besu-network-manager/dist/GenesisGenerator.js

TypeScript library for managing Hyperledger Besu networks with Clique consensus using Docker

export class GenesisGenerator {
    static generateGenesis(config) {
        let extraData = '0x' + '0'.repeat(64);
        for (const validator of config.validators) {
            extraData += validator.startsWith('0x') ? validator.slice(2) : validator;
        }
        extraData += '0'.repeat(130);
        const genesis = {
            config: {
                chainId: config.chainId,
                berlinBlock: 0,
                clique: {
                    blockperiodseconds: 4,
                    epochlength: 30000
                }
            },
            coinbase: '0x0000000000000000000000000000000000000000',
            difficulty: '0x1',
            extraData,
            gasLimit: '0xa00000',
            mixHash: '0x0000000000000000000000000000000000000000000000000000000000000000',
            nonce: '0x0',
            timestamp: '0x5c51a607',
            alloc: {
                '0xaeeB85e5b9aD65E72F9924E68a164B85110d3df8': {
                    balance: '0x200000000000000000000000000000000000000000000000000000000000000'
                }
            }
        };
        return genesis;
    }
}
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