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handle-exception

Handle-exception is a official middleware for handling exceptions in APIs developed with the Horse framework.
We created a channel on Telegram for questions and support:

⭕ Prerequisites

jhonson - Jhonson is a official middleware for working with JSON in APIs developed with the Horse framework.

Obs: If you use Boss (dependency manager for Delphi), the jhonson will be installed automatically when installing handle-exception.

⚙️ Installation

Installation is done using the boss install command:

boss install handle-exception

If you choose to install manually, simply add the following folders to your project, in Project > Options > Resource Compiler > Directories and Conditionals > Include file search path

../handle-exception/src

✔️ Compatibility

This middleware is compatible with projects developed in:

  • Delphi
  • Lazarus

⚡️ Quickstart Delphi

uses 
  Horse, 
  Horse.Jhonson, // It's necessary to use the unit
  Horse.HandleException, // It's necessary to use the unit
  System.JSON;

begin
  // It's necessary to add the middlewares in the Horse:
  THorse
    .Use(Jhonson) // It has to be before the exceptions middleware
    .Use(HandleException);

  THorse.Post('/ping',
    procedure(Req: THorseRequest; Res: THorseResponse; Next: TProc)
    begin
      // Manage your exceptions:
      raise EHorseException.New.Error('My Error!');
    end);

  THorse.Listen(9000);
end;

⚡️ Quickstart Lazarus

{$MODE DELPHI}{$H+}

uses
  {$IFDEF UNIX}{$IFDEF UseCThreads}
  cthreads,
  {$ENDIF}{$ENDIF}
  Horse,
  Horse.Jhonson, // It's necessary to use the unit
  Horse.HandleException, // It's necessary to use the unit
  SysUtils;

procedure GetPing(Req: THorseRequest; Res: THorseResponse; Next: TNextProc);
begin
  // Manage your exceptions:
  raise EHorseException.New.Error('My Error!');
end;

begin
  // It's necessary to add the middlewares in the Horse:
  THorse
    .Use(Jhonson) // It has to be before the exceptions middleware
    .Use(HandleException);

  THorse.Get('/ping', GetPing);

  THorse.Listen(9000);
end.

⚠️ License

handle-exception is free and open-source middleware licensed under the MIT License.