I have a task to get and display in html a particular data from API result (console.log). For now on, I only have a javascript that gets exchange rates with currency conversion. From fetched data I only need currency rate.

var myHeaders = new Headers();
myHeaders.append("apikey", "r4T22n3O14QL7FoG6FzY7FuUHTNXiKAy");

var requestOptions = {
  method: 'GET',
  redirect: 'follow',
  headers: myHeaders
};

//var rslt = console.log(result);

fetch("https://api.apilayer.com/currency_data/convert?to=RUB&from=EUR&amount=1", requestOptions)
  .then(response => response.text())
  .then(result => console.log(result))
  .catch(error => console.log('error', error));

Here is the result I get in console.log and my problem is that I cannot display : 1. anything from that log to HTML and 2. particular data (rates) from that log.

this is the console log I am getting:

{
    "success": true,
    "query": {
        "from": "EUR",
        "to": "RUB",
        "amount": 1
    },
    "info": {
        "timestamp": 1658378463,
        "quote": 56.217115
    },
    "result": 56.217115
}

I need to get a rates/"quote" as a variable in order to use it elsewhere.

Thank you in advance.

CodePudding user response：

Use response.json() and then extract the properties that you want into variables.

fetch("https://api.apilayer.com/currency_data/convert?to=RUB&from=EUR&amount=1", requestOptions)
  .then(response => response.json())
  .then(json => {
    let quote = json.info.quote;
    document.getElementById("quote").innerText = quote;
   })
  .catch(error => console.log('error', error));

CodePudding user response：

1. To display value using HTML, you need to use Template literals concept in javascript. You can set elements with a unique ID in HTML. Using HTML DOM Element innerHTML Property and Template Literals you can achieve.

2. Particular data (rates) from that log:

let rate = result.result;

As I mentioned above you will get the rate result.

CodePudding user response：

Assuming you have something like

<div id="quote"></div>

in your html,

I would do something like this:

  .then(response => response.json())
  .then(data => { document.getElementById('quote').innerHTML = data.info.quote})
  .catch(error => console.log('error', error));

see https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch