Missing Response Body While Calling Appian API

A Score Level 2

Hi Experts,

I'm trying to add validation on my Appian Portal Page which doesn't support Regex Functions and hence I have created a Web API which is validating weather entered IP is valid or not and calling it on the UI using an Integration Object, when I test the API using Postman, I receive the correct response. However, when I use Appian's Integration Object to call the same API, the response body comes back without any value.

Valid Test Value: "1.1.1.1" 

Postman Response: 

{
    "ipInfo": true
}
 

Appian Response:  

HTTP/1.1 200 200
Date: Thu, 02 Jan 2025 13:43:42 GMT
Content-Type: text/html;charset=UTF-8
Connection: keep-alive
Server: Apache
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload
Cache-Control: private
X-Trace-Id: a1956c41e9dd44f6226e475d8d145803
Referrer-Policy: strict-origin-when-cross-origin
X-Frame-Options: SAMEORIGIN
Content-Security-Policy-Report-Only: style-src 'unsafe-inline' 'self' https://web-assets.appian-cdn.com; child-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://web-assets.appian-cdn.com; object-src https:; frame-src https:; img-src https:; default-src 'self'; font-src 'self' https: data:; report-to /suite/rest/a/logging/latest/csp/report;
Content-Security-Policy: report-to /suite/rest/a/logging/latest/csp/report;
Vary: Accept-Encoding
Set-Cookie: JSESSIONID=E39CE1C3B5B14568DBD7ADBC0B200225.node1; Max-Age=0; Expires=Thu, 01 Jan 1970 00:00:10 GMT; Path=/suite; Secure; HttpOnly; SameSite=None; Partitioned; HttpOnly
Set-Cookie: JSESSIONID=E39CE1C3B5B14568DBD7ADBC0B200225.node1; Path=/suite; Secure; HttpOnly; SameSite=None; HttpOnly
X-Robots-Tag: none
X-XSS-Protection: 1; mode=block

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">




















<link rel="stylesheet" href="https://web-assets.appian-cdn.com/YWUtMjQuMy40NTAuMA/portal/css/banner.css?appian_environment=tempo" type="text/css" />

<script type="text/javascript">
  var hasSiteWideBanner = "true";
  if (window.APPIAN) {
    window.APPIAN.bannerInfo = {
      hasSiteWideBanner: hasSiteWideBanner === 'true',
      bannerMessage: "###TESTSERVER###dev",
      bannerColor: "#666666",
      bannerTextColor: "#ffffff"
    };
  }
</script>












<html lang="en" dir="">
<head>
  <!-- IMPORTANT: this cannot have any style/script between it and the top of the head! IE requires it to handle
    versions properly. See http://www.modern.ie/en-us/performance/how-to-use-x-ua-compatible for more -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta http-equiv="content-type" content="text/html" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta name="apple-mobile-web-app-status-bar-style"
      content="black-translucent" />
<meta name="viewport"
      content="width=device-width, initial-scale=1.0" />


  
    
      
      
        <link rel="stylesheet" href="https://web-assets.appian-cdn.com/YWUtMjQuMy40NTAuMA/portal/css/standard_styles_static.css?appian_environment=tempo" type="text/css" />
      
    

  
  


<script type="text/javascript">
function isInIframe() {
  try {
    return window.self !== window.top;
  } catch (exception) {
    // if in cross-origin, cannot access window.top
    return true;
  }
}
</script>


  
  
    <link rel="stylesheet" href="https://web-assets.appian-cdn.com/YWUtMjQuMy40NTAuMA/portal/css/login.css?appian_environment=tempo" type="text/css" />
  





























  <link rel="shortcut icon" href="https://###TESTSERVER###dev.appiancloud.com/suite/rest/a/content/latest/branding/favicon/1660077611000" />




