MobileFirst Platform adapter invocation fails in simulator - ios

Question

I have a sample project "Invoking adapter Procedures" in MobileFirst Platform. It receives feed and shows value while previewing in the MFP Console, but after adding the iPad environment and running it in Xcode it does not fetch any feed and instead shows an error in the Xcode console:
Cannot fetch feed
and in the iOS Simulator:
service not available
Adapter code
<displayName>RSSReader</displayName>
<description>RSSReader</description>
<connectivity>
<connectionPolicy xsi:type="http:HTTPConnectionPolicyType">
<protocol>http</protocol>
<domain>rss.cnn.com</domain>
<port>80</port>
<connectionTimeoutInMilliseconds>30000</connectionTimeoutInMilliseconds>
<socketTimeoutInMilliseconds>30000</socketTimeoutInMilliseconds>
<maxConcurrentConnectionsPerNode>50</maxConcurrentConnectionsPerNode>
<!-- Following properties used by adapter's key manager for choosing specific certificate from key store
<sslCertificateAlias></sslCertificateAlias>
<sslCertificatePassword></sslCertificatePassword>
-->
</connectionPolicy>
</connectivity>
<procedure name="getFeeds"/>
<procedure name="getFeedsFiltered"/>
JS Code
var busyIndicator = null;
function wlCommonInit(){
busyIndicator = new WL.BusyIndicator();
loadFeeds();
}
function loadFeeds(){
busyIndicator.show();
/*
* The REST API works with all adapters and external resources, and is supported on the following hybrid environments:
* iOS, Android, Windows Phone 8, Windows 8.
* If your application supports other hybrid environments, see the tutorial for MobileFirst 6.3.
*/
var resourceRequest = new WLResourceRequest("/adapters/RSSReader/getFeedsFiltered", WLResourceRequest.GET);
resourceRequest.setQueryParameter("params", "['technology']");
resourceRequest.send().then(
loadFeedsSuccess,
loadFeedsFailure
);
}
function loadFeedsSuccess(result){
WL.Logger.debug("Feed retrieve success");
busyIndicator.hide();
if (result.responseJSON.Items.length>0)
displayFeeds(result.responseJSON.Items);
else
loadFeedsFailure();
}
function loadFeedsFailure(result){
WL.Logger.error("Feed retrieve failure");
busyIndicator.hide();
WL.SimpleDialog.show("Engadget Reader", "Service not available. Try again later.",
[{
text : 'Reload',
handler : WL.Client.reloadApp
},
{
text: 'Close',
handler : function() {}
}]
);
}
function displayFeeds(items){
var ul = $('#itemsList');
for (var i = 0; i < items.length; i++) {
var li = $('<li/>').text(items[i].title);
var pubDate = $('<div/>', {
'class': 'pubDate'
}).text(items[i].pubDate);
li.append(pubDate);
ul.append(li);
}
Xcode Console log
I had used the code give in the sample app.

Answer 1

I am unable to recreate this error.
Make sure these are the steps you've taken:
Import into MobileFirst Platform Studio 7.0 the "Invoking adapter procedures in hybrid applications" sample project
Right-click on the adapter folder and select Run As > Deploy MobileFirst Adapter
Right-click on the project folder and select New > MobileFirst Environment, add iPad environment
Right-click on the iPad folder and select Run As > Xcode project
Click Run in Xcode
For me, by following the above steps I was able to successfully run the sample application in the iOS Simulator = the app was displayed and feeds were retrieved.