aws-lambda-go

Requirements

• AWS CLI already configured with Administrator permission
• Go 1.x installed
• Docker installed

Setup process

Local development

Install AWS Serverless Application Model (SAM) CLI

You can find complete instructions here. Instructions for MacOS with homebrew are as follows:

brew tap aws/tap
brew install aws-sam-cli

Download Lambda Go Docker container

docker pull lambci/lambda:go1.x

Building functions locally

Path is relative to ./src and does not contain filename.

make build lambda=test/sample

Invoking function locally using a sample empty event

Function must be defined in template.yaml. Event is relative to ./src/events

make invoke func=TestFunction event=empty.json

Invoking function locally through local API Gateway

make start

If the previous command ran successfully you should now be able to interact with your function http://localhost:9000/{path}

Deployment

There is a 3-part process to prepare and deploy our lambdas. Each of the lambdas need to be built in a specific way, uploaded to S3 and template.yml needs the CodeUris converted to S3 URIs before actually deploying to AWS. You can perform each of these steps individually, or run them all with bpd (build package deploy).

make bpd stack=MyTS

Reference the Makefile if you'd like to run these steps independently.