Miro install auth

Miro Install & Auth

Overview

Set up the official @mirohq/miro-api Node.js client and configure OAuth 2.0 authentication against the Miro REST API v2 (https://api.miro.com/v2/).

Prerequisites

• Node.js 18+
• A Miro account (Free, Business, or Enterprise)
• A Miro app created at https://developers.miro.com (Your apps > Create new app)
• Client ID, Client Secret, and OAuth redirect URI from the app settings

Instructions

Step 1: Install the Official SDK

# Official Miro Node.js client
npm install @mirohq/miro-api

# For Express-based OAuth callback server
npm install express dotenv

Step 2: Configure OAuth 2.0 Credentials

# .env (NEVER commit — add to .gitignore)
MIRO_CLIENT_ID=your_client_id
MIRO_CLIENT_SECRET=your_client_secret
MIRO_REDIRECT_URI=http://localhost:3000/auth/miro/callback
MIRO_ACCESS_TOKEN=              # Filled after OAuth flow
MIRO_REFRESH_TOKEN=             # Filled after OAuth flow

Miro uses standard OAuth 2.0 authorization code flow. Tokens expire in 3599 seconds (approximately 1 hour). Always store and use the refresh token.

Step 3: OAuth 2.0 Authorization Flow

// src/auth.ts
import { Miro } from '@mirohq/miro-api';
import express from 'express';

// High-level client handles token management
const miro = new Miro({
  clientId: process.env.MIRO_CLIENT_ID!,
  clientSecret: process.env.MIRO_CLIENT_SECRET!,
  redirectUrl: process.env.MIRO_REDIRECT_URI!,
  // Storage adapter for tokens (implement for production)
  storage: {
    async get(userId: string) {
      // Return stored token for user
      return getTokenFromDB(userId);
    },
    async set(userId: string, token) {
      // Persist token
      await saveTokenToDB(userId, token);
    },
  },
});

const app = express();

// Step 1: Redirect user to Miro authorization page
app.get('/auth/miro', (req, res) => {
  const authUrl = miro.getAuthUrl();
  res.redirect(authUrl);
});

// Step 2: Handle OAuth callback
app.get('/auth/miro/callback', async (req, res) => {
  const { code } = req.query;
  if (!code || typeof code !== 'string') {
    return res.status(400).send('Missing authorization code');
  }

  try {
    // Exchange code for access_token + refresh_token
    await miro.exchangeCodeForAccessToken('default-user', code);
    res.send('Miro connected successfully!');
  } catch (err) {
    console.error('Token exchange failed:', err);
    res.status(500).send('Authentication failed');
  }
});

app.listen(3000, () => console.log('OAuth server at http://localhost:3000'));

Step 4: Direct API Access (Access Token Only)

For scripts and automation where you already have an access token:

// src/client.ts
import { MiroApi } from '@mirohq/miro-api';

// Low-level stateless client — pass token directly
const api = new MiroApi(process.env.MIRO_ACCESS_TOKEN!);

// Verify connection by listing boards
async function verifyConnection() {
  const boards = await api.getBoards();
  console.log(`Connected! Found ${boards.body.data?.length ?? 0} boards`);
  return true;
}

verifyConnection().catch(console.error);

Step 5: Configure OAuth Scopes

In your Miro app settings (https://developers.miro.com), enable the scopes your app requires:

Scope	Purpose	Required For
boards:read	Read board data, items, members	GET endpoints
boards:write	Create/update/delete boards and items	POST/PUT/PATCH/DELETE endpoints
team:read	Read team info and members	Team management
team:write	Manage team membership	Team provisioning
organizations:read	Read org structure	Enterprise features
identity:read	Read user profile	User identification
auditlogs:read	Read audit logs	Enterprise compliance

Token response after successful exchange:

{
  "access_token": "eyJ...",
  "refresh_token": "eyJ...",
  "token_type": "bearer",
  "expires_in": 3599,
  "scope": "boards:read boards:write",
  "user_id": "1234567890",
  "team_id": "9876543210"
}

Error Handling

Error	HTTP Status	Cause	Solution
insufficientPermissions	403	Missing OAuth scope	Add required scope in app settings and re-authorize
tokenExpired	401	Access token expired	Use refresh token to get new access token
invalidGrant	400	Auth code already used or expired	Restart OAuth flow from the beginning
invalidClient	401	Wrong client_id or client_secret	Verify credentials in Miro app settings
ENOTFOUND api.miro.com	N/A	DNS/network failure	Check internet and firewall rules

Token Refresh Pattern

async function refreshAccessToken(): Promise<string> {
  const response = await fetch('https://api.miro.com/v1/oauth/token', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: new URLSearchParams({
      grant_type: 'refresh_token',
      client_id: process.env.MIRO_CLIENT_ID!,
      client_secret: process.env.MIRO_CLIENT_SECRET!,
      refresh_token: process.env.MIRO_REFRESH_TOKEN!,
    }),
  });

  if (!response.ok) {
    throw new Error(`Token refresh failed: ${response.status}`);
  }

  const data = await response.json();
  // Store new tokens
  process.env.MIRO_ACCESS_TOKEN = data.access_token;
  process.env.MIRO_REFRESH_TOKEN = data.refresh_token;
  return data.access_token;
}

Resources

• Miro OAuth 2.0 Guide
• Permission Scopes Reference
• Miro Node.js Client
• @mirohq/miro-api on npm
• Troubleshoot OAuth 2.0

Next Steps

After successful auth, proceed to miro-hello-world for your first board and item operations.