参考Azure Functions中的Cosmos DB nuget包

Question

我正在尝试在我的Azure Function应用程序中使用Cosmos DB Document客户端。我已按照此处提到的步骤-如何在我的Azure Functions中使用NuGet包？

我依赖于project.json-

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

project.json放在函数app里面，app服务编辑器路径是这样的-

< code>https://

这是我的函数代码-

#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，我没有收到任何错误或响应。如果我删除宇宙数据库参考代码，它的工作原理。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");
}

我是否遗漏了某些内容或错误地执行了此操作？如果我在控制台应用程序上使用它，则相同的代码将起作用。对此有什么帮助吗？

Answer 1

函数 2.0 使用函数.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>

并删除额外的＜code＞#r“Microsoft.Azure.Documents.Client”

Answer 2

要在门户中工作，如果您使用< code>Cosmos DB Trigger添加一个函数会更容易，这会将Cosmos DB扩展拉入函数应用程序，然后您可以删除已创建的函数，创建一个新函数，并拉入< code>DocumentClient:

一旦添加了扩展，您就可以拉客户端添加< code>#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");
}