Initial commit

.editorconfig

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+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = false
+insert_final_newline = false

.gitignore

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+node_modules/
+.vscode/

LICENSE

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+MIT License
+
+Copyright (c) 2020 Joshua Seigler
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+Repository for following https://www.youtube.com/watch?v=ed8SzALpx1Q
+
+## Usage
+
+```
+npm install
+npm start
+```

server/app.js

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+const express = require('express');
+const graphqlHTTP = require('express-graphql');
+
+const schema = require('./schema/schema');
+
+const app = express();
+
+app.use('/graphql', graphqlHTTP({
+  schema
+}));
+
+app.listen(4000, () => {
+  console.log('Listening on http://localhost:4000');
+});

server/package.json

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+{
+  "name": "graphql-playground",
+  "version": "1.0.0",
+  "description": "Playing with GraphQL to learn it",
+  "main": "index.js",
+  "scripts": {
+    "start": "nodemon app",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/seigler/graphql.git"
+  },
+  "author": "Joshua Seigler",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/seigler/graphql/issues"
+  },
+  "homepage": "https://github.com/seigler/graphql#readme",
+  "dependencies": {
+    "express": "^4.17.1",
+    "express-graphql": "^0.9.0",
+    "graphql": "^14.6.0"
+  },
+  "devDependencies": {
+    "nodemon": "^2.0.2"
+  }
+}

server/schema/schema.js

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+const graphql = require('graphql');
+
+const {
+  GraphQLObjectType,
+  GraphQLString,
+  GraphQLSchema
+} = graphql;
+
+const BookType = new GraphQLObjectType({
+  name: 'Book',
+  fields: () => ({
+    id: { type: GraphQLString },
+    name: { type: GraphQLString },
+    genre: { type: GraphQLString }
+  })
+});
+
+const RootQuery = new GraphQLObjectType({
+  name: 'RootQueryType',
+  fields: {
+    book: {
+      type: BookType,
+      args: { id: { GraphQLString } },
+      resolve (parent, { id }) {
+        // code to retrieve data from db or other source
+      }
+    }
+  }
+});
+
+module.exports = new GraphQLSchema({
+  query: RootQuery
+});