pubsub-emulator-spike

Spike to investigate how to locally test GCP PubSub integration with GCP Cloud Functions

Setup

$ python3 -m venv spike $ source spike/bin/activate $ pip install -f requirements.txt

to create a clean Python virtual environment and install dependencies

Then

$ ./start-pubsub-emulator

to pull & run a PubSub emulation environment inside Docker. This will be exposed on TCP/8085

Run

$ PUBSUB_EMULATOR_HOST=localhost:8085 ./pubsub_publish.py

will load some sample messages into the PubSub emulator.

Running

$ PUBSUB_EMULATOR_HOST=localhost:8085 ./pubsub_subscribe.py

in a separate shell will let you view those messages.

Next steps

Use https://github.com/GoogleCloudPlatform/functions-framework-python#quickstart-pubsub-emulator to set up a Python Cloud Function to consume the messages that are in the PubSub emulator