<style>
  body.appian-body {
  background: #ebf1f7;
}

body.appian-body.mobile-landing {
  background: #fff;
}

.appian-body .message {
  color: red;
}

.appian-body form .field input {
  color: #333;
  border-color: #ccc;
}

.appian-body .submitButton {
  background-color: #E8E8E8;
  border: 1px solid #B0B0B0;
  color: #333333;
  font-size: 11px;
  font-weight: bold;
}

.appian-body .login_background {
  background-color: #416b88;
}

.appian-body .login_box input[type=text]:focus,
.appian-body .login_box input[type=password]:focus {
  border: 1px solid #1d659c;
}

.appian-body .button_box_links a:active {
  border-color: #1d659c;
}

.appian-body #back_link,
.appian-body .button_box_links a,
.appian-body .logoutForm #returnLink {
  color: #1d659c;
}

.appian-body .button_box_links a:hover,
.appian-body .button_box_links a:focus {
  border-bottom: 1px solid #1d659c;
  color: #1d659c;
}

.appian-body .btn {
  color: #1d659c;
  border: 1px solid #1d659c;
}

.appian-body input.iBlueButton {
  border: 1px solid #1d659c;
  background-color: #1d659c;
}

.appian-body .btn.primary {
  background-color: #1d659c;
}

.appian-body .btn:active,
.appian-body .btn:focus,
.appian-body .btn:hover,
.appian-body .choice_pair input[type=checkbox]:focus + label:before,
.appian-body input.iBlueButton:active,
.appian-body input.iBlueButton:focus,
.appian-body input.iBlueButton:hover {
  box-shadow: 0 0px 5px #1d659c;
}

.appian-body input.iText:focus {
  border: 1px solid #1d659c !important; /* ASI styles using !important to set blue border color */
}

.appian-body .logoutForm #returnLink:hover {
  border-bottom: 1px solid #1d659c
}

.appian-body #back_link:hover {
  color: #1d659c;
  border-bottom: 1px solid #1d659c;
}

.appian-body .choice_pair input[type=checkbox]:checked + label:before {
  background-color: #1d659c;
  border-color: #1d659c;
}

.appian-body .mobile_landing_links {
  color: #777;
}

.appian-body .mobile_landing_links a {
  color: #1d659c;
}

.appian-body a.mobile_landing_button.primary {
  color: #fff;
  background-color: #1d659c;
}

.appian-body a.mobile_landing_button.secondary {
  color: #1d659c;
  border: 1px solid #1d659c;
}

</style>


<title>Appian for TELUS (Cloud)</title>

</head>
<body class="appian-body">
  <div id="systemMessages" style="display: none">
    
      <div role="banner" class="banner" title="###TESTSERVER###dev"
           style="background-color: #666666; color: #ffffff;">
        <div class="banner_text">
          ###TESTSERVER###dev
        </div>
      </div>
    
  </div>
  <script type="text/javascript">
    if (!isInIframe()) {
      document.getElementById("systemMessages").style.display="block";
    }
  </script>
  <div class="appian_logo">
    
  </div>

  <div class="login_background">
  </div>
  <div id="loginBox" class="login_box  ">
    <div class="login_box_inner">
    <div class="login_logo">
      <img id="logo" src="https://###TESTSERVER###dev.appiancloud.com/suite/rest/a/content/latest/branding/logo/1660077611000"
           alt="Logo"/>
    </div>

      <div id="selfSelectionPrompt" class="selfSelectionPrompt">Use local or SSO login?</div>
        <div class="button_box_links wrap">
          
            <div class="selfSelectionBlock">
              <a href=/suite/webapi/isIPAddressValid?targetIp=1.1.1.1&signin=native> Local Login</a>
            </div>
          
            <div class="selfSelectionBlock">
              <a href=/suite/webapi/isIPAddressValid?targetIp=1.1.1.1&signin=telus> SSO</a>
            </div>
          
        </div>
      </div>
  </div>
  <div id="copyright">
    ©2003-2025 Appian Corporation
  </div>
  <link rel="stylesheet" href="https://web-assets.appian-cdn.com/YWUtMjQuMy40NTAuMA/portal/css/fonts/open-sans.css?appian_environment=tempo" type="text/css" />
</body>
</html>

