Serverless Code Challenges & Tips

1. Write an AWS Lambda function in Python that processes an incoming S3 event and generates a thumbnail image from a larger image uploaded to an S3 bucket.

2. Implement a serverless REST API using AWS API Gateway and AWS Lambda that allows users to create, read, update, and delete items in a DynamoDB table.

3. Create an Azure Function that triggers on an HTTP request, reads a message from a Service Bus Queue, processes it, and then writes the result to Blob Storage.

4. Write a Google Cloud Function in Node.js that responds to HTTP requests and fetches data from Firestore, filtering the results based on a query parameter.

5. Develop a serverless scheduled function on AWS that aggregates user activity logs from DynamoDB and sends a daily summary report via email using SES.

6. Create a Firebase Cloud Function that listens to changes in Firestore and updates a related document when a specific field is modified in real-time.

7. Write an AWS Lambda function that is triggered by an SNS topic and parses the incoming message for specific keywords, storing the results in an S3 bucket.

8. Implement a serverless data processing workflow using AWS Step Functions that coordinates multiple Lambda functions to transform and load data into an RDS database.

9. Write a Google Cloud Function that integrates with third-party APIs to fetch weather data and store the result in Firestore, implementing error handling and retries.

10. Develop a serverless application that uses AWS AppSync to implement a GraphQL API for managing a todo list, including real-time subscriptions for updates.