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How to get OAuth2 access token from OAuth1 token and secret with API v2
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...
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); } }];
Greg-DB
Dropbox Community Moderator
Dropbox Community ModeratorThat 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\"}"
Thanks, Greg. That's great. I drilled down to the HTTP API to try to get to the bottom of it, but I really should have asked about the Objective C API, since that's what I use. In that case it looks like I need to call a method on the AUTHRoute object, but I don't see a way to get one of those without a DropboxClient, which requires authentication. Can you give a quick example for Objective C? Thanks!
- Greg-DB
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 ?
- Greg-DB
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
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