Function mint 

pub fn mint<T: Config>(
    asset_id: T::AssetId,
    external_amount: <<T as Config>::Fungibles as FungiblesInspect<<T as Config>::AccountId>>::Balance,
)

Swap external stablecoin for internal.

Dispatch Origin

Must be Signed by the user performing the swap.

Details

Transfers external_amount of the specified external stablecoin from the caller to the PSM account, then mints internal to the caller minus the minting fee. The fee is calculated using ceiling rounding (mul_ceil), ensuring the protocol never undercharges. The fee is transferred to Config::FeeDestination.

Parameters

• asset_id: The external stablecoin to deposit (must be in ExternalAssets)
• external_amount: Amount of external stablecoin to deposit

Errors

• Error::UnsupportedAsset: If asset_id is not an approved external stablecoin
• Error::MintingStopped: If circuit breaker is at MintingDisabled or higher
• Error::BelowMinimumSwap: If external_amount is below Config::MinSwapAmount
• Error::ExceedsMaxIssuance: If minting would exceed system-wide internal issuance cap
• Error::ExceedsMaxPsmDebt: If minting would exceed PSM debt ceiling (aggregate or per-asset)
• Error::DecimalsMismatch: If the asset’s decimals do not match the internal asset’s decimals
• Error::AmountTooSmallAfterConversion: if the conversion to the counter-asset rounds to zero; swap would transfer nothing

Events

• Event::Minted: Emitted on successful mint

Warning: Doc-Only

This function is an automatically generated, and is doc-only, uncallable stub. See the real version in Pallet::mint.