Xls20 pallet

Derived from live runtime metadata on TRN root (pallet index 42, captured 2026-05-02). For prose-style documentation see Xls20 on the curated reference side.

Pallet index

42

Calls

6

Events

7

Errors

8

Storage items

4

Constants

1

Calls (extrinsics)

Xls20.set_relayer

See [Pallet::set_relayer].

api.tx.xls20.set_relayer(relayer: [u8;20])

Argument	Type	Doc
relayer	[u8;20]	T::AccountId

Call index: 0

Xls20.set_xls20_fee

See [Pallet::set_xls20_fee].

api.tx.xls20.set_xls20_fee(new_fee: u128)

Argument	Type	Doc
new_fee	u128	Balance

Call index: 1

Xls20.enable_xls20_compatibility

See [Pallet::enable_xls20_compatibility].

api.tx.xls20.enable_xls20_compatibility(collection_id: u32)

Argument	Type	Doc
collection_id	u32	CollectionUuid

Call index: 2

Xls20.re_request_xls20_mint

See [Pallet::re_request_xls20_mint].

api.tx.xls20.re_request_xls20_mint(collection_id: u32, serial_numbers: Vec<u32>)

Argument	Type	Doc
collection_id	u32	CollectionUuid
serial_numbers	Vec&lt;u32&gt;	BoundedVec<SerialNumber, T::MaxTokensPerXls20Mint>

Call index: 3

Xls20.fulfill_xls20_mint

See [Pallet::fulfill_xls20_mint].

api.tx.xls20.fulfill_xls20_mint(collection_id: u32, token_mappings: Vec<(u32,[u8;32])>)

Argument	Type	Doc
collection_id	u32	CollectionUuid
token_mappings	Vec&lt;(u32,[u8;32])&gt;	BoundedVec<(SerialNumber, Xls20TokenId), T::MaxTokensPerXls20Mint>

Call index: 4

Xls20.set_collection_mappings

See [Pallet::set_collection_mappings].

api.tx.xls20.set_collection_mappings(mappings: Vec<(u32,PalletXls20Xls20Collection)>)

Argument	Type	Doc
mappings	Vec&lt;(u32,PalletXls20Xls20Collection)&gt;	Vec<(CollectionUuid, Xls20Collection)>

Call index: 5

Events

Xls20.Xls20MintRequest

Request sent to XLS20 Relayer

Field	Type	Doc
collection_id	u32
serial_numbers	Vec<u32>
token_uris	Vec<Bytes>

Xls20.RelayerSet

A new relayer has been set

Field	Type	Doc
account	[u8;20]

Xls20.Xls20MintFeeSet

A new Xls20 Mint Fee has been set

Field	Type	Doc
new_fee	u128

Xls20.Xls20MappingSet

A new XLS20 mapping has been set

Field	Type	Doc
collection_id	u32
mappings	Vec<(u32,[u8;32])>

Xls20.Xls20CollectionMappingsSet

Xls20 collection mappings have been set

Field	Type	Doc
mappings	Vec<(u32,PalletXls20Xls20Collection)>

Xls20.Xls20CompatibilityEnabled

A collection has had XLS-20 compatibility enabled

Field	Type	Doc
collection_id	u32

Xls20.Xls20MintFeePaid

Additional mint fee for XLS-20 mint has been paid to relayer

Field	Type	Doc
collection_owner	[u8;20]
total_fee	u128

Errors

Xls20.NotRelayer

The caller is not the relayer and does not have permission to perform this action

Xls20.MappingAlreadyExists

There is already a Root native -> XLS-20 mapping for this token

Xls20.Xls20MintFeeTooLow

The supplied fee for minting XLS-20 tokens is too low

Xls20.NotXLS20Compatible

The collection is not compatible with XLS-20

Xls20.NoToken

The NFT does not exist

Xls20.NotCollectionOwner

No the owner of the collection

Xls20.CouldNotDecodeXls20Token

The XLS20 token ID failed to decode

Xls20.CannotBridgeBurnableToken

The token is burnable and cannot be bridged

Storage

Xls20.Relayer

The permissioned relayer

await api.query.xls20.relayer()

Returns: [u8;20]

Modifier: Optional

Xls20.Xls20MintFee

The extra cost of minting an XLS-20 compatible NFT

await api.query.xls20.xls20MintFee()

Returns: u128

Modifier: Default

Xls20.Xls20TokenMap

Maps from TRN native token_id to XLS-20 TokenId

await api.query.xls20.xls20TokenMap(key1, key2)

• Key: (u32,u32) (hashers: Twox64Concat, Twox64Concat)
• Returns: [u8;32]

Modifier: Optional

Xls20.CollectionMapping

Map from XLs-20 Collection to CollectionUuid

await api.query.xls20.collectionMapping(key1)

• Key: {"issuerAddress":"H160","taxon":"u32"} (hasher: Twox64Concat)
• Returns: u32

Modifier: Optional

Constants

Xls20.PalletId

This pallet's ID, used for deriving a sovereign account ID

Type: [u8;8]
SCALE-encoded value: 0x786c7332306e6674

Source: live chain metadata from wss://root.rootnet.live/archive/ws · captured 2026-05-02