How do I save json tokens ?

I have a Django back end that sends me a token after I log in, but I can't seem to figure out how to store that token.

answers online give a vague 'use SecureStore' but when I go to the documentation I cant seem to figure it out, here's what my code looks like:

`async function save(key, value) {

await SecureStore.setItemAsync(key, value);

}`

`async function SubmitLogin(){

try {

await fetch('[http://192.168.100.11:100/api/login/](http://192.168.100.11:100/api/login/)', {

method:'post',

mode:'no-cors',

headers: {

'Accept':'application/json',

'Content-Type':'application/json'

},

body: JSON.stringify({

username: username,

password : password,

})

}).then(response => response.json())

.then(response => save('token', response\[Object.keys(response)\[0\]\]))

.then(data => console.log(data))

.catch(error => console.log(error));

} catch (e) {

console.log(e);

}

}`

should i not do .then(response => save('token', response\[Object.keys(response)\[0\]\])\ ?