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# Using Mobx with multiple stores
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## Summary
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A sample web part that uses the [Mobx ](https://mobx.js.org/ ) library with multiple stores to keep track of the applications state.
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< img src = "assets/demo.gif" / >
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# Compatibility




-Incompatible-red.svg "SharePoint Server 2016 Feature Pack 2 requires SPFx 1.1")


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## Applies to
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* [SharePoint Framework ](https://docs.microsoft.com/sharepoint/dev/spfx/sharepoint-framework-overview )
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* [SharePoint Framework Web part Samples ](https://github.com/pnp/sp-dev-fx-webparts )
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* [Office 365 developer tenant ](https://docs.microsoft.com/sharepoint/dev/spfx/set-up-your-developer-tenant )
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## Solution
Solution|Author(s)
--------|---------
react-mobx-multiple-stores | Kemal Sinanagic / [@kemicza ](http://twitter.com/kemicza ) / kemicza@gmail .com
## Version history
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Version|Date|Comments
-------|----|--------
1.0|May 24, 2019|Initial release
## Minimal Path to Awesome
```sh
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$ git clone https://github.com/pnp/sp-dev-fx-webparts
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$ cd sp-dev-fx-webparts/samples/react-mobx-multiple-stores
$ npm install
$ gulp serve
```
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## Features
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* Enforces that the state always needs be updated in **actions** , using the < em > always</ em > flag for < em > enforceActions</ em > .
* Demonstrates the **toJS** method to convert an observable array to a javascript structure. This is used to render the items in a DetailsList.
* Out-of-the-box MobX **decorators** to keep the code clean.
* **Asynchronous** actions
* MobX **computed** values
* **Typescript** version 3.3.4 using < em > @microsoft/rush -stack-compiler-3.3</ em > for compatibility with the latest MobX version and typings
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## Disclaimer
**THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.**
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< img src = "https://pnptelemetry.azurewebsites.net/sp-dev-fx-webparts/samples/react-mobx-multiple-stores" / >