Limit order structure

Field	Type	Inner Solidity type	Description
`salt`	`string`	`uint256`	some unique value. It is necessary to be able to create limit orders with the same parameters (so that they have a different hash)
`makerAsset`	`string`	`address`	the address of the asset you want to sell (address of a token contract)
`takerAsset`	`string`	`address`	the address of the asset you want to buy (address of a token contract)
`maker`	`string`	`address`	the address of the limit order creator
`receiver`	`string`	`address`	by default contains a zero address, which means that taker asset will be sent to the address of the creator of the limit order. If you set a value, then taker asset will be sent to the specified address
`allowedSender`	`string`	`address`	by default contains a zero address, which means that a limit order is available for everyone to fill. If you set a value, then the limit order will be available for execution only for the specified address (private limit order)
`makingAmount`	`string`	`uint256`	amount of maker asset
`takingAmount`	`string`	`uint256`	amount of taker asset
`interactions`	`string`	`bytes`	hex bytes string with interactions meta fields `concat(makerAssetData, takerAssetData, getMakingAmount, getTakingAmount, predicate, permit, preIntercation, postInteraction)`
`offsets`	`string`	`uint256`	every 32's bytes represents offset of the n'ths interaction

`interactions` meta fields

Index	Field	Type	Inner Solidity type	Description
0	`makerAssetData`	`string`	`bytes`	the technical info about a maker asset and its amount
1	`takerAssetData`	`string`	`bytes`	the technical info about a taker asset and its amount
2	`getMakingAmount`	`string`	`bytes`	technical information to get the amount of the maker asset
3	`getTakingAmount`	`string`	`bytes`	technical information to get the amount of the taker asset
4	`predicate`	`string`	`bytes`	a predicate call data. See more Predicate docs
5	`permit`	`string`	`bytes`	a permit (`EIP-2612`) call data. Could be built using utility library
6	`preInteraction`	`string`	`bytes`	What to do before the transfer. A call data for InteractiveNotificationReceiver. See more Interaction receiver docs
7	`postInteraction`	`string`	`bytes`	What tot do after the transfer has been made. a call data for InteractiveNotificationReceiver. See more Interaction receiver docs

Example:#

await new LimitOrderBuilder(...).buildLimitOrder({    makerAssetAddress: '0x000000000000000000000000000000000000000A',    takerAssetAddress: '0x000000000000000000000000000000000000000B',    makerAddress: '0x0000000000000000000000000000000000000001',    receiver: '0x0000000000000000000000000000000000000002',    allowedSender: '0x0000000000000000000000000000000000000003',    makingAmount: '100',    takingAmount: '200',    getMakingAmount: '0x11',    getTakingAmount: '0x2222',    predicate: '0x333333',    permit: '0x44444444',    preInteraction: '0x5555555555',    postInteraction: '0x666666666666',});
// {//     salt: '390590399942',//     makerAsset: '0x000000000000000000000000000000000000000A',//     takerAsset: '0x000000000000000000000000000000000000000B',//     maker: '0x0000000000000000000000000000000000000001',//     receiver: '0x0000000000000000000000000000000000000002',//     allowedSender: '0x0000000000000000000000000000000000000003',//     makingAmount: '100',//     takingAmount: '200',//     offsets: '566158880104319961733422544660299808878295192710391671368140609028096',//     interactions: '0x112222333333444444445555555555666666666666'// }

Where the each offset is iteration bytes offset:

// interactions: '0x112222333333444444445555555555666666666666'//                  ^ ^   ^     ^       ^         ^          ^//                  1 2   4     7       11        16         21
// Note: offset is bytes offset. Not a hex offset.// // > Buffer.from('112222333333444444445555555555666666666666', 'hex')// <Buffer 11 22 22 33 33 33 44 44 44 44 55 55 55 55 55 66 66 66 66 66 66>//         ^  ^     ^        ^           ^              ^              ^//         1  2     4        7           11             16             21
(0n << (0n))                // makerAssetData, length: 0, start: 0, end:  0    + (0n << (32n * 1n))    // takerAssetData, length: 0, start:  0, end: 0    + (1n << (32n * 2n))    // getMakingAmount, length: 1, start: 0, end: 1    + (3n << (32n * 3n))    // getTakingAmount, length: 2, start: 2, end: 3    + (6n << (32n * 4n))    // predicate, length: 3, start: 4, end: 6    + (10n << (32n * 5n))   // permit, length: 4, start: 7, end: 10    + (15n << (32n * 6n))   // preInteraction, length: 5, start: 11, end: 15    + (21n << (32n * 7n))   // postInteraction, length: 6, start: 16, end: 21===566158880104319961733422544660299808878295192710391671368140609028096===0x150000000f0000000a0000000600000003000000010000000000000000// ^       ^       ^       ^       ^       ^       ^// 21      15      10      6       3       1       0