Prisma ~ Yoga ~ Heroku ~ Docker ~ Now ~ Setup & Deploy

Your prisma and yoga are two seperate entities

**Prisma **is a connection to a database that allows you to access the db with graphl framework, it also allows you access to the graphQL playground

**Yoga **is theJS interface that connects prisma with your frontend and allows queris mutations and logic

In Production

BOTH need their own server

BOTH need schemas

Servers

For prisma and the db we will use Heroku though we could use

mongoDB(problems uploading the right schema)
MySql(you need a dedicated IP, on GGs that is $40/year)
the prisma Cloud - not for prod)

Flow

Initialise Prisma and create a local DB with docker to use offline

Import Yoga and set that up to use the localDB

Set up our frontend and check we can connect

Set up a DB in Heroku

Create a new instance of Prisma init for production and use this new heroku db

Set scripts to use both dev or prod when we see fit

Upload Yoga to now

Now we wil have a Local development setup and a live production setup

Using Prisma —version 1.34

👇 👇Set up the mysql local db with docker 👇 👇

https://www.prisma.io/docs/get-started/01-setting-up-prisma-new-database-JAVASCRIPT-a002/

you may get an error that the port is already taken, at the moment i’m deleting the other containers

$ docker container ls

To view what ports are being used

CONTAINER ID        IMAGE                       COMMAND                  CREATED             STATUS              PORTS                    NAMES
63de77bce294        prismagraphql/prisma:1.34   "/bin/sh -c /app/sta…"   57 seconds ago      Up 56 seconds       0.0.0.0:4467->4467/tcp   ac404-backend_prisma_1
88826b630e35        prismagraphql/prisma:1.34   "/bin/sh -c /app/sta…"   9 days ago          Up About an hour    0.0.0.0:4466->4466/tcp   prismayogaherokunow_prisma_1

UPDATE /docker-compose.yml

You can change these ports to find one that is free

 ports:
      - '4467:4467'
    environment:
      PRISMA_CONFIG: |
        port: 4467

DON’T CHANGE THIS PORT it stays at 3306

 default:
  connector: mysql
  host: mysql
  port: 3306

Or you can…. delete all the ports you are using

https://docs.docker.com/engine/reference/commandline/container_ls/

$ docker container ls

$ docker container kill <cont ID>

when we get to

$ prisma init --endpoint http://localhost:4466

it generates two files prisma.yml and and datamodel.prisma , the minimal needed to run prisma

$ prisma deploy:

☠️ ! You already have nodes for this model. This change may result in data loss.

You are overriding a db go back and check the ports in /docker-compose.yml

☝️ if prisma deploy runs then that’s it prisma is setup locally and running on

http://localhost:4466. And http://localhost:4466/_admin

Use http://localhost:4466/_admin to add some users and query them 👇

query users {
  users{
    name
  }
}

Now lets set up the production version, an online DB with Heroku

https://app.prisma.io/your-account-name/servers. —> ADD SERVER

First Create the DB

—> create server —> create new db —> heroku —> update option —> create database

Now you have a DB and you need a server for that

—> set up server —> heroku —> create server

$ prisma deploy -n

And pick the new DB you created

This will auto change your prisma.yml and comment out the local host

#endpoint: http://localhost:4466
endpoint: https://prs-yog-her-now-f085b7bce8.herokuapp.com/PrismaYogaHerokuNow/prod
datamodel: datamodel.prisma

You could switch betwen the two by un-commenting out the one we want to use but instead...

Lets create some ENV vars and run a script for dev or prod

We will need a secret for prod so lets add that to both

create /.env (for dev)

PRISMA_ENDPOINT=http://localhost:4466
PRISMA_SECRET=myPrismaSecret9876543210

create /env.prod (for prod)

PRISMA_ENDPOINT=https://prs-yog-her-now-f085b7bce8.herokuapp.com/PrismaYogaHerokuNow/prod
PRISMA_SECRET=myPrismaSecret9876543210

update /prisma.yml

endpoint: ${env:PRISMA_ENDPOINT}
secret: ${env:PRISMA_SECRET}
datamodel: datamodel.prisma

Now use node to set some scripts

npm init -y

Update /package.json

"scripts": {
    "deploy-dev": "prisma deploy --env-file .env",
    "deploy-prod": "prisma deploy --env-file .env.prod",
    "token-dev": "prisma token --env-file .env",
    "token-prod": "prisma token --env-file .env.prod"
  },

Now update the data model.prisma to test if when we deploy it updates

type User {
  id: ID! @id
  name: String!
  shoeSize: String!
}

and deploy it using the scripts

$ npm run deploy-dev

your going top get an error

Warnings:
  User
    ! You are creating a required field but there are already nodes present

You can either force it or delete everything in you db. Deleting everythin might be the better option

