init

Author: CodeBrew28

.gitignore

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+node_modules
+

README.md

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-# graphql-basics
+# Gr
+
+# Graphql 
+
+GraphQL is query language, a middle layer that defines the API between the front end and backend. It is a way of querying the data you need in a concise, clean manner.
+
+# Motivation
+
+
+A web api is a protocol for interfacing between the client and the server. The current most-commonly used protocol today is REST, in which theyre a multiple types of requests such as get, put, post, and delete which contain headers and a body. This allows it to send and recieve the necessary information for the client and server to interface and send eachother the necessary information. 
+
+As the application scales though, the API needs to accomodate many requests that all do very specific things. Developers dealt with this with two ways:
+
+1. Having many very specific routes, but makes the code difficult to maintain as the api evolves and the client and servr side both have to stay in sync. 
+
+2. Having general endpoints that can be used for multipl purposes, but send and recieve more data than necessary. 
+
+Graphql is a protocol that solves this my deisgning a query language that allows you to pprecisely describe what you wanted to do. It also provides a single endpoint in which the clinet can communicate easily what it needs to do. 
+
+
+## Defining the Schema
+
+The schema is a model of the data that describes the structure of the data and the relationships in between them. 
+
+For instance, if we wanted to define a student with a name, we would define it as a type. 
+
+```javascript
+const schema = gql`
+  type Student {
+    name: String!
+  }
+`;
+
+```
+
+The exclamation mark after ```String``` above means that it is nonullable, and the ```gql``` tag in the beginning allows it to be parsed as graphql. 
+
+## Interacting with the schema
+
+There are three types of interactions: querries, mutations, and subscirptions. 
+
+### Querries
+
+
+
+
+
+
+

index.js

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+const express = require("express");
+const cors = require("cors");
+const { ApolloServer, gql } = require("apollo-server-express");
+
+const app = express();
+
+app.use(cors());
+
+const schema = gql`
+  type Query {
+    me: User
+  }
+
+  type User {
+    username: String!
+  }
+`;
+
+const resolvers = {
+  Query: {
+    me: () => {
+      return {
+        username: "Robin Wieruch"
+      };
+    }
+  }
+};
+
+const server = new ApolloServer({
+  typeDefs: schema,
+  resolvers
+});
+
+server.applyMiddleware({ app, path: "/graphql" });
+
+app.listen({ port: 8000 }, () => {
+  console.log("Apollo Server on http://localhost:8000/graphql");
+});