feat: Added type definitions (#93)

Author: Strum355

lib/client.d.ts

@@ -0,0 +1,45 @@
+declare module 'sendgrid-rest' {
+  /**
+   * request holds the request to an API Call
+   * @field `test` use this to allow for http calls
+   * @field `port` set the port for http calls
+   */
+  export interface Request {
+    host: string,
+    method: string,
+    path: string,
+    headers: {[key: string]: any},
+    body: object | string,
+    queryParams: {[key: string]: any},
+    test: boolean,
+    port: string,
+  }
+
+  /**
+   * response holds the response from an API call, use this as an initializer
+   * like so: JSON.parse(JSON.stringify(response))
+   */
+  export interface Response {
+    statusCode: string,
+    body: object | string,
+    headers: {[key: string]: any},
+  }
+  
+  /**
+   * Client allows for quick and easy access any REST or REST-like API.
+   */
+  export class Client {
+    constructor(globalRequest: Request)
+    /**
+     *  utility function to create an empty request object
+     */
+    public emptyRequest(): Request
+    /**
+     * API is the main interface to the API.
+     */
+    public API(endpointRequest: Request, callback: (response: Response) => void): void
+  }
+
+  export var emptyRequest: Request
+  export var request: Request
+}