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Lachesis API

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Opera fully supports the essential parts of web3 API. There are some subtle differences due to the graph structure of the blockchain.

Differences from web3.js API​

Pending blocks

Retrieval of pending blocks isn't supported, because Lachesis doesn't have this entity.

Block Header fields

  • "nonce" is always 0

  • "mixHash" is always 0

  • "sha3Uncles" is always 0

  • "mixHash" is always 0

  • "miner" field is an undefined address

  • "difficulty" is always 0

  • "extraData" is always empty

  • "gasLimit" is always 0xFFFFFFFFFFFF , i.e. infinite (Lachesis has a different transaction authorization mechanism)

  • "receiptsRoot" is always 0

  • "timestampNano" additional field, returns block's consensus time in UnixNano

  • dag_getevent.md

  • dag_geteventpayload.md

  • dag_getheads.md

  • ftm_currentepoch.md