Convert CURL Request to Axios

Please how can I convert this curl request to it's axios equivalent?

curl -X POST https://api.pinterest.com/v5/oauth/token --header "Authorization: Basic {base64 encoded string made of client_id:client_secret}" --header 'Content-Type: application/x-www-form-urlencoded' --data-urlencode 'grant_type=authorization_code' --data-urlencode 'code={YOUR_CODE}' --data-urlencode 'redirect_uri=http://localhost/'

I have spent several hours on this only for me to keep getting

 {"code":1,"message":"Invalid request body"}

Here is what I tried:

const redirectUrl = process.env.PINTEREST_OAUTH_CALLBACK_URL;
const clientId = process.env.PINTEREST_APP_ID;
const clientSecret = process.env.PINTEREST_APP_SECRET;
let url = 'https://api.pinterest.com/v5/oauth/token';

let accessTokenRequestBody = {
    code: code,
    grant_type: "authorization_code",
    redirect_uri: redirectUrl
};

const clientIdAndSecretBase64 = Buffer.from(`${clientId}:${clientSecret}`).toString('base64');
axios(url, {
    method: 'post',
    url: url,
    data: accessTokenRequestBody,
    headers: {
        "Content-Type": 'application/application/x-www-form-urlencoded; charset=UTF-8',
        "Authorization": `Basic ${clientIdAndSecretBase64}`
    }
}).then((response) => {
    let responseData = response.data;
    let accessToken = module.exports.encodePayloadIntoJWT(responseData);
    console.log(`Pinterest ResponseData = ${JSON.stringify(responseData, null, 2)}`);
}).catch((e) => {
    console.log(`${JSON.stringify(e.response.data)}`);
});

I would be really grateful to any help as this has wasted my time so much. I'm currently running behind deadline... Thank you.

You need to urlencode the parameters instead of passing an object as the data.

const params = new URLSearchParams();
params.append('redirect_uri', process.env.PINTEREST_OAUTH_CALLBACK_URL)
// do the same for other parameters
// ...
// make post