from-base64.md

from-base64

from-base64 decodes a base64-encoded string. See also the inverse function to-base64.

Examples

• (from-base64 "") ➜ ""
• (from-base64 "invalid") ➜ error
• (from-base64 "aGVsbG8=") ➜ "hello"

Forms

(from-base64 encoded:string) ➜ string

• encoded is an arbitrary expression.

from-base64 evaluates the given expression and coalesces the result to a string. If either of those steps fail, an error is returned. Otherwise the function will attempt to decode the value, returning the decoded data on success and an error otherwise.