☠️ 💀 🔥☠️ 💀 🔥☠️ 💀 🔥☠️ 💀 🔥☠️ 💀 🔥☠️ 💀 🔥☠️ 💀 🔥☠️ 💀 🔥☠️ 💀 🔥

You may get an error in the playgournd about a token being out of date

https://www.prisma.io/forum/t/cannot-open-playground-your-token-is-invalid/2194/4

This is the answer👇

https://www.prisma.io/docs/reference/prisma-api/concepts-utee3eiquo#api-token

you create a token in the CLI $ prisma token

🔥EDIT still had problems with the dev and prod versions working

so I cahnaged the secret in env.prod

PRISMA_SECRET=myPrismaSecretForProd

Then useed the new scripts depending on which version i wanted a token for

"token-dev": "prisma token --env-file .env",
"token-prod": "prisma token --env-file .env.prod"

And it seems to work this way

then you manually add it in the http://localhost:4466/_admin. Clik the settings cog

OK SO FAR WE HAVE….

A dev prisma db and server set up locally with docker

A prod prisma db and server set up online with heroku

Prod/Dev env files we can use with a node script to determine wich branch we use

Fixed the TOKEN error in http://db/\_admin

A couple of things to update to get ready for yoga Update / prisma.yml

endpoint: ${env:PRISMA_ENDPOINT}
secret: ${env:PRISMA_SECRET}
datamodel: datamodel.prisma

hooks:
  post-deploy:
      - graphql get-schema -p prisma

Create /.graphqlconfig.yml

projects:
  app:
    schemaPath: "src/schema.graphql"
    extensions:
      endpoints:
        default: "http://localhost:4000"
  prisma:
    schemaPath: "src/generated/prisma.graphql"
    extensions:
      prisma: prisma.yml

Now deploy… this 👆 is going to generate src/generated/prisma.graphql which we need for yoga

$ npm run deploy-dev
$ npm run deploy-prod

THAT IS ALL FOR PRISMA

NOW YOGA 🧘…

some imports

npm i dotenv graphql graphql-cli graphql-yoga nodemon prisma prisma-binding

create file —> src/db.js

Connect directly to Prisma DB with prisma-binding

Allows us to use all the tools in the prisma playground in JS

Typedefs = using the generated API typedef, (this is why we use the hook in .graphqlconfig to pull it done into our project)

// This file connects to the remote prisma DB and gives us the ability to query it with JS
const { Prisma } = require('prisma-binding');

// THIS ISN'T IN WESBOS - but you will need it to find the endpoint env
require('dotenv').config();

const db = new Prisma({
  //where are your types/schema
  typeDefs: 'src/generated/prisma.graphql',
  //typeDefs: __dirname + "/schema_prep.graphql",
  // where does the db live
  endpoint: process.env.PRISMA_ENDPOINT,
  secret: process.env.PRISMA_SECRET,
  debug: false,
});

module.exports = db;

create file —> src/createServer.js

const { GraphQLServer } = require("graphql-yoga");

// import the resolvers
const Mutation = require("./resolvers/Mutations");
const Query = require("./resolvers/Queries");

// grab the db
const db = require("./db");
// Create the GraphQL Yoga Server
function createServer() {
  // console.log('createServer() running 🏃‍♂️');
  return new GraphQLServer({
    // ANOTHE SCHEMA 😱 see notes below
    typeDefs: 'src/schema.graphql',
    // typeDefs: __dirname + "/schema.graphql",
    // the above schema will then be matched with an object with the resolvers in
    resolvers: {
      Mutation,
      Query
    },
    // stops some error
    resolverValidationOptions: {
      requireResolversForResolveType: false
    },
    // access the db from the resolvers through 'context'
    context: req => ({ ...req, db })
  });
}

module.exports = createServer;

create file —> src/schema.graphql (public facing) OUR API SCHEMA

a schema of mutations/queries that we want to use

# import * from './generated/prisma.graphql'
type Mutation {
  createUser(name: String): User!
}

type Query {
  users: [User]!
}

SO FAR….

1. we have created our db

2. We have created the server(Prisma) to connect to the db

3. Created example user schema, a schema of mutations/queries that we want to us

create file —> src/index.js

To kick things off

Yoga help https://github.com/prisma/graphql-yoga#startoptions-options-callback-options-options--void----null-promisevoid

What is deets? https://wesbos.slack.com/threads/convo/C9G96G2UB-1552727085.422700/

//make sure our variables are avaiolable
require('dotenv').config();

//the fn we just created
const createServer = require('./createServer');

//grab the db instance
const db = require('./db');

//run the server fn
const server = createServer();

//using cors here to protect our endpoints
server.start(
  {
    cors: {
      credentials: true,
      origin: process.env.FRONTEND_URL
    },
  },
  // a fn that runs when the server spins
  deets => {
    console.log(`Server is now running on port http://localhost:${deets.port}`);
  }
);

