Approve

[blockchain/ethereum/contracts/ERC20/Approve]

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Calls the "approve" method on the ERC20 token contract

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Keywords: erc20, smart contract, token, swap

Input ports

• router address: string

  Receives the address of the router contract that is given the approval for the specified token.

• amount: number

  Receives the amount of tokens to be approved

• token address: string

  Receives the address of the token to be approved

• 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 approve call.

• error: {"error": string}

  Sends out any error that happened during approve call.