add to .gitignore config.json and create server.js

.gitignore

@@ -130,3 +130,5 @@ dist
 .yarn/install-state.gz
 .pnp.*
 
+# Project
+config.json

server.js

@@ -0,0 +1,24 @@
+const Pop3Command = require("node-pop3");
+const fs = require("fs");
+
+const initalConfig = `{
+    "pop3-config": {
+        "user": "example@example.com",
+        "password": "example",
+        "host": "pop3.example.com",
+    }
+}`;
+
+try {
+	fs.readFileSync("./config.json");
+} catch (e) {
+	fs.writeFileSync("./config.json", initalConfig, {
+		encoding: "utf-8"
+	});
+	console.warn("WARNING config.json is empty. This file was been created. Please, configure it.");
+	return process.exit();
+}
+
+global.config = require("./config.json");
+
+const pop3 = new Pop3Command(global.config["pop3-config"]);