Azure Functions Queue Trigger Python Sample that send email by using SendGrid bindings
| Trigger | In/Out Bindings |
|---|---|
| Queue Trigger | output:SendGrid |
- SendGrid Account/API Key: You need an SendGrid account and API Key with which you can use Azure Functions to send customized email programmatically. For more info on SendGrid, please see How to Send Email Using SendGrid with Azure
- Azure Storage Account (General Purpose Type): You need an Azure Storage account as the function read message info in Azure Queue Storage
You need to configure 2 kinds of bindings: (1) Queue Trigger (2) SendGrid output Binding. You can configure them either by directly editing function.json file or via Azure Functions' "Function Apps - Functions - Integrate" UI in Azure Portal
{
"bindings": [
{
"type": "queueTrigger",
"name": "<The name used to identify the trigger data in your code>",
"direction": "in",
"queueName": "<Name of queue to poll>",
"connection": "<Name of app setting - see (note1)>"
},
{
"type": "sendGrid",
"name": "<The name to identify the request body in your code>",
"from": "<The sender's email address>",
"apiKey": "<Name of app setting for your SendGrid API key>",
"direction": "out"
}
],
"disabled": false
}
- note1 - The connection property must contain the name of an app setting that contains a storage connection string. In the Azure portal, the standard editor in the Integrate tab configures this app setting for you when you select a storage account.
- App Settings - For detail information about how to work with App Service settings, please refer to How to manage a function app in the Azure portal
Here is an example configuration for this sample code:
{
"bindings": [
{
"name": "inputMessage",
"type": "queueTrigger",
"direction": "in",
"queueName": "sendgrid-queue",
"connection": "azurefunctionsb5d4aebe_STORAGE"
},
{
"type": "sendGrid",
"name": "outputMessage",
"from": "sender@contoso.com",
"apiKey": "MY_SENDGRID_API_KEY",
"direction": "out"
}
],
"disabled": false
}
(1) Deploy run.py and functions.json to your function app (2) Configure binding file - function.json (3) Add a message to your queue (4) Check if the function send an email via SendGrid.
See also Strategies for testing your code in Azure Functions