Step by Step Guide to Building a Microsoft To Do API Integration in Go

Hey there, fellow Go enthusiast! Ready to dive into the world of Microsoft To Do API integration? Buckle up, because we're about to embark on a journey that'll have you managing tasks like a pro using the microsoft-graph-go-sdk package. Let's get started!

Prerequisites

Before we jump in, make sure you've got these bases covered:

• Go installed on your machine (you're a Gopher, right?)
• A Microsoft 365 developer account (if you don't have one, grab it here)
• An Azure AD app registration (trust me, it's easier than it sounds)

Setting Up the Project

First things first, let's get our project set up:

mkdir todo-api-integration
cd todo-api-integration
go mod init github.com/yourusername/todo-api-integration
go get github.com/microsoftgraph/msgraph-sdk-go

Great! Now we're ready to rock and roll.

Authentication

Alright, time to get our hands dirty with some authentication. We'll be using MSAL (Microsoft Authentication Library) to handle this for us:

import (
    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
    "github.com/microsoftgraph/msgraph-sdk-go"
)

cred, err := azidentity.NewClientSecretCredential(tenantID, clientID, clientSecret, nil)
if err != nil {
    panic(err)
}

client, err := msgraph.NewGraphServiceClientWithCredentials(cred, []string{"https://graph.microsoft.com/.default"})
if err != nil {
    panic(err)
}

Don't forget to replace tenantID, clientID, and clientSecret with your actual values from the Azure AD app registration.

Creating a Graph Client

With our authentication sorted, let's create a Graph client:

graphClient := client.Me()

This client will be our gateway to the wonderful world of Microsoft To Do!

Interacting with To Do API

Now for the fun part - let's start playing with tasks!

Fetching Task Lists

lists, err := graphClient.Todo().Lists().Get(context.Background(), nil)
if err != nil {
    panic(err)
}

for _, list := range lists.GetValue() {
    fmt.Printf("List: %s\n", *list.GetDisplayName())
}

Creating a New Task List

newList := models.NewTodoTaskList()
newList.SetDisplayName(ptr.String("My Awesome List"))

createdList, err := graphClient.Todo().Lists().Post(context.Background(), newList, nil)
if err != nil {
    panic(err)
}

fmt.Printf("Created list: %s\n", *createdList.GetDisplayName())

Adding Tasks to a List

newTask := models.NewTodoTask()
newTask.SetTitle(ptr.String("Learn Go"))

createdTask, err := graphClient.Todo().Lists().ByTodoTaskListId(*createdList.GetId()).Tasks().Post(context.Background(), newTask, nil)
if err != nil {
    panic(err)
}

fmt.Printf("Created task: %s\n", *createdTask.GetTitle())

Updating Task Details

updateTask := models.NewTodoTask()
updateTask.SetTitle(ptr.String("Master Go"))

updatedTask, err := graphClient.Todo().Lists().ByTodoTaskListId(*createdList.GetId()).Tasks().ByTodoTaskId(*createdTask.GetId()).Patch(context.Background(), updateTask, nil)
if err != nil {
    panic(err)
}

fmt.Printf("Updated task: %s\n", *updatedTask.GetTitle())

Marking Tasks as Complete

completeTask := models.NewTodoTask()
completeTask.SetStatus(models.TASKSTATUS_COMPLETED)

completedTask, err := graphClient.Todo().Lists().ByTodoTaskListId(*createdList.GetId()).Tasks().ByTodoTaskId(*createdTask.GetId()).Patch(context.Background(), completeTask, nil)
if err != nil {
    panic(err)
}

fmt.Printf("Task status: %s\n", *completedTask.GetStatus())

Deleting Tasks and Lists

err = graphClient.Todo().Lists().ByTodoTaskListId(*createdList.GetId()).Tasks().ByTodoTaskId(*createdTask.GetId()).Delete(context.Background(), nil)
if err != nil {
    panic(err)
}

err = graphClient.Todo().Lists().ByTodoTaskListId(*createdList.GetId()).Delete(context.Background(), nil)
if err != nil {
    panic(err)
}

fmt.Println("Task and list deleted successfully!")

Error Handling and Best Practices

Remember, in a production environment, you'll want to handle errors more gracefully than just panicking. Consider using proper logging and error reporting mechanisms.

Also, it's a good idea to use rate limiting and implement retries for API calls to ensure your application plays nicely with Microsoft's servers.

Testing the Integration

Don't forget to write tests for your integration! You can use Go's built-in testing package along with mocking libraries to ensure your code behaves as expected.

Conclusion

And there you have it, folks! You've just built a Microsoft To Do API integration in Go. Pretty cool, right? You can now create, read, update, and delete tasks and lists with ease.

Remember, this is just scratching the surface. The Microsoft Graph API offers a ton more functionality, so don't be afraid to explore and experiment. Who knows what awesome productivity tools you might build next?

Resources

Want to dive deeper? Check out these resources:

• Microsoft Graph API documentation
• microsoft-graph-go-sdk GitHub repository

Happy coding, and may your tasks always be organized!