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JESUS CORDOVA
Asked: 2022-08-26 04:49:08 +0800 CST 2022-08-26 04:49:08 +0800 CST

How to send parameters by POST with RESTREQUEST in Delphi

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I want to send the code and name variables by POST to a web service in php, I have this code in Delphi 10.4:

RESTRequest1.ClearBody;
//RESTRequest1.Body.Add... aquí iría lo del pase de parámetros
RESTRequest1.Method:= rmPOST;
RESTRequest1.Execute;

The idea is to receive it in php like this:

$codigo=isset($_POST['codigo']) ? $_POST['codigo'] : NULL;
$nombre=isset($_POST['nombre']) ? $_POST['nombre'] : NULL;

and thus be able to use that data sent.

another way would be to first build a JSON to pass it, I also did that like this:

content:='{'+
                    '  "usuario": "'+usuario+'",'+
                    '  "pass": "'+pass+'"'+
                    '}';
    RESTRequest1.ClearBody;
    RESTRequest1.Body.Add(content, TRESTContentType.ctAPPLICATION_JSON);
    RESTRequest1.Method:= rmPOST;
    RESTRequest1.Execute;

but content is just a set of data, that variable does not have a name so in php I cannot find the way to obtain it and use it can be in both ways, the first seems more practical to me but either of the two works for me. I am using Delphi RAD studio community edition 10.4

php

1 Answers

  1. Best Answer

    There are several ways to send data (or parameters) in the request, depending on how they must reach the Webservice in php.

    A simple way is to send them as parameters in the request header itself, using the component TRESTClientthat you must have. It would be a code similar to the one below:

    RESTRequest1.ClearBody;
RESTClient1.AddParameter('Usuario', var_usuario, pkHTTPHEADER);
RESTClient1.AddParameter('pass', var_pass, pkHTTPHEADER);
RESTRequest1.Method:= rmPOST;
RESTRequest1.Execute;

    Another option is to use the body to send the information, as you mentioned, using a JSON with the information. In that case you can use the Bodycomponent property TRESTRequest. You can try code similar to this:

    RESTRequest1.ClearBody;
RESTRequest1.Body.Add(sContent, TRESTContentType.ctAPPLICATION_JSON);
RESTRequest1.Method:= rmPOST;
RESTRequest1.Execute;

    Where sContentis the JSON(like the one you used in the question).

    To retrieve this last information in php (sent in the body) you can try something like this:

    $datosbody = json_decode(file_get_contents('php://input'), true);
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