1 files changed, 28 insertions, 0 deletions
diff --git a/src/main/util/downloader.ts b/src/main/util/downloader.ts
new file mode 100644
index 0000000..075097d
--- /dev/null
+++ b/src/main/util/downloader.ts
@@ -0,0 +1,28 @@
+var fs = require('fs');
+var request = require('request');
+var progress = require('request-progress');
+
+export type Progress = {
+  percent:number,
+  speed:number,
+  size:{
+    total:number,
+    transfered:number
+  },
+  time:{
+    elapsed:number,
+    remaining:number
+  }
+};
+
+export function download(url:string,targetLocation:string,onprogress: (state:Progress)=>void):Promise<any>{
+  return new Promise((resolve:any,reject:any)=>{
+    progress(request(url), {
+      throttle: 500
+    })
+    .on('progress', onprogress)
+    .on('error', reject)
+    .on('end', resolve)
+    .pipe(fs.createWriteStream(targetLocation));
+  });
+}