Helios API/ API Reference/ Namespaces/

config

Mutable global config properties.

Index

Variables

AUTO_SET_VALIDITY_RANGE

• Const AUTO_SET_VALIDITY_RANGE: boolean

The validity time range can be set automatically if a call to tx.time_range in a Helios script is detected. If false the validity range is still set automatically if not set manually but a warning is printed.

Default: false.

CHECK_CASTS

• Const CHECK_CASTS: boolean

Check that from_data casts make sense during runtime, printing a warning if it doesn't. This ony impacts unsimplified UplcPrograms.

Default: false.

DEBUG

• Const DEBUG: boolean

Global debug flag. Currently unused.

Default: false.

IGNORE_UNEVALUATED_CONSTANTS

• Const IGNORE_UNEVALUATED_CONSTANTS: boolean

Ignore constants that can't be evaluated during compile-time.

Default: false.

IS_TESTNET

• Const IS_TESTNET: boolean

If true, Address instances are assumed to be for a Testnet when constructing from hashes or raw bytes, otherwise for mainnet.

Default: true.

MAX_ASSETS_PER_CHANGE_OUTPUT

• Const MAX_ASSETS_PER_CHANGE_OUTPUT: undefined

Maximum number of assets per change output. Used to break up very large asset outputs into multiple outputs.

Default: undefined (no limit).

N_DUMMY_INPUTS

• Const N_DUMMY_INPUTS: number

Calculating the execution budget during tx building requires knowing all the inputs beforehand, which is very difficult because balancing is done after the budget is calculated. Instead we use at least 1 dummy input, which should act as a representative balancing input. For increased robustness we use 2 dummy inputs, one with Txid 0 and other with TxId ffff..., because eg. there are cases where the TxId is being printed, and a Txid of ffff... would overestimate the fee for that. This value must be '1' or '2'.

Default: 2.

Deprecated

STRICT_BABBAGE

• Const STRICT_BABBAGE: boolean

If true, TxOutput is serialized using strictly the Babagge cddl format (slightly more verbose).

Default: false.

VALIDITY_RANGE_END_OFFSET

• Const VALIDITY_RANGE_END_OFFSET: number

Upper offset wrt. the current system time when setting a transaction validity range automatically.

Default: 300 seconds.

VALIDITY_RANGE_START_OFFSET

• Const VALIDITY_RANGE_START_OFFSET: number

Lower offset wrt. the current system time when setting a transaction validity range automatically.

Defaut: 90 seconds.

Functions

set

▸ set(props): void

Modify the config properties

Parameters

Returns

void