Invalid Test Values: "1.1..1" 

Postman Response: 

{
    "ipInfo": "Entered IP Addresses either Invalid or Private IP Addresses :  1.1..1"
}

Appian Response: 

HTTP/1.1 200 200
Date: Thu, 02 Jan 2025 13:38:47 GMT
Content-Type: text/html;charset=UTF-8
Connection: keep-alive
Server: Apache
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload
Cache-Control: private
X-Trace-Id: 9fe1f66a83c2146ab13212fcbb7f72b9
Referrer-Policy: strict-origin-when-cross-origin
X-Frame-Options: SAMEORIGIN
Content-Security-Policy-Report-Only: style-src 'unsafe-inline' 'self' https://web-assets.appian-cdn.com; child-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://web-assets.appian-cdn.com; object-src https:; frame-src https:; img-src https:; default-src 'self'; font-src 'self' https: data:; report-to /suite/rest/a/logging/latest/csp/report;
Content-Security-Policy: report-to /suite/rest/a/logging/latest/csp/report;
Vary: Accept-Encoding
Set-Cookie: JSESSIONID=B4D59D4F1C55293A4680DF7C4EB24A9F.node1; Max-Age=0; Expires=Thu, 01 Jan 1970 00:00:10 GMT; Path=/suite; Secure; HttpOnly; SameSite=None; Partitioned; HttpOnly
Set-Cookie: JSESSIONID=B4D59D4F1C55293A4680DF7C4EB24A9F.node1; Path=/suite; Secure; HttpOnly; SameSite=None; HttpOnly
X-Robots-Tag: none
X-XSS-Protection: 1; mode=block

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">




















<link rel="stylesheet" href="https://web-assets.appian-cdn.com/YWUtMjQuMy40NTAuMA/portal/css/banner.css?appian_environment=tempo" type="text/css" />

<script type="text/javascript">
  var hasSiteWideBanner = "true";
  if (window.APPIAN) {
    window.APPIAN.bannerInfo = {
      hasSiteWideBanner: hasSiteWideBanner === 'true',
      bannerMessage: "###TESTSERVER###dev",
      bannerColor: "#666666",
      bannerTextColor: "#ffffff"
    };
  }
</script>












<html lang="en" dir="">
<head>
  <!-- IMPORTANT: this cannot have any style/script between it and the top of the head! IE requires it to handle
    versions properly. See http://www.modern.ie/en-us/performance/how-to-use-x-ua-compatible for more -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta http-equiv="content-type" content="text/html" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta name="apple-mobile-web-app-status-bar-style"
      content="black-translucent" />
<meta name="viewport"
      content="width=device-width, initial-scale=1.0" />


  
    
      
      
        <link rel="stylesheet" href="https://web-assets.appian-cdn.com/YWUtMjQuMy40NTAuMA/portal/css/standard_styles_static.css?appian_environment=tempo" type="text/css" />
      
    

  
  


<script type="text/javascript">
function isInIframe() {
  try {
    return window.self !== window.top;
  } catch (exception) {
    // if in cross-origin, cannot access window.top
    return true;
  }
}
</script>


  
  
    <link rel="stylesheet" href="https://web-assets.appian-cdn.com/YWUtMjQuMy40NTAuMA/portal/css/login.css?appian_environment=tempo" type="text/css" />
  





























  <link rel="shortcut icon" href="https://###TESTSERVER###dev.appiancloud.com/suite/rest/a/content/latest/branding/favicon/1660077611000" />




<style>
  body.appian-body {
  background: #ebf1f7;
}

body.appian-body.mobile-landing {
  background: #fff;
}

.appian-body .message {
  color: red;
}

.appian-body form .field input {
  color: #333;
  border-color: #ccc;
}

.appian-body .submitButton {
  background-color: #E8E8E8;
  border: 1px solid #B0B0B0;
  color: #333333;
  font-size: 11px;
  font-weight: bold;
}

