Node.js
Node.js
Download the Full Version of a Partial Email
See more POP3 Examples
Demonstrates the Chilkat MailMan.FetchFull method, which downloads the complete version of a header-only or partial Email and stores it in a second Email. The full result includes the complete body and any attachments, and the partial email must retain its UIDL. This example previews message 1 (headers only) and then downloads it in full.
Background: A common pattern is to download headers first — cheap and fast — show the user a message list, and only pull the full content when a message is actually opened.
FetchFull completes that "download on demand" flow: given a partial email (which carries its UIDL), it fetches the rest from the server. This keeps bandwidth and latency low when browsing a large mailbox.Chilkat Node.js Downloads
NODEJS_PRELUDE
function chilkatExample() {
var success = false;
// Demonstrates the MailMan.FetchFull method, which downloads the complete version of a
// header-only or partial Email and stores it in a second Email. The full result includes
// the complete body and any attachments. The partial email must retain its UIDL.
var mailman = new chilkat.MailMan();
// Configure the POP3 server connection.
mailman.MailHost = "pop.example.com";
mailman.MailPort = 995;
mailman.PopSsl = true;
mailman.PopUsername = "user@example.com";
mailman.PopPassword = "myPassword";
// First fetch message 1 as headers only (a fast preview). headerOnly=true.
var partialEmail = new chilkat.Email();
success = mailman.FetchOne(true,0,1,partialEmail);
if (success == false) {
console.log(mailman.LastErrorText);
return;
}
console.log("Preview subject: " + partialEmail.Subject);
// Now download the complete message (body and attachments).
var fullEmail = new chilkat.Email();
success = mailman.FetchFull(partialEmail,fullEmail);
if (success == false) {
console.log(mailman.LastErrorText);
return;
}
console.log("Full email NumAttachments: " + fullEmail.NumAttachments);
// Note: Explicitly connecting/authenticating is optional. Chilkat MailMan automatically
// connects and authenticates -- using the property settings above -- whenever a server
// operation requires it. Calling the explicit connect/authenticate methods can still be
// helpful to determine whether a failure occurs while connecting or while authenticating.
}
chilkatExample();