Merge pull request #3089 from poanetwork/vb-coingecko-id

CoinGecko API coin id environment variable

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## Current
 
 ### Features
+- [#3089](https://github.com/poanetwork/blockscout/pull/3089) - CoinGecko API coin id environment variable
 - [#3069](https://github.com/poanetwork/blockscout/pull/3069) - Make a link to address page on decoded constructor argument of address type
 - [#3067](https://github.com/poanetwork/blockscout/pull/3067) - Show proper title of the tile or container for token burnings/mintings instead of "Token Transfer"
 - [#3066](https://github.com/poanetwork/blockscout/pull/3066) - ERC-721 token instance page: link to token added

apps/explorer/config/config.exs

@@ -9,6 +9,7 @@ use Mix.Config
 config :explorer,
   ecto_repos: [Explorer.Repo],
   coin: System.get_env("COIN") || "POA",
+  coingecko_coin_id: System.get_env("COINGECKO_COIN_ID"),
   token_functions_reader_max_retries: 3,
   allowed_evm_versions:
     System.get_env("ALLOWED_EVM_VERSIONS") ||

apps/explorer/lib/explorer/exchange_rates/source/coin_gecko.ex

@@ -44,7 +44,14 @@ defmodule Explorer.ExchangeRates.Source.CoinGecko do
 
   @impl Source
   def source_url do
-    {:ok, id} = coin_id()
+    explicit_coin_id = Application.get_env(:explorer, :coingecko_coin_id)
+
+    {:ok, id} =
+      if explicit_coin_id do
+        {:ok, explicit_coin_id}
+      else
+        coin_id()
+      end
 
     "#{base_url()}/coins/#{id}"
   end