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GraphQL Cheat Sheet

Quick reference guide with copy-paste ready code snippets

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Getting Started

3 snippets

GraphQL basics

Simple Query

query {
  user {
    name
    email
  }
}

Query with Arguments

query {
  user(id: "123") {
    name
    email
  }
}

Comments

# Single line comment

query {
  # This gets the user
  user {
    name
  }
}

Queries

5 snippets

Fetching data

Named Query

query GetUser {
  user(id: "123") {
    name
    email
  }
}

Query Variables

query GetUser($id: ID!) {
  user(id: $id) {
    name
    email
  }
}

# Variables
{
  "id": "123"
}

Multiple Fields

query {
  user {
    id
    name
    email
    createdAt
  }
}

Nested Fields

query {
  user {
    name
    posts {
      title
      content
      comments {
        text
      }
    }
  }
}

Multiple Queries

query {
  user(id: "123") {
    name
  }
  posts(limit: 10) {
    title
  }
}

Mutations

4 snippets

Modifying data

Simple Mutation

mutation {
  createUser(name: "Alice", email: "alice@example.com") {
    id
    name
  }
}

Mutation with Variables

mutation CreateUser($name: String!, $email: String!) {
  createUser(name: $name, email: $email) {
    id
    name
    email
  }
}

# Variables
{
  "name": "Alice",
  "email": "alice@example.com"
}

Update Mutation

mutation {
  updateUser(id: "123", name: "Bob") {
    id
    name
    updatedAt
  }
}

Delete Mutation

mutation {
  deleteUser(id: "123") {
    success
    message
  }
}

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Fragments

4 snippets

Reusable selections

Define Fragment

fragment UserFields on User {
  id
  name
  email
}

Use Fragment

query {
  user(id: "123") {
    ...UserFields
  }
}

fragment UserFields on User {
  id
  name
  email
}

Multiple Fragments

query {
  user {
    ...UserFields
    posts {
      ...PostFields
    }
  }
}

fragment UserFields on User {
  id
  name
}

fragment PostFields on Post {
  title
  content
}

Inline Fragments

query {
  search(text: "foo") {
    ... on User {
      name
    }
    ... on Post {
      title
    }
  }
}

Directives

3 snippets

Conditional execution

@include

query GetUser($withEmail: Boolean!) {
  user {
    name
    email @include(if: $withEmail)
  }
}

@skip

query GetUser($skipEmail: Boolean!) {
  user {
    name
    email @skip(if: $skipEmail)
  }
}

Combined Directives

query {
  user {
    name
    email @include(if: $includeEmail)
    phone @skip(if: $skipPhone)
  }
}

Aliases & Pagination

3 snippets

Field renaming and lists

Field Aliases

query {
  currentUser: user(id: "123") {
    name
  }
  otherUser: user(id: "456") {
    name
  }
}

Pagination

query {
  posts(first: 10, after: "cursor") {
    edges {
      node {
        title
      }
      cursor
    }
    pageInfo {
      hasNextPage
      endCursor
    }
  }
}

Offset Pagination

query {
  posts(limit: 10, offset: 20) {
    id
    title
  }
}

Schema Definition

6 snippets

Types and schemas

Object Type

type User {
  id: ID!
  name: String!
  email: String!
  age: Int
}

Query Type

type Query {
  user(id: ID!): User
  users(limit: Int): [User!]!
}

Mutation Type

type Mutation {
  createUser(name: String!, email: String!): User!
  updateUser(id: ID!, name: String): User
  deleteUser(id: ID!): Boolean!
}

Input Type

input UserInput {
  name: String!
  email: String!
  age: Int
}

type Mutation {
  createUser(input: UserInput!): User!
}

Enum Type

enum Role {
  ADMIN
  USER
  GUEST
}

type User {
  id: ID!
  role: Role!
}

Interface

interface Node {
  id: ID!
}

type User implements Node {
  id: ID!
  name: String!
}

Subscriptions

2 snippets

Real-time updates

Simple Subscription

subscription {
  messageAdded {
    id
    text
    createdAt
  }
}

Subscription with Filter

subscription OnCommentAdded($postId: ID!) {
  commentAdded(postId: $postId) {
    id
    text
    author {
      name
    }
  }
}

More Cheat Sheets

FAQ

Frequently asked questions

What is a GraphQL cheat sheet?

A GraphQL cheat sheet is a quick reference guide containing the most commonly used syntax, functions, and patterns in GraphQL. It helps developers quickly look up syntax without searching through documentation.

How do I learn GraphQL quickly?

Start with the basics: variables, control flow, and functions. Use this cheat sheet as a reference while practicing. For faster learning, try DocuWriter.ai to automatically explain code and generate documentation as you learn.

What are the most important GraphQL concepts?

Key GraphQL concepts include variables and data types, control flow (if/else, loops), functions, error handling, and working with data structures like arrays and objects/dictionaries.

How can I document my GraphQL code?

Use inline comments for complex logic, docstrings for functions and classes, and README files for projects. DocuWriter.ai can automatically generate professional documentation from your GraphQL code using AI.

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