Mobx-state-tree: Handle Errors

[tgensol]

_Question_

Hi there,

I am looking for a way to handle the YellowBox.js:67 Possible Unhandled Promise Rejection (id: 0): Error: [mobx-state-tree] Error while converting, every time I got an ...is not assignable to type...

I tried to read the docs, search for previous questions, to use middlewares, but I didn't find an easy way to throw the error to my errors handler (like bugsnag or Sentry).

Thanks !

• [X] I've checked documentation and searched for existing issues
• [ ] I tried the spectrum channel

[xaviergonz]

I'm afraid you'll need to provide more info

[tgensol]

Let say we made a change on our back end, the data is[{test: 0}]. Previously it was, [{test: false}]

If my store is waiting for a boolean : test: types.optional(types.boolean,false), I will get the error [mobx-state-tree] Error while converting, because a number is not assignable to a boolean

Every time mobx-state-tree is throwing an error error [mobx-state-tree] Error while converting, my app will not display the content because of that error, and I will not get the error, I am getting it in DEV, in the console (or yellowbox of RN), but I would like to be able to handle the Promise

Does that make more sense ?

[xaviergonz]

https://github.com/mobxjs/mobx-state-tree/blob/master/docs/API/README.md#typecheck

With that function you can run a typecheck of a type against a json (snapshot) and catch the exception it will throw

[tgensol]

I see, I will try with the typecheck thanks :)

Could be cool to have .catch(), on a Store, for handling every errors which happens in the store

[xaviergonz]

Feel free to open an issue with any proposal about catch or to reopen this one if you need more help :)
For now closing this one

[lock[bot]]

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