How to download file to Document folder

[finscn]

like title says. thanks

[finscn]

I try to implement it , @phoboslab , Could you offer me some advices ? Thanks. ( it has passed base test)

- (void) download:(NSString *)urlStr destination:(NSString *)destination callback:(JSObjectRef)callback {

    NSString *filePath = [scriptView pathForResource:destination];

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlStr]];

    [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {

        NSString *errorDesc = NULL;
        if (error) {
            NSLog(@"Download Error:%@",error.description);
        }
        if (data) {
            [data writeToFile:filePath atomically:YES];
            NSLog(@"File is saved to %@",filePath);
        }

        if( callback ) {
            JSContextRef gctx = scriptView.jsGlobalContext;
            JSStringRef jsFilePath = JSStringCreateWithUTF8CString([filePath UTF8String]);
            JSStringRef jsErrorDesc = errorDesc?JSStringCreateWithUTF8CString([errorDesc UTF8String]):NULL;

            JSValueRef params[] = {
                error?JSValueMakeString(gctx, jsErrorDesc):JSValueMakeNull(gctx),
                JSValueMakeString(gctx, jsFilePath)
            };
            [scriptView invokeCallback:callback thisObject:NULL argc:2 argv:params];
            JSValueUnprotectSafe(gctx, callback);
        }
    }];

}


EJ_BIND_FUNCTION(download, ctx, argc, argv)
{

    NSString *url = JSValueToNSString(ctx, argv[0]);
    NSString *destination = JSValueToNSString(ctx, argv[1]);
    JSObjectRef callback = nil;

    if (argc == 3){
        callback = JSValueToObject(ctx, argv[2], NULL);
        if (callback) {
            JSValueProtect(ctx, callback);
        }
    }

    [self download:url destination:destination callback:callback];

    return JSValueMakeBoolean(ctx, true);
}

[finscn]

use case AppUtils is my Extension

var appUtils = new Ejecta.AppUtils();
appUtils.download("http://www.foo.com/bar.file","${Documents}/bar.file", function(err, filePath){
                  console.log("err",err);
                  console.log("filePath",filePath);
          });