React Native(Fetch and Session)

Fetch:

http://liuwangshu.cn/rn/primer/5-fetch.html

Session:

Use AsyncStorage.

Example:

For save:

AsyncStorage.multiSet([

    ["email", userInfo.email],

    ["password", userInfo.password]

])

For Delete:

let keys = ['email', 'password'];

AsyncStorage.multiRemove(keys, (err) => {

    ('Local storage user info removed!');

});

For Get:

AsyncStorage.multiGet(['email', 'password']).then((data) => {

    let email = data[0][1];

    let password = data[1][1];

    if (email !== null)

        //Your logic

});

或者看官网。