(Objective-C) HTTP multipart-mixed POST (for a UPS Package Level Detail PLD Request)

Important: This example requires Chilkat v9.5.0.59 or greater.

Demonstrates how to create a POST for a UPS Package Level Detail PLD Request. The request must be a multipart-mixed request having two sub-parts. The first is a application/x-www-form-urlencoded with name=value URL encoded pairs. The second is a application/x-ups-binary containing a UPS PLD request.

The HTTP request created by this example looks like this:

POST /hapld/tos/kdwhapltos HTTP/1.1
Content-Type: multipart/mixed; boundary=------------050801040202040701030308
Host: domain
Content-Length: 658

--------------050801040202040701030308
Content-type: application/x-www-form-urlencoded
Content-length: 134

AppVersion=1.0&AcceptUPSLicenseAgreement=YES&VersionNumber=V4R1&UserId=myUser&Password=myPassword&ResponseType=application/x-ups-pld

--------------050801040202040701030308
Content-type: application/x-ups-binary
Content-length: 721

020094 2014041500000594196532600 000000001*AAV0Y203 DE 5941965326000001*BA1ZV0Y2036650001829 00001+0000000000000012 +0000000000000000KGS07COL10 3CMEUR000001*CA18TC239 AOK Bahnhofstr. Dresden 01099 DE *EAEVS+000000000000104200EUR*PA1ZV0Y2036650001829 02+0000012 +0000000+00000000+00000000+00000000*SA000005

--------------050801040202040701030308--

The HTTP response (if successful) is multipart MIME as shown below. This example will extract the response content using the Chilkat MIME API.

Content-type: text/html
Content-length: 138

<HTML>
<HEAD>
<TITLE>UPS Internet Software</TITLE>
</HEAD>
<BODY>
<P>UPS Internet Software, Copyright UPS 1998</P>
</BODY>
</HTML>

--BOUNDARY
Content-type: application/x-ups-psmpld
Content-length: 104

UPSOnLine%1.0%0000%0000Successful completion - No errors found.                                    

--BOUNDARY
Content-type: application/x-ups-pld
Content-length: 800

000200000787300000640 KDGPLCR1                   United Parcel Service                      09/06/16  Page:1                    Test PLD Control Report                     05:44 PM                                                                                  ------------------------------------------------------------------------------- Pickup Date:20030813 Sequence#:000005900000002 #of Segments:000000000000000005                                                                                                                                                                  Shipper#:0TEST0     Book/Page#:5900000002 Shipments:000001 Packages:0000000001 10000012900000000Successful completion - No errors found.                                        
!!! Test Upload !!!
File Uploaded: n/a

--BOUNDARY--

Chilkat Objective-C Library Downloads

MAC OS X (Cocoa) Libs

iOS Libs

#import <CkoHttpRequest.h>
#import <NSString.h>
#import <CkoStringBuilder.h>
#import <CkoHttp.h>
#import <CkoHttpResponse.h>
#import <CkoMime.h>

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

BOOL success;

CkoHttpRequest *req = [[CkoHttpRequest alloc] init];

// The ContentType, HttpVerb, and Path properties should
// always be explicitly set.
req.HttpVerb = @"POST";
req.Path = @"/hapld/tos/kdwhapltos";
req.ContentType = @"multipart/mixed";

// The 1st body of the multipart/mixed HTTP request will have a content-type of application/x-www-form-urlencoded
// It contains URL encoded parameters.
// We'll use a temporary HTTP request object solely for the purpose of generating our URL encoded parameter string.
CkoHttpRequest *paramEncoder = [[CkoHttpRequest alloc] init];
[paramEncoder AddParam: @"AppVersion" value: @"1.0"];
[paramEncoder AddParam: @"AcceptUPSLicenseAgreement" value: @"YES"];
[paramEncoder AddParam: @"VersionNumber" value: @"V4R1"];
[paramEncoder AddParam: @"UserId" value: @"UPS_USERID"];
[paramEncoder AddParam: @"Password" value: @"UPS_PASSWORD"];
NSString *urlEncodedParams = [paramEncoder GetUrlEncodedParams];

