tsc & prettier

filters/burn.filter.js

@@ -0,0 +1,43 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BurnFilter = void 0;
+const helpers_1 = require("../helpers");
+class BurnFilter {
+    constructor(connection) {
+        this.connection = connection;
+        this.cachedResult = undefined;
+    }
+    execute(poolKeys) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (this.cachedResult) {
+                return this.cachedResult;
+            }
+            try {
+                const amount = yield this.connection.getTokenSupply(poolKeys.lpMint, this.connection.commitment);
+                const burned = amount.value.uiAmount === 0;
+                const result = { ok: burned, message: burned ? undefined : "Burned -> Creator didn't burn LP" };
+                if (result.ok) {
+                    this.cachedResult = result;
+                }
+                return result;
+            }
+            catch (e) {
+                if (e.code == -32602) {
+                    return { ok: true };
+                }
+                helpers_1.logger.error({ mint: poolKeys.baseMint }, `Failed to check if LP is burned`);
+            }
+            return { ok: false, message: "Failed to check if LP is burned" };
+        });
+    }
+}
+exports.BurnFilter = BurnFilter;