validator for IBAN

[jerome-laforge]

• I have looked at the documentation here first?
• I have looked at the examples provided that may showcase my question here?

Package version eg. v9, v10:

v10

Issue, Question or Enhancement:

is it possible to add validator for IBAN?

[b-pagis]

It is quite a hard task to have fully functional IBAN validator with country specific checks. Here is an old comment of mine explaining it why it would be so.

[jerome-laforge]

make sens but can we just check:

• minimal length
• country is valid
• validate checksum
• and let BBAN part unchecked ?

[ccoVeille]

There are some existing libraries about IBAN validation.

https://github.com/almerlucke/go-iban
https://github.com/go-pascal/iban
https://github.com/jacoelho/banking
https://github.com/jbub/banking
https://github.com/gocardless/ibandit
https://github.com/jschaedl/iban-validation

Some are maintained.

Maybe looking at them could help.

[ccoVeille]

please note, my point is not to implement the same thing or use one of this lib as a dependency.

It could be done, but then the maintenance might be a pain, especially for something as specific as IBAN

I'm more likely to suggest people who need IBAN validation to use one of the library I listed in a go-playground/validator custom validator

https://pkg.go.dev/github.com/go-playground/validator/v10#hdr-Custom_Validation_Functions

[nanderv]

please note, my point is not to implement the same thing or use one of this lib as a dependency.

It could be done, but then the maintenance might be a pain, especially for something as specific as IBAN

I'm more likely to suggest people who need IBAN validation to use one of the library I listed in a go-playground/validator custom validator

https://pkg.go.dev/github.com/go-playground/validator/v10#hdr-Custom_Validation_Functions

Fair answer, tho I would not really call IBAN particularly specific, since it's an EU-wide standard, and Social-Security-Numbers are also part of the spec.