Florentino Florentino - 2 months ago 18
JSON Question

PHP: Using API key in CURL GET Call

I have seen the post for using api key for authenticating post calls in curl. I have a GET call that requires apikey for authorization i.e the request must have an authorization header cantaining the apiKey. I have obtained the api key and try to use it for a GET call :

<?php

$service_url = 'http://localhost/finals/task_manager/v1/tasks/Authorization:'.$apiKey;
$curl = curl_init($service_url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
$curl_response = curl_exec($curl);
if ($curl_response === false) {
$info = curl_getinfo($curl);
curl_close($curl);
die('error occured during curl exec. Additioanl info: ' . var_export($info));
}

curl_close($curl);
$decoded1 = json_decode($curl_response,true);
if (isset($decoded1->response->status) && $decoded1->response->status == 'ERROR') {
die('error occured: ' . $decoded1->response->errormessage);
}
echo 'response ok!';
var_export($decoded1->response);
?>


I am getting error in json response:

{"error":true,"message":"Api key is misssing"}


I have tried a few other ways like passing a header array but i keep getting the error.
How to correctly get the curl_response ? How should I pass the Authorization header which uses the api key ?

The api for the get call I am making is (created using Slim Library) :

index.php
/**
* Listing all tasks of particual user
* method GET
* url /tasks
*/
$app->get('/tasks', 'authenticate', function() {
global $user_id;
$response = array();
$db = new DbHandler();

// fetching all user tasks
$result = $db->getAllUserTasks($user_id);

$response["error"] = false;
$response["tasks"] = array();

// looping through result and preparing tasks array
while ($task = $result->fetch_assoc()) {
$tmp = array();
$tmp["id"] = $task["id"];
$tmp["task"] = $task["task"];
$tmp["status"] = $task["status"];
$tmp["createdAt"] = $task["created_at"];
array_push($response["tasks"], $tmp);
}

echoRespnse(200, $response);
});


The authenticate function is :

in the same index.php file
/**
* Adding Middle Layer to authenticate every request
* Checking if the request has valid api key in the 'Authorization' header
*/
function authenticate(\Slim\Route $route) {
// Getting request headers
$headers = apache_request_headers();
$response = array();
$app = \Slim\Slim::getInstance();

// Verifying Authorization Header
if (isset($headers['Authorization'])) {
$db = new DbHandler();

// get the api key
$api_key = $headers['Authorization'];
// validating api key
if (!$db->isValidApiKey($api_key)) {
// api key is not present in users table
$response["error"] = true;
$response["message"] = "Access Denied. Invalid Api key";
echoRespnse(401, $response);
$app->stop();
} else {
global $user_id;
// get user primary key id
$user = $db->getUserId($api_key);
if ($user != NULL)
$user_id = $user["id"];
}
} else {
// api key is missing in header
$response["error"] = true;
$response["message"] = "Api key is misssing";
echoRespnse(400, $response);
$app->stop();
}
}

Answer

ok so it should be pretty straightforward... Could you try and add:

curl_setopt($curl, CURLOPT_HTTPHEADER, array(
'Authorization: ' . $apiKey
));

to your curl? After that, do a print_r($headers) in your authenticate() function to see if you receive it ok.