mst-utils

mst-utils.ts

import { types, IAnyModelType, Instance, cast } from "mobx-state-tree";
import React, { useMemo } from "react";

export const createModel = <T extends IAnyModelType>(
  model: T,
  value?: Record<string, any>
) => types.optional(model, () => model.create(value));

export function castSelf<IStoreInstance, IParentModel>(
  store: IStoreInstance,
  model: IParentModel
) {
  return cast<Instance<IParentModel>>(store as Instance<IParentModel>);
}

export const useModel = (Model: any, values) =>
  useMemo(() => Model.create(values), []);