Added basic Apollo Server structure, Prisma database connection and form query by id

.gitignore

@@ -4,6 +4,8 @@
 
 .env.local
 
+*.gen.ts
+
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*

codegen.yml

@@ -0,0 +1,12 @@
+overwrite: true
+schema: "src/typeDefs/typeDefs.gql"
+documents: null
+generates:
+  src/typeDefs/typeDefs.gen.ts:
+    config:
+      useIndexSignature: true
+      wrapFieldDefinitions: true
+      enumsAsTypes: true
+    plugins:
+      - "typescript"
+      - "typescript-resolvers"

nodemon.json

@@ -0,0 +1,6 @@
+{
+  "ignore": ["**/*.test.ts", "**/*.spec.ts", "node_modules"],
+  "watch": ["src"],
+  "exec": "yarn start",
+  "ext": "ts"
+}

package.json

@@ -9,14 +9,20 @@
     "apollo-server": "^2.18.2",
     "graphql": "^15.3.0",
     "jsonwebtoken": "^8.5.1",
-    "jwks-rsa": "^1.10.1"
+    "jwks-rsa": "^1.10.1",
+    "nodemon": "^2.0.4"
   },
   "scripts": {
-    "dev": "ts-node-dev src/index.ts"
+    "dev": "nodemon",
+    "start": "ts-node src/index.ts",
+    "codegen": "graphql-codegen --config codegen.yml"
   },
   "devDependencies": {
+    "@graphql-codegen/cli": "1.17.10",
+    "@graphql-codegen/introspection": "1.18.0",
+    "@graphql-codegen/typescript": "1.17.10",
+    "@graphql-codegen/typescript-resolvers": "1.17.10",
     "ts-node": "^9.0.0",
-    "ts-node-dev": "^1.0.0-pre.63",
     "typescript": "^4.0.3"
   }
 }

prisma/migrations/20201007134933-fix-optional-values/README.md

@@ -0,0 +1,42 @@
+# Migration `20201007134933-fix-optional-values`
+
+This migration has been generated by Dm1tr1y147 at 10/7/2020, 6:49:33 PM.
+You can check out the [state of the schema](./schema.prisma) after the migration.
+
+## Database Steps
+
+```sql
+ALTER TABLE "public"."Answer" ALTER COLUMN "userInput" DROP NOT NULL,
+ALTER COLUMN "userChoise" DROP NOT NULL
+```
+
+## Changes
+
+```diff
+diff --git schema.prisma schema.prisma
+migration 20201006185953-improved-schema-structure..20201007134933-fix-optional-values
+--- datamodel.dml
++++ datamodel.dml
+@@ -2,9 +2,9 @@
+ // learn more about it in the docs: https://pris.ly/d/prisma-schema
+ datasource db {
+   provider = "postgres"
+-  url = "***"
++  url = "***"
+ }
+ generator client {
+   provider = "prisma-client-js"
+@@ -75,10 +75,10 @@
+   formId Int?
+ }
+ model Answer {
+-  userInput  String
+-  userChoise Int
++  userInput  String?
++  userChoise Int?
+   type       AnswerType
+   id               Int             @id @default(autoincrement())
+   FormSubmission   FormSubmission? @relation(fields: [formSubmissionId], references: [id])
+```
+
+

