javascript - get api response data out of the scope

Question

I have used Async Storage in my React native app. so i have set the data by set AsyncStorage.setItem("@Token", jsonValue). and i have create another function for get data so, i unable to get my response out the scope of promise

Code:

storeData = async (value) => {
    try {
      const jsonValue = JSON.stringify(value);
      await AsyncStorage.setItem("@Token", jsonValue);
    } catch (e) {
      // saving error
    }
  };

  getData =   () => {
    const getTodos =  AsyncStorage.getItem("@Token");
getTodos.the((res)=>{

return res;
})
    if(res!==null){

        return true;
    }
else{


    return false
}
   


}

question from:https://stackoverflow.com/questions/65857306/get-api-response-data-out-of-the-scope

Answer 1

A value returned from a Promise is only accessible from within its .then() callback. This means that res is only available inside getTodos.then((res) => { ... }).

storeData = async (value) => {
  try {
    const jsonValue = JSON.stringify(value);
    await AsyncStorage.setItem("@Token", jsonValue);
  } catch (e) {
    // saving error
  }
};

getData = () => {
  const getTodos = AsyncStorage.getItem("@Token");
  getTodos.then((res) => {
    if (res !== null) {
      return true;
    } else {
      return false;
    }
  });
};