Axios get function undefined when access outside,不能使用async和await

Question

The following code gives me undefined. I tried fixing it with various async/await but it came up as an error. Anyone know how to fix? EDIT: To be more specific, I need the value of "output" stored. I am using console.log just to guarantee it is getting the information I need it to have.

const URL = 'https://api.1inch.exchange/v3.0/1/quote?fromTokenAddress=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&toTokenAddress=0x6b175474e89094c44da98b954eedeac495271d0f&amount=1&protocols=';
function getAmount(){
    axios.get(URL).then((response) => {
    //console.log(response.data)
    const output = response.data.toTokenAmount
    //console.log(output)
    return output
})
//console.log(output)  
}
console.log(getAmount());

Answer 1

You must return promise inside getAmount function. Also you need to wait on that promise when calling getAmount function. This should work:

const URL = 'https://api.1inch.exchange/v3.0/1/quote?fromTokenAddress=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&toTokenAddress=0x6b175474e89094c44da98b954eedeac495271d0f&amount=1&protocols=';
function getAmount(){
    return axios.get(URL).then((response) => {
    const output = response.data.toTokenAmount
    return output; })
}

getAmount().then(toTokenAmount => console.log(toTokenAmount));