visibilityspots / coinmarketcap-exporter

coinmarketcap.com Prometheus Exporter

coinmarketcap-exporter

A prometheus exporter for https://coinmarketcap.com/. Provides Prometheus metrics from the API endpoint of Coinmarketcap, such as US price, Bitcoin price, trading volume, etc. Blog post found here.

When running this exporter with both Prometheus and Grafana, you can create dashboards like:

Developing

• Build the image:

docker build -t coinmarketcap-exporter:latest .

• Run it while listening on localhost:9101:

docker run --rm -p 127.0.0.1:9101:9101 coinmarketcap-exporter:latest

• Run it interactively:

docker run --rm -it --entrypoint=/bin/sh -p 127.0.0.1:9101:9101 -v ${PWD}:/opt/coinmarketcap-exporter coinmarketcap-exporter:latest

• Then to launch:

python coinmarketcap.py

Testing the Prometheus Grafana Stack

• In the prometheus-compose directory, run:

docker-compose up

• Go to http://localhost:3000. Log in as admin/admin.
• To import the dashboard, click the "Home" button at the top, then on the right, click "Import Dashboard".
• Enter 3890 in the "Grafana.com Dashboard" field.
• Select the "prometheus" data source.
• Modify the other settings as preferred. Click "Import".
• The new dashboard should be selectable and found at http://localhost:3000/dashboard/db/coinmarketcap-single.
• The Prometheus interface can be accessed at http://localhost:9090

Thanks and Links

• Coinmarketcap API link - https://coinmarketcap.com/api/
• Prometheus exporters - https://prometheus.io/docs/instrumenting/writing_exporters/
• Writing JSON exporters in Python from Robust Perception - https://www.robustperception.io/writing-json-exporters-in-python/
• Grafana Dashboard - https://grafana.com/dashboards/3890