Zig

Upload (Append) Email to an IMAP Mailbox and get the UID of the Appended Email

Upload / append an email to an IMAP mailbox and get the UID of the appended email. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    const imap = try chilkat.Imap.init();
    defer imap.deinit();

    // Connect to an IMAP server.
    // Use TLS
    imap.setSsl(true);
    imap.setPort(993);
    imap.connect("imap.example.com") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    // Login
    imap.login("myLogin", "myPassword") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    // Check the capabilities of the IMAP server.
    const cap = try imap.capability(alloc);
    std.debug.print("IMAP capabilities: {s}\n", .{cap});

    // If the capabilities string contains the substring "UIDPLUS", then
    // the UID of the appended email will be available in the AppendUid property (see below).

    // For example, the GMail IMAP server has these capabilities (at this current time)
    // * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN
    // X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE ENABLE MOVE CONDSTORE ESEARCH UTF8=ACCEPT
    // APPENDLIMIT=35882577 LIST-EXTENDED LIST-STATUS

    const email = try chilkat.Email.init();
    defer email.deinit();

    // Load the email from a .eml file.
    email.loadEml("myEmail.eml") catch {
        std.debug.print("{s}\n", .{try email.getLastErrorText(alloc)});
        return;
    };

    imap.appendMail("Inbox", email) catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    // If the IMAP server supports the UIDPLUS extension, then the
    // imap.AppendUid will contain the UID of the appended email.
    // Otherwise AppendUid will be 0.
    std.debug.print("UID of appended email: {d}\n", .{imap.getAppendUid()});

    // If the IMAP server does NOT have UIDPLUS, then a program can
    // first select the mailbox, get the value of the UidNext property,
    // and then append.  The appended email SHOULD have a UID equal to
    // the UidNext that was obtained just prior to appending (assuming no other
    // program is simultaneously appending an email to the same mailbox).

    // Note: It is not required to select a mailbox to append.  The select is only
    // done for the purpose of obtaining the UIDNEXT value.
    imap.selectMailbox("Inbox") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    const uid_next = @as(i32, @intCast(imap.getUidNext()));

    imap.appendMail("Inbox", email) catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("The UID of the appended email SHOULD be {d}\n", .{uid_next});

    std.debug.print("Email uploaded to Inbox!\n", .{});

    // Disconnect from the IMAP server.
    try imap.disconnect();
}