(Objective-C) FTP Download Text File to a Stream

Demonstrates how to FTP download a text file to a Chilkat stream.

Note: This example requires Chilkat v9.5.0.67 or greater.

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#import <CkoFtp2.h>
#import <CkoStream.h>
#import <CkoTask.h>
#import <NSString.h>

// This example assumes the Chilkat FTP2 API to have been previously unlocked.
// See FTP2 Unlock Sample for sample code.

CkoFtp2 *ftp = [[CkoFtp2 alloc] init];

ftp.Hostname = @"www.my-ftp-server.com";
ftp.Username = @"mFtpLogin";
ftp.Password = @"myFtpPassword";
ftp.AuthTls = YES;
ftp.Passive = YES;

// Connect and login to the FTP server using TLS.
BOOL success = [ftp Connect];
if (success != YES) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}

CkoStream *streamObj = [[CkoStream alloc] init];

// Indicate the charset of the incoming data.
streamObj.StringCharset = @"utf-8";

// Create a task to do the FTP download.
CkoTask *t = [ftp GetFileToStreamAsync: @"lines.txt" to: streamObj];
if (ftp.LastMethodSuccess != YES) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}

// Start the task in a background thread.
[t Run];

// Read the incoming text data using any of the streamObj Read methods.
// This example will read line-by-line.
NSString *line = 0;
while (streamObj.EndOfStream != YES) {
    line = [streamObj ReadToCRLF];
    if (streamObj.LastMethodSuccess == YES) {
        NSLog(@"%@",line);
    }

}

NSLog(@"%@",@"Success.");