ad364e35" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-1.11.0.0" newVersion="1.11.0.0" />
</dependentAssembly>
In both places, replace 1.11.0.0 with 1.13.0.0 so you end up with:
<dependentAssembly>
    <assemblyIdentity name="Microsoft.Azure.Documents.Client" publicKeyToken="31bf3856ad364e35" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-1.13.0.0" newVersion="1.13.0.0" />
  </dependentAssembly>
Save and retry.

Azure 函数参数中的 DocumentClient 绑定

DocumentClient binding in parameter of Azure function

f#

azure

azure-webjobssdk

azure-functions

azure-cosmosdb