BCS

The @iota/iota-sdk/bcs package extends @iota/bcs with IOTA specific scheme definitions.

To learn more about using BCS see the BCS documentation.

the bcs export of @iota/iota-sdk/bcs contains all the same exports as bcs from @iota/bcs plus the following pre-defined schemes:

• U8
• U16
• U32
• U64
• U128
• U256
• ULEB128
• Bool
• String
• Address
• Argument
• CallArg
• CompressedSignature
• GasData
• MultiSig
• MultiSigPkMap
• MultiSigPublicKey
• ObjectArg
• ObjectDigest
• ProgrammableMoveCall
• ProgrammableTransaction
• PublicKey
• SenderSignedData
• SharedObjectRef
• StructTag
• IotaObjectRef
• Transaction
• TransactionData
• TransactionDataV1
• TransactionExpiration
• TransactionKind
• TypeTag

All the upper-cased values are BcsType instances, and can be used directly to parse and serialize data.

import { bcs } from '@iota/iota-sdk/bcs';

bcs.U8.serialize(1);
bcs.Address.serialize('0x1');
bcs.TypeTag.serialize({
    vector: {
        u8: true,
    },
});