Cut a string of characters

Hi,

I need to cut the left part of the character string to derive the Key name of S3 from the signed upload URL.

I have to delete the first part (server1.s3.wasabi.com/)

I tried to use SubString but it ask me:

Position and lenght. (Lenght can be variable so doesn’t works)

I tried to make Replace using a single space and it works. But after, using “trim” cannot take out the space.

Which is the best method to get rid of the left part of the string using wappler formatters?

Thank you

Roberto