feat: complete rewrite

filters/renounced.filter.ts

@@ -0,0 +1,26 @@
+import { Filter, FilterResult } from './pool-filters';
+import { MintLayout } from '@solana/spl-token';
+import { Connection } from '@solana/web3.js';
+import { LiquidityStateV4 } from '@raydium-io/raydium-sdk';
+import { logger } from '../helpers';
+
+export class RenouncedFilter implements Filter {
+  constructor(private readonly connection: Connection) {}
+
+  async execute(poolState: LiquidityStateV4): Promise<FilterResult> {
+    try {
+      const accountInfo = await this.connection.getAccountInfo(poolState.baseMint, this.connection.commitment);
+      if (!accountInfo?.data) {
+        return { ok: false, message: 'Renounced -> Failed to fetch account data' };
+      }
+
+      const deserialize = MintLayout.decode(accountInfo.data);
+      const renounced = deserialize.mintAuthorityOption === 0;
+      return { ok: renounced, message: renounced ? undefined : 'Renounced -> Creator can mint more tokens' };
+    } catch (e) {
+      logger.error({ mint: poolState.baseMint }, `Failed to check if mint is renounced`);
+    }
+
+    return { ok: false, message: 'Renounced -> Failed to check if mint is renounced' };
+  }
+}