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All current users of our mobile app have OAuth1 token and secret stored for using their Dropbox account. With the migration to API v2, we must use OAuth2 access tokens. How can the OAuth1 token and secret be converted to an OAuth2 access token? The API v2 provides a route called /token/from_oauth1 which seems to provide a means to do this, but it requires an OAuth2 access token in order to work. That makes no sense to me since it seems to require that you already have the answer in order to ask the question. How can /token/from_oauth1 be used? And how can we convert our OAuth1 tokens and secrets to OAuth2 access tokens?
No problem, that would look like this:
[DropboxClientsManager setupWithAppKey:@"APP_KEY"]; DBTransportClient *transportClient = [[DBTransportClient alloc] initWithAccessToken:nil selectUser:nil baseHosts:nil userAgent:nil backgroundSessionId:nil delegateQueue:nil appKey:@"APP_KEY" appSecret:@"APP_SECRET"]; [DropboxClientsManager authorizedClient:[[DropboxClient alloc] initWithTransportClient:transportClient]];
[[DropboxClientsManager.authorizedClient.authRoutes tokenFromOauth1:@"OAUTH1_TOKEN_KEY" oauth1TokenSecret:@"OAUTH1_TOKEN_SECRET"] response:^(DBAUTHTokenFromOAuth1Result *result, DBAUTHTokenFromOAuth1Error *routeError, DBRequestError *error) { if (result) { NSLog(@"OAuth 2 access token: %@\n", result.oauth2Token); } else { NSLog(@"%@\n%@\n", routeError, error); } }];
That is the right way to do this, but it looks like the curl example in the documentation for /2/auth/token/from_oauth1 is unfortunately incorrect. I'll let the team know to fix that.
That endpoint actually uses app authentication, so an OAuth 2 access token isn't necessary. This is what the curl example should look like:
curl -X POST https://api.dropboxapi.com/2/auth/token/from_oauth1 \ -u "APP_KEY:APP_SECRET" \ --header "Content-Type: application/json" \ --data "{\"oauth1_token\": \"OAUTH1_TOKEN_KEY\",\"oauth1_token_secret\": \"OAUTH1_TOKEN_SECRET\"}"
No problem, that would look like this:
[DropboxClientsManager setupWithAppKey:@"APP_KEY"]; DBTransportClient *transportClient = [[DBTransportClient alloc] initWithAccessToken:nil selectUser:nil baseHosts:nil userAgent:nil backgroundSessionId:nil delegateQueue:nil appKey:@"APP_KEY" appSecret:@"APP_SECRET"]; [DropboxClientsManager authorizedClient:[[DropboxClient alloc] initWithTransportClient:transportClient]];
[[DropboxClientsManager.authorizedClient.authRoutes tokenFromOauth1:@"OAUTH1_TOKEN_KEY" oauth1TokenSecret:@"OAUTH1_TOKEN_SECRET"] response:^(DBAUTHTokenFromOAuth1Result *result, DBAUTHTokenFromOAuth1Error *routeError, DBRequestError *error) { if (result) { NSLog(@"OAuth 2 access token: %@\n", result.oauth2Token); } else { NSLog(@"%@\n%@\n", routeError, error); } }];
That is great! Thanks!
Can you point us to an example of using this with the new 3.0 SDK changes mentioned in https://github.com/dropbox/dropbox-sdk-obj-c/releases/tag/3.0.0 ?
In the latest version of the SDK, the equivalent code would be:
DBTransportDefaultConfig *transportClient = [[DBTransportDefaultConfig alloc] initWithAppKey:@"APP_KEY" appSecret:@"APP_SECRET"]; [DBClientsManager setupWithTransportConfig:transportClient];
[[DBClientsManager.authorizedClient.authRoutes tokenFromOauth1:@"OAUTH1_TOKEN_KEY" oauth1TokenSecret:@"OAUTH1_TOKEN_SECRET"] setResponseBlock:^(DBAUTHTokenFromOAuth1Result *response, DBAUTHTokenFromOAuth1Error *routeError, DBRequestError * error) { if (response) { NSLog(@"OAuth 2 access token: %@\n", response.oauth2Token); } else { NSLog(@"%@\n%@\n", routeError, error); } }];
If you are migrating from an old official SDK though, we recently added a helper that can automatically migrate those stored tokens:
https://github.com/dropbox/dropbox-sdk-obj-c#migrating-from-api-v1
Thanks Greg, that last link helps a lot.
BTW, there's a typo in Migrating OAuth tokens from earlier SDKs, in the unsuccessfullyMigratedTokenData code. The format either has an extra %@ at the start or there is a missing argument.
NSLog(@"%@DropboxUserID: %@, AccessToken: %@, AccessTokenSecret: %@, StoredAppKey: %@", tokenData[0],
Thanks for letting us know, Steve. This should be updated now!
Let us know if you run into any issues migrating.
Hi, I'm also working on migrating from API v1 to v2. Do I have to migrate the existing tokens over in order for v2 to work? Can I just set up v2 from scratch and then just ask my users to re-link to Dropbox when needed?
Thanks.
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