@siglesiasg/node-red-hyperledger-fabric-gateway/dist/models/block.model.js

Hyperledger Fabric 2.x nodes for node-red with latest fabric-gateway library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.buildBlockEventModel = exports.RWSetModel = exports.TransactionModel = exports.BlockModel = void 0;
const common_1 = require("@hyperledger/fabric-protos/lib/common");
const fabric_parse_block_1 = require("../libs/fabric-parse-block");
const utf8Decoder = new TextDecoder();
class BlockModel {
}
exports.BlockModel = BlockModel;
class TransactionModel {
}
exports.TransactionModel = TransactionModel;
class RWSetModel {
}
exports.RWSetModel = RWSetModel;
function buildBlockEventModel(blockData, channelId) {
    let blockProtos;
    if (blockData instanceof common_1.Block) {
        blockProtos = (0, fabric_parse_block_1.parseBlock)(blockData);
    }
    else if (blockData instanceof Uint8Array) {
        blockProtos = (0, fabric_parse_block_1.parseBlock)(common_1.Block.deserializeBinary(blockData));
    }
    return {
        blockNumber: Number(blockProtos.getNumber()),
        blockHash: blockProtos.getHash(),
        channelId,
        transactions: getTransactions(blockProtos.getTransactions()),
    };
}
exports.buildBlockEventModel = buildBlockEventModel;
function getTransactions(transactions) {
    const tx = [];
    let transactionIndex = 0;
    for (const txProtos of transactions) {
        tx.push({
            transactionIndex,
            transactionId: txProtos.getChannelHeader().getTxId(),
            isValid: txProtos.isValid(),
            rawData: getRWSet(txProtos.getNamespaceReadWriteSets())
        });
        transactionIndex++;
    }
    return tx;
}
function getRWSet(rwsetProtos) {
    const rw = [];
    let rwIndex = 0;
    for (const rwProtos of rwsetProtos) {
        for (const writeProtos of rwProtos.getReadWriteSet().getWritesList()) {
            const key = writeProtos.getKey();
            let data;
            let isChaincodeOperation;
            if (key.startsWith('namespaces/fields/') || key.startsWith('namespaces/metadata/')) {
                data = undefined;
                isChaincodeOperation = true;
            }
            else {
                data = JSON.parse(utf8Decoder.decode(writeProtos.getValue_asU8()));
            }
            rw.push({
                rwIndex,
                key,
                data,
                isChaincodeOperation,
                isDelete: writeProtos.getIsDelete() ? true : undefined,
            });
            rwIndex++;
        }
    }
    return rw;
}
//# sourceMappingURL=block.model.js.map