Paying a Project

If you know the ID of the project you want to pay, the address of the ecosystem's JBDirectory contract, and the token you want to pay with, you can get the address of the terminal where the project is currently accepting funds. You can find this address by calling JBDirectory.getPrimaryTerminal(...).

function primaryTerminalOf(uint256 projectId, address token) external view override returns (IJBTerminal) { ... }

Once you have the address of the terminal, you can use IJBTerminal.pay(...) to pay it.

function pay(
  uint256 projectId,
  address token,
  uint256 amount,
  address beneficiary,
  uint256 minReturnedTokens,
  string calldata memo,
  bytes calldata metadata
)
  external payable returns (uint256 beneficiaryTokenCount) { ... }

Here's a complete example of how to pay a project:

• For rulesetConfigurations send the following JBRulesetConfig.

  Example:
  
  {
    projectId: 123, // The ID of the project to pay.
    token: 0x000000000000000000000000000000000000EEEe, // The token to pay with. If this is ETH, the `amount` property will be overwritten with the ETH amount sent along with the transaction. If this is an ERC-20 token, the `amount` property will be the amount of the token to pay, and an approval must be made to the terminal before the transaction is sent.
    amount: 100_000_000_000_000_000_000_000, // The amount of the token to pay. The number of decimals used in the fixed point number should match the terminal's accounting context for the token being paid with.
    beneficiary: 0x0123456789012345678901234567890123456789, // The address that will receive the project's tokens issued from the payment.
    minReturnedTokens: 0, // The minimum amount of the project's tokens that will be issued to the beneficiary. 
    memo: "I love you", // A string that will be attached to the transaction as a memo.
    metadata: "0x0" // A bytes array that can be used to pass additional information to a pay hook if the project uses one.
  }