Objective-C

Initialize an HTTP Request from a URL

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Demonstrates how to initialize an HTTP request object from a URL. Objective-C

#import <CkoHttpRequest.h>

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

//  Loads the HTTP request object from a URL
[req SetFromUrl: @"https://www.youtube.com/watch?v=fAZdTchQePc&t=45s"];

//  The verb will be "GET"
NSLog(@"%@%@",@"verb = ",req.HttpVerb);
//  The path will be "/watch"
NSLog(@"%@%@",@"path = ",req.Path);

//  The output of this loop will be
//  0) v: fAZdTchQePc
//  1) t: 45s
int i;
int numParams = [req.NumParams intValue];
for (i = 0; i <= numParams - 1; i++) {
    NSLog(@"%d%@%@%@%@",i,@") ",[req GetParamName: [NSNumber numberWithInt: i]],@": ",[req GetParamValue: [NSNumber numberWithInt: i]]);
}

//  View the request that would be sent if HttpSReq is called.
//  The HTTP request will be a GET that looks like this:
//  
//      GET /watch?v=fAZdTchQePc&t=45s HTTP/1.1
//      Host: domain
//  
//  Note: The HOST header will automatically get filled in with the actual domain when HttpSReq is called.

NSLog(@"%@",[req GenerateRequestText]);

//  We can add additional params
[req AddParam: @"artist" value: @"Richard Bona"];
[req AddParam: @"musicType" value: @"Jazz"];
[req AddParam: @"festival" value: @"Estival Jazz Lugano"];
[req AddParam: @"year" value: @"2008"];

//  Now examine the request that would be sent
//  
//      GET /watch?v=fAZdTchQePc&t=45s&artist=Richard%20Bona&musicType=Jazz&festival=Estival%20Jazz%20Lugano&year=2008 HTTP/1.1
//      Host: domain
//  
NSLog(@"%@",[req GenerateRequestText]);

//  We can remove a parameter:
[req RemoveParam: @"t"];
NSLog(@"%@",[req GenerateRequestText]);

//  What happens if we change the request from a GET to a POST?
req.HttpVerb = @"POST";
//  The request will now look like this:
//  
//     POST /watch HTTP/1.1
//     Host: domain
//     Content-Length: 93
//     
//     v=fAZdTchQePc&artist=Richard%20Bona&musicType=Jazz&festival=Estival%20Jazz%20Lugano&year=2008
//  
NSLog(@"%@",[req GenerateRequestText]);

//  What happens if we make it a multipart/form-data?
req.ContentType = @"multipart/form-data";
//  Now the POST looks like this:
//     
//     POST /watch HTTP/1.1
//     Content-Type: multipart/form-data; boundary=------------020906020106050705030807
//     Host: domain
//     Content-Length: 545
//     
//     --------------020906020106050705030807
//     Content-Disposition: form-data; name="v"
//     
//     fAZdTchQePc
//     --------------020906020106050705030807
//     Content-Disposition: form-data; name="artist"
//     
//     Richard Bona
//     --------------020906020106050705030807
//     Content-Disposition: form-data; name="musicType"
//     
//     Jazz
//     --------------020906020106050705030807
//     Content-Disposition: form-data; name="festival"
//     
//     Estival Jazz Lugano
//     --------------020906020106050705030807
//     Content-Disposition: form-data; name="year"
//     
//     2008
//     --------------020906020106050705030807--

NSLog(@"%@",[req GenerateRequestText]);