Simple HTTP Endpoint Example

Inspired by the aws-node-simple-http-endpoint, in Ruby!

Use Cases

  • Wrapping an existing internal or external endpoint/service

Deploy

In order to deploy the endpoint, simply run:

sls deploy

The expected result should be similar to:

Serverless: Packaging service...
Serverless: Excluding development dependencies...
Serverless: Uploading CloudFormation file to S3...
Serverless: Uploading artifacts...
Serverless: Uploading service .zip file to S3 (849 B)...
Serverless: Validating template...
Serverless: Updating Stack...
Serverless: Checking Stack update progress...
...............................
Serverless: Stack update finished...
Service Information
service: serverless-ruby-simple-http-endpoint
stage: dev
region: us-east-1
stack: serverless-ruby-simple-http-endpoint-dev
api keys:
  None
endpoints:
  GET - https://spmfbzc6ja.execute-api.us-east-1.amazonaws.com/time
functions:
  current_time: serverless-ruby-simple-http-endpoint-dev-current_time
layers:
  None
Serverless: Removing old service artifacts from S3...

Usage

Send an HTTP request directly to the endpoint using a tool like curl:

curl https://XXXXXXX.execute-api.us-east-1.amazonaws.com/time

Scaling

By default, AWS Lambda limits the total concurrent executions across all functions within a given region to 1000. The default limit is a safety limit that protects you from costs due to potential runaway or recursive functions during initial development and testing. To increase this limit above the default, follow the steps in To request a limit increase for concurrent executions.