rhystmorgan / okapi-aiken

Okapi

Okapi is a helper function library written aiken to make drafting cardano smart contracts easier and faster.

add the lib/okapi-aiken directory to your aiken project and import it with

use okapi-aiken/okapi as ok

now you can use any of the okapi helper functions to your validators

validator(o: VerificationKeyCredential) {
  fn spend(d: Datum, r: Redeemer, c: ScriptContext) -> Bool {
    ok.tx_signed_by(c.transaction, o)
  }
}

Okapi Function Library:

Token Datum && Metadata

CIP-68 Token prefixes

get_spend_ref

get_policy_id

get_own_input

get_own_script_hash

get_own_input_value

get_own_outputs

has_own_singleton_output

get_own_singleton_output

has_singleton_output

get_own_singleton_output_value

keep_own_lovelace_value

contains_single_token_of

contains_only_lovelace

tx_signed_by

tx_signed_by_no_list

tx_signed_by_list

token_metadata_name_check

compare_token_names

init_68_datum

make_token_names

make_token_prefix

token_pair_prefix

make_fraction_prefix

fraction_pair_prefix

has_one_singleton_asset_less

how_many_tokens

datum_match

has_ref_with_policy

get_ref_with_policy

has_in_with_policy

get_in_with_policy

has_out_with_policy

get_out_with_policy

has_ref_with_token

get_ref_with_token

has_in_with_token

get_in_with_token

has_out_with_token

get_out_with_token

has_ref_from_credential

get_ref_from_credential

has_input_from_credential

get_input_from_credential

has_output_from_credential

get_output_from_credential

validateList

withBurn

withdraw0

merkel0 listScriptInputs inputOutputs