Source Code

(define-map members principal bool)

(define-public (join)
  (begin
    (map-set members tx-sender true)
    (ok true)
  )
)

(define-read-only (is-member (user principal))
  (is-some (map-get? members user))
)

Functions (2)

FunctionAccessArgs
joinpublic
is-memberread-onlyuser: principal