Request failed with status code 400

xameeramir

We have a code to generate the access token after successful logins:

export let generateAccessToken = async (req: Request, res: Response) => {

    try {
        const api_key = process.env.ZERODHA_API_KEY;
        const api_secret = process.env.ZERODHA_API_SECRET;
        const request_token = req.query.request_token;
        const checksumInput = `${api_key}${request_token}${api_secret}`;
        const checksum = await Crypto
            .createHash('sha256')
            .update(checksumInput)
            .digest('hex');

        const accessTokenResponse = await axios.post('https://api.kite.trade/session/token',
            {
                "api_key": api_key,
                "request_token": request_token,
                "checksum": checksum
            },
            {
                headers: {
                    "X-Kite-Version": 3
                }
            });

        res.send(JSON.stringify(accessTokenResponse));
    }
    catch (ex) {
        res.send('Error ' + ex);
    }
}

And the result is always this:


Can you guys please check why is this always coming up as 400 Missing or bad request parameters or values

ZI4453

https://kite.trade/docs/connect/v3/user/
I am not sure , but i think version 3 passes as int instead of string.. I might be wrong too.

sujith

We just redirect to the given URL. This 400 is your response.

xameeramir

@sujith @ZI4453 My question is why is the 400 a response? The parameters are perfectly all right I believe. I tried version to be a string too. Do you see any logs on your servers?

ZI4453

@xameeramir ,these are protocols, please review your Params, payloads.400 error has got nothing to do with broker's. its totally code Error(mostly "params" because its able to reach broker's server (thats why 400)but we have sent wrong payload to API(means server rejeceted)) from client end.

Vivek

@xameeramir Seems like issue is because Axios post request by default sends data as JSON payload but Kite API requires it to be `application/x-www-form-urlencoded`. You can check `axios.post` documentation on how to send POST request as `application/x-www-form-urlencoded` - https://github.com/axios/axios#using-applicationx-www-form-urlencoded-format

xameeramir

Hi @Vivek I have tried setting headers to "content-type": "application/x-www-form-urlencoded" too but the result is the same

sujith

The post request you are building has a syntax error. Just setting a header won't work. I suggest looking up for some examples of how to make a post request.
You may need to use an additional library as well.