markheath / funcs-todo-csharp

Examples of various C# function bindings

Azure Functions C# Bindings Sample

This project contains a simple CRUD (Create, Read, Update, Delete) REST API to manage TODO items, using the following options as backing store:

• In-memory implementation
• Blob storage
• Table storage
• Cosmos DB
• Entity Framework Core

It's implemented using Azure Functions V4 in C# isolated model, and can be run against the local storage emulator for Table or Blob storage, and the Cosmos DB emulator.

Get set up

You'll need to set up a local.settings.json file containing connection strings for the Azure Storage and Azure CosmosDb emulators. There's a local.settings.json.sample file you can rename as a starting point.

{
    "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "AzureWebJobsDashboard": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",
    "SqlConnectionString": "Data Source=(LocalDB)\\MSSQLLocalDB;Integrated Security=true;Database=Todos",
    "CosmosDBConnection": "AccountEndpoint=https://localhost:8081/;AccountKey=C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
  }
}

To test Cosmos, in the cosmos DB emulator, create a database called tododb, with a collection called tasks and a partition key of /id

To test the EF backing store, create a new Todos database and then run the TodoTable.sql SQL script against it to create the necessary table. (using SQL Server Object Explorer in Visual Studio is probably easiest)

Testing Locally

You can run the Test.ps1 PowerShell script to run a simple set of tests against the binding type of your choice, to create, read, update and delete todo items.