Init. Map does not function and only working on backend at the moment.

node_modules/engine.io-parser/build/cjs/decodePacket.js

@@ -0,0 +1,59 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.decodePacket = void 0;
+const commons_js_1 = require("./commons.js");
+const decodePacket = (encodedPacket, binaryType) => {
+    if (typeof encodedPacket !== "string") {
+        return {
+            type: "message",
+            data: mapBinary(encodedPacket, binaryType),
+        };
+    }
+    const type = encodedPacket.charAt(0);
+    if (type === "b") {
+        const buffer = Buffer.from(encodedPacket.substring(1), "base64");
+        return {
+            type: "message",
+            data: mapBinary(buffer, binaryType),
+        };
+    }
+    if (!commons_js_1.PACKET_TYPES_REVERSE[type]) {
+        return commons_js_1.ERROR_PACKET;
+    }
+    return encodedPacket.length > 1
+        ? {
+            type: commons_js_1.PACKET_TYPES_REVERSE[type],
+            data: encodedPacket.substring(1),
+        }
+        : {
+            type: commons_js_1.PACKET_TYPES_REVERSE[type],
+        };
+};
+exports.decodePacket = decodePacket;
+const mapBinary = (data, binaryType) => {
+    switch (binaryType) {
+        case "arraybuffer":
+            if (data instanceof ArrayBuffer) {
+                // from WebSocket & binaryType "arraybuffer"
+                return data;
+            }
+            else if (Buffer.isBuffer(data)) {
+                // from HTTP long-polling
+                return data.buffer.slice(data.byteOffset, data.byteOffset + data.byteLength);
+            }
+            else {
+                // from WebTransport (Uint8Array)
+                return data.buffer;
+            }
+        case "nodebuffer":
+        default:
+            if (Buffer.isBuffer(data)) {
+                // from HTTP long-polling or WebSocket & binaryType "nodebuffer" (default)
+                return data;
+            }
+            else {
+                // from WebTransport (Uint8Array)
+                return Buffer.from(data);
+            }
+    }
+};