Adapted from Terraform tutorial Serverless Applications with AWS Lambda and API Gateway.

NOTE: this example does not set up a Lambda log group and is somehow configured such that AWS Lambda does not automatically create one.

1. Install Terraform

2. Configure AWS credentials.

3. Initialize the project:

   $ terraform init
   

4. Deploy:

   terraform apply
   

5. Set an environment variable for the API Gateway URL and curl some routes:

   $ export BASE=$(terraform output base_url)
   
   $ curl $BASE/foo
   {"id":"foo","count":1}
   
   $ curl $BASE/foo
   {"id":"foo","count":2}    
   
   $ curl $BASE/bar
   {"id":"bar","count":1}    

To clean up resources, run terraform destroy.