Contract executor

[blockchain/ethereum/Contract executor]

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Calls an altering method on a smart contract.

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Keywords: smart contract, call, alters

Input ports

• contract address: string

  Receives the address of the contract to interact with.

• contract abi: {string: any}[]

  Receives the ABI of the contract to interact with.

• method name: string

  Receives the method name to execute on the contract.

• parameters: any[]

  Receives the parameters of the method call as array.

• transaction parameters: {string: any}

  Receives the parameters of the transaction. Example: { "gas": 2000000, "value": "foobar" }

• credentials:

  {
    "contract parameters": {
      "contract address": string,
      "abi": {string: any}[],
      "method name": string,
      "parameters": any[],
      "alters": boolean
    },
    "web3_credentials": {"providerUrl": string, "privateKey": string},
    optional "transaction parameters": {string: any}
  }["web3 credentials"]

  Receives the credentials required to interact with the chain.

Output ports

• result: any

  Sends out the result of the method execution.

• error: {"error": string}

  Sends out any error that happened during contract method execution.