goftp | Golang FTP library with Walk support | TLS library
kandi X-RAY | goftp Summary
kandi X-RAY | goftp Summary
Golang FTP library with Walk support.
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QUESTION
I am trying to write a simple Go program which connects to an FTP server, list the files in a specified directory and pulls them.
The code is this:
...ANSWER
Answered 2021-Feb-28 at 07:32You're attempting to loop through files
when ReadDir()
returns an error. That will never work, as any time an error is returned files
is nil
.
This is pretty standard behavior and can be confirmed by reading the implementation of ReadDir()
.
I'm guessing you may have used the the example from the project used to demonstrate ReadDir()
as a starting point. Within the example, the error handling is involved because it's deciding whether or not to continue walking the directory tree. However, note that when ReadDir()
returns an error that doesn't result in stopping the program, the subsequent for loop is a no-op, since files
is nil
.
Here's a small program that demonstrates successfully using the results of Readdir()
in a straightforward manner:
QUESTION
I'm trying to organize my code using interfaces in Go.
I have 2 sources of data: FTP and API. In each source, I have several structs that make the logic vary depending on the case.
In this question, I will omit API and stick with FTP.
My problem comes from the impossibility to say: FTPAcq is also an Acquisition
If FetchMeters()
, when I do ftp.Decrypt(nil)
I would like ftp to be "compatible" with FTPAcq
Here is my code:
...ANSWER
Answered 2020-Mar-13 at 16:40FTP
does not implement FTPAcq
. It implements only Acquisition
. It doesn't even have Decrypt()
as a method, interface or not.
FTPSGE
and FTPTA
implement FTPAcq
, but they are not the same type as FTP
.
I don't know what you're trying to accomplish, but perhaps something to try is embedding FTP
in FTPSGE
and FTPTA
. This gives those 2 types the fields and methods of the embedded type and still allows you to define additional methods on those types (the methods for FTPAcq
in your case).
For example
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