I am unable to send a parameter to a GET method of an API using the PHP Curl

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Hello, I am trying to use Curl to consume an API where there is a method that receives a string as parameter. This method in the API is configured as GET, so it will receive this parameter validate it within the function and return me other information I need.

Take a look at the code:

public function ValidateStudents() {

    $url = "http://apialuno.apis.com/equipes/ValidarAlunos";

    $ch = curl_init();

    $ras = array(
        'ra' => '2013124007,1645948456,2016292895,2017193789'
    );

    curl_setopt($ch, CURLOPT_URL,            $url );
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
    curl_setopt($ch, CURLOPT_POST,           1 );
    curl_setopt($ch, CURLOPT_POSTFIELDS,     $ras); 
    curl_setopt($ch, CURLOPT_HTTPHEADER,     array('Content-Type: application/json')); 

    $result = curl_exec($ch);
}

The parameter I commented on is this ras that is in an array. It returns empty. In Postman I managed to use normally, I called the API and in body I put like this:

{
"ra":"2013124007,1645948456,2016292895,2017193789"
}

And when I send by Postman he returns this json:

[
{
    "ra": 2013124007,
    "nome": "WENDER LUI CAMPOS DA SILVA"
},
{
    "ra": 1645948456,
    "nome": "Não encontrado"
},
{
    "ra": 2016292895,
    "nome": "Aluno já pertence a outra equipe"
},
{
    "ra": 2017193789,
    "nome": "Aluno já pertence a outra equipe"
}
]

I need to have this same return that I had in Postman in the php variable in order to work with the data later. If anyone knows how to fix this I’ll be very grateful!

php api curl get postman

  • You want to know how to consume this api within Curl, as far as I know it’s just that: $variavel_que_recebe = json_decode($result); you can use file_get_contents() : see here at documentary. also , need not be curl.

  • Thus passes the ras ['ra' => ['2013124007,1645948456,2016292895,2017193789']]

  • I haven’t been able to yet, n I’m able to send the body that are the ras by parameter. By file_get_contents tbm it didn’t work.

  • From what I understood, such doing a search using the POST method sending the parameters as body and with that you have the return of JSON. Your JSON must send as a body when consuming the address data. This address should help https://forum.imasters.com.br/topic/563902-enviar-json-no-body-com-curl/

  • How I can pass JSON on body, can write an example code?

1 answer

0

The problem is that your request is not a valid JSON. You are trying to use JSON, as set in:

curl_setopt($ch, CURLOPT_HTTPHEADER,     array('Content-Type: application/json'));

Then you should use the json_encode when sending the request, since you have not done this before:

curl_setopt($ch, CURLOPT_POSTFIELDS,     json_encode($ras));

Anyway, this would work:

public function ValidateStudents() {

    $url = "http://apialuno.apis.com/equipes/ValidarAlunos";

    $ch = curl_init();

    $ras = array(
        'ra' => '2013124007,1645948456,2016292895,2017193789'
    );

    curl_setopt($ch, CURLOPT_URL,            $url );
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
    curl_setopt($ch, CURLOPT_POST,           1 );
    curl_setopt($ch, CURLOPT_POSTFIELDS,     json_encode($ras)); 
    curl_setopt($ch, CURLOPT_HTTPHEADER,     array('Content-Type: application/json')); 

    $result = curl_exec($ch);
}

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