// The UPS server wants all params to be URL encoded except for the ResponseType param.
// Therefore, we'll add ResponseType unencoded at the end, like this:
CkoStringBuilder *sbParams = [[CkoStringBuilder alloc] init];
[sbParams Append: urlEncodedParams];
[sbParams Append: @"&ResponseType=application/x-ups-pld"];
// Also, it is very important to include a CRLF at the end.  (This is to satisfy undocumented details
// required by the UPS PLD server.)
[sbParams Append: @"\r\n"];

// Add the params as the 1st sub-part of the multipart/mixed request
[req AddStringForUpload2: @"" filename: @"" strData: [sbParams GetAsString] charset: @"" contentType: @"application/x-www-form-urlencoded"];

// Now for the 2nd part (using some junk data found on the developerkitcommunity.ups.com site.
// Notice the CRLF at the end of the string.  This is important.
NSString *pld = @"020094                                  2003081300000590000000200   000000001*AA0TEST0    DE                5900000002000001*BA1Z0TEST06800000018                 00001+0000000000000010 +0000000000000000KGS11PRE10                                   3CMEUR000001*CA18                                   United Parcel Service              Goerlitzer Str 1                                                                                         Neuss                              41460    DE                                                        *PA1Z0TEST06800000018                 02+0000010                                                                                      +0000000+00000000+00000000+00000000*SA000004\r\n";

[req AddStringForUpload2: @"" filename: @"" strData: pld charset: @"" contentType: @"application/x-ups-binary"];

// The UPS PLD server requires Content-Length headers within the MIME sub-parts of the request.
// A new feature of Chilkat v9.5.0.59 is if a Content-Length sub-header is added (with an arbitrary value, such as 0),
// then Chilkat will compute the actual sub-part size and replace the value when the request is sent.
[req AddSubHeader: [NSNumber numberWithInt: 0] name: @"Content-Length" value: @"0"];
[req AddSubHeader: [NSNumber numberWithInt: 1] name: @"Content-Length" value: @"0"];

// A few important comments about the HTTP request that is generated:
// 
// 1) Chilkat automatically generates a random boundary string.   In 99.999% of cases, this should 
//    be sufficient.
// 2) The top-level Content-Length header is automatically generated based on the actual length of the MIME message
//    that follows the intial (topmost) MIME header.
// 3) The HOST header will automatically get filled in with the actual domain when SynchronousRequest
//    method is called.

// Now send the request...
CkoHttp *http = [[CkoHttp alloc] init];

// If desired (for debugging), provide a flie path for a session log.
// The session log can be sent to support@chilkatsoft.com if the PLD request fails.
http.SessionLogFilename = @"c:/aaworkarea/ups_pld/sessionLog.txt";

// Send the PLD request over TLS..
CkoHttpResponse *resp = [http SynchronousRequest: @"www.pld-certify.ups.com" port: [NSNumber numberWithInt: 443] ssl: YES req: req];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

// Load the response MIME.
CkoMime *mime = [[CkoMime alloc] init];
[mime LoadMime: resp.FullMime];

// If it does not have 3 sub-parts, then something is amiss...
if ([mime.NumParts intValue] != 3) {
    NSLog(@"%@",@"Unexpected number of MIME parts.");
    NSLog(@"%@",resp.FullMime);
    return;
}

// Examine each response part.
CkoMime *part0 = [mime GetPart: [NSNumber numberWithInt: 0]];
NSLog(@"%@",@"---- text/html part ----");
NSLog(@"%@",[part0 GetBodyDecoded]);

CkoMime *part1 = [mime GetPart: [NSNumber numberWithInt: 1]];
NSLog(@"%@",@"---- application/x-ups-psmpld part ----");
NSLog(@"%@",[part1 GetBodyDecoded]);

CkoMime *part2 = [mime GetPart: [NSNumber numberWithInt: 2]];
NSLog(@"%@",@"---- application/x-ups-pld part ----");
NSLog(@"%@",[part2 GetBodyDecoded]);