fn-serverless/examples/echo

Echo Function Image

This images compares the payload info with the header.

Requirements

• Fn API

Development

Building image locally

# SET BELOW TO YOUR DOCKER HUB USERNAME
USERNAME=YOUR_DOCKER_HUB_USERNAME

# build it
./build.sh

Publishing to DockerHub

# tagging
docker run --rm -v "$PWD":/app treeder/bump patch
docker tag $USERNAME/func-echo:latest $USERNAME/func-echo:`cat VERSION`

# pushing to docker hub
docker push $USERNAME/func-echo

Testing image

./test.sh

Running it on Fn

Let's define some environment variables

# Set your Function server address
# Eg. 127.0.0.1:8080
FUNCAPI=YOUR_FUNCTIONS_ADDRESS

Running with Fn

With this command we are going to create an application with name echo.

curl -X POST --data '{
    "app": {
        "name": "echo",
    }
}' http://$FUNCAPI/v1/apps

Now, we can create our route

curl -X POST --data '{
    "route": {
        "image": "'$USERNAME'/func-echo",
        "path": "/echo",
    }
}' http://$FUNCAPI/v1/apps/echo/routes

Testing function

Now that we created our Fn route, let's test our new route

curl -X POST --data '{"input": "yoooo"}' http://$FUNCAPI/r/echo/echo