feat(add instance device to main): add instance device

add instance device to main class

src/sigfox-js.ts

@@ -1,38 +1,25 @@
-import axios, { AxiosInstance } from 'axios'
-
 import { ConfigParams } from './types/config-params'
-import { Device } from './types/device'
 import { API_CONFIG } from './config/constants'
+import { Devices } from './modules/devices'
 
 /**
  * @class SigfoxApiWrapper
  *
  */
 
 export default class SigfoxApi {
-  public rest: AxiosInstance
   public customParams: object
+  public devices: Devices
 
   /**
    * @constructor
    * @param {ConfigParams} customParams ID Client Setup
    */
   constructor(ConfigParams: ConfigParams) {
-    this.rest = axios.create({ baseURL: API_CONFIG.baseURL })
     this.customParams = {
       auth: ConfigParams,
       API_CONFIG
     }
-  }
-
-  /**
-   * The endpoint to get Device Info.
-   * @returns {device}
-   */
-  public getDeviceInfo(deviceId: string) {
-    return this.rest
-      .get<Device>(API_CONFIG.baseURL + `/devices/${deviceId}`, this.customParams)
-      .then(response => response.data)
-      .catch(error => error.response.statusText)
+    this.devices = new Devices(this.customParams)
   }
 }