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(Unicode C) Initialize an HTTP Request from a URLDemonstrates how to initialize an HTTP request object from a URL.
#include <C_CkHttpRequestW.h> void ChilkatSample(void) { HCkHttpRequestW req; int i; int numParams; req = CkHttpRequestW_Create(); // Loads the HTTP request object from a URL CkHttpRequestW_SetFromUrl(req,L"https://www.youtube.com/watch?v=fAZdTchQePc&t=45s"); // The verb will be "GET" wprintf(L"verb = %s\n",CkHttpRequestW_httpVerb(req)); // The path will be "/watch" wprintf(L"path = %s\n",CkHttpRequestW_path(req)); // The output of this loop will be // 0) v: fAZdTchQePc // 1) t: 45s numParams = CkHttpRequestW_getNumParams(req); for (i = 0; i <= numParams - 1; i++) { wprintf(L"%d) %s: %s\n",i,CkHttpRequestW_getParamName(req,i),CkHttpRequestW_getParamValue(req,i)); } // View the request that would be sent if SynchronousRequest 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 SynchronousRequest is called. wprintf(L"%s\n",CkHttpRequestW_generateRequestText(req)); // We can add additional params CkHttpRequestW_AddParam(req,L"artist",L"Richard Bona"); CkHttpRequestW_AddParam(req,L"musicType",L"Jazz"); CkHttpRequestW_AddParam(req,L"festival",L"Estival Jazz Lugano"); CkHttpRequestW_AddParam(req,L"year",L"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 // wprintf(L"%s\n",CkHttpRequestW_generateRequestText(req)); // We can remove a parameter: CkHttpRequestW_RemoveParam(req,L"t"); wprintf(L"%s\n",CkHttpRequestW_generateRequestText(req)); // What happens if we change the request from a GET to a POST? CkHttpRequestW_putHttpVerb(req,L"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 // wprintf(L"%s\n",CkHttpRequestW_generateRequestText(req)); // What happens if we make it a multipart/form-data? CkHttpRequestW_putContentType(req,L"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-- wprintf(L"%s\n",CkHttpRequestW_generateRequestText(req)); CkHttpRequestW_Dispose(req); } |
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