How do I handle multipart/form-data in Azure Function for file uploads?
Handling Multipart/File Uploads in Azure Functions
In this guide, we will demonstrate how to deploy an Azure Function that handles file uploads using multipart/form-data. We’ll set up the Azure Function infrastructure and the associated Storage Account to store uploaded files.
Let’s walk through the process with an example.
Program Overview
The following example:
- Sets up an Azure Function App.
- Configures a Storage Account to store uploaded files.
- Links the Azure Function App with the Storage Account.
- Defines stack exports for function endpoint and storage account.
import * as pulumi from "@pulumi/pulumi";
import * as azure from "@pulumi/azure";
// Resource group
const example = new azure.core.ResourceGroup("example", {
name: "example-resources",
location: "West Europe",
});
// Storage account for file uploads
const exampleAccount = new azure.storage.Account("example", {
name: "examplestorageacct",
resourceGroupName: example.name,
location: example.location,
accountTier: "Standard",
accountReplicationType: "LRS",
});
// App Service plan
const examplePlan = new azure.appservice.Plan("example", {
name: "example-appserviceplan",
location: example.location,
resourceGroupName: example.name,
sku: {
tier: "Dynamic",
size: "Y1",
},
});
// Azure Function app
const exampleFunctionApp = new azure.appservice.FunctionApp("example", {
name: "example-functionapp",
location: example.location,
resourceGroupName: example.name,
appServicePlanId: examplePlan.id,
storageAccountName: exampleAccount.name,
storageAccountAccessKey: exampleAccount.primaryAccessKey,
appSettings: {
FUNCTIONS_WORKER_RUNTIME: "node",
WEBSITE_RUN_FROM_PACKAGE: "1",
},
});
export const functionEndpoint = exampleFunctionApp.defaultHostname;
export const storageAccountName = exampleAccount.name;
export const storageAccountKey = exampleAccount.primaryAccessKey;
Key Points
- Resource Group: Defined to manage all related resources.
- Storage Account: Configured to store the files being uploaded.
- App Service Plan: Provides the necessary compute resources.
- Function App: Configured to respond to HTTP requests and handle file uploads.
Summary
In this example, we provisioned an Azure Function that can handle multipart file uploads. Additionally, a storage account was configured to store the uploaded files. We also exported relevant outputs like function endpoint and storage account credentials for further usage.
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