Question

如何阅读此API并从中获取信息？到javascript。

https://bitcoinfees.earn.com/api/v1/fees/recommended

this does not seem to work - 
loadJSON("https://bitcoinfees.earn.com/api/v1/fees/recommended", gotData, 'jsonp');

function gotData(data) {
  println(data);
}

Answer 1

loadJSON不是本机JS函数（它位于库p5中）。您可以像这样使用fetch函数：

    fetch("https://bitcoinfees.earn.com/api/v1/fees/recommended") // Call the fetch function passing the url of the API as a parameter
    .then((resp) => resp.json()) // Transform the data into json
    .then(function(data) {
        // Your code for handling the data you get from the API
    	console.log(data);
        console.log(data.fastestFee); //And since it is just an object you can access any value like this
    })
    .catch(function(err) {
        // This is where you run code if the server returns any errors (optional)
    	console.log(err)
    });

Answer 2

仅使用javascript：

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
    if (xhttp.readyState == 4 && xhttp.status == 200) {
       // Typical action to be performed when the document is ready:
       document.getElementById("demo").innerHTML = xhttp.responseText;
       alert(JSON.stringify(xhttp.responseText));
      //To display fastestFee's value  	
      var parseData = JSON.parse(xhttp.responseText);
      alert(parseData.fastestFee);
    }
};
xhttp.open("GET", "https://bitcoinfees.earn.com/api/v1/fees/recommended", true);
xhttp.send();

<div id="demo"> </div>

Answer 3

Google的第一个结果。学习它。使用它。

    var url = "https://bitcoinfees.earn.com/api/v1/fees/recommended";
    
    var req = $.ajax(url, {
      success: function(data) {
        console.log(data);
      },
      error: function() {
        console.log('Error!');  
      }
    });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

写一些可以读取此API Url的内容

3 个答案: