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在Azure函数中引用cosmos db nuget包

azure-cosmosdb azure-functions azure c#

Souvik Ghosh · 技术社区 · 7 年前

我正在尝试在我的Azure函数应用程序中使用Cosmos DB文档客户端。我遵循了这里提到的步骤- How can I use NuGet packages in my Azure Functions?

我对project.json有依赖性-

{
  "frameworks": {
    "net46":{
      "dependencies": {
        "Microsoft.Azure.DocumentDB.Core": "2.1.3"
      }
    }
   }
}

project.json被放置在函数app中,app服务编辑器路径如下-

https://<functionappname>.scm.azurewebsites.net/dev/wwwroot/<functionname>/project.json

这是我的功能代码-

#r "Newtonsoft.Json"
#r "Microsoft.Azure.Documents.Client"

using System.Net;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Primitives;
using Newtonsoft.Json;

using System.Net.Http;
using System.Threading.Tasks;
using System.Net.Http.Formatting;
using System.Threading;
using Microsoft.Azure.Documents;
using Microsoft.Azure.Documents.Client;


public static async Task<IActionResult> Run(HttpRequest req, ILogger log)
{
    string endPoint = <ep>;
    string databaseId = <dbID>;
    string collectionId = <cid>;
    string documentId = <did>;
    string resourceLink = string.Format("dbs/{0}/colls/{1}/docs/{2}", databaseId, collectionId, documentId);
    string primaryKey = <pk>;
    IDocumentClient documentClient = new DocumentClient(new Uri(endPoint), primaryKey);

    var response = documentClient.ReadDocumentAsync(resourceLink).Result;
    return new OkObjectResult(response);
}

当我保存并运行应用程序时,不会收到任何错误或响应。如果我删除cosmossdb参考代码,它就会工作。下面是代码-

#r "Newtonsoft.Json"

using System.Net;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Primitives;
using Newtonsoft.Json;

using System.Net.Http;
using System.Threading.Tasks;
using System.Net.Http.Formatting;
using System.Threading;


public static async Task<IActionResult> Run(HttpRequest req, ILogger log)
{
    return new OkObjectResult("response");
}

我是错过了什么,还是做得不正确?如果我在控制台应用程序上使用它,同样的代码也可以工作。有什么帮助吗?

2 回复 | 直到 7 年前

Jerry Liu Phantom 7 年前

函数2.0使用 function.proj 如下所示。

<Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <TargetFramework>netstandard2.0</TargetFramework>
    </PropertyGroup>
    <ItemGroup>
        <PackageReference Include="Microsoft.Azure.DocumentDB.Core" Version="2.1.3"/>
    </ItemGroup>
</Project>

并去掉多余的 #r "Microsoft.Azure.Documents.Client" 因为程序集已添加。

Matias Quaranta 7 年前

若要在门户中工作,请使用 Cosmos DB Trigger ,这将把cosmos-db扩展拉入函数app,然后您可以删除创建的函数并创建一个新的函数并拉 DocumentClient :

一旦添加了扩展名,就可以拉客户端添加 #r "Microsoft.Azure.DocumentDB.Core" 在函数代码的顶部:

#r "Newtonsoft.Json"
#r "Microsoft.Azure.DocumentDB.Core"

using System.Net;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Primitives;
using Newtonsoft.Json;
using Microsoft.Azure.Documents;
using Microsoft.Azure.Documents.Client;

private static DocumentClient client = new DocumentClient(new Uri("yourendpoint"), "yourkey");


public static async Task<IActionResult> Run(HttpRequest req, ILogger log)
{
    log.LogInformation("C# HTTP trigger function processed a request.");

    string name = req.Query["name"];

    string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
    dynamic data = JsonConvert.DeserializeObject(requestBody);
    name = name ?? data?.name;

    return name != null
        ? (ActionResult)new OkObjectResult($"Hello, {name}")
        : new BadRequestObjectResult("Please pass a name on the query string or in the request body");
}