Small go program to POST through incoming webhooks with the same body and headers
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This project can be used to mirror an incoming webhook to N other endpoints. This is originally used to work around the fact that Helpscout only allows setting up 1 webhook endpoint, while we want to send it to more locations.

Webhooks get retried up to 10 times if the connection failed totally, but a 500 return response for example will not trigger this behavior.

There is a catch, this will always return a 200 to the original webhook request. No proxying of requests will be done, it's just fire and forget. So if you are dependent on hooks being retried on a non-20x code, consider yourself warned ;-)

How to run

go build -a .
FORWARDHOOK_SITES="," ./forwardhook

How to build the docker container

This is based on the minimal docker container article from Codeship.

SSL certificates are bundled in to get around x509 errors when requesting SSL endpoints.

CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o forwardhook .
docker build -t bittersweet/forwardhook -f Dockerfile.scratch .

# Push to docker hub
docker push bittersweet/forwardhook

Run it locally

docker run -e "FORWARDHOOK_SITES=https://site:port/path" --rm -p 8000:8000 -it bittersweet/forwardhook
curl local.docker:8000