Implement json request compression

package.json

@@ -16,6 +16,7 @@
 		"nanotimer": "^0.3.15",
 		"smpp": "^0.6.0-rc.4",
 		"ts-node": "^10.9.1",
-		"ws": "^8.13.0"
+		"ws": "^8.13.0",
+		"zlib": "^1.0.5"
 	}
 }

src/HttpServer/HttpServer.ts

@@ -6,6 +6,8 @@ import {RequestHandler} from "./RequestHandler";
 
 const express = require("express");
 const bodyParser = require("body-parser");
+const compression = require("compression");
+const zlib = require("zlib");
 
 const SERVER_PORT: number = Number(process.env.SERVER_PORT) || 8190;
 
@@ -24,6 +26,11 @@ export class HttpServer {
 		this.app = express();
 		this.app.use(bodyParser.json());
 
+		this.app.use(compression({
+			level: 9,
+			strategy: zlib.constants.BROTLI_MODE_TEXT,
+		}));
+
 		let clientApiPath: string = 'ClientEntity';
 		let centerApiPath: string = 'CenterEntity';
 

src/ZlibCoder.ts

@@ -0,0 +1,11 @@
+const zlib = require("zlib");
+
+export default class ZlibCoder {
+	static compress(input: string): Buffer {
+		return zlib.compress(input);
+	}
+
+	static decompress(input: Buffer): string {
+		return zlib.decompress(input).toString();
+	}
+}

src/main.ts

@@ -29,7 +29,7 @@ function cleanup(): void {
 	process.exit(0);
 }
 
-process.on('exit', cleanup);
+// process.on('exit', cleanup);
-process.on('SIGINT', cleanup);
+// process.on('SIGINT', cleanup);
-process.on('SIGUSR1', cleanup);
+// process.on('SIGUSR1', cleanup);
-process.on('SIGUSR2', cleanup);
+// process.on('SIGUSR2', cleanup);