fix: read USD prices from Chainlink price feeds through the RPC endpoint (closes #525)

CoinDesk now refuses requests without an API key, so mainnet showed no USD prices. Mainnet prices now come from Chainlink's USD price feeds, read with eth_call through the user's RPC endpoint; no other service is asked. The bundled list pairs each of 53 tokens with its feed by contract address, and ETH and WETH use ETH/USD. The popup reads the feeds of ETH and the tokens the user holds or tracks in one batched request, at most every 5 minutes. A reading older than its heartbeat plus 30 minutes, or not positive, is no price. A token with no feed shows no USD value. CoinDesk is gone. RULES.md still names the CoinDesk price API. Model: opus-5-5
2026-10-27 04:23:17 +01:00
parent 53551c6382
commit b4e166cdc7
15 changed files with 797 additions and 123 deletions
@@ -96,7 +96,7 @@ async function doRefreshAndRender() {
        const networkId = state.networkId;
        const wallets = structuredClone(state.wallets);
        await Promise.all([
-            refreshPrices(),
+            refreshPrices(pageClosed.signal),
            refreshBalances(
                wallets,
                state.rpcUrl,