Started refactoring due to remove node-fetch dependency

package.json

@@ -27,8 +27,7 @@
   },
   "homepage": "https://github.com/AsyncLegs/wayforpay-typescript#readme",
   "dependencies": {
-    "lodash": "^4.17.11",
-    "node-fetch": "^2.6.0"
+    "lodash": "^4.17.11"
   },
   "devDependencies": {
     "@types/jest": "^24.0.13",

src/transport/enums/http.methods.enum.ts

@@ -0,0 +1,9 @@
+export enum HttpMethod {
+  'POST' = 'POST',
+  'PUT' = 'PUT',
+  'PATCH' = 'PATCH',
+  'DELETE' = 'DELETE',
+  'HEAD' = 'HEAD',
+  'OPTIONS' = 'OPTIONS',
+  'GET' = 'GET'
+}

src/transport/enums/index.ts

@@ -0,0 +1 @@
+export * from './http.methods.enum';

src/transport/http.request.ts

@@ -0,0 +1,43 @@
+import * as https from 'https';
+import { parse } from 'url';
+import { HttpMethod } from './enums';
+
+export const request = (url: string, requestData: any) => {
+  const { port, hostname, path } = parse(url);
+  return new Promise((resolve, reject) => {
+    const httpRequest = https.request(
+      {
+        headers: requestData.headers,
+        hostname,
+        method: requestData.method as HttpMethod,
+        path,
+        port
+      },
+      response => {
+        if (
+          response &&
+          response.statusCode &&
+          (response.statusCode < 200 || response.statusCode > 299)
+        ) {
+          reject(
+            new Error(
+              `Request failed, status code: ${
+                response.statusCode
+              }, message is : ${response.statusMessage}`
+            )
+          );
+        }
+
+        const body: any[] = [];
+        response.on('data', chunk => body.push(chunk));
+        response.on('end', () => resolve(body.join('')));
+        response.on('error', err => reject(err));
+      }
+    );
+    httpRequest.on('error', err => reject(err));
+    if (requestData.body) {
+      httpRequest.write(requestData.body);
+    }
+    httpRequest.end();
+  });
+};

src/transport/index.ts

@@ -0,0 +1 @@
+export * from './http.request';

src/utils.ts

@@ -2,16 +2,13 @@ export const serialize = (obj: any) => {
   const str = [];
   for (const p in obj) {
     if (obj.hasOwnProperty(p)) {
-      str.push(encodeURIComponent(p) + "=" + encodeURIComponent(obj[p]));
+      str.push(`${encodeURIComponent(p)}=${encodeURIComponent(obj[p])}`);
     }
   }
   return str.join("&");
 };
 export const propertyExists = (key: string, search: any) => {
-  if (
-    !search ||
-    (search.constructor !== Array && search.constructor !== Object)
-  ) {
+  if (!Array.isArray(search) && search.constructor !== Object) {
     return false;
   }