Error in accessing token 401 & 500

Developer API
1

i am getting a error of 401 & 500 after multiple way to access token.
here i am writing code.

app.post("/get-token", async (req, res) => {
  const { code } = req.body;

  if (!code) {
    return res.status(400).json({ error: "Code is required" });
  }

  try {
    const tokenResponse = await exchangeCodeForToken(code);
    const accessToken = tokenResponse.access_token;

    console.log("Access Token:", accessToken);

    res.json({
      email: tokenResponse.email,
      exchanges: tokenResponse.exchanges,
      products: tokenResponse.products,
      broker: tokenResponse.broker,
      user_id: tokenResponse.user_id,
      user_name: tokenResponse.user_name,
      order_types: tokenResponse.order_types,
      user_type: tokenResponse.user_type,
      poa: tokenResponse.poa,
      is_active: tokenResponse.is_active,
      access_token: accessToken,
      extended_token: tokenResponse.extended_token,
    });
  } catch (error) {
    console.error("Error exchanging code for token:", error.message);
    console.error(
      "Error details:",
      error.response ? error.response.data : error.request
    );
    res.status(500).json({ error: "Internal Server Error" });
  }
});
app.get("/get-token)
above file

async function exchangeCodeForToken(code) {
const tokenUrl = “https://api.upstox.com/v2/login/authorization/token”;

const headers = {
“Api-Version”: UPSTOX_API_VERSION,
“Content-Type”: “application/x-www-form-urlencoded”,
accept: “application/json”,
};

const data = new URLSearchParams();
data.append(“code”, code);
data.append(“client_id”, UPSTOX_CLIENT_ID);
data.append(“client_secret”, UPSTOX_CLIENT_SECRET);
data.append(“redirect_uri”, UPSTOX_REDIRECT_URI);
data.append(“grant_type”, “authorization_code”);
data.append(“upstox_code”, UPSTOX_API_CODE);

try {
const response = await axios.post(tokenUrl, data, { headers });
return response.data;
} catch (error) {
throw new Error(Failed to exchange code for token: ${error.message});
}
}

const authorizationCode = “q3w0Z4”;
const endpointUrl = “http://127.0.0.1:3001/get-token”;

const requestData = {
code: authorizationCode,
};

axios
.post(endpointUrl, requestData, {
headers: {
“Content-Type”: “application/json”,
},
})
.then((response) => {
console.log(“Access Token Response:”, response.data);
})
.catch((error) => {
console.error(“Error exchanging code for token:”, error.message);
});

please look at this is @Pradeep_Jaiswar @shanmu @Hariom_Gohel

2

@vinod_mokashi

Please refer to the cURL shared in the following thread.