prepare server and db

used project from https://www.howtographql.com/graphql-js/0-introduction

Author: andrew-mak

server/.gitignore

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+.env*
+dist
+
+node_modules
+.idea
+.vscode
+*.log

server/README.md

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+# hackernews-graphql-js
+
+This repository contains the final project for the [**GraphQL.js tutorial**](https://www.howtographql.com/graphql-js/0-introduction/) on [How to GraphQL](https://www.howtographql.com/). Note that it also serves as foundation for all frontend tutorials on the site.

server/package-lock.json

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+{
+  "name": "hackernews-node",
+  "version": "1.0.0",
+  "license": "MIT",
+  "scripts": {
+    "start": "node src/index.js",
+    "dev": "nodemon src/index.js"
+  },
+  "dependencies": {
+    "@prisma/client": "^2.16.1",
+    "apollo-server": "^2.19.0",
+    "bcryptjs": "2.4.3",
+    "jsonwebtoken": "8.5.1"
+  },
+  "devDependencies": {
+    "@prisma/cli": "^2.12.1",
+    "nodemon": "^2.0.6"
+  }
+}

server/package.json

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+# Migration `20201125185150-init`
+
+This migration has been generated by Ryan Chenkie at 11/25/2020, 1:51:50 PM.
+You can check out the [state of the schema](./schema.prisma) after the migration.
+
+## Database Steps
+
+```sql
+CREATE TABLE "Link" (
+    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "description" TEXT NOT NULL,
+    "url" TEXT NOT NULL,
+    "postedById" INTEGER NOT NULL,
+
+    FOREIGN KEY ("postedById") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE
+)
+
+CREATE TABLE "User" (
+    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    "name" TEXT NOT NULL,
+    "email" TEXT NOT NULL,
+    "password" TEXT NOT NULL
+)
+
+CREATE TABLE "Vote" (
+    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    "linkId" INTEGER NOT NULL,
+    "userId" INTEGER NOT NULL,
+
+    FOREIGN KEY ("linkId") REFERENCES "Link"("id") ON DELETE CASCADE ON UPDATE CASCADE,
+    FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE
+)
+
+CREATE UNIQUE INDEX "User.email_unique" ON "User"("email")
+
+CREATE UNIQUE INDEX "Vote.linkId_userId_unique" ON "Vote"("linkId", "userId")
+```
+
+## Changes
+
+```diff
+diff --git schema.prisma schema.prisma
+migration ..20201125185150-init
+--- datamodel.dml
++++ datamodel.dml
+@@ -1,0 +1,37 @@
++datasource db {
++  provider = "sqlite" 
++  url = "***"
++}
++
++generator client {
++  provider = "prisma-client-js"
++}
++
++model Link {
++  id          Int      @id @default(autoincrement())
++  createdAt   DateTime @default(now())
++  description String
++  url         String
++  postedBy    User     @relation(fields: [postedById], references: [id])
++  postedById  Int
++  votes       Vote[]
++}
++
++model User {
++  id       Int    @id @default(autoincrement())
++  name     String
++  email    String @unique
++  password String
++  links    Link[]
++  votes    Vote[]
++}
++
++model Vote {
++  id     Int  @id @default(autoincrement())
++  link   Link @relation(fields: [linkId], references: [id])
++  linkId Int
++  user   User @relation(fields: [userId], references: [id])
++  userId Int
++
++  @@unique([linkId, userId])
++}
+```
+
+

server/prisma/dev.db

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+datasource db {
+  provider = "sqlite" 
+  url = "***"
+}
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+model Link {
+  id          Int      @id @default(autoincrement())
+  createdAt   DateTime @default(now())
+  description String
+  url         String
+  postedBy    User     @relation(fields: [postedById], references: [id])
+  postedById  Int
+  votes       Vote[]
+}
+
+model User {
+  id       Int    @id @default(autoincrement())
+  name     String
+  email    String @unique
+  password String
+  links    Link[]
+  votes    Vote[]
+}
+
+model Vote {
+  id     Int  @id @default(autoincrement())
+  link   Link @relation(fields: [linkId], references: [id])
+  linkId Int
+  user   User @relation(fields: [userId], references: [id])
+  userId Int
+
+  @@unique([linkId, userId])
+}