Back Market

🚀 Quickstart

Connect to Back Market with Nango and see data flow in 2 minutes.

Create an integration

In Nango (free signup), go to Integrations -> Configure New Integration -> Back Market.

Authorize Back Market

Go to Connections -> Add Test Connection -> Authorize, then enter your platform and API token. Later, you’ll let your users do the same directly from your app.

Call the Back Market API

Let’s make your first request to the Back Market API (list your listings). Replace the placeholders below with your secret key, integration ID, and connection ID:

cURL
Node

curl "https://api.nango.dev/proxy/ws/listings" \
  -H "Authorization: Bearer <NANGO-SECRET-KEY>" \
  -H "Provider-Config-Key: <INTEGRATION-ID>" \
  -H "Connection-Id: <CONNECTION-ID>"

Install Nango’s backend SDK with npm i @nangohq/node. Then run:

import { Nango } from '@nangohq/node';

const nango = new Nango({ secretKey: '<NANGO-SECRET-KEY>' });

const response = await nango.get({
    endpoint: '/ws/listings',
    providerConfigKey: '<INTEGRATION-ID>',
    connectionId: '<CONNECTION-ID>'
});

console.log(response.data);

Or fetch credentials dynamically via the Node SDK or API.✅ You’re connected! Check the Logs tab in Nango to inspect requests.

Implement Nango in your app

Follow our Auth implementation guide to integrate Nango in your app.

📚 Back Market Integration Guides

Nango-maintained guides for common use cases.

How do I link my account?
Connect your Back Market account using the Connect UI

Official docs: Back Market API Guidelines

Back Market runs three separate platforms — EU (backmarket.fr), US/NA (backmarket.com), and AP (backmarket.co.jp) — each with its own seller account, API token, and preprod (sandbox) environment. A seller account on one platform or environment cannot authenticate against another.

⚙️ Country code and user-agent

The Country Code and User-Agent aren’t something Nango asks each seller for — they belong to your app, not to any individual Back Market seller account. Set them once as connection config defaults instead:

{
    "integrations_config_defaults": {
        "back-market": {
            "connection_config": {
                "countryCode": "fr-fr",
                "userAgent": "BM-{CompanyName}-{IntegrationName};contact@yourdomain.com"
            }
        }
    }
}

🧩 Pre-built syncs & actions for Back Market

Enable them in your dashboard. Extend and customize to fit your needs. No pre-built syncs or actions available yet.

Not seeing the integration you need? Build your own independently.

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Overview

900+ APIs & Integrations

🚀 Quickstart

📚 Back Market Integration Guides

⚙️ Country code and user-agent

🧩 Pre-built syncs & actions for Back Market

​🚀 Quickstart

​📚 Back Market Integration Guides

​⚙️ Country code and user-agent

​🧩 Pre-built syncs & actions for Back Market

🚀 Quickstart

📚 Back Market Integration Guides

⚙️ Country code and user-agent

🧩 Pre-built syncs & actions for Back Market