dispatchReduxAction.js

var store = getReduxStore();
var state1 = store.getState();
console.log(state1);

store.dispatch({
  type: 'myType/myAction',
  payload: { payloadField: true }
})


function getReduxStore() {
  // Traverse a dom element
  const stores = new Set();
  const traverse = (element) => {
    let store =
        element?.memoizedState?.element?.props?.store
        || element?.pendingProps?.store
        || element?.stateNode?.store;
   
    if (store) {
      stores.add(store);
    }
  
    if (element.child) {
      traverse(element.child);
    }
  };
  
  // Find the root element for React
  const reactRoot = Array.from(document.querySelectorAll("*[id]")).find((el) => el?._reactRootContainer?._internalRoot?.current);
  
  const internalRoot = reactRoot._reactRootContainer._internalRoot.current;
  
  // Traverse the root react element to find all Redux States in the app
  traverse(internalRoot);
  
  var reduxStore;
  
  [...stores].forEach((store) => {
    // todo: more validations
    if (store.getState()) {
      reduxStore = store;
      return;
    }
  })

  return reduxStore;  
}