This article provides a comprehensive guide on how to build applications for sending and receiving webhooks on AWS, covering two scenarios: webhooks provider (sending webhooks) and webhooks consumer (receiving webhooks).

Specifically, the article covers:

• Reference architectures and best practices for sending webhooks, including event generation, filtering, delivery, payload structure and size, security, subscription management, costs, monetization, monitoring, and advanced scenarios.
• Reference architectures and best practices for receiving webhooks, including scalability, authorization and verification, payload size, idempotency, ordering, flexible processing, and cost considerations.
• The article highlights the use of various AWS services such as Amazon DynamoDB, Amazon EventBridge, Amazon API Gateway, AWS Lambda, Amazon S3, and AWS Step Functions in building webhook solutions.
• Conclusion emphasizing the importance of webhooks for application integration and providing resources for standards and best practices, as well as serverless learning resources.