I’m trying to export my entire Google Drive file structure to a data format like JSON or XML. The standard approach I’ve been using looks like this:
DriveService driveClient = new DriveService(credentials);
String documentName = driveClient.files().get(documentId).execute().getName();
To obtain the document ID, I use:
FileList.Request listRequest = driveClient.files().list();
FileList results = listRequest.execute();
String documentId = results.getFiles().get(0).getId();
The main issue is that this line:
String documentName = driveClient.files().get(documentId).execute().getName();
Takes way too much time for every single file. When I try to build a complete data export of my Drive contents, the process becomes extremely slow.
I need the file names to properly represent my Google Drive folder structure in the exported data. Has anyone encountered this performance problem before? What’s the best way to speed up this process?
You’re hammering the API with separate requests for each file’s metadata - that’s why it’s so slow. Instead, grab everything upfront with your initial list request. Add setFields("nextPageToken,files(id,name,parents,mimeType,createdTime,modifiedTime)") to pull all the file info in one go. Don’t forget pagination with setPageToken() for big drives - trying to fetch everything at once will bite you. I’ve handled 100k+ file drives this way and the speed difference is night and day. Think of it as a data pipeline, not individual lookups. Your current method scales horribly because every execute() call adds network latency.
Yeah, hit the same issue migrating from Dropbox. You’re hammering the API with too many calls. Just add the name field to your initial list request: listRequest.setFields("files(id,name,parents)"). Kills the need for all those extra get() calls. Network roundtrips are your bottleneck, not processing.
You’re hitting a bottleneck because you’re making individual API calls for each file. I had this exact problem building a backup tool for our shared drives. Skip the get() calls for every file and use the fields parameter in your list() request instead. Try: listRequest.setFields("files(id,name,parents,mimeType)"). You’ll grab file names, hierarchy info, and file types all at once without extra roundtrips. Set pageSize to 1000 too - cuts down on API calls. This dropped my export time from several hours to under 15 minutes for ~50k files. Batch your requests instead of individual metadata calls for each file.