GraphQL App Recipes
This repo is an evolving work in progress. As I add more recipes, I will break these out into individual full-stack applications including the front end and adding additional examples. If you have any ideas, please feel free to either contribute or submit an issue!
This repo goes along with the tutorial on building AWS AppSync APIs using the Amplify GraphQL Transform library.
To learn more about GraphQL Transform library, check out the documentation.
To learn more about building full stack serverless applications with GraphQL and AWS Amplify, check out my post Infrastructure as Code in the Era of GraphQL and Full Stack Serverless.
- Todo App
- Events App
- Chat App
- Multi-user Chat App
- E Commerce App
- WhatsApp Clone
- Reddit Clone
- Conference App
- Instagram Clone
- Giphy Clone
Some applications may require additional custom authorization logic for certain subscriptions that you may not want accessible to all users. To learn more, check out the documentation here.
Todo App
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add the GraphQL API
amplify add api
Use the following schema
type Todo @model {
id: ID!
name: String!
description: String
}
- Deploy the resources
amplify push
Event App
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add authentication
amplify add auth
- Add the GraphQL API
amplify add api
Use the following schema
type Event @model
@key(name: "itemType", fields: ["itemType", "time"], queryField: "eventsByDate")
@auth(rules: [
{ allow: groups, groups: ["Admin"] },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
]) {
id: ID!
name: String!
description: String
time: String!
itemType: String!
comments: [Comment] @connection #optional comments field
}
# Optional Comment type
type Comment @model
@auth(rules: [
{ allow: owner, ownerField: "author" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
]) {
id: ID!
message: String!
author: String
}
- Deploy the resources
amplify push
Chat app
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add the GraphQL API
amplify add api
Use the following GraphQL Schema:
type Conversation @model {
id: ID!
name: String
messages: [Message] @connection(keyName: "messagesByConversationId", fields: ["id"])
createdAt: String
updatedAt: String
}
type Message
@key(name: "messagesByConversationId", fields: ["conversationId"])
@model(subscriptions: null, queries: null) {
id: ID!
conversationId: ID!
content: String!
conversation: Conversation @connection(fields: ["conversationId"])
createdAt: String
}
Multi-user Chat App
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add authentication
amplify add auth
- Add the GraphQL API
amplify add api
Use the following GraphQL Schema:
type User
@key(fields: ["userId"])
@model(subscriptions: null)
@auth(rules: [
{ allow: owner, ownerField: "userId" }
]) {
userId: ID!
conversations: [ConvoLink] @connection(keyName: "conversationsByUserId", fields: ["userId"])
messages: [Message] @connection(keyName: "messagesByUserId", fields: ["userId"])
createdAt: String
updatedAt: String
}
type Conversation
@model(subscriptions: null)
@auth(rules: [{ allow: owner, ownerField: "members" }]) {
id: ID!
messages: [Message] @connection(keyName: "messagesByConversationId", fields: ["id"])
associated: [ConvoLink] @connection(keyName: "convoLinksByConversationId", fields: ["id"])
members: [String!]!
createdAt: String
updatedAt: String
}
type Message
@key(name: "messagesByConversationId", fields: ["conversationId"])
@key(name: "messagesByUserId", fields: ["userId"])
@model(subscriptions: null, queries: null) {
id: ID!
userId: ID!
conversationId: ID!
author: User @connection(fields: ["userId"])
content: String!
conversation: Conversation @connection(fields: ["conversationId"])
createdAt: String
updatedAt: String
}
type ConvoLink
@key(name: "convoLinksByConversationId", fields: ["conversationId"])
@key(name: "conversationsByUserId", fields: ["userId"])
@model(
mutations: { create: "createConvoLink", update: "updateConvoLink" }
queries: null
subscriptions: null
) {
id: ID!
userId: ID!
conversationId: ID!
user: User @connection(fields: ["userId"])
conversation: Conversation @connection(fields: ["conversationId"])
createdAt: String
updatedAt: String
}
type Subscription {
onCreateConvoLink(userId: ID): ConvoLink
@aws_subscribe(mutations: ["createConvoLink"])
onCreateMessage(conversationId: ID): Message
@aws_subscribe(mutations: ["createMessage"])
}
- Deploy the resources
amplify push
E-commerce App
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add authentication
amplify add auth
- Add the GraphQL API
amplify add api
Use the following GraphQL schema:
# Products - Orders - Customers
type Customer @model(subscriptions: null)
@auth(rules: [
{ allow: owner },
{ allow: groups, groups: ["Admin"] }
]) {
id: ID!
name: String!
email: String!