prisma/migrations/20201007134933-fix-optional-values/schema.prisma

@@ -0,0 +1,91 @@
+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+datasource db {
+  provider = "postgres"
+  url = "***"
+}
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+model Form {
+  title            String
+  choisesQuestions ChoisesQuestion[]
+  inputQuestions   InputQuestion[]
+  submissions      FormSubmission[]
+  dateCreated      DateTime          @default(now())
+  author           User              @relation(fields: [userId], references: [id])
+
+  id     Int @id @default(autoincrement())
+  userId Int
+}
+
+model ChoisesQuestion {
+  title    String
+  variants Variant[]
+  type     ChoiseType
+  number   Int
+
+  id     Int   @id @default(autoincrement())
+  Form   Form? @relation(fields: [formId], references: [id])
+  formId Int?
+}
+
+model Variant {
+  text String
+
+  id                Int              @id @default(autoincrement())
+  ChoisesQuestion   ChoisesQuestion? @relation(fields: [choisesQuestionId], references: [id])
+  choisesQuestionId Int?
+}
+
+model InputQuestion {
+  title  String
+  number Int
+
+  id     Int   @id @default(autoincrement())
+  Form   Form? @relation(fields: [formId], references: [id])
+  formId Int?
+}
+
+enum ChoiseType {
+  SELECT
+  CHECK
+  CHOOSE
+}
+
+model User {
+  name  String
+  forms Form[]
+
+  id               Int              @id @default(autoincrement())
+  formsSubmissions FormSubmission[]
+}
+
+model FormSubmission {
+  answers Answer[]
+  date    DateTime @default(now())
+  user    User     @relation(fields: [userId], references: [id])
+
+  id     Int   @id @default(autoincrement())
+  userId Int
+  Form   Form? @relation(fields: [formId], references: [id])
+  formId Int?
+}
+
+model Answer {
+  userInput  String?
+  userChoise Int?
+  type       AnswerType
+
+  id               Int             @id @default(autoincrement())
+  FormSubmission   FormSubmission? @relation(fields: [formSubmissionId], references: [id])
+  formSubmissionId Int?
+}
+
+enum AnswerType {
+  INPUT
+  CHOISE
+}

prisma/migrations/20201007134933-fix-optional-values/steps.json

@@ -0,0 +1,17 @@
+{
+  "version": "0.3.14-fixed",
+  "steps": [
+    {
+      "tag": "UpdateField",
+      "model": "Answer",
+      "field": "userInput",
+      "arity": "Optional"
+    },
+    {
+      "tag": "UpdateField",
+      "model": "Answer",
+      "field": "userChoise",
+      "arity": "Optional"
+    }
+  ]
+}

prisma/migrations/migrate.lock

@@ -1,4 +1,5 @@
 # Prisma Migrate lockfile v1
 
 20201006125838-initial-migration
-20201006185953-improved-schema-structure
+20201006185953-improved-schema-structure
+20201007134933-fix-optional-values

prisma/schema.prisma

@@ -76,8 +76,8 @@ model FormSubmission {
 }
 
 model Answer {
-  userInput  String
-  userChoise Int
+  userInput  String?
+  userChoise Int?
   type       AnswerType
 
   id               Int             @id @default(autoincrement())

src/db/index.ts

@@ -0,0 +1,24 @@
+import { PrismaClient } from "@prisma/client"
+
+const getForm = async (db: PrismaClient, id: number) =>
+  db.form.findOne({
+    where: {
+      id: id,
+    },
+    include: {
+      author: true,
+      choisesQuestions: {
+        include: {
+          variants: true,
+        },
+      },
+      inputQuestions: true,
+      submissions: {
+        include: {
+          answers: true,
+        },
+      },
+    },
+  })
+
+export { getForm }

src/index.ts

@@ -0,0 +1,18 @@
+import { ApolloServer } from "apollo-server"
+
+import typeDefs from "./typeDefs"
+import resolvers from "./resolvers"
+import { PrismaClient } from "@prisma/client"
+
+const server = new ApolloServer({
+  typeDefs,
+  resolvers,
+  context: async () => {
+    const db = new PrismaClient()
+    return { db }
+  },
+})
+
+server.listen().then(({ url }) => {
+  console.log(`Server ready at ${url}`)
+})

src/list.test.json

@@ -1,5 +0,0 @@
-[
-  {
-    
-  }
-]

