decodeErc1155BatchDeposit

Decodes the payload of an input added by the ERC-1155 batch portal (depositBatchERC1155Token).

Portal deposit payloads are packed-encoded (abi.encodePacked) by the rollups contracts InputEncoding library, with layout token (20 bytes) ‖ sender (20 bytes) ‖ abi.encode(tokenIds, values, baseLayerData, execLayerData). There is no function selector, so make sure the input's msgSender is the ERC-1155 batch portal before decoding its payload.

Usage

import { decodeErc1155BatchDeposit, decodeInput } from "@cartesi/codec";
 
const input = decodeInput("0x...");
const deposit = decodeErc1155BatchDeposit(input.payload);
// {
//   token: "0x...",
//   sender: "0x...",
//   tokenIds: [1n, 2n, 3n],
//   values: [100n, 200n, 300n],
//   baseLayerData: "0x",
//   execLayerData: "0xdeadbeef",
// }

Parameters

• payload (Hex | Uint8Array): packed-encoded deposit payload (the payload field of a decoded input).

Return Type

A Erc1155BatchDeposit object:

• token (Address): token contract.
• sender (Address): token sender.
• tokenIds (readonly bigint[]): identifiers of the tokens being transferred.
• values (readonly bigint[]): transfer amounts per token type.
• baseLayerData (Hex | Uint8Array): additional data to be interpreted by the base layer.
• execLayerData (Hex | Uint8Array): additional data to be interpreted by the execution layer.

Addresses are returned checksummed.

Byte fields follow the representation of the encoded data: hex string in, hex string out; byte array in, byte array out. When decoding from a Uint8Array, the returned byte fields are zero-copy subarrays of the input — no data is copied.

Errors

Throws an Error if the payload is shorter than 40 bytes, or a viem decoding error if the data tail is malformed.