address: String
orders: [Order] @connection(keyName: "byCustomerId", fields: ["id"])
}
type Product @model(subscriptions: null)
@auth(rules: [
{ allow: groups, groups: ["Admin"] },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
]) {
id: ID!
name: String!
description: String
price: Float!
image: String
}
type Order @model(subscriptions: null)
@key(name: "byCustomerId", fields: ["customerId", "createdAt"], queryField: "ordersByCustomerId")
@auth(rules: [
{ allow: owner },
{ allow: groups, groups: ["Admin"] }
]) {
id: ID!
customerId: ID!
total: Float
subtotal: Float
tax: Float
createdAt: String!
customer: Customer @connection(fields: ["customerId"])
lineItems: [LineItem] @connection(keyName: "byOrderId", fields: ["id"])
}
type LineItem @model(subscriptions: null)
@key(name: "byOrderId", fields: ["orderId"])
@auth(rules: [
{ allow: owner },
{ allow: groups, groups: ["Admin"] }
]) {
id: ID!
orderId: ID!
productId: ID!
qty: Int
order: Order @connection(fields: ["orderId"])
product: Product @connection(fields: ["productId"])
description: String
price: Float
total: Float
}
- Add Storage (S3)
amplify add storage
? Please select from one of the below mentioned services (Use arrow keys): Content (Images, audio, video, etc.)
? Please provide a friendly name for your resource that will be used to label this category in the project: imagestorage
? Please provide bucket name: <UNIQUE_BUCKET_NAME>
? Who should have access: Auth and Guest users
? What kind of access do you want for Authenticated users? create/update, read, delete
? What kind of access do you want for Guest users? read
- Deploy the resources
amplify push
Whatsapp Clone
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add authentication
amplify add auth
- Add the GraphQL API
amplify add api
Use the following GraphQL schema:
type User
@key(fields: ["userId"])
@model(subscriptions: null)
@auth(rules: [
{ allow: owner, ownerField: "userId" }
]) {
userId: ID!
avatar: String
conversations: [ConvoLink] @connection(keyName: "conversationsByUserId", fields: ["userId"])
messages: [Message] @connection(keyName: "messagesByUserId", fields: ["userId"])
createdAt: String
updatedAt: String
}
type Conversation
@model(subscriptions: null)
@auth(rules: [{ allow: owner, ownerField: "members" }]) {
id: ID!
messages: [Message] @connection(keyName: "messagesByConversationId", fields: ["id"])
associated: [ConvoLink] @connection(keyName: "convoLinksByConversationId", fields: ["id"])
members: [String!]!
createdAt: String
updatedAt: String
}
type Message
@key(name: "messagesByConversationId", fields: ["conversationId"])
@key(name: "messagesByUserId", fields: ["userId"])
@model(subscriptions: null, queries: null) {
id: ID!
userId: ID!
conversationId: ID!
author: User @connection(fields: ["userId"])
content: String!
image: String
conversation: Conversation @connection(fields: ["conversationId"])
createdAt: String
updatedAt: String
}
type ConvoLink
@key(name: "convoLinksByConversationId", fields: ["conversationId"])
@key(name: "conversationsByUserId", fields: ["userId"])
@model(
mutations: { create: "createConvoLink", update: "updateConvoLink" }
queries: null
subscriptions: null
) {
id: ID!
userId: ID!
conversationId: ID!
user: User @connection(fields: ["userId"])
conversation: Conversation @connection(fields: ["conversationId"])
createdAt: String
updatedAt: String
}
type Subscription {
onCreateConvoLink(userId: ID): ConvoLink
@aws_subscribe(mutations: ["createConvoLink"])
onCreateMessage(conversationId: ID): Message
@aws_subscribe(mutations: ["createMessage"])
}
- Add Storage (S3)
amplify add storage
? Please select from one of the below mentioned services (Use arrow keys): Content (Images, audio, video, etc.)
? Please provide a friendly name for your resource that will be used to label this category in the project: imagestorage
? Please provide bucket name: <UNIQUE_BUCKET_NAME>
? Who should have access: Auth and Guest users
? What kind of access do you want for Authenticated users? create/update, read, delete
? What kind of access do you want for Guest users? read
- Deploy the resources
amplify push
Reddit clone
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add authentication
amplify add auth
- Add the GraphQL API
amplify add api
Use the following GraphQL Schema:
type User @model(subscriptions: null)
@key(fields: ["userId"])
@auth(rules: [
{ allow: owner, ownerField: "userId" }
]) {
userId: ID!
