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Running Locally

Installation (via GitHub releases)

On macOS or Linux run the following:

curl -sfL https://raw.githubusercontent.com/serverless/event-gateway/master/install.sh | sh

On Windows download binary.

Installation (via Docker)

There is a official Docker image.

docker pull serverless/event-gateway

Running Locally

Run event-gateway in dev mode:

event-gateway -dev

Running in Docker

docker run -p 4000:4000 -p 4001:4001 serverless/event-gateway -dev

Pass in your AWS credentials

Mounts the ~/.aws folder from the host to the /home/.aws folder inside the container. Event Gateway can then read the credentials from within the container.

docker run -p 4000:4000 -p 4001:4001 -e "HOME=/home" -v ~/.aws:/home/.aws serverless/event-gateway -dev

Preserve state of etcd

While testing if you restart the container running Event Gateway and want to preserve the data in etcd, you can specify a data dir with the -embed-data-dir "/home/data" flag specifying a destination folder. Then you can mount the folder ~/.event-gateway/data from your host into the container at /home/data. Event Gateway will read the data from there.

docker run -p 4000:4000 -p 4001:4001 -v ~/.event-gateway/data:/home/data serverless/event-gateway -embed-data-dir "/home/data" -dev

Operations

Register a Function

Register an AWS Lambda function in the Function Discovery.

curl --request POST \
  --url http://127.0.0.1:4001/v1/spaces/default/functions \
  --header 'content-type: application/json' \
  --data '{"functionId": "hello", "provider":{"type": "awslambda", "arn": "<Function AWS ARN>", "region": "<Region>", "accessKeyId": "<Access Key ID>", "secretAccessKey": "<Secret Access Key>"}}'

Subscribe to an Event

Once the function is register you can subscribe it to you custom event.

curl --request POST \
  --url http://127.0.0.1:4001/v1/spaces/default/subscriptions \
  --header 'content-type: application/json' \
  --data '{"functionId": "hello", "event": "pageVisited"}'

Emit an Event

An event can be emitted using Events API.

curl --request POST \
  --url http://127.0.0.1:4000/ \
  --header 'content-type: application/json' \
  --header 'event: pageVisited' \
  --data '{"userId": "123"}'

After emitting the event subscribed function is called asynchronously.