get the firmware

src/index.ts

@@ -18,6 +18,8 @@ export default class Updater {
         private readonly _updaterServiceUUID: string = "71a4438e-fd52-4b15-b3d2-ec0e3e56193b";
         private readonly _updaterVersionCharactersiticUUID: string = "1978a3df-c009-4837-b295-57ef429dde8c";
 
+        private file: Int8Array;
+
         constructor(archiveURL: string = "/", feedType: string = "atom", bleObject?: BLECentralPlugin.BLECentralPluginStatic) {
                 this.archiveURL = archiveURL;
                 this.feedType = feedType;
@@ -176,5 +178,28 @@ export default class Updater {
         public async getBoardVersion(): Promise<string> {
                 return await this.readVersionNumber();
         }
+        
+        /*
+        FILE FLASHING
+        */
+
+        public async getFirmware(version: versionNotes): Promise<boolean> {
+                try {
+                        const res = await fetch(`${this.archiveURL}/download/${version.title}/firmware.bin`);
+                        let buf = await res.arrayBuffer();
+                        this.file = new Int8Array(buf);
+                        return true;
+                } catch {
+                        return false;
+                }
+        }
+
+        public getFileSize(): number {
+                return this.file.byteLength;
+        }
+
+        // public async flashFirmware(): Promise<boolean> {
+                
+        // }
 }