CoinMarketCap Api offer a lot of data by making calls to different links. Every time you make a call it cost 1 credit and of course, if that call return 5,000 coins then it cost 25 credits. So, I can't make call to different link every minute. How can I make a call to at least 4 links such as:
https://pro-api.coinmarketcap.com/v1/cryptocurrency/trending/latest
https://pro-api.coinmarketcap.com/v1/cryptocurrency/trending/gainers-losers
https://pro-api.coinmarketcap.com/cryptocurrency/listings/latest?limit=5000
https://pro-api.coinmarketcap.com/v2/cryptocurrency/info
and here is the code that CoinMarketCap offer and it works (tested):
$url = 'https://pro-api.coinmarketcap.com/v1/cryptocurrency/listings/latest';
$parameters = [
'start' => '1',
'limit' => '5000',
'convert' => 'USD'
];
$headers = [
'Accepts: application/json',
'X-CMC_PRO_API_KEY: *********-****-****-****-***********'
];
$qs = http_build_query($parameters); // query string encode the parameters
$request = "{$url}?{$qs}"; // create the request URL
$curl = curl_init(); // Get cURL resource
//Set cURL options
curl_setopt_array($curl, array(
CURLOPT_URL => $request, // set the request URL
CURLOPT_HTTPHEADER => $headers, // set the headers
CURLOPT_RETURNTRANSFER => 1 // ask for raw response instead of bool
));
$response = curl_exec($curl); // Send the request, save the response
print_r(json_decode($response)); // print json decoded response
curl_close($curl); // Close request
you can use the curl_multi_init to handle the multiple curl request asynchronously. you can read here more about multi curl
Related
I tried my first API call but something is still wrong. I added my API-Key, choose the symbol and tried to echo the price. But it is still not valid. But my echo is still 0. Maybe someone show me what i did wrong. Thank you!
<?php
$coinfeed_coingecko_json = file_get_contents('https://pro-api.coinmarketcap.com/v1/cryptocurrency/listings/latest?symbol=ETH');
$parameters = [
'start' => '1',
'limit' => '2000',
'convert' => 'USD'
];
$headers = [
'Accepts: application/json',
'X-CMC_PRO_API_KEY: XXX'
];
$qs = http_build_query($parameters); // query string encode the parameters
$request = "{$url}?{$qs}"; // create the request URL
$curl = curl_init(); // Get cURL resource
// Set cURL options
curl_setopt_array($curl, array(
CURLOPT_URL => $request, // set the request URL
CURLOPT_HTTPHEADER => $headers, // set the headers
CURLOPT_RETURNTRANSFER => 1 // ask for raw response instead of bool
));
$response = curl_exec($curl); // Send the request, save the response
print_r(json_decode($response)); // print json decoded response
curl_close($curl); // Close request
$coinfeed_json = json_decode($coinfeed_coingecko_json, false);
$coinfeedprice_current_price = $coinfeed_json->data->{'1'}->quote->USD->price;
?>
<?php echo $coinfeedde = number_format($coinfeedprice_current_price, 2, '.', ''); ?>
API Doc: https://coinmarketcap.com/api/v1/#operation/getV1CryptocurrencyListingsLatest
There is a lot going on in your code.
First of all $url was not defined
Second of all you made two requests, one of which I have removed
Third; you can access the json object by $json->data[0]->quote->USD->price
Fourth; I removed the invalid request params
I have changed a few things to make it work:
$url = "https://pro-api.coinmarketcap.com/v1/cryptocurrency/listings/latest";
$headers = [
'Accepts: application/json',
'X-CMC_PRO_API_KEY: ___YOUR_API_KEY_HERE___'
];
$request = "{$url}"; // create the request URL
$curl = curl_init(); // Get cURL resource
// Set cURL options
curl_setopt_array($curl, array(
CURLOPT_URL => $request, // set the request URL
CURLOPT_HTTPHEADER => $headers, // set the headers
CURLOPT_RETURNTRANSFER => 1 // ask for raw response instead of bool
));
$response = curl_exec($curl); // Send the request, save the response
$json = json_decode($response);
curl_close($curl); // Close request
var_dump($json->data[0]->quote->USD->price);
var_dump($json->data[1]->quote->USD->price);
So my client needs a REST API using PHP that provides output as per the conditions on the URL parameters
So now there are three URL's basically which is currently needed and they are done.
so they are
localhost/newapi/client/<AuthKey> - for authorizing
localhost/newapi/client/<clientid>/categories/ - to get all the categories
localhost/newapi/client/<clientid>/categories/<categoryid> - to get all items in a category
used .htaccess for fancy URL
So now he requested that AuthKey need to be added to HTTP header not the URL. So the AuthKey must be passed as header and the rest as URL parameters
So my question is how this can be done. and how to retrieve the AuthKey from the request?
