Bolt.new AI and DHL API integration: Step-by-Step Guide 2025

When integrating Bolt.new with the DHL API, you don’t “connect Bolt to DHL.” Instead, inside Bolt.new you build a normal backend (Node.js/Express is typical there) that calls DHL’s REST API using DHL’s OAuth 2.0 credentials. Bolt.new acts only as your development workspace — the integration happens through DHL’s documented HTTP endpoints, DHL-issued API keys, and environment variables you create inside Bolt.new. In practice, the flow is: get DHL API credentials → store them as environment variables in Bolt → write backend routes that request an OAuth token from DHL → call DHL’s shipment/label/rate endpoints with that token → expose these routes to your front-end in Bolt.

 

DHL API integration inside Bolt.new: step-by-step

 

You can think of this as: Bolt.new = the place you write code; DHL = external service your code talks to. Nothing “auto-wires.” You implement the API calls yourself.

• Create a DHL developer account at https://developer.dhl.com.
• Request access to the specific DHL product you need (most common: DHL Express MyDHL API for shipping labels/rates, or DHL eCommerce APIs depending on your region).
• Obtain credentials: typically a client_id and client_secret for OAuth 2.0. DHL APIs do not work without this.
• In Bolt.new, create environment variables in your workspace: DHL_CLIENT_ID, DHL_CLIENT_SECRET, DHL_API_BASE\_URL. (Environment variables avoid hard-coding secrets in code.)
• Write a server route that authenticates with DHL by calling their OAuth token endpoint.
• Use the returned access token to call DHL endpoints: rating, shipping, tracking, or label generation.
• Call your backend routes from the front-end UI in Bolt.new.

 

How DHL authentication works (simple explanation)

 

DHL uses OAuth 2.0 “client credentials” flow. This means your backend sends your client_id and client_secret to DHL’s token URL. DHL returns an access\_token. You include that token in subsequent API calls.

The important part: this token exchange must happen in the backend, never the browser. Bolt.new allows you to run a backend (Node.js), so you keep secrets safe there.

 

Minimal working Node.js example inside Bolt.new

 

This is a realistic Express backend snippet you can drop into your Bolt.new workspace. It authenticates with DHL and fetches shipment rates (example uses DHL Express “rates” API). Adjust endpoint paths depending on your DHL product.

// server.js (Bolt.new backend)

import express from "express";
import fetch from "node-fetch"; // ensure node-fetch is installed

const app = express();
app.use(express.json());

// Load environment variables in Bolt.new
const DHL_CLIENT_ID = process.env.DHL_CLIENT_ID;
const DHL_CLIENT_SECRET = process.env.DHL_CLIENT_SECRET;
const DHL_API_BASE_URL = process.env.DHL_API_BASE_URL; // e.g. "https://api.dhl.com" or region-specific

// Function to request an OAuth access token from DHL
async function getDHLToken() {
  const res = await fetch(`${DHL_API_BASE_URL}/oauth/token`, {
    method: "POST",
    headers: {
      "Content-Type": "application/x-www-form-urlencoded"
    },
    body: `grant_type=client_credentials&client_id=${DHL_CLIENT_ID}&client_secret=${DHL_CLIENT_SECRET}`
  });

  if (!res.ok) {
    throw new Error("DHL token request failed");
  }

  const data = await res.json();
  return data.access_token;
}

// Example backend route: get shipping rates from DHL Express
app.post("/api/dhl/rates", async (req, res) => {
  try {
    const token = await getDHLToken();

    // Example DHL API endpoint for rates:
    const ratesURL = `${DHL_API_BASE_URL}/shipping/rates`;

    const dhlRes = await fetch(ratesURL, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
        "Authorization": `Bearer ${token}`
      },
      body: JSON.stringify(req.body) // Pass shipment details from the frontend
    });

    const result = await dhlRes.json();
    res.json(result);

  } catch (err) {
    console.error(err);
    res.status(500).json({ error: "DHL integration error" });
  }
});

app.listen(3000, () => console.log("Server running on port 3000"));

 

How to test this inside Bolt.new

 

• Create a small frontend form (React or plain HTML) that POSTs to /api/dhl/rates with shipment details.
• Open Bolt.new’s built-in preview window → submit form → watch backend logs.
• If DHL credentials and request data are valid, you’ll get real rate results.

 

When moving to production (outside Bolt)

 

• Use real environment variables in your hosting provider (Vercel, Render, AWS, etc.).
• Ensure HTTPS always.
• Follow DHL’s rate limits and retry rules — DHL APIs are strict about quotas.
• Store DHL client secrets securely (never commit to Git).

 

Summary

 

Bolt.new does not integrate with DHL automatically; you build a normal backend that authenticates with DHL using OAuth 2.0 and then call DHL endpoints. The pattern is always: credentials → token retrieval → actual DHL API call → frontend. Once those three pieces are wired, DHL becomes just another REST service inside your Bolt.new full‑stack app.