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env-hash

Use env-hash to set the current transaction hash.

Basic syntax​

To set the current transaction hash, use the following syntax:

(env-hash hash)

Arguments​

Use the following argument when using the env-hash Pact function.

ArgumentTypeDescription
hashstringSpecifies the hash value to set as the current transaction hash. The hash must be an unpadded base64-url encoded BLAKE2b 256-bit hash.

Return value​

The env-hash function returns a string indicating that the transaction hash has been set to the specified value.

Example​

The following example demonstrates how to use the env-hash function to set the transaction hash using the base64-url encoded string for the hello string:

pact> (env-hash (hash "hello"))
"Set tx hash to Mk3PAn3UowqTLEQfNlol6GsXPe-kuOWJSCU0cbgbcs8"

The following example illustrates using the env-hash function to create a transaction hash for the test transaction that creates a token:

(env-hash (hash "create-tokens"))