CODEWITHSUNDEEP
delphiftpindydelphi-xe6
Mano
Mano

Reputation: 21

Upload file fragment by FTP

I need to develop a backup application for my company, saving files to an FTP server. From what I researched, I can use the TIdFTP component of the Indy library.

I was analyzing here, and I noticed that some files, especially database files, are more than 10GB in size.

My question is: Is there any way that if a connection problem occurs, the file copy restarts from where it left off? Without having to restart from scratch?

I am using Delphi XE6.

Upvotes: 2

Views: 540

Answers (1)

Remy Lebeau
Remy Lebeau

Reputation: 595402

The FTP protocol has a REST command for resuming broken file transfers.

Indy's TIdFTP component has ACanOverwrite and AResume parameters on its Get() method, and AAppend and AStartPos parameters on its Put() method. Use these parameters for resuming broken transfers.

The TIdFTP.ResumeSupported property tells you if the server supports the REST command (most FTP servers do).

Upvotes: 7

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