Add custom agent support

Author: ddumenko

.gitignore

@@ -2,7 +2,9 @@ wwwroot/*.js
 node_modules
 typings
 dist
+.DS_Store
 
 .idea
 .vscode
 .history
+.npmrc

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pandadoc-node-client",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "description": "The Official PandaDoc Node client SDK",
   "author": "PandaDoc",
   "keywords": [

src/http/http.ts

@@ -1,6 +1,8 @@
 // TODO: evaluate if we can easily get rid of this library
 import * as FormData from "form-data";
 import { URLSearchParams } from 'url';
+import * as http from 'http';
+import * as https from 'https';
 // typings of url-parse are incorrect...
 // @ts-ignore
 import * as URLParse from "url-parse";
@@ -48,10 +50,11 @@ export type RequestBody = undefined | string | FormData | URLSearchParams;
  */
 export class RequestContext {
     private headers: { [key: string]: string } = {
-        "User-Agent": "pandadoc_node_client/4.3.0",
+        "User-Agent": "pandadoc_node_client/4.3.1",
     };
     private body: RequestBody = undefined;
     private url: URLParse;
+    private agent: http.Agent | https.Agent | undefined = undefined;
 
     /**
      * Creates the request context using a http method and request resource url
@@ -124,6 +127,14 @@ export class RequestContext {
     public setHeaderParam(key: string, value: string): void  {
         this.headers[key] = value;
     }
+
+    public setAgent(agent: http.Agent | https.Agent) {
+        this.agent = agent;
+    }
+
+    public getAgent(): http.Agent | https.Agent | undefined {
+        return this.agent;
+    }
 }
 
 export interface ResponseBody {