Objective-C

HTTP GET with Non-USASCII Query Params

See more HTTP Examples

This example illustrates how query parameters in a URL are typically encoded and transmitted. Objective-C

#import <CkoStringBuilder.h>
#import <CkoHttp.h>

BOOL success = NO;

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

//  First, let's load the string "Grünhöfer GmbH" from a file.  (This is a fictitious company name.)
//  The file uses the utf-8 charset encoding.
CkoStringBuilder *sbCompanyName = [[CkoStringBuilder alloc] init];
success = [sbCompanyName LoadFile: @"qa_data/txt/companyName.txt" charset: @"utf-8"];
//  Assuming success for this example...

//  We'll send an HTTP GET request to https://chilkatsoft.com/example?company_name={company name}

//  When sending an HTTP GET request with query parameters that contain accented characters 
//  (e.g., umlauts: ä, ö, ü), they must be percent-encoded (URL encoded) to ensure proper transmission and 
//  interpretation by the server.  This is based on their UTF-8 byte values.
CkoStringBuilder *sbUrl = [[CkoStringBuilder alloc] init];
[sbUrl Append: @"https://chilkatsoft.com/example?company_name="];
[sbUrl Append: [sbCompanyName GetEncoded: @"url" charset: @"utf-8"]];

CkoHttp *http = [[CkoHttp alloc] init];

//  Send the following HTTP GET request:

//  GET /example?company_name=Gr%C3%BCnh%C3%B6fer%20GmbH HTTP/1.1
//  Host: chilkatsoft.com
//  Accept: */*
//  Accept-Encoding: gzip

CkoStringBuilder *sbResponse = [[CkoStringBuilder alloc] init];
success = [http QuickGetSb: [sbUrl GetAsString] sbContent: sbResponse];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%@%d",@"response status code: ",[http.LastStatus intValue]);
NSLog(@"%@",[sbResponse GetAsString]);