Delphi-GoogleFirebase-HTTP

您的Delphi代码未Authentication正确分配请求标头.你需要改变这个:

IdHTTP.Request.CustomHeaders.Values['Authorization:key'] := 'AAAAYsnMbsY:APA91bEjYZK-xxxxxxx......';

相反:

IdHTTP.Request.CustomHeaders.Values['Authorization'] := 'key=AAAAYsnMbsY:APA91bEjYZK-xxxxxxx......';

您还应该将该IdHTTP.Request.BasicAuthentication属性设置为false.

除此之外,由于您将Request.Charset属性设置为UTF-8,因此您应该构造TStringStream匹配:

JsonToSend := TStringStream.Create(jsonString, TEncoding.UTF8);

话虽如此,请尝试以下代码:

uses
  System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
  FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs,
  FMX.Controls.Presentation, FMX.StdCtrls, FMX.ScrollBox, FMX.Memo,
  IdGlobal, IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient,
  IdHTTP, IdIOHandler, IdIOHandlerSocket, IdIOHandlerStack, IdSSL, IdSSLOpenSSL
  {$IFDEF IOS}
  , IdSSLOpenSSLHeaders_Static
  {$ENDIF}
  ;

...

begin
  IdHTTP := TIdHTTP.Create(nil);
  try
    IdIOHandler := TIdSSLIOHandlerSocketOpenSSL.Create(IdHTTP);
    IdIOHandler.SSLOptions.Method := sslvSSLv23;
    IdHTTP.IOHandler := IdIOHandler;

    IdHTTP.Request.ContentType := 'application/json';
    IdHTTP.Request.Charset := 'UTF-8';
    IdHTTP.Request.CustomHeaders.Values['Authorization'] := 'key=AAAAYsnMbsY:APA91bEjYZK-xxxxxxx......';

    jsonString := '{"to" : "APA91bFJSdGW_yrX7p_TNKZ4k0OpdXTQM6xdd7BUsslk6zSvZlBmoAnfvyX-nBm4DYY-xxxxx......",' +
                   '"data" : {' +
                   '"Nick" : "Teste de Push",' +
                   '"body" : "Corpo do push",' +
                   '"Room" : "Apenas um teste"' +
                   '},}';
    JsonToSend := TStringStream.Create(jsonString, TEncoding.UTF8);
    try
      response := IdHTTP.Post('https://fcm.googleapis.com/fcm/send', JsonToSend);
      response := response.Replace(#10, '');
    except
      on E: EIdHTTPProtocolException do
        response := e.ErrorMessage;
    end;
    Memo1.Lines.Insert(0, response);
  finally
    IdHTTP.Free;
  end;
end;