src/resolvers/Form.ts

@@ -0,0 +1,60 @@
+import { getForm } from "../db"
+import {
+  Form,
+  FormSubmission,
+  QueryFormArgs,
+  QuestionResolvers,
+  Resolver,
+  AnswerResolvers,
+} from "../typeDefs/typeDefs.gen"
+import { ApolloContextType } from "../types"
+
+const formQuery: Resolver<Form, {}, ApolloContextType, QueryFormArgs> = async (
+  _,
+  { id },
+  { db }
+) => {
+  try {
+    const dbForm = await getForm(db, id)
+
+    if (dbForm == null) throw new Error("Not found")
+
+    const form: Form = {
+      id: dbForm.id,
+      title: dbForm.title,
+      questions: [...dbForm.choisesQuestions, ...dbForm.inputQuestions],
+      dateCreated: dbForm.dateCreated.toString(),
+      submissions: dbForm.submissions.map<FormSubmission>((submission) => {
+        return {
+          answers: submission.answers,
+          date: submission.date.toString(),
+          id: submission.id,
+        }
+      }),
+    }
+
+    return form
+  } catch (err) {
+    return err
+  }
+}
+
+const QuestionResolver: QuestionResolvers = {
+  __resolveType(obj: any, context, info) {
+    if (obj.type) {
+      return "ChoisesQuestion"
+    }
+    return "InputQuestion"
+  },
+}
+
+const AnswerResolver: AnswerResolvers = {
+  __resolveType(obj, context, info) {
+    if (obj.type == "CHOISE") return "ChoiseAnswer"
+    if (obj.type == "INPUT") return "InputAnswer"
+
+    return null
+  },
+}
+
+export { formQuery, QuestionResolver, AnswerResolver }

src/resolvers/index.ts

@@ -0,0 +1,17 @@
+import { ApolloContextType } from "../types"
+import { Resolvers } from "../typeDefs/typeDefs.gen"
+import {
+  formQuery as form,
+  QuestionResolver as Question,
+  AnswerResolver as Answer,
+} from "./Form"
+
+const resolvers: Resolvers<ApolloContextType> = {
+  Query: {
+    form,
+  },
+  Question,
+  Answer,
+}
+
+export default resolvers

src/typeDefs/index.ts

@@ -0,0 +1,8 @@
+import { gql } from "apollo-server"
+import fs from "fs"
+
+const typeDefs = gql(
+  fs.readFileSync(__dirname.concat("/typeDefs.gql"), { encoding: "utf-8" })
+)
+
+export default typeDefs

src/typeDefs/typeDefs.gql

@@ -1,20 +1,23 @@
 type Query {
-  forms: [Form]
-  form(id: Int!): Form!
+  forms: [Form!]!
+  form(id: Int!): Form
 }
 
 type Form {
   id: Int!
   title: String!
-  choisesQuestions: [ChoisesQuestion!]!
-  inputQuestions: [InputQuestion!]!
+  questions: [Question!]!
   submissions: [FormSubmission!]!
   dateCreated: String!
 }
-
-type ChoisesQuestion {
+interface Question {
   title: String!
-  variants: [Variant!]!
+  number: Int!
+}
+
+type ChoisesQuestion implements Question {
+  title: String!
+  variants: [Variant!]
   type: ChoiseType!
   number: Int!
 }
@@ -23,7 +26,7 @@ type Variant {
   text: String!
 }
 
-type InputQuestion {
+type InputQuestion implements Question {
   title: String!
   number: Int!
 }
@@ -34,13 +37,23 @@ type FormSubmission {
   date: String!
 }
 
-type Answer {
+interface Answer {
   id: Int!
-  userInput: String
-  userChoise: Int
   type: AnswerType!
 }
 
+type InputAnswer implements Answer {
+  id: Int!
+  type: AnswerType!
+  userInput: String
+}
+
+type ChoiseAnswer implements Answer {
+  id: Int!
+  type: AnswerType!
+  userChoise: Int!
+}
+
 enum ChoiseType {
   SELECT
   CHECK

src/types.ts

@@ -0,0 +1,5 @@
+import { PrismaClient } from "@prisma/client"
+
+export type ApolloContextType = {
+  db: PrismaClient
+}