Any tutorials or comments regarding this question is welcome
you can tell the client when he request your api he add a header as below:
AuthKey: your-api-auth-key
or
Token: your-api-token
and then in your php code make
$headers = getallheaders();
$token = $headers['Token'] or ['AuthKey'];
then you check if the key in database and then process your code
Note:
your client can add Header with PHP cURL
curl_setopt($curl-handle, CURLOPT_HEADER, array(
'Token' => 'client-auth-token', //or
'AuthKey' => 'client-auth-token'
));
you can use this code to connect with rest in php
$url = 'localhost/newapi/client/';
$opts = array('http' =>
array(
'method' => 'POST',
'header' => "Content-Type: application/json\r\n"."Authorization: Basic ".<authkey>."\r\n",
'content' => $data,
'timeout' => 60
)
);
$context = stream_context_create($opts);
$result = file_get_contents($url, false, $context, -1, 40000);
return $result;
I'm trying to get together a basic example of how to use Google Closure to minify JS. I can't seem to get this to work at all.
I'm trying to follow these examples:
https://developers.google.com/closure/compiler/docs/gettingstarted_api
http://closure-compiler.appspot.com/home
When working on API's and/or AJAX code, the first thing I try to is get the variables and values setup properly using just Advanced Rest Client Applications - a Chrome Extension. Whenever I send this data, though, I get an empty response (image below).
Trying to insert the same code into my PHP code, no matter what I send in the $postData variable, I get an empty (null) response.
PHP Code:
$postData =
http_build_query(
[
'output_info' => 'compiled_code',
'output_format' => 'text',
'compilation_level' => 'SIMPLE_OPTIMIZATIONS',
'js_code' => urlencode("function hello(name) { // Greets the user alert('Hello, ' + name); } hello('New user');")
]
);
$ret = $this->ci->curl->simple_post(
$url,
$postData,
$options
);
var_dump($ret);
die();
Response:
string ' ' (length=1)
I'm 99% confident that I'm missing something to use the Closure API like a key or something, but I have no idea how to proceed.
After many, many, many attempts, I found that if I used rawurlencode() instead of urlencode(), it works. Here's the final function.
// use google closure to get compiled JS
$encoded = rawurlencode($js);
$postData =
'output_info=compiled_code&' .
'output_format=text&' .
'compilation_level=WHITESPACE_ONLY&' .
'js_code=' . $encoded
;
$options = [];
$call = curl_init();
curl_setopt_array(
$call,
array(
CURLOPT_URL => 'http://closure-compiler.appspot.com/compile',
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => $postData,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_HEADER => 0,
CURLOPT_FOLLOWLOCATION => 0
)
);
$jscomp = curl_exec($call);
return $jscomp;
I'm currently working on some automatization script in PHP (No HTML!).
I have two PHP files. One is executing the script, and another one receive $_POST data and returns information.
The question is how from one PHP script to send POST to another PHP script, get return variables and continue working on that first script without HTML form and no redirects.
I need to make requests a couple of times from first PHP file to another under different conditions and return different type of data, depending on request.
I have something like this:
<?php // action.php (first PHP script)
/*
doing some stuff
*/
$data = sendPost('get_info');// send POST to getinfo.php with attribute ['get_info'] and return data from another file
$mysqli->query("INSERT INTO domains (id, name, address, email)
VALUES('".$data['id']."', '".$data['name']."', '".$data['address']."', '".$data['email']."')") or die(mysqli_error($mysqli));
/*
continue doing some stuff
*/
$data2 = sendPost('what_is_the_time');// send POST to getinfo.php with attribute ['what_is_the_time'] and return time data from another file
sendPost('get_info' or 'what_is_the_time'){
//do post with desired attribute
return $data; }
?>
I think i need some function that will be called with an attribute, sending post request and returning data based on request.
And the second PHP file:
<?php // getinfo.php (another PHP script)
if($_POST['get_info']){
//do some actions
$data = anotherFunction();
return $data;
}
if($_POST['what_is_the_time']){
$time = time();
return $time;
}
function anotherFunction(){
//do some stuff
return $result;
}
?>
Thanks in advance guys.
