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Is it possible to record the date and time of the last request? If that is possible that value can be used on subsequent API requests.

The next API request can use the filter datebegin with the value being the date and time of the last request. This results in only receiving the time entries that are new since the last request.

The URL would look something like:

https://api.myintervals.com/time/?datestart=2012-06-29 06:00:00

thanks jprado
it was the first idea that I too have had to filter through datebegin and dateend, in fact, is what I did. But the problem remains because the request via GET does not support the filter "Datemodified" and so you lose all items older but changed after the databegin.

@Webemil
I created:
1. TABLE where to save the data;
2. CODEUNIT for API communication;
3. XMLport to bring the received XML data in the table;
4. a PAGE to filter data and run the codeunit.

I'll leave the heart of codeunit:

// initializations var
CREATE(XmlHttp); :'Microsoft XML, v6.0'.XMLHTTP60";
CREATE(XmlOut); :'Microsoft XML, v6.0'.DOMDocument";
CREATE(XmlIn); :'Microsoft XML, v6.0'.DOMDocument";

//Create URL
datebeginUrl := FORMAT(datebegin,0,'<Year4>-<Month,2>-<Day,2>');
dateendUrl := FORMAT(dateend,0,'<Year4>-<Month,2>-<Day,2>');
newUrl := 'https://api.myintervals.com/time/?datebegin='+datebeginUrl+'&dateend='+dateendUrl+'&limit=0';
// Communication
XmlHttp.open('GET',newUrl,FALSE);
XmlHttp.setRequestHeader('content-type','text/xml');
XmlHttp.setRequestHeader('Accept','application/xml');
//XmlHttp.setRequestHeader('KeepAlive','true');
XmlHttp.setRequestHeader('Timeout','60000');

// Autentication
myEncoding := myEncoding.ASCIIEncoding();
myToken := 'XXXXXXXX';
myToken := myConvert.ToBase64String(myEncoding.GetBytes(myToken));
XmlHttp.setRequestHeader('Authorization', 'Basic '+myToken);

// Send request
XmlHttp.send();

// Get response
XmlOut.async := FALSE;
XmlOut.load(XmlHttp.responseXML);

//Save File
IF EXISTS('C:\Temp\XML\XML_Time.xml') THEN
ERASE('C:\Temp\XML\XML_Time.xml');
XmlOut.save('C:\Temp\XML\XML_Time.xml');

//remove namespaces because the XMLport not digest them input
RemoveNamespace(XmlOut,XmlOut);

//XMLPort
TimeTable.DELETEALL;
TimeFile.OPEN('C:\Temp\XML\XML_Time.xml');
TimeFile.CREATEINSTREAM(TestStream);
XMLPORT.IMPORT(90004,TestStream);
TimeFile.CLOSE;
MESSAGE('XMLPort complete');

CLEAR(XmlHttp);