Lokalise Multi Env Setup

Lokalise Multi-Environment Setup

Overview

Configure Lokalise across development, staging, and production environments with proper isolation.

Prerequisites

• Separate Lokalise projects or branches per environment
• Secret management solution (Vault, AWS Secrets Manager, etc.)
• CI/CD pipeline with environment variables
• Environment detection in application

Environment Strategy

Instructions

Step 1: Create Configuration Structure

config/
├── lokalise/
│   ├── base.json           # Shared config
│   ├── development.json    # Dev overrides
│   ├── staging.json        # Staging overrides
│   └── production.json     # Prod overrides

base.json

{
  "enableCompression": true,
  "cacheEnabled": true,
  "cacheTtlSeconds": 300,
  "syncOnBuild": true,
  "fallbackLocale": "en",
  "supportedLocales": ["en", "es", "fr", "de"]
}

development.json

{
  "projectId": "${LOKALISE_PROJECT_ID_DEV}",
  "branch": "development",
  "cacheEnabled": false,
  "syncOnBuild": false,
  "debug": true
}

staging.json

{
  "projectId": "${LOKALISE_PROJECT_ID}",
  "branch": "staging",
  "cacheEnabled": true,
  "cacheTtlSeconds": 60,
  "syncOnBuild": true
}

production.json

{
  "projectId": "${LOKALISE_PROJECT_ID}",
  "branch": null,
  "cacheEnabled": true,
  "cacheTtlSeconds": 3600,
  "syncOnBuild": true,
  "webhookSecret": "${LOKALISE_WEBHOOK_SECRET}"
}

Step 2: Environment Detection and Config Loading

// src/config/lokalise.ts
import baseConfig from "../../config/lokalise/base.json";

type Environment = "development" | "staging" | "production";

interface LokaliseConfig {
  projectId: string;
  branch: string | null;
  apiToken: string;
  enableCompression: boolean;
  cacheEnabled: boolean;
  cacheTtlSeconds: number;
  syncOnBuild: boolean;
  fallbackLocale: string;
  supportedLocales: string[];
  debug?: boolean;
  webhookSecret?: string;
}

function detectEnvironment(): Environment {
  const env = process.env.NODE_ENV || "development";
  if (["development", "staging", "production"].includes(env)) {
    return env as Environment;
  }
  return "development";
}

export function getLokaliseConfig(): LokaliseConfig {
  const env = detectEnvironment();
  const envConfig = require(`../../config/lokalise/${env}.json`);

  const config = {
    ...baseConfig,
    ...envConfig,
    apiToken: process.env.LOKALISE_API_TOKEN!,
  };

  // Resolve environment variable placeholders
  config.projectId = config.projectId.replace(
    /\${(\w+)}/g,
    (_, key) => process.env[key] || ""
  );

  if (config.webhookSecret) {
    config.webhookSecret = process.env.LOKALISE_WEBHOOK_SECRET;
  }

  return config;
}

// Get project ID with branch suffix
export function getProjectIdWithBranch(): string {
  const config = getLokaliseConfig();
  if (config.branch) {
    return `${config.projectId}:${config.branch}`;
  }
  return config.projectId;
}

Step 3: Environment-Specific Clients

// src/services/lokalise/client.ts
import { LokaliseApi } from "@lokalise/node-api";
import { getLokaliseConfig, getProjectIdWithBranch } from "../../config/lokalise";

let client: LokaliseApi | null = null;

export function getLokaliseClient(): LokaliseApi {
  if (!client) {
    const config = getLokaliseConfig();
    client = new LokaliseApi({
      apiKey: config.apiToken,
      enableCompression: config.enableCompression,
    });
  }
  return client;
}

export function getProjectId(): string {
  return getProjectIdWithBranch();
}

// For debugging - log current environment
export function logEnvironmentInfo(): void {
  const config = getLokaliseConfig();
  console.log({
    environment: process.env.NODE_ENV,
    projectId: config.projectId,
    branch: config.branch,
    cacheEnabled: config.cacheEnabled,
    debug: config.debug,
  });
}

Step 4: Secret Management by Environment

Local Development

# .env.local (git-ignored)
LOKALISE_API_TOKEN=dev_token_here
LOKALISE_PROJECT_ID=123456789.abcdef
LOKALISE_PROJECT_ID_DEV=987654321.fedcba

CI/CD (GitHub Actions)

jobs:
  deploy:
    environment: ${{ github.ref == 'refs/heads/main' && 'production' || 'staging' }}
    env:
      LOKALISE_API_TOKEN: ${{ secrets.LOKALISE_API_TOKEN }}
      LOKALISE_PROJECT_ID: ${{ secrets.LOKALISE_PROJECT_ID }}

Production (Secret Manager)

# AWS Secrets Manager
aws secretsmanager get-secret-value \
  --secret-id lokalise/production \
  --query SecretString --output text

# GCP Secret Manager
gcloud secrets versions access latest --secret=lokalise-api-token

# HashiCorp Vault
vault kv get -field=api_token secret/lokalise/production

Step 5: Environment Isolation Guards

// Prevent dangerous operations in wrong environment
function guardProductionOperation(operation: string): void {
  const config = getLokaliseConfig();
  const env = process.env.NODE_ENV;

  if (env !== "production" && config.projectId.includes("prod")) {
    throw new Error(
      `SAFETY: ${operation} targeting production project from ${env} environment`
    );
  }
}

// Example usage
async function deleteAllKeys(projectId: string) {
  guardProductionOperation("deleteAllKeys");
  // ... dangerous operation
}

// Prevent accidental production writes from dev
function isProductionSafe(): boolean {
  const env = process.env.NODE_ENV;
  return env === "production" || process.env.ALLOW_PROD_WRITE === "true";
}

Output

• Multi-environment config structure
• Environment detection logic
• Secure secret management
• Production safeguards enabled

Error Handling

Examples

Branch-Based Environment Workflow

// Use Lokalise branches instead of separate projects
const envToBranch: Record<string, string | null> = {
  development: "dev",
  staging: "staging",
  production: null,  // Main branch
};

function getProjectIdForEnv(env: string): string {
  const projectId = process.env.LOKALISE_PROJECT_ID!;
  const branch = envToBranch[env];
  return branch ? `${projectId}:${branch}` : projectId;
}

CI Pipeline with Environment Matrix

# .github/workflows/sync-translations.yml
jobs:
  sync:
    strategy:
      matrix:
        environment: [staging, production]
    environment: ${{ matrix.environment }}
    steps:
      - name: Sync translations
        env:
          LOKALISE_API_TOKEN: ${{ secrets.LOKALISE_API_TOKEN }}
          NODE_ENV: ${{ matrix.environment }}
        run: npm run i18n:pull

Quick Environment Check

const config = getLokaliseConfig();
console.log(`
Environment: ${process.env.NODE_ENV}
Project ID: ${config.projectId}
Branch: ${config.branch || 'main'}
Cache: ${config.cacheEnabled ? `enabled (${config.cacheTtlSeconds}s)` : 'disabled'}
`);

Resources

• Lokalise Branching
• 12-Factor App Config
• AWS Secrets Manager

Next Steps

For observability setup, see lokalise-observability.