posts: [Post] @connection(keyName: "postByUser", fields: ["userId"])
createdAt: String
updatedAt: String
}
type Post @model
@key(name: "postByUser", fields: ["authorId", "createdAt"])
@auth(rules: [
{ allow: owner, ownerField: "authorId" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
]) {
id: ID!
authorId: ID!
author: User @connection(fields: ["authorId"])
postContent: String
postImage: String
comments: [Comment] @connection(keyName: "commentsByPostId", fields: ["id"])
votes: [PostVote] @connection(keyName: "votesByPostId", fields: ["id"])
createdAt: String
voteCount: Int
}
type Comment @model
@key(name: "commentsByPostId", fields: ["postId"])
@auth(rules: [
{ allow: owner, ownerField: "authorId" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
]) {
id: ID!
authorId: ID!
postId: ID!
text: String!
author: User @connection(fields: ["authorId"])
votes: [CommentVote] @connection(keyName: "votesByCommentId", fields: ["id"])
post: Post @connection(fields: ["postId"])
voteCount: Int
}
type PostVote @model
@auth(rules: [
{ allow: owner, ownerField: "userId"},
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
])
@key(name: "votesByPostId", fields: ["postId"]) {
id: ID!
postId: ID!
userId: ID!
post: Post @connection(fields: ["postId"])
createdAt: String!
vote: VoteType
}
type CommentVote @model
@auth(rules: [
{ allow: owner, ownerField: "userId"},
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
])
@key(name: "votesByCommentId", fields: ["commentId"]) {
id: ID!
userId: ID!
commentId: ID!
comment: Comment @connection(fields: ["commentId"])
createdAt: String!
vote: VoteType
}
input VoteInput {
type: VoteType!
id: ID!
}
enum VoteType {
up
down
}
Custom resolver for votes
In the request mapping template,
# Set the vote ID as a combination of the postId and the user's userId.
#set($itemId = "$context.identity.username#$context.args.postId")
$util.qr($context.args.input.put("id", $util.defaultIfNull($ctx.args.input.id, $itemId)))
# delete or comment out the conditional expression code that does not allow the vote to be overridden:
#set( $condition = {
"expression": "attribute_not_exists(#id)",
"expressionNames": {
"#id": "id"
}
})
- Add Storage (S3)
amplify add storage
? Please select from one of the below mentioned services (Use arrow keys): Content (Images, audio, video, etc.)
? Please provide a friendly name for your resource that will be used to label this category in the project: imagestorage
? Please provide bucket name: <UNIQUE_BUCKET_NAME>
? Who should have access: Auth and Guest users
? What kind of access do you want for Authenticated users? create/update, read, delete
? What kind of access do you want for Guest users? read
- Deploy the resources
amplify push
Conference App
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add authentication
amplify add auth
- Add the GraphQL API
amplify add api
Use the following GraphQL Schema:
type Talk @model
@auth(rules: [
{ allow: groups, groups: ["Admin"] },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
]) {
id: ID!
name: String!
speakerName: String!
speakerBio: String!
time: String
timeStamp: String
date: String
location: String
summary: String!
twitter: String
github: String
speakerAvatar: String
comments: [Comment] @connection(keyName: "commentsByTalkId", fields: ["id"])
}
type Comment @model
@key(name: "commentsByTalkId", fields: ["talkId"])
@auth(rules: [
{ allow: owner, ownerField: "authorId" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
])
{
id: ID!
talkId: ID!
talk: Talk @connection(fields: ["talkId"])
message: String
createdAt: String
authorId: ID!
deviceId: ID
}
type Report @model
@auth(rules: [
{ allow: owner, operations: [create, update, delete] },
{ allow: groups, groups: ["Admin"] }
])
{
id: ID!
commentId: ID!
comment: String!
talkTitle: String!
deviceId: ID
}
type ModelCommentConnection {
items: [Comment]
nextToken: String
}
type Query {
listCommentsByTalkId(talkId: ID!): ModelCommentConnection
}
type Subscription {
onCreateCommentWithId(talkId: ID!): Comment
@aws_subscribe(mutations: ["createComment"])
}
- Deploy the resources
amplify push
Instagram Clone
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add authentication
amplify add auth
- Add the GraphQL API
amplify add api
Use the following GraphQL Schema:
type User @model(subscriptions: null)
@key(fields: ["userId"])
@auth(rules: [
{ allow: owner, ownerField: "userId" },
{ allow: private, operations: [read] }
]) {
userId: ID!
posts: [Post] @connection(keyName: "postsByUserId", fields: ["userId"])
createdAt: String
updatedAt: String
following: [Following] @connection(keyName: "followingByUserId", fields: ["userId"])
}
type Post @model
@key(name: "postsByUserId", fields: ["authorId"])
@auth(rules: [
{ allow: owner ownerField: "authorId" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
]) {
id: ID!
