Objective-C

Set a Multipart Part Body from BinData

Demonstrates Rest.SetMultipartBodyBd, which sets the binary body of the selected multipart part from a BinData.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background. A multipart request is assembled part by part: the part selector chooses the part being built, header fields describe it, and a SetMultipartBody method supplies its content. The request is then sent with a multipart send or full-request method.

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Objective-C

#import <CkoRest.h>
#import <CkoBinData.h>
#import <NSString.h>

BOOL success = NO;

CkoRest *rest = [[CkoRest alloc] init];
BOOL bTls = YES;
BOOL bAutoReconnect = YES;
success = [rest Connect: @"example.com" port: [NSNumber numberWithInt: 443] tls: bTls autoReconnect: bAutoReconnect];
if (success == NO) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

//  The file paths are relative to the application's current working directory.  Absolute paths
//  may also be used.  Supply the paths appropriate to your own environment.

//  Select the multipart part to build, and set its header fields.
rest.PartSelector = @"1";
[rest AddHeader: @"Content-Disposition" value: @"form-data; name=\"field1\""];
[rest AddHeader: @"Content-Type" value: @"image/png"];

//  Set the binary body of the selected part from a BinData.
CkoBinData *bdBody = [[CkoBinData alloc] init];
BOOL bLoaded = [bdBody LoadFile: @"qa_data/image.png"];
if (bLoaded != YES) {
    NSLog(@"%@",@"Failed to load the part body file.");
    return;
}

success = [rest SetMultipartBodyBd: bdBody];
if (success == NO) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

NSString *responseText = [rest FullRequestMultipart: @"POST" uriPath: @"/api/upload"];
if (rest.LastMethodSuccess == NO) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

NSLog(@"%@",responseText);