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tzuvy How To Download Files From URL?
Hello,
I'm trying to write a class that would be schedulled in order to download a file from the internet and attach it to a custom object once a day.
The file is a Zip file that contains an XML document inside.
Idealy in java I simply use the IO.downloadFileFromHttpsURL(url, null, file); method to save the file into a local machine. IS there a method in SalesForce to do this and save the file downloaded to an instance of a custom object?
Thanks
Tzuvy
To download files from URL use the httprequest class which contains lot of methods.
public class DomDocument
{
// Pass in the URL for the request
// For the purposes of this sample,assume that the URL
// returns the XML shown above in the response body
public void parseResponseDom(String url)
{
Http h = new Http();
HttpRequest req = new HttpRequest();
// url that returns the XML in the response body
req.setEndpoint(url);
req.setMethod('GET');
HttpResponse res = h.send(req);
Dom.Document doc = res.getBodyDocument();
//Retrieve the root element for this document.
Dom.XMLNode address = doc.getRootElement();
String name = address.getChildElement('name', null).getText();
String state = address.getChildElement('state', null).getText();
// print out specific elements
System.debug('Name: ' + name);
System.debug('State: ' + state);
// Alternatively, loop through the child elements.
// This prints out all the elements of the address
for(Dom.XMLNode child : address.getChildElements()) {
System.debug(child.getText());
}
}
}
For more information you can visit at this link:
http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_classes_xml_dom_document.htm
http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_classes_restful_http_httprequest.htm
Hope this helps.
All Answers
To download files from URL use the httprequest class which contains lot of methods.
public class DomDocument
{
// Pass in the URL for the request
// For the purposes of this sample,assume that the URL
// returns the XML shown above in the response body
public void parseResponseDom(String url)
{
Http h = new Http();
HttpRequest req = new HttpRequest();
// url that returns the XML in the response body
req.setEndpoint(url);
req.setMethod('GET');
HttpResponse res = h.send(req);
Dom.Document doc = res.getBodyDocument();
//Retrieve the root element for this document.
Dom.XMLNode address = doc.getRootElement();
String name = address.getChildElement('name', null).getText();
String state = address.getChildElement('state', null).getText();
// print out specific elements
System.debug('Name: ' + name);
System.debug('State: ' + state);
// Alternatively, loop through the child elements.
// This prints out all the elements of the address
for(Dom.XMLNode child : address.getChildElements()) {
System.debug(child.getText());
}
}
}
For more information you can visit at this link:
http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_classes_xml_dom_document.htm
http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_classes_restful_http_httprequest.htm
Hope this helps.
Thanks this is what I was looking for httprequest and responses.
It works perfectly for me.
Many thanks
Tzuvy
https://retrology.net/how-to-create-a-file-from-an-email-attachment-in-salesforce
hi, thanks for giving this information.
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