Grammarly Multi-Environment Setup

Grammarly Multi-Environment Setup

Overview

Grammarly integration requires environment separation to isolate API credentials, enforce team-scoped style guides, and manage rate limits per tier. Development uses mock API responses for fast iteration without consuming quota, staging connects to the Grammarly sandbox for real grammar checks with test content, and production runs against the live API with full team configurations. Each environment has its own client credentials and style guide settings to prevent dev experiments from affecting production writing standards.

Environment Configuration

const grammarlyConfig = (env: string) => ({
  development: {
    clientId: process.env.GRAMMARLY_DEV_CLIENT_ID!, clientSecret: process.env.GRAMMARLY_DEV_CLIENT_SECRET!,
    baseUrl: "http://localhost:3100/mock-grammarly", useMockApi: true, concurrency: 1, intervalCap: 2,
  },
  staging: {
    clientId: process.env.GRAMMARLY_STG_CLIENT_ID!, clientSecret: process.env.GRAMMARLY_STG_CLIENT_SECRET!,
    baseUrl: "https://api.grammarly.com/sandbox", useMockApi: false, concurrency: 2, intervalCap: 5,
  },
  production: {
    clientId: process.env.GRAMMARLY_PROD_CLIENT_ID!, clientSecret: process.env.GRAMMARLY_PROD_CLIENT_SECRET!,
    baseUrl: "https://api.grammarly.com", teamId: process.env.GRAMMARLY_TEAM_ID!, concurrency: 5, intervalCap: 10,
  },
}[env]);

Environment Files

# Per-env files: .env.development, .env.staging, .env.production
GRAMMARLY_{DEV|STG|PROD}_CLIENT_ID=<client-id>
GRAMMARLY_{DEV|STG|PROD}_CLIENT_SECRET=<secret>
GRAMMARLY_BASE_URL={http://localhost:3100/mock|https://api.grammarly.com/sandbox|https://api.grammarly.com}
GRAMMARLY_TEAM_ID=<team-id>          # staging + production only

Environment Validation

function validateGrammarlyEnv(env: string): void {
  const suffix = { development: "_DEV", staging: "_STG", production: "_PROD" }[env];