[SOLVED] Verbs HTTP
lazarus / 38-Networking and Web Programming

----------------------------------------------------------------------
Almir Lima · 2019-05-25 16:25

Hy everyone,
I want send others verbs in HTTP like PUT PATCH DELETE with Synapse,
but i cannot find.

----------------------------------------------------------------------
Almir Lima · 2019-05-26 01:59

The goal is do a API and use all RESTFUL verbs.
GET, POST, PUT, PATCH, DELETE, OPTIONS.

I solved this creating a clone function of the Synapse HttpSend with a
little modify: "A option for alter the Verbs to send a request."

I tested  in NodeJS, and everything worked perfect.

This the code.

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i function
Http_Send(const Verb, URL: string; const Data: TStream  ):
Boolean;var  HTTP: THTTPSend;begin  HTTP := THTTPSend.Create;  try   
HTTP.Document.CopyFrom(Data, 0);    HTTP.MimeType :=
'Application/octet-stream';    Result := HTTP.HTTPMethod( Verb, URL); 
  Data.Size := 0;    if Result then    begin      Data.Seek(0,
soFromBeginning);      Data.CopyFrom(HTTP.Document, 0);    end; 
finally    HTTP.Free;  end;end;

----------------------------------------------------------------------
lucamar · 2019-05-26 07:27

A friendly reminder: When talking about networking you should have a
care how you use the terminology, lest confussion arises.

Those "verbs" you talk about have little to do with RESTful APIs, but
with WEBDAV. See here: WebDAV Ressources.

Also, if you want to build a generic solution you should add a
functions to send multipart- in addition to URL-encoded  requests.
Most Web APIs I know of expect them, since they deal with relatively
big objects (documents, images, etc.) that can't be encoded in the
URL.

For example, here's how we defined some net-helpers when we built our
(Delphi) Flickr API objects:
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i { Calls to
Web Sites' APIs like p.e. Flickr's }{HTTP service request--url-encoded
params Make a request using HTTP Method, passing
parameters @code(Params) in url-encoded form. }function
WebMethodCall(const BaseURL: String; Params: TStrings;               
      Method: TReqMethod = rqPost): String; overload;{HTTP service
request--w/out params Make a request using HTTP Method passing no
parameters (unless already encoded by the user in
@code(BaseURL).}function WebMethodCall(const BaseURL: String;        
             Method: TReqMethod = rqPost): String; overload;{HTTP
service request--Multipart/Form-Data Make a request using HTTP POST
and passing parameters as a Multipart/Form-Data stream. Used,
generally, to upload a file to a server. }function WebMethodCall(const
BaseURL: String;                       FormData:
TIdMultiPartFormDataStream): String; overload;