Consuming API Which is having Secure Username and Password i.e Authentication

Question

Consuming API Which is having Secure Username and Password i.e Authentication

206 views Asked by Vinod Kumar Marupu At 02 September 2015 at 15:02

How to consume IBM Cast iron API in Mobile Application. The API is having authentication like Username & Password (401 Authorization Required). The Problem here is how to authenticate the API in javascript using Ajax call.

This is My code:

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>JSP Page</title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
    <script>
        $(document).ready(function () {
            $("#bSubmit").click(function () {
                alert("Button Clicked");
                var xmlString;
                var username = 'myusername';
                var password = 'mypassword';
                $.ajax({
                    url: 'MYURL',
                    crossDomain: true,
                    headers: {
                        "Authorization": "Basic " + btoa(username + ":" + password)
                    },

                    type: "POST", //This is what you should chage
                    dataType: "xml",
                    contentType: "application/xml; charset=utf-8",
                    }).done(function (response) {
                        alert("Sucess"+response);
                            xmlString = (new XMLSerializer()).serializeToString(response);
                             $("#displayout").html(xmlString);
                    }).fail(function (request, textStatus, errorThrown) {
                        alert("wrong");
                        alert(textStatus + " : " + errorThrown.toString());
                 });
                });
          });
    </script>
</head>
<body>
    <input type="text" name="1" id="txt1">
    <input type="submit" name="b" value="Submit" id="bSubmit"> 
    <div id="displayout">
    </div>
</body>

I have Added CORS filter in firefox and IE. This is working fine in IE. But it is not working in firefox and Chrome.

In IE: I changed the setting by the following this link It is working for me.

In firefox console it is displaying like:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://MYURL. This can be fixed by moving the resource to the same domain or enabling CORS.

In Chrome console it is displaying like:

OPTIONS https://MYURL 401 (Authorization Required)

XMLHttpRequest cannot load https://MYURL. Invalid HTTP status code 401

Could you please help me out.

Original Q&A

There are 1 answers

**Vinod Kumar Marupu** · Accepted Answer · 2015-09-15T18:16:06+00:00

Using Java I got Response. But using AJAX call still it is the same error like an authorisation problem.

Java based code:

public class Sample {
public static void main(String[] args) throws Exception {
     final String userid = "username";
     final String pwd = "password";
     String addressXML="";
     String url="URL";
    //Create an instance of HttpClient.
    final HttpClient client = new HttpClient();
    //com.sun.jersey.api.client.ClientResponse response;
    final URL uri = new URL(url);
    final GetMethod getmethods = new GetMethod(url);
    AuthScope authscope = new AuthScope(uri.getHost(), uri.getPort());
    Credentials defaultcreds = new UsernamePasswordCredentials(userid, pwd);
    client.getState().setCredentials(authscope, defaultcreds);
    getmethods.setDoAuthentication(true);
    client.getParams().setAuthenticationPreemptive(true);
    final int responseCode = client.executeMethod(getmethods);
    if (responseCode == 200) {
        InputStream in = getmethods.getResponseBodyAsStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        StringBuilder out = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            out.append(line);
        }
        addressXML = out.toString();
        System.out.println("Resultent Data" + addressXML);   //Prints the string content read from input stream  nodes 
        reader.close();
    } else {
        throw new RuntimeException("Failed : HTTP error code : " + responseCode + " address rs service error!");
    }
}}

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Consuming API Which is having Secure Username and Password i.e Authentication

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