aws-webhook-processing

Create infrastructure on AWS to handle webhooks with reliability

Getting Started

Download Terraform client

• Terraform Download Page
• Terraform cli documentation

Create AWS user

create AWS IAM User on AWS IAM and set:

• access type: Programmatic access
• policies: AdministratorAccess

save access_key and secret_key

Configure AWS Provider authentication

run the commands below replacing values for your access and secret keys:

$ export AWS_ACCESS_KEY_ID="anaccesskey"
$ export AWS_SECRET_ACCESS_KEY="asecretkey"

Let's apply Terraform changes

run the commands below:

$ cd terraform/
$ terraform init # to download all dependencies
$ terraform plan # to plan a modification
$ terraform apply # to apply this change

After the terraform apply you can see the API Gateway endpoint in terminal. Use this url to make a HTTP POST

Destroy infrastructure

run terraform destroy to clean up.

Architecture

The architecture created is:

• API Gateway receive HTTP request (Webhook endpoint) and send to Lambda Callback
• Lambda Callback write request's body in SQS Queue
• A new event in SQS Queue start the Lambda Worker
• Lambda Worker process the message

This architecture works, but we can simplify to:

• API Gateway receive HTTP request (Webhook endpoint) and write it in SQS Queue
• A new event in SQS Queue start the Lambda Worker
• Lambda Worker process the message