feat(price_pusher): add gauge metrics for source and target price values #3008
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- Add pyth_source_price and pyth_target_price gauge metrics to track latest price values - Update controller to set price value metrics alongside existing timestamp metrics - Use consistent labeling with price_id and alias for metric identification - Convert string prices to numbers for Prometheus gauge compatibility Co-Authored-By: Ali <[email protected]>
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…ture Co-Authored-By: Ali <[email protected]>
tejasbadadare
approved these changes
Sep 2, 2025
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Summary
Adds two new Prometheus gauge metrics to the price pusher to track actual price values from both Pyth (source) and target chains:
pyth_source_price{price_id, alias}- Latest price value from Pyth sourcepyth_target_price{price_id, alias}- Latest price value from target chainThe metrics are updated in the same controller loop where timestamp metrics are already tracked, using consistent labeling and conditional logic.
Rationale
This addresses a debugging need where price discrepancies were observed between UI displays and actual feeds. By exposing the actual price values (not just timestamps) in metrics, operators can monitor and compare price values across different data sources in Grafana dashboards, particularly useful for Solana where the API explorer isn't available.
How has this been tested?
Manual verification:
pnpm turbo buildHuman Review Checklist
Please pay special attention to:
Number(sourcePrice)andNumber(targetPrice)handle all expected price string formats correctly without runtime errors/metricsendpoint and can be queried in Grafanapyth_source_priceandpyth_target_pricefollow Prometheus naming standardsLink to Devin run: https://app.devin.ai/sessions/2d00dbc3592645519ae39b8e78dfda4d
Requested by: Ali ([email protected])