Here's what I read:

I looked up prisma's latest docker hub tags at <https://hub.docker.com/r/prismagraphql/prisma/tags/> and picked 1.14-heroku (not sure what the difference is in *-heroku tags, but it sounded reasonable. Could someone from Prisma explain the difference?)
I read Heroku's docs on docker deployment and followed this section: <https://devcenter.heroku.com/articles/container-registry-and-runtime#pushing-an-existing-image>.
Here's the exact steps I ran:

Pulled the docker image w/ the tag mentioned above: docker pull prismagraphql/prisma:1.14-heroku
Looked up the image id from the image I just pulled using: docker images
Using that image id, I tagged it to my Heroku repo: docker tag b94e6d0d0939 <http://registry.heroku.com/${HEROKU_APP_NAME}/web|registry.heroku.com/${HEROKU_APP_NAME}/web>
Pushed the image to my heroku repo: docker push <http://registry.heroku.com/${HEROKU_APP_NAME}/web|registry.heroku.com/${HEROKU_APP_NAME}/web>
Finally, release this image to Heroku: heroku container:release web --app=${HEROKU_APP_NAME}
I did a bit of manual testing after the release and it seems OK, but I would caution other people from following this as I winged it :)

[nodemon] 1.17.1
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `ts-node index.ts`
Error: "0" defined in resolvers, but not in schema
[nodemon] app crashed - waiting for file changes before starting...

DateTime

datamodel

updatedAt

lastSyncedAt

lastSyncedAt

updatedAt

// To sync with algolia, get products which are newly created or updated in DB only
const getProductIDsToSync = async (): Promise<string[]> => {
  // DB call
  /**
   * [Execute raw SQL query from Prisma to compare columns from same row](<https://github.com/prisma/prisma/issues/3300#issuecomment-440801291>)
   * Format: `SELECT * FROM "app-name$app-stage"."Table"`
   */
  const query = `
  SELECT id FROM "my-service$dev"."Product" WHERE algoliaSyncAt IS NULL OR updatedAt > algoliaSyncAt
`
    .replace(/"/g, '\\"')
    .replace(/\n/g, " ")
    .replace(/\s+/g, " ");
  // [Prisma graphql requests](<https://www.prisma.io/docs/prisma-client/basic-data-access/reading-data-TYPESCRIPT-rsc3/#graphql-requests>)
  const response = await Prisma.$graphql(`
  mutation {
    executeRaw(query: "${query}")
  }
`);
  const productIDs: string[] = response.executeRaw.map(res => res.id);
  return productIDs;
};

orderBy

postedBy

@relation(link: INLINE)

postedBy

@relation(link: INLINE)

votes

@relation(link: INLINE)

links

@relation(link: INLINE)

votes

@relation(link: INLINE)

link

@relation(link: INLINE)

user

@relation(link: INLINE)

const getPackage = async (parent, args, context) => {
  const package = await context.prisma.package({ date: args.date });
  // If package exist return it, else, create new package
  if (package) {
    return package;
  } else {
    let pack = await context.prisma.createPackage({
      date: args.date,
      // Request Advice(error here - returns undefined/null)
      advice: getAdvice(),
      // Request Picture(pending - will use a third party API)
      picture: `pic_${args.date}.jpg`,
      // defaults empty array
      comments: { set: [] }
    });
    return pack;
  }
};

getAdvice()

const getAdvice = () => {
  // Get advice
  axios
    .get('<https://api.adviceslip.com/advice>')
    .then(res => {
      return res.data.slip.advice;
    })
    .catch(err => {
      console.log(err);
      return null;
    });
};

module.exports = {
  getAdvice
};

{
  "data": null,
  "errors": [
    {
      "message": "Variable '$data' expected value of type 'PackageCreateInput!' but got: {\"date\":\"2019-4-24\",\"picture\":\"pic_2019-4-24.jpg\",\"comments\":{\"set\":[]}}. Reason: 'advice' Expected non-null value, found null. (line 1, column 11):\nmutation ($data: PackageCreateInput!) {\n          ^",
      "locations": [
        {
          "line": 2,
          "column": 3
        }
      ],
      "path": [
        "getPackage"
      ]
    }
  ]
}

type Business {
    id: ID! @id
    stores: [Store]
}

type Store {
    id: ID! @id
    name: String!
    business: Business!
}

Business

Store

Business

updateBusiness(
    data: {
        stores: {
            create: {
                name: 'My store'
            }
        }
    },
    where: {
        id: 'some_business_id'
    }
) {
    id
    stores {
        name
        business {
            id
        }
    }
}

Person

Person

Business

Store

Business

updateBusiness

Person

Person

ID!

UUID!

Int!

type Artist {
  id: ID! @id @unique # Generated by Prisma
  artist_id: String! @unique # From Spotify
  uri: String @unique
  href: String @unique
  genres: [Genre]! @relation(name: "ArtistToGenre")
  ...
}

String