How to get an async function to return an already created object

ReactJS
1

I have a Typecript- based React component that performs an asynchronous “create” operation. Once that operation is successfully completed, I want to be able to update some other components using the created object.

What I am trying to do is represented below. I am attempting to perform the following actions in sequence:

  Create Data (User Object) --->Send "create" request --> Return the object to another component-->Do something with the object

The data I am creating is below:

interface User {
   firstName: String;
   lastName: string;
}

const aUser: User = {
   firstName: 'James',
   lastName: 'Kirk',
}

I am using Axios to request a server to create the user record in a database:

export const createUser = async (nwUser: NetUser) => {
    const response = await userKey.post<IResult>('/user/create',nwUser);
    return response.data;
}

The code that calls the request function is below. Note that I am attempting to save the aUser object, then return it to the calling function.

function doSubmit(isNew: boolean): aUser {
    let userpromise;
	
    if(isNew) {
	    userpromise = addUser();
    else
	   userpromise = performSomeOtherAction();
	   
   userpromise.then((user)=> return(user));
}

async function addUser(): Promise<User> {
    const result = createUser(aUser);
	
    result.then((value) =>{
        const name = changeObj.firstName+" "+changeObj.lastName;
        if(value.success)
            alert(name+" was successfully added");
        else
            alert("Add of "+name+" failed: "+value.message);
		
		return aUser;
    });

}

Ultimately, what I am trying to do is to call the doSubmit() function from a parent component, which uses useRef() to
access doSubmit. the parent makes the doSubmit call:

const user = doSubmit(true);

so that I can do things with the user object.

Unfortunately, the code as I have written it does not work. I cannot seem to make the addUser() function return the User promise.

Is there a way to do this? How can I make a function like addUser return the promise for an object that exists within a component?