Can you show me examples of using the Prometheus Python client library?

Can you show me examples of using the Prometheus Python client library?

Sure! The Prometheus Python client library allows you to instrument your Python applications. For example, you can create a simple counter like this:

from prometheus_client import Counter

# Create a counter
my_counter = Counter('my_counter', 'Description of my counter')

# Increment the counter
my_counter.inc()  # Increment by 1
my_counter.inc(5)  # Increment by 5

What about creating a gauge?

You can create a gauge in a similar way. Here's an example:

from prometheus_client import Gauge

# Create a gauge
my_gauge = Gauge('my_gauge', 'Description of my gauge')

# Set the gauge to a specific value
my_gauge.set(10)

# Increment the gauge
my_gauge.inc()  # Increment by 1

# Decrement the gauge
my_gauge.dec(2)  # Decrement by 2

How do I expose these metrics to Prometheus?

To expose metrics, you can use the built-in HTTP server. Here's how:

from prometheus_client import start_http_server

# Start the server on port 8000
start_http_server(8000)

# Your application logic here