AXIOS get request failed 400 React Native - reactjs

Question

I am trying to make an axios get request to this endpoint, but I am keep getting this error " [Error: Request failed with status code 400]".
clikk = () => {
console.log('saasdasdl');
var user = 'reflect-user';
var pass = 'user1Pass';
let dta = JSON.stringify({
username: 'test.admin',
password: 'password',
emailAddress: 'test#gmai.com',
});
const headers = {
'Content-Type': 'application/json',
Authorization: 'Basic ctesmtVmbGVjdC11c2VyOnVzZXIxUGFzcw==',
'Access-Control-Allow-Origin': '*',
accept: 'application/json',
};
// var bytes = utf8.encode(user + ':' + pass);
// var authorizationBasic = base64.encode(bytes);
axios({
method: 'get',
url: 'http://IpOfServer:8080/api/v1/user/getUser?all=true',
headers: headers,
data: qs.parse({
username: 'test.admin',
password: 'password',
emailAddress: 'test#gmai.com',
}),
})
.then((res) => {
//const nameList = res.data;
//this.setState({nameList});
console.log(res);
})
.catch((error) => console.log(error));
};
However same request is working in POSTMAN so API may not be involved ish? I've also tried to AXIOS example provided by POSTMAN but I am getting the same error.
var data = JSON.stringify({"username":"test.admin","password":"password","emailAddress":"test6#gmai.com"});
var config = {
method: 'get',
url: 'http://IpOfServer:8080/api/v1/user/getUser?all=true',
headers: {
'Authorization': 'Basic cmVmbGVjdC11c2VyOnVzZXIxUGFzcw==',
'Content-Type': 'application/json'
},
data : data
};
axios(config)
.then(function (response) {
console.log(JSON.stringify(response.data));
})
.catch(function (error) {
console.log(error);
});
Thank you.