Function encodeGenesisData

Function to encode genesis data in order to launch a new blockchain. The different values are serialized using protobuffers. One of the arguments is the dictionary which contains the relevant information to perform the serialization. By default the function contains the dictionary for the following keys:

• "object_key::head_block"
• "object_key::chain_id"
• "object_key::genesis_key"
• "object_key::resource_limit_data"
• "object_key::max_account_resources"
• "object_key::protocol_descriptor"
• "object_key::compute_bandwidth_registry"
• "object_key::block_hash_code"

Example

const signer = Signer.fromSeed("seed");
const genesisDataDecoded = {
  entries: [
    {
      space: { system: true },
      alias: "object_key::genesis_key",
      value: signer.address,
    },
  ],
};

const genesisData = await encodeGenesisData(genesisDataDecoded);
console.log(genesisData);

// {
//   entries: [
//     {
//       space: { system: true },
//       key: "EiC3nO+XbeKg4C8ugW7M7XdfmJKY4i3l91KoJWxosQPImA==",
//       value: "AMpASH7CjUHBpl2QR8E5lGKVjVLAvJRg5g==",
//     },
//   ],
// }

Example

adding a custom dictionary

const contractId = Signer.fromSeed("seed").address;
const zone = encodeBase64(decodeBase58(contractId));
const genesisDataDecoded = {
  entries: [
    {
      space: { system: true, zone, id: 1 },
      key: "difficulty_metadata_key",
      value: {
        target: encodeBase64url(toUint8Array("F".repeat(64))),
        last_block_time: "1641038400000",
        difficulty: encodeBase64url(toUint8Array("1".repeat(64))),
        target_block_interval: "10",
      },
    },
  ],
};

const powJson = {
  nested: {
    mypackage: {
      nested: {
        difficulty_metadata: {
          "fields": {
            "target": { "type": "bytes", "id": 1 },
            "last_block_time": { "type": "uint64", "id": 2,
              "options": { "jstype": "JS_STRING" }
            },
            "difficulty": { "type": "bytes", "id": 3 },
            "target_block_interval": { "type": "uint64", "id": 4,
               "options": { "jstype": "JS_STRING" }
            }
          }
        },
      }
    }
  }
}

const dic = {
  difficulty_metadata_key: {
    serializer: new Serializer(powJson),
    typeName: "difficulty_metadata",
  },
};

const genesisData = await encodeGenesisData(genesisDataDecoded, dic);
console.log(genesisData);

// {
//   entries: [
//     {
//       key: "difficulty_metadata_key",
//       space: {
//         id: 1,
//         system: true,
//         zone: "AMpASH7CjUHBpl2QR8E5lGKVjVLAvJRg5g==",
//       },
//       value:
//         "CiD//////////////////////////////////////////xCAlIus4S8aIBERERERERERERERERERERERERERERERERERERERERERIAo=",
//     },
//   ],
// };