Dismiss Notice

REGISTRATION IS AFTER ADMIN ACTIVATION

DONATIONS WITH PAYPAL CLICK TO BUTTON

1 MONTH VIP - 5$; 3 MONTHS VIP - 10$; 6 MONTHS VIP - 20$; 1 YEAR VIP - 30$; 2 YEARS VIP - 50$; GOLD USER FOR LIFE VIP - 150$

DONATIONS WITH Bitcoin Address:3NRs3CK3fhXifrNYxHEZKpETDd9vNLMsMD

Dismiss Notice
The registration is approved by the Administrator. It takes about 1 day to approve your registration
Dismiss Notice
For open hidden message no need write thanks, thank etc. Enough is click to like button on right side of thread.

SOAP and REST – Using GZip with Delphi client

Discussion in 'Delphi Programming' started by N0body, May 29, 2014.

  1. N0body
    Online

    N0bodyN0body is a Verified Member DelphiFan Administrator Staff Member DF Staff

    We are deciding between SOAP and REST. I’ve implemented client applications in Delphi using GZip. It is a very simple implementation and it brings a great result. The larger the volume of data, greater the difference using GZip compression. The bandwidth is also a factor that influences a lot.  Let’s see the implementations.


    REST with GZIP

    Implementation of compression with REST is extremely simple. It’s just a matter of correctly setting the “Compressor” attribute of the  TIDHttp component. I’m using TIdCompressorZLib.

    Code:
    IdHttp := TIdHTTP.Create(nil);
    IdHttp.Compressor := TIdCompressorZLib.Create(IdHttp);
    NOTE: This does not work in Delphi XE2. Access violation occurs. Works in XE3.

    SOAP with GZIP

    Implementation with SOAP is a bit more complicated. For my tests I used the THTTPrio component events.

    Code:
    procedure HTTPRIOHTTPWebNode1BeforePost(const HTTPReqResp: THTTPReqResp; 
      Data: Pointer);
    const
      INTERNET_OPTION_HTTP_DECODING = 65;
      contentEncodingHeader = 'Accept-Encoding: gzip, deflate';
    var
      Flag: LongBool;
    begin
      Flag := True;
      HttpAddRequestHeaders(Data, PChar(contentEncodingHeader), 
        Length(contentEncodingHeader), HTTP_ADDREQ_FLAG_ADD);
      InternetSetOption(Data, INTERNET_OPTION_HTTP_DECODING, 
        PChar(@Flag), SizeOf(Flag));
    end;

    Benchmarks

    These tests were done in order to compare the implementation of SOAP and REST.  I used the framework developed by a brazilian programmer, Fabricio Colombo, the Delphi REST Client API. Tests were performed with a bandwidth limited to 512 Kbps. Information is in milliseconds.

    [​IMG]
    [​IMG]
     
  2. yosoy2014
    Offline

    yosoy2014 DF Junior

    thanks master :)
     
  3. pippos
    Offline

    pippos DF Member

    Grazie
     
  4. aa2jx
    Offline

    aa2jx DF Member

    great, very good
     
  5. kinddie
    Offline

    kinddie Guest

    goood
     
  6. sicmy
    Offline

    sicmy DF Junior

    thankyou
     
  7. adisaks
    Offline

    adisaks DF Member

  8. hugorn
    Offline

    hugorn Guest

    Nice code.
     
  9. vcorp
    Online

    vcorp DF Junior

    Thanks for sharing.
     
  10. JoSyl
    Offline

    JoSyl DF Member

    Good idea ! Thanks for sharing !
     
  11. scubarazor
    Offline

    scubarazor DF Junior

  12. DelphiDad
    Offline

    DelphiDad DF Junior

    Very nice speed test comparison.
    This GZip seems to be very usefull when sending/receiving large files.
    When using SOAP you could also play with MaxSinglePostSize=15px settings, but you have to open the pipes on the both sides.

    It looks like REST is rising up very quick with new versions of Delphi.

    Expecially Enterprice Mobility Servises (EMS) will significantly influence future REST coding and data handling. (My humble opinion)
     
  13. figura4
    Offline

    figura4 Guest

    Really useful bechmarks. Quite interesting the difference using SOAP between Delphi and Java, while using REST the results are almost the same. I was trying to decide whether to use REST or SOAP for my upcoming new Delphi project. I'm new to both technologies so in light of the results, REST will be ;)
     
  14. rd3568
    Offline

    rd3568 Guest

    Thanks. 
     
  15. zerg1
    Offline

    zerg1 DF Member

    thank you
     
  16. ilanamlas1
    Offline

    ilanamlas1 Guest

    fine work
     
     

Share This Page

Laws
Our website, law, laws, copyright and aims to be respectful of individual rights. Our site, as defined in the law of 5651 serves as a provider of space. According to the law, contrary to the law of site management has no obligation to monitor content. Therefore, our site has adopted the principle of fit and remove. Works are subject to copyright laws and is shared in a manner that violated their legal rights, or professional associations, rights holders who, adsdelphi@gmail.com I can reach us at e-mail address. Complaints considered to be infringing on the examination of the content will be removed from our site.
Donate Help To Us and Be VIP
DONATIONS WITH PAYPAL CLICK TO BUTTON
6 MONTHS VIP - 20$; 1 YEAR VIP - 30$; 2 YEARS VIP - 50$; GOLD USER FOR LIFE VIP - 150$
Social Block