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How do I handle async actions in MobX State Tree?

An example of an AI chatbot conversation about handling async actions in MobX State Tree.

😀
You

How do I handle async actions in MobX State Tree?

MagicBuddy
MagicBuddy

In MobX State Tree, you can handle async actions using the flow generator function. This allows you to manage asynchronous operations effectively.

😀
You

Can you show me a simple example of using flow for an async action?

MagicBuddy
MagicBuddy

Sure! Here's a basic example:

import { flow } from 'mobx-state-tree';

const MyModel = types.model({
  data: types.optional(types.string, ''),
}).actions(self => ({
  fetchData: flow(function* () {
    const response = yield fetch('https://api.example.com/data');
    self.data = yield response.json();
  }),
}));
😀
You

What if I need to handle errors during the async operation?

MagicBuddy
MagicBuddy

You can use a try-catch block within the flow function to handle errors. Here's how:

fetchData: flow(function* () {
  try {
    const response = yield fetch('https://api.example.com/data');
    self.data = yield response.json();
  } catch (error) {
    console.error('Failed to fetch data:', error);
  }
}),
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