Mastering Blockchain Programming with Solidity

Writing function definitions

The Solidity functions are executable units of code within a contract. These are the only access points for the users and the different entities that will interact with a contract. Functions may use function modifiers; they also have a visibility to define the access rights. There can be many functions within a contract.

A deposit function is defined as shown here. Your contract can receive ether along with a method call using the payable keyword, as shown in the following code:

contract AcceptEther {    function deposit() public payable { //function example to accept ETH        //...    }}