GantMan · GantMan · Oct 13, 2019 · Oct 13, 2019
diff --git a/README.md b/README.md
@@ -38,7 +38,8 @@
 | [ReComponent](https://github.com/philipp-spiess/react-recomponent)                       | [<img src="./_art/csb.png" width="40px" />](https://codesandbox.io/s/github/GantMan/ReactStateMuseum/tree/master/React/react-recomponent) [<img src="./_art/octo.png" width="36px" />](https://github.com/GantMan/ReactStateMuseum/tree/master/React/react-recomponent) |                Coming Soon - Contribute Here?                |
 | [undux](https://github.com/bcherny/undux)                       | [<img src="./_art/csb.png" width="40px" />](https://codesandbox.io/s/github/GantMan/ReactStateMuseum/tree/master/React/undux) [<img src="./_art/octo.png" width="36px" />](https://github.com/GantMan/ReactStateMuseum/tree/master/React/undux) |                Coming Soon - Contribute Here?                |
 | [React 16.7.0-alpha useState Hook](https://reactjs.org/docs/hooks-overview.html)                       | [<img src="./_art/csb.png" width="40px" />](https://codesandbox.io/s/31420no9pq) [<img src="./_art/octo.png" width="36px" />](https://github.com/GantMan/ReactStateMuseum/tree/master/React/useState) |                Coming Soon - Contribute Here?                |
-| [redux-lightweight](https://github.com/doniyor2109/redux-lightweight)                       | [<img src="./_art/csb.png" width="40px" />](https://codesandbox.io/s/github/GantMan/ReactStateMuseum/tree/master/React/redux-lightweight) [<img src="./_art/octo.png" width="36px" />](https://github.com/GantMan/ReactStateMuseum/tree/master/React/redux-lightweight) |                Coming Soon - Contribute Here?                |
+| [redux-lightweight](https://github.com/doniyor2109/redux-lightweight)                       | [<img src="./_art/csb.png" width="40px" />](https://codesandbox.io/s/github/GantMan/ReactStateMuseum/tree/master/React/redux-lightweight) [<img src="./_art/octo.png" width="36px" />](https://github.com/GantMan/ReactStateMuseum/tree/master/React/redux-lightweight) |                Coming Soon - Contribute Here?              |
+| [overmind](https://overmindjs.org/?view=react&typescript=false)                       | [<img src="./_art/csb.png" width="40px" />](https://codesandbox.io/s/github/GantMan/ReactStateMuseum/tree/master/React/overmind) [<img src="./_art/octo.png" width="36px" />](https://github.com/GantMan/ReactStateMuseum/tree/master/React/overmind) |                Coming Soon - Contribute Here?                |
 
 ### Examples to help portray the how, why, which, pros, and cons of various state management systems in the React ecosystem.
 

diff --git a/React/overmind/.gitignore b/React/overmind/.gitignore
@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
diff --git a/React/overmind/README.md b/React/overmind/README.md
@@ -0,0 +1,5 @@
+If you use yarn, run:
+`yarn && yarn start`
+
+If you use npm, run:
+`npm i && npm run start`
diff --git a/React/overmind/package.json b/React/overmind/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "overmind",
+  "version": "0.1.0",
+  "description": "React State Museum - Example of Overmind",
+  "dependencies": {
+    "overmind": "^20.0.0",
+    "overmind-react": "^21.0.0",
+    "packlist-components": "1.2.0",
+    "react": "^16.10.2",
+    "react-dom": "^16.10.2",
+    "react-scripts": "3.2.0"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  }
+}
diff --git a/React/overmind/public/index.html b/React/overmind/public/index.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>
diff --git a/React/overmind/src/App.js b/React/overmind/src/App.js
@@ -0,0 +1,21 @@
+import React from "react";
+
+import ListItems from "./Components/listItems";
+import AddItems from "./Components/addItem";
+
+const styles = {
+  fontFamily: "sans-serif",
+  textAlign: "center"
+};
+
+const App = () => {
+  return (
+    <div style={styles}>
+      <h2>Welcome to Overmind</h2>
+      <AddItems />
+      <ListItems />
+    </div>
+  );
+};
+
+export default App;
diff --git a/React/overmind/src/Components/addItem.js b/React/overmind/src/Components/addItem.js
@@ -0,0 +1,19 @@
+import React from "react";
+import { AddPackingItem } from "packlist-components";
+
+import { useApp } from "../Overmind/store";
+
+const AddItems = () => {
+  const { actions, state } = useApp();
+
+  return (
+    <AddPackingItem
+      addItem={actions.addItem}
+      setNewItemText={event => actions.setNewItemName(event.target.value)}
+      value={state.newItemName}
+      clear={actions.clear}
+    />
+  );
+};
+
+export default AddItems;
diff --git a/React/overmind/src/Components/listItems.js b/React/overmind/src/Components/listItems.js
@@ -0,0 +1,12 @@
+import React from "react";
+import { SimpleList } from "packlist-components";
+
+import { useApp } from "../Overmind/store";
+
+const ListItems = () => {
+  const { state } = useApp();
+
+  return <SimpleList value={state.items} />;
+};
+
+export default ListItems;
diff --git a/React/overmind/src/Overmind/store.js b/React/overmind/src/Overmind/store.js
@@ -0,0 +1,29 @@
+import { createOvermind } from "overmind";
+import { createHook } from "overmind-react";
+
+export const useApp = createHook();
+
+export const overmind = createOvermind(
+  {
+    state: {
+      newItemName: "",
+      items: ["nacho", "burrito", "hotdog"]
+    },
+    actions: {
+      setNewItemName({ state }, itemName) {
+        state.newItemName = itemName;
+      },
+      addItem({ state }) {
+        state.items = [...state.items, state.newItemName];
+
+        state.newItemName = "";
+      },
+      clear({ state }) {
+        state.items = [];
+      }
+    }
+  },
+  {
+    devtools: false
+  }
+);
diff --git a/React/overmind/src/index.js b/React/overmind/src/index.js
@@ -0,0 +1,21 @@
+/************************************************
+ * This example is one of many examples
+ *         -= The React State Museum =-
+ * View other state management options and read
+ * more in the blog post and the master repo:
+ *
+ * https://github.com/GantMan/ReactStateMuseum
+ ************************************************/
+import React from "react";
+import { render } from "react-dom";
+import { Provider } from "overmind-react";
+
+import App from "./App";
+import { overmind } from "./Overmind/store";
+
+render(
+  <Provider value={overmind}>
+    <App />
+  </Provider>,
+  document.getElementById("root")
+);