React + Redux, how to write to state after data arrives?

Question

Asynchronous programming

Good evening, I make a request to the server in componentDidMount ()
And after I get the props, I need to update the state.
How to check it?

Answer 1

static getDerivedStateFromProps(props, state) {
  if (props.visas[0] !== state.visa) {
    return {
      visa: props.visas[0],
    };
  }

  return null;
}

The this.props.visa array must always exist.

Answer 2

It is possible through the flag, along with the data, to change the state