dropbox client

A flutter plugin for accessing Dropbox.

Setup

Register a Dropbox API app from https://www.dropbox.com/developers . You need dropbox key and dropbox secret.

For Android, add below in AndroidManifest.xml (replace DROPBOXKEY with your key)

    <activity
        android:name="com.dropbox.core.android.AuthActivity"
        android:configChanges="orientation|keyboard"
        android:launchMode="singleTask">
        <intent-filter>

            <!-- Change this to be db- followed by your app key -->
            <data android:scheme="db-DROPBOXKEY" />

            <action android:name="android.intent.action.VIEW" />

            <category android:name="android.intent.category.BROWSABLE" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>

If you need more help setting up Android, please read https://github.com/dropbox/dropbox-sdk-java#setup .

For iOS,

1. add below in Info.plist

    <key>LSApplicationQueriesSchemes</key>
      <array>
          <string>dbapi-8-emm</string>
          <string>dbapi-2</string>
      </array>
   

2. add below in Info.plist (replace DROPBOXKEY with your key)

    <key>CFBundleURLTypes</key>
      <array>
        <dict>
          <key>CFBundleURLSchemes</key>
          <array>
            <string>db-DROPBOXKEY</string>
          </array>
          <key>CFBundleURLName</key>
          <string></string>
        </dict>
      </array>
   

3.a) If you are using Swift, add below code to AppDelegate.swift

    import ObjectiveDropboxOfficial

    // should be inside AppDelegate class
    override func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
      if let authResult = DBClientsManager.handleRedirectURL(url) {
          if authResult.isSuccess() {
              print("dropbox auth success")
          } else if (authResult.isCancel()) {
              print("dropbox auth cancel")
          } else if (authResult.isError()) {
              print("dropbox auth error \(authResult.errorDescription)")
          }
      }
      return true
    }

    // if your are linked with ObjectiveDropboxOfficial 6.x use below code instead

    override func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
      DBClientsManager.handleRedirectURL(url, completion:{ (authResult) in
        if let authResult = authResult {
            if authResult.isSuccess() {
                print("dropbox auth success")
            } else if (authResult.isCancel()) {
                print("dropbox auth cancel")
            } else if (authResult.isError()) {
                print("dropbox auth error \(authResult.errorDescription)")
            }
        }
      });
      return true
    }

3.b) If you are using Objective C, add below code to AppDelegate.m

    #import <ObjectiveDropboxOfficial/ObjectiveDropboxOfficial.h>

    - (BOOL)application:(UIApplication *)app openURL:(NSURL *)url
        options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {
      DBOAuthResult *authResult = [DBClientsManager handleRedirectURL:url];
      if (authResult != nil) {
        if ([authResult isSuccess]) {
          NSLog(@"Success! User is logged into Dropbox.");
        } else if ([authResult isCancel]) {
          NSLog(@"Authorization flow was manually canceled by user!");
        } else if ([authResult isError]) {
          NSLog(@"Error: %@", authResult);
        }
      }
      return NO;          
    }

    // if your are linked with ObjectiveDropboxOfficial 6.x use below code instead

    - (BOOL)application:(UIApplication *)app openURL:(NSURL *)url
        options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {
      BOOL result = [DBClientsManager handleRedirectURL:url completion: ^(DBOAuthResult *authResult) {
        if (authResult != nil) {
          if ([authResult isSuccess]) {
            NSLog(@"Success! User is logged into Dropbox.");
          } else if ([authResult isCancel]) {
            NSLog(@"Authorization flow was manually canceled by user!");
          } else if ([authResult isError]) {
            NSLog(@"Error: %@", authResult);
          }
        }
      }];
      return NO;          
    }

4. Update Deployment Target to iOS 9.0 or above from Xcode. (dropbox_client 0.7.0 and above)

5. Add below permissions to your app from Dropbox App Console:

• files.metadata.read
• files.metadata.write
• files.content.read
• files.content.write

If you need more help setting up for iOS, please read https://github.com/dropbox/dropbox-sdk-obj-c#get-started .

Usage

import 'package:dropbox_client/dropbox_client.dart';

Future initDropbox() async {
    // init dropbox client. (call only once!)
    await Dropbox.init(dropbox_clientId, dropbox_key, dropbox_secret);
}

// Legacy Authorization
String accessToken;

Future testLogin() async {
  // this will run Dropbox app if possible, if not it will run authorization using a web browser.
  await Dropbox.authorize();
}

Future getAccessToken() async {
  accessToken = await Dropbox.getAccessToken();
}

Future loginWithAccessToken() async {
  await Dropbox.authorizeWithAccessToken(accessToken);
}

Future testLogout() async {
  // unlink removes authorization
  await Dropbox.unlink();
}

// OAuth 2 code flow with PKCE that grants a short-lived token
String credentials;

Future testLogin() async {
  // this will run Dropbox app if possible, if not it will run authorization using a web browser.
  await Dropbox.authorizePKCE();
}

Future getCredentials() async {
  credentials = await Dropbox.getCredentials();
}

Future loginWithCredentials() async {
  await Dropbox.authorizeWithCredentials(credentials);
}

Future testLogout() async {
  // unlink removes authorization
  await Dropbox.unlink();
}

// List / Upload / Download

Future testListFolder() async {
  final result = await Dropbox.listFolder(''); // list root folder
  print(result);
  
  final url = await Dropbox.getTemporaryLink('/file.txt');
  print(url);
}

Future testUpload() async {
  final filepath = '/path/to/local/file.txt';
  final result = await Dropbox.upload(filepath, '/file.txt', (uploaded, total) {
    print('progress $uploaded / $total');
  });
}

Future testDownload() async {
  final filepath = '/path/to/local/file.txt';
  final result = await Dropbox.download('/dropbox_file.txt', filepath, (downloaded, total) {
    print('progress $downloaded / $total');
  });
}

Example can be found in example folder.