23 lines
537 B
Plaintext
23 lines
537 B
Plaintext
use aiken/hash.{Blake2b_224, Hash}
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use aiken/list
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use aiken/string
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use aiken/transaction.{ScriptContext}
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use aiken/transaction/credential.{VerificationKey}
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type Datum {
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owner: Hash<Blake2b_224, VerificationKey>,
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}
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type Redeemer {
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msg: ByteArray,
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}
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fn spend(datum: Datum, redeemer: Redeemer, context: ScriptContext) -> Bool {
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let must_say_hello = string.from_bytearray(redeemer.msg) == "Hello, World!"
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let must_be_signed =
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list.has(context.transaction.extra_signatories, datum.owner)
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must_say_hello && must_be_signed
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}
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