You must create these basic resovers or it won’t run

create —> src/resolvers/Mutations.js

const Mutations = {
  async createUser(parent, args, ctx, info) {

    const user = await ctx.db.mutation.createUser(
      {
        data: {
          ...args,
        },
      },
      info
    );

    console.log("mutation 🏃‍ args", args);
    return user;
  },
};

module.exports = Mutations;

Create —> src/resolvers/Queries.js

const { forwardTo } = require('prisma-binding');
const Query = {
  users: forwardTo('db'),
};
module.exports = Query;

AH HA NEARLY THERE

Update /package.json - scripts

 "scripts": {
    "start": "nodemon -e js,graphql -x node src/index.js",
    "dev": "nodemon -e js,graphql -x node --inspect src/index.js",
    "deploy-dev": "prisma deploy --env-file .env",
    "deploy-prod": "prisma deploy --env-file .env.prod"
  },

$npm run dev

now the yoga wrpapper should be running on localhost:4000

the default port is 4000 if you want to change this add a Port variable to the .env file

PORT=4444

query allUsers {
  users{
    name
  }
}

PHEW… 😰. What do we have...

a local dev version of yoga running

db.js. with prisma bindings we connect to the db

createServer.js. we create a server use the db connection and our resolvbers to talk to each other

Schema.graphl We create a schema or queries/mutations that our front end can use

index.js - use this to run things in node

OK NOW THE LETS PUT YOGA ON ZEIT

We have to re-write the src/generated/prisma.graphql or it wont work on now

In your backend project you have essentially created two apps. one is the prisma server the other is the yoga wrapper

We can use now to deploy our yoga wrapper BUT we have to update the schema so its TS is correct

This is new and from slack Theo Merriamum

https://wesbos.slack.com/threads/convo/C9G96G2UB-1550829164.025300/

"You should not mix graphql imports and js/ts imports. The syntax on the graphql file will be interpreted by graphql-import and will be ignored by ncc (the compiler which reads the __dirname stuff and move the file to the correct directory etc)

In my example 'schema_prep.graphql' is already preprocessed with the imports from the generated graphql file."

**Create —> ** src/writeSchema.js:

write the function writeSchema, it copies the schema generated by prism, and places it in the file schema_prep.graphql

const fs = require('fs');
const { importSchema } = require('graphql-import');
const text = importSchema("src/generated/prisma.graphql");
fs.writeFileSync("src/schema_prep.graphql", text)

Add a script for writeSchema fn and also add it to the deploy scripts

Update —> package.json

add "&& npm run writeSchema” to the deploy scripts

add ""writeSchema": "node src/writeSchema.js””

"scripts": {
    "start": "nodemon -e js,graphql -x node src/index.js",
    "dev": "nodemon -e js,graphql -x node --inspect src/index.js",
    "deploy-dev": "prisma deploy --env-file .env && npm run write-schema",
    "deploy-prod": "prisma deploy --env-file .env.prod && npm run write-schema",
    "write-schema": "node src/writeSchema.js",
  },

Now run a script to create the new schema

$ npm run write-schema

make sure it ran properly you should have a new file schema_prep.graphql

🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 ☠️💀💣🗡️ DO THIS OR EVETHING IS F**ked🗡️💣☠️💀 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥 🔥

UPDATE —> schema.graphql

**CHANGE **

# import * from './generated/prisma.graphql’

TO THIS

# import * from './schema_prep.graphql'

# import * from './schema_prep.graphql'
type Mutation {
  createUser(name: String): User!
}

type Query {
  users: [User]!
}

Update —> src/db.js

With the new schema update the places we use it

const db = new Prisma({
    typeDefs: __dirname + "/schema_prep.graphql",
    ...
});

Update —> src/createServer.js

return new GraphQLServer({
        typeDefs: __dirname + '/schema.graphql',
        ...
    });

Okay that the schema taken care off, some other stuff you need

Create /.nowignore

node_modules
.vscode
.env
.env.prod
z_notepad.txt

Create —> now.json

{
    "version": 2,
    //update this name👇 and delete this comment
    "name": "my-app-name-yoga",
    "builds": [
        { "src": "src/index.js", "use": "@now/node-server" }
    ],
    "routes": [
        { "src": "/.*", "dest": "src/index.js" }
    ],
     "env": {
        //👇 change _app_name_ to the name of your app 👇
        "PRISMA_ENDPOINT":"@app_name_prisma_endpoint",
        "PRISMA_SECRET":"@app_name_prisma_secret",
        // 👇 You dont know this yet as we havent set up the frontend so add it anyway add app_name_frontend_url TBD
        "FRONTEND_URL":"@app_name_frontend_url",
    }
}

Add the secrest to now MAKE SURE THEY ARE FROM .env.prod

GIVE THEM A UNIQUR HANDLE as they gloabbly sit in your now account. so “fonrtend_url” is noooo good

$ now secret add myAppName_frontend_url https://myCoolDomainName

Deploy to now

$ now

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