.net - Azure:Function App Cosmosdb触发本地开发

Question

我目前正在开发函数应用，我想使用 CosmosDBTrigger。

这是我的规范:

• dotnet --version > 6.0.401
• func --version > 4.0.4736
• CosmosDB 模拟器 > azure-cosmosdb-emulator-2.14.7-c041c584
• Windows 10 企业版

我的问题:

 The 'blabla' function is in error: Microsoft.Azure.WebJobs.Host: Error indexing method 'Functions.blabla'. Microsoft.Azure.WebJobs.Extensions.CosmosDB: Cannot create Collection Information for blabla_Container in database blabla_Database with lease leases in database blabla_Database : Unable to resolve app setting for property 'CosmosDBTriggerAttribute.ConnectionStringSetting'. Make sure the app setting exists and has a valid value. Microsoft.Azure.WebJobs.Extensions.CosmosDB: Unable to resolve app setting for property 'CosmosDBTriggerAttribute.ConnectionStringSetting'. Make sure the app setting exists and has a valid value.

我的 Azure 函数设置

 public static async Task Run(
        [CosmosDBTrigger(
        databaseName: "blabla_Database",
        collectionName: "blabla_Container",
        ConnectionStringSetting = "AccountEndpoint=https://localhost:8081/;AccountKey=C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==",
        LeaseCollectionName = "leases",
        LeaseCollectionPrefix = "trigger",
        CreateLeaseCollectionIfNotExists = true
        )] string input,
        FunctionContext executionContext
        )

主机.json

    {
  "version": "2.0",
  "logging": {
    "applicationInsights": {
      "samplingSettings": {
        "isEnabled": true,
        "excludedTypes": "Request"
      }
    },
    "logLevel": { "default": "Trace" },
    "fileLoggingMode": "always"
  
  }
}

Local.settings.json

"AzureWebJobsStorage": "UseDevelopmentStorage=true",
"FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",
"FUNCTIONS_WORKER_RUNTIME_VERSION": "~4"

运行 CosmosDBEmulator 的命令

.\Microsoft.Azure.Cosmos.Emulator.exe /Port=8081 /AllowNetworkAccess [/NoFirewall] /Key=C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==

什么有效？

• 我可以毫无问题地访问浏览器
• 我可以从资源管理器创建数据库和容器

所以每当我启动我的函数应用程序时就会出现这个问题，并且我一直在互联网上尝试各种解决方案，但它们都不起作用......甚至检查我的 Windows 防火墙设置...目前我别无选择，并向社区请求帮助。

预先感谢您的宝贵时间。

Answer 1

ConnectionStringSetting 必须是设置的名称，而不是值。

例如:

 public static async Task Run(
        [CosmosDBTrigger(
        databaseName: "blabla_Database",
        collectionName: "blabla_Container",
        ConnectionStringSetting = "myCosmosDBConnection",
        LeaseCollectionName = "leases",
        LeaseCollectionPrefix = "trigger",
        CreateLeaseCollectionIfNotExists = true
        )] string input,
        FunctionContext executionContext
        )

在您的 settings.json 文件中:

{
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",
    "FUNCTIONS_WORKER_RUNTIME_VERSION": "~4",
    "myCosmosDBConnection": "AccountEndpoint=https://localhost:8081/;AccountKey=C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
  }
}

请记住，当您部署此 Function 时，不会部署本地设置文件，您需要在 Function App 配置上设置这些配置。

还要记住，受监控的容器 (blabla_Container) 需要存在。

引用:

• Unable to resolve the value for property 'CosmosDBAttribute.ConnectionStringSetting'
• Running Azure Functions with Cosmos DB locally - cannot find CosmosDBAttribute.ConnectionStringSetting