Azure 函数未向 Azure signalR 发送数据

Question

我有 Timer 触发 Azure 函数，它调用 API 并将输出数据发送到 signalR。此外，我已经在应用程序设置中设置了 AzureSignalRConnectionString。但问题是 Azure SignalR 没有在连接指标中显示任何活动。

Azure 函数：

const fetch = require('node-fetch');

module.exports = async function (context) {

    let response = await fetch('<ENDPOINT>');
    let data = await response.json();

    context.bindings.signalRMessages = [{
        "target": "latestData",
        "arguments": [data]
    }];
    context.log('Done');
};

function.json

{
  "bindings": [

  {
    "name": "myTimer",
    "type": "timerTrigger",
    "direction": "in",
    "schedule": "*/5 * * * * *"
  },
  {
    "type": "signalR",
    "name": "signalRMessages",
    "hubName": "health",
    "direction": "out"
  }

  ]
}

Answer 1

根据官方文档，信号器连接字符串需要在绑定模式上：

{
  "type": "signalR",
  "name": "signalRMessages", // name of the output binding
  "hubName": "<hub_name>",
  "connectionStringSetting": "<setting_name>", // Defaults to AzureSignalRConnectionString
  "direction": "out"
}

https://github.com/Azure/azure-functions-signalrservice-extension

使用以下 AZ CLI 命令定义 SignalR 设置：

#========================================================================
#=== Update these variables for your resources.                       ===
#========================================================================
ResourceGroupName=SignalRTestResources
SignalRServiceResource=mySignalRresourcename
WebAppName=myWebAppName

# Get the SignalR primary connection string 
primaryConnectionString=$(az signalr key list --name $SignalRServiceResource \
  --resource-group $ResourceGroupName --query primaryConnectionString -o tsv)

#Add an app setting to the web app for the SignalR connection
az webapp config appsettings set --name $WebAppName \
    --resource-group $ResourceGroupName \
    --settings "Azure__SignalR__ConnectionString=$primaryConnectionString"

https://docs.microsoft.com/en-us/azure/azure-signalr/signalr-concept-authenticate-oauth