Update: OK. the curl method is fetching the output of php file. How to just return a $data variable instead of whole output?
You should use curl. your function will be like this:
function sendPost($data) {
$ch = curl_init();
// you should put here url of your getinfo.php script
curl_setopt($ch, CURLOPT_URL, "getinfo.php");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$result = curl_exec ($ch);
curl_close ($ch);
return $result;
}
Then you should call it this way:
$data = sendPost( array('get_info'=>1) );
I will give you some example class , In the below example you can use this as a get and also post call as well. I hope this will help you.!
/*
for your reference . Please provide argument like this,
$requestBody = array(
'action' => $_POST['action'],
'method'=> $_POST['method'],
'amount'=> $_POST['amount'],
'description'=> $_POST['description']
);
$http = "http://localhost/test-folder/source/signup.php";
$resp = Curl::postAuth($http,$requestBody);
*/
class Curl {
// without header
public static function post($http,$requestBody){
$curl = curl_init();
// Set some options - we are passing in a useragent too here
curl_setopt_array($curl, array(
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => $http ,
CURLOPT_USERAGENT => 'From Front End',
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => $requestBody
));
// Send the request & save response to $resp
$resp = curl_exec($curl);
// Close request to clear up some resources
curl_close($curl);
return $resp;
}
// with authorization header
public static function postAuth($http,$requestBody,$token){
if(!isset($token)){
$resposne = new stdClass();
$resposne->code = 400;
$resposne-> message = "auth not found";
return json_encode($resposne);
}
$curl = curl_init();
$headers = array(
'auth-token: '.$token,
);
// Set some options - we are passing in a useragent too here
curl_setopt_array($curl, array(
CURLOPT_HTTPHEADER => $headers ,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => $http ,
CURLOPT_USERAGENT => 'From Front End',
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => $requestBody
));
// Send the request & save response to $resp
$resp = curl_exec($curl);
// Close request to clear up some resources
curl_close($curl);
return $resp;
}
}
I'm trying to connect an API that uses 0AUTH2 via PHP. The original plan was to use client-side JS, but that isn't possible with 0AUTH2.
I'm simply trying get a share count from the API's endpoint which is here:
https://api.bufferapp.com/1/links/shares.json?url=[your-url-here]&access_token=[your-access-key-here]
I do have a proper access_token that I am using to access the json file, that is working fine.
This is the code I have currently written, but I'm not even sure I'm on the right track.
// 0AUTH2 ACCESS TOKEN FOR AUTHENTICATION
$key = '[my-access-key-here]';
// JSON URL TO BE REQUESTED
$json_url = 'https://api.bufferapp.com/1/links/shares.json?url=http://bufferapp.com&access_token=' . $key;
// GET THE SHARE COUNT FROM THE REQUEST
$json_string = '[shares]';
// INITIALIZE CURL
$ch = curl_init( $json_url );
// CONFIG CURL OPTIONS
$options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array('Content-type: application/json') ,
CURLOPT_POSTFIELDS => $json_string
);
// SETTING CURL AOPTIONS
curl_setopt_array( $ch, $options );
// GET THE RESULTS
$result = curl_exec($ch); // Getting jSON result string
Like I said, I don't know if this is the best method - so I'm open to any suggestions.
I'm just trying to retrieve the share count with this PHP script, then with JS, spit out the share count where I need it on the page.
My apologies for wasting anyone's time. I have since been able to work this out. All the code is essentially the same - to test to see if you're getting the correct response, just print it to the page. Again, sorry to have wasted anyones time.
<?php
// 0AUTH2 ACCESS TOKEN FOR AUTHENTICATION
$key = '[your_access_key_here]';
// URL TO RETRIEVE SHARE COUNT FROM
$url = '[your_url_here]';
// JSON URL TO BE REQUESTED - API ENDPOINT
$json_url = 'https://api.bufferapp.com/1/links/shares.json?url=' . $url . ' &access_token=' . $key;
// GET THE SHARE COUNT FROM THE REQUEST
$json_string = '[shares]';
// INITIALIZE CURL
$ch = curl_init( $json_url );
// CONFIG CURL OPTIONS
$options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array('Content-type: application/json') ,
CURLOPT_POSTFIELDS => $json_string
);
// SETTING CURL AOPTIONS
curl_setopt_array( $ch, $options );
// GET THE RESULTS
$result = curl_exec($ch); // Getting jSON result string
print $result;
?>