.appian-body .login_background {
  background-color: #416b88;
}

.appian-body .login_box input[type=text]:focus,
.appian-body .login_box input[type=password]:focus {
  border: 1px solid #1d659c;
}

.appian-body .button_box_links a:active {
  border-color: #1d659c;
}

.appian-body #back_link,
.appian-body .button_box_links a,
.appian-body .logoutForm #returnLink {
  color: #1d659c;
}

.appian-body .button_box_links a:hover,
.appian-body .button_box_links a:focus {
  border-bottom: 1px solid #1d659c;
  color: #1d659c;
}

.appian-body .btn {
  color: #1d659c;
  border: 1px solid #1d659c;
}

.appian-body input.iBlueButton {
  border: 1px solid #1d659c;
  background-color: #1d659c;
}

.appian-body .btn.primary {
  background-color: #1d659c;
}

.appian-body .btn:active,
.appian-body .btn:focus,
.appian-body .btn:hover,
.appian-body .choice_pair input[type=checkbox]:focus + label:before,
.appian-body input.iBlueButton:active,
.appian-body input.iBlueButton:focus,
.appian-body input.iBlueButton:hover {
  box-shadow: 0 0px 5px #1d659c;
}

.appian-body input.iText:focus {
  border: 1px solid #1d659c !important; /* ASI styles using !important to set blue border color */
}

.appian-body .logoutForm #returnLink:hover {
  border-bottom: 1px solid #1d659c
}

.appian-body #back_link:hover {
  color: #1d659c;
  border-bottom: 1px solid #1d659c;
}

.appian-body .choice_pair input[type=checkbox]:checked + label:before {
  background-color: #1d659c;
  border-color: #1d659c;
}

.appian-body .mobile_landing_links {
  color: #777;
}

.appian-body .mobile_landing_links a {
  color: #1d659c;
}

.appian-body a.mobile_landing_button.primary {
  color: #fff;
  background-color: #1d659c;
}

.appian-body a.mobile_landing_button.secondary {
  color: #1d659c;
  border: 1px solid #1d659c;
}

</style>


<title>Appian for TELUS (Cloud)</title>

</head>
<body class="appian-body">
  <div id="systemMessages" style="display: none">
    
      <div role="banner" class="banner" title="###TESTSERVER###dev"
           style="background-color: #666666; color: #ffffff;">
        <div class="banner_text">
          ###TESTSERVER###dev
        </div>
      </div>
    
  </div>
  <script type="text/javascript">
    if (!isInIframe()) {
      document.getElementById("systemMessages").style.display="block";
    }
  </script>
  <div class="appian_logo">
    
  </div>

  <div class="login_background">
  </div>
  <div id="loginBox" class="login_box  ">
    <div class="login_box_inner">
    <div class="login_logo">
      <img id="logo" src="https://###TESTSERVER###dev.appiancloud.com/suite/rest/a/content/latest/branding/logo/1660077611000"
           alt="Logo"/>
    </div>

      <div id="selfSelectionPrompt" class="selfSelectionPrompt">Use local or SSO login?</div>
        <div class="button_box_links wrap">
          
            <div class="selfSelectionBlock">
              <a href=/suite/webapi/isIPAddressValid?targetIp=1.1..1&signin=native> Local Login</a>
            </div>
          
            <div class="selfSelectionBlock">
              <a href=/suite/webapi/isIPAddressValid?targetIp=1.1..1&signin=telus> SSO</a>
            </div>
          
        </div>
      </div>
  </div>
  <div id="copyright">
    ©2003-2025 Appian Corporation
  </div>
  <link rel="stylesheet" href="https://web-assets.appian-cdn.com/YWUtMjQuMy40NTAuMA/portal/css/fonts/open-sans.css?appian_environment=tempo" type="text/css" />
</body>
</html>

Please suggest what might be causing this issue or if there's something I might be overlooking?

  Discussion posts and replies are publicly visible