google drive sdk - Service for accessing multiple user cloud storage accounts from single server -


i'm working on free educational web app school music teachers , students allow them collaborate , share mp3 recordings. since earning revenue not goal, i'm looking ways reduce file storage costs. single teacher assignment might produce hundreds of recorded responses. instead of saving these recordings own storage (or service amazon's s3), wondering if there cloud storage services teachers sign - similar google drive - , give server app access storing class's recordings. i'd still manage info recordings , other data in single database on own server, i'd save large files shared storage provided me each teacher. haven't found examples of sort of thing services google drive or dropbox, if it's possible or other services, i'd appreciate link info. expectation teacher pay storage company service according school's usage. service have simple teachers sign , provide me access to, think puts of developer-oriented services out of reach.

suggestions different strategies welcome. i'd prefer not handle financial transactions (so don't want rent space people).


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