chain_get_era_info_by_switch_block

This method returns an EraInfo from the network. Only the last Block in an era, known as a switch block, will contain an era_summary.

Reference: Here

Parameters:

• block_identified- hash (*optional) If you do not supply a block_identifier, the returned information will be the most recent Block.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "chain_get_era_info_by_switch_block",
  "params": [
    {
      "Hash": "13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb"
    }
  ]
}

Returned Value:

• api_version - string RPC API version

• era_summary - Summary of an era

  • block_hash - string hash of the block

  • era_id - integer EraID

  • merkle_proof - string A merkle proof is a construction created using a merkle tree that allows verification of the associated hashes

  • state_root_hash - string the state root hash digest

  • stored_value - object See [StoredValue]

{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "api_version": "1.4.13",
    "era_summary": {
      "block_hash": "13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb",
      "era_id": 42,
      "merkle_proof": "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",
      "state_root_hash": "0808080808080808080808080808080808080808080808080808080808080808",
      "stored_value": {
        "EraInfo": {
          "seigniorage_allocations": [
            {
              "Delegator": {
                "amount": "1000",
                "delegator_public_key": "01e1b46a25baa8a5c28beb3c9cfb79b572effa04076f00befa57eb70b016153f18",
                "validator_public_key": "012a1732addc639ea43a89e25d3ad912e40232156dcaa4b9edfc709f43d2fb0876"
              }
            },
            {
              "Validator": {
                "amount": "2000",
                "validator_public_key": "012a1732addc639ea43a89e25d3ad912e40232156dcaa4b9edfc709f43d2fb0876"
              }
            }
          ]
        }
      }
    }
  }
}  

mainnet

curl https://mainnet.casper.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"id":1,"jsonrpc":"2.0","method":"chain_get_era_info_by_switch_block","params":[]}'

testnet

curl https://testnet.casper.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"id":1,"jsonrpc":"2.0","method":"chain_get_era_info_by_switch_block","params":[]}'