v1.0.0

Overview

Package gas provides two main ways to fetch a gas price from the ETH Gas Station API.

1. Fetch the current recommended price for a given priority level with a new API call each time
   • Use gas.SuggestGasPrice for a specific priority level
   • Use gas.SuggestFastGasPrice to fetch the fast priority level (no arguments)
2. Create a new GasPriceSuggester which maintains a cache of results for a user-defined duration
   • Use gas.NewGasPriceSuggester and specify a max result age
   • Use the returned function to fetch new gas prices, or use the cache based on how old the results are

New in v1

• Adds a closure (NewGasPriceSuggester outer function) that allows user-defined max result age
  • Powered by gasPriceManager which maintains result cache, with max age
  • Thread safe inner function (of type GasPriceSuggester)
  • Adds tests for gasPriceManager which emulate functionality of NewGasPriceSuggester
• Use float64 type for ETH Gas Station API results rather than json.Number
  • Allows simplification of private parsing method

Notes

• Thanks to @jalextowle for the initial implementation of NewGasPriceSuggester