Bdtjtk

first of all I want to apologize if there is some mistakes in my post I'm not a native english (french).
So I'm facing a problem trying to connect myself to a websocket with a wss:// domain. The domain is this one : wss://engine.coss.io/api/v1/ws/v1/ht/{ETH_BTC}.
the last part of the URL is a king of query string you can find the detail of this at : https://api.coss.io/v1/spec

First of all I tried to connect to this adresse through chrome but I get the error "ERR_DISALLOWED_URL_SCHEME" and I found that is was related to some sort of missing certificates.
But my goal was to make it work with php so I tried several ways to connect to this adress but nothing worked this is one of the way I tried to connect to it :

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);

echo $socket;

echo socket_connect($socket ,"35.198.217.124",443)?"true":"false";





$in = "GET / HTTP/1.1rn";

$in .= "Host: www.example.comrn";

$in .= "Connection: Closernrn";

$out = '';



echo "Sending HTTP GET request...";

socket_write($socket, $in, strlen($in));

echo "OK.n";



echo "Reading response:nn";

while ($out = socket_read($socket, 2048)) {

echo $out;

}

Thank you for any help :)
Happy New Year !

EDIT :

After multiples try I get to this situation where I have two pieces of code on getting 200 responce on the root of the machine but definitely not what I want and the second one which get 400 error bad request the two pieces of code are right here :

the 200 response on the root (note that if I add /api to the path I get 404 error):

$contextOptions = array(

    'ssl' => array(

        "verify_peer" => false,

        "verify_peer_name" => false

    )

);

$context = stream_context_create($contextOptions);



$fp = stream_socket_client("ssl://engine.coss.io:443", $errstr, $errno, 30, STREAM_CLIENT_CONNECT, $context);

if (!$fp) {

    echo "$errstr ($errno)<br />n";

} else {

    echo "truen";



    fwrite($fp, "GET / HTTP/1.1rn" .

        "Host: www.engine.coss.iorn" .

        "Accept: */*rn" .

        "Connection: Upgradern" .

        "Upgrade: websocketrnrn");

    while (!feof($fp)) {

        echo fgets($fp, 1024);

    }

    fclose($fp);

}

And this one gives me a 400 bad Request :

$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);

echo $socket;

echo socket_connect($socket ,"35.198.217.124",443)?"true":"false";





$in = "GET /api/v1/ws/v1/ht/{ETH_BTC} HTTP/1.1rn";

$in .= "Host: https://www.engine.coss.iornAccept: */*rnConnection: UpgradernUpgrade: websocketrnrn";

//$in .= "Connection: Closernrn";

$out = '';



echo "Sending HTTP GET request...";

socket_write($socket, $in, strlen($in));

echo "OK.n";



echo "Reading response:nn";

while ($out = socket_read($socket, 2048)) {

echo $out;

}

EDIT 2 :

So I email the support of the website they told me that there was a mistake on the URL, the right one is : wss://engine.coss.io/ws/v1/ht/{ETH