Delphi DLL Requires Chilkat v11.0.0+

HTTP PUT JSON

See more HTTP Examples

Demonstrates how to send a JSON PUT and get the JSON response body. Delphi DLL

var
success: Boolean;
req: HCkHttpRequest;
http: HCkHttp;
jsonText: PWideChar;
resp: HCkHttpResponse;

begin
success := False;

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

req := CkHttpRequest_Create();
http := CkHttp_Create();

//  The PUT request to be sent will look like this:

//  PUT /request HTTP/1.1
//  Content-Type: application/jsonrequest
//  Cookie: JSESSIONID=1234
//  Content-Encoding: identity
//  Host: json.penzance.org
//  Accept: application/jsonrequest
//  Accept-Encoding:
//  Content-Length: 72
//  
//  {"user":"doctoravatar@penzance.com","forecast":7,"t":"vlIj","zip":94089}

//  First, remove default header fields that would be automatically
//  sent.  (These headers are harmless, and shouldn't need to 
//  be suppressed, but just in case...)
CkHttp_putAcceptCharset(http,'');
CkHttp_putUserAgent(http,'');
CkHttp_putAcceptLanguage(http,'');

//  Suppress the Accept-Encoding header by disallowing 
//  a gzip response:
CkHttp_putAllowGzip(http,False);

//  If a Cookie needs to be added...
CkHttp_SetRequestHeader(http,'Cookie','JSESSIONID=1234');

//  Add the Content-Encoding: identity header.
CkHttp_SetRequestHeader(http,'Content-Encoding','identity');

//  Modify the default "Accept" header:
CkHttp_putAccept(http,'application/jsonrequest');

jsonText := '{"user":"doctoravatar@penzance.com","forecast":7,"t":"vlIj","zip":94089}';

//  IMPORTANT: Make sure to change the URL, JSON text,
//  and other data items to your own values.  The URL used
//  in this example will not actually work.

resp := CkHttpResponse_Create();
success := CkHttp_HttpStr(http,'PUT','http://json.penzance.org/request',jsonText,'utf-8','application/jsonrequest',resp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

Memo1.Lines.Add('Response status code: ' + IntToStr(CkHttpResponse_getStatusCode(resp)));
Memo1.Lines.Add('Response JSON:');
Memo1.Lines.Add(CkHttpResponse__bodyStr(resp));

CkHttpRequest_Dispose(req);
CkHttp_Dispose(http);
CkHttpResponse_Dispose(resp);