authorId: ID!
content: String!
postImage: String
author: User @connection(fields: ["authorId"])
comments: [Comment] @connection(keyName: "commentsByPostId", fields: ["id"])
likes: [PostLike] @connection(keyName: "postLikesByPostId", fields: ["id"])
}
type Comment @model
@key(name: "commentsByPostId", fields: ["postId"])
@auth(rules: [
{ allow: owner, ownerField: "authorId" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
]) {
id: ID!
postId: ID!
authorId: ID!
text: String!
likes: [CommentLike] @connection(keyName: "commentLikesByCommentId", fields: ["id"])
author: User @connection(fields: ["authorId"])
post: Post @connection(fields: ["postId"])
}
type PostLike @model
@auth(rules: [
{ allow: owner, ownerField: "userId" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
])
@key(name: "postLikesByPostId", fields: ["postId"])
@key(name: "postLikesByUser", fields: ["userId", "createdAt"], queryField: "likesByUser") {
id: ID!
postId: ID!
userId: ID!
user: User @connection(fields: ["userId"])
post: Post @connection(fields: ["postId"])
createdAt: String!
}
type CommentLike @model
@auth(rules: [
{ allow: owner, ownerField: "userId" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
])
@key(name: "commentLikesByCommentId", fields: ["commentId"])
@key(name: "commentLikesByUser", fields: ["userId", "createdAt"], queryField: "likesByUser") {
id: ID!
userId: ID!
postId: ID!
commentId: ID!
user: User @connection(fields: ["userId"])
post: Post @connection(fields: ["postId"])
createdAt: String!
}
type Following @model
@auth(rules: [
{ allow: owner, ownerField: "followerId" },
{ allow: public, operations: [read] },
{ allow: private, operations: [read] }
])
@key(name: "followingByUserId", fields: ["followerId"]) {
id: ID
followerId: ID!
followingId: ID!
follower: User @connection(fields: ["followerId"])
following: User @connection(fields: ["followingId"])
createdAt: String!
}
- Add Storage (S3)
amplify add storage
? Please select from one of the below mentioned services (Use arrow keys): Content (Images, audio, video, etc.)
? Please provide a friendly name for your resource that will be used to label this category in the project: imagestorage
? Please provide bucket name: <UNIQUE_BUCKET_NAME>
? Who should have access: Auth and Guest users
? What kind of access do you want for Authenticated users? create/update, read, delete
? What kind of access do you want for Guest users? read
- Deploy the resources
amplify push
To learn more about uploading images in a GraphQL application with Amplify and AppSync, check out my tutorial How to Manage Image & File Uploads & Downloads with AWS AppSync & AWS Amplify
Giphy Clone
To deploy this app, use the following steps:
- Create the Amplify project in your app
amplify init
- Add a lambda function
amplify add function
-
From the root of your project, change into your function's source directory
cd amplify/backend/function/giphyfunction/src
npm install axios && npm install -D dotenv
- Update the contents of your functions
index.js
file
const axios = require("axios");
const dotenv = require("dotenv");
dotenv.config();
exports.handler = (event, _, callback) => {
const { GIPHY_API_KEY } = process.env;
let apiUrl = `https://api.giphy.com/v1/gifs/search?api_key=${GIPHY_API_KEY}&q=hello`;
if (event.arguments) {
const { searchTerm = "hi", limit = 25 } = event.arguments;
apiUrl = `https://api.giphy.com/v1/gifs/search?api_key=${GIPHY_API_KEY}&q=${searchTerm}&limit=${limit}`;
}
axios
.get(apiUrl)
.then(response => callback(null, response.data.data))
.catch(err => callback(err));
};
-
Login to Giphy's Developer portal and create an app to get an API Key.
-
Back in the function's
src
directory, create a.env
file and add in the API Key that was obtained in the previous step as a secret.
GIPHY_API_KEY=<YOUR_API_KEY>
Your .env file should NOT be committed to Github
- Head back to the root of your project
cd ../../../../../
- Add the GraphQL API
amplify add api
Use the following GraphQL Schema:
type Gif {
id: ID!
slug: String!
images: GifImage!
}
type GifImage {
original: GifAttributes!
fixed_width: GifAttributes!
}
type GifAttributes {
url: String!
width: String!
height: String!
}
type Query {
getGifs(searchTerm: String, limit: Int): [Gif]
@function(name: "giphyfunction-${env}")
}
- Deploy the Resources
amplify push