@escape.tech/graphql-armor

GraphQL Armor 🛡️

GraphQL Armor is a Dead-simple, yet highly customizable security middleware for Apollo GraphQL servers.

Contents

• GraphQL Armor 🛡️
  • Contents
  • Supported remediations
  • Installation
  • Getting Started
  • Getting Started with Configuration
  • Per plugin remediation
    • Character Limit
    • Cost Analysis
    • Field Suggestion

Supported remediations

• Character Limit
• Limit Query Cost
• Disable Field Suggestion

Installation

# npm
npm install @escape.tech/graphql-armor

# yarn
yarn add @escape.tech/graphql-armor

Getting Started

import { ApolloArmor } from '@escape.tech/graphql-armor';
const armor = new ApolloArmor({
    // Config opts
});

const server = new ApolloServer({
  typeDefs,
  resolvers,
  plugins: [...armor.getPlugins(), ...yourPlugins],
  validationRules: [...armor.getValidationRules(), ...yourValidationRules],
});

Getting Started with Configuration

GraphQL-Armor is fully configurable, scoped per plugin.

View the Per plugin remediation section for more information.

import { ApolloArmor } from '@escape.tech/graphql-armor';

const armor = new ApolloArmor({
    CostAnalysis: {
        enabled: true,
        options: {
            maxCost: 1000,
        },
    }
});

const server = new ApolloServer({
  typeDefs,
  resolvers,
  plugins: [...armor.getPlugins(), ...yourPlugins],
  validationRules: [...armor.getValidationRules(), ...yourValidationRules],
});

Per plugin remediation

This section describes how to configure each plugin individually.

Character Limit

Character Limit plugin will enforce a character limit on your GraphQL queries.

(Note: The limit is not applied to whole HTTP body -, multipart form data / file upload will still works)

import { ApolloArmor } from '@escape.tech/graphql-armor';

const armor = new ApolloArmor({
    CharacterLimit: {
        enabled: true,
        options: {
            maxLength: 15000, // Default: 15000
        },
    }
});

Cost Analysis

Cost Analysis plugin analyze incoming GraphQL queries and apply cost analysis algorithm to prevent resource overload.

import { ApolloArmor } from '@escape.tech/graphql-armor';

const armor = new ApolloArmor({
    CostAnalysis: {
        enabled: true,
        options: {
            maxCost: 5000,          // Default: 5000
            defaultComplexity: 1,   // Default: 1    | Complexity of GQL token
            maxDepth: 6,            // Default: 6
            maxAlias: 15,           // Default: 15
            maxDirectives: 50,      // Default: 50
        },
    }
});

Field Suggestion

Field Suggestion plugin will prevent suggesting fields of unprecise GraphQL queries.

import { ApolloArmor } from '@escape.tech/graphql-armor';

const armor = new ApolloArmor({
    FieldSuggestion: {
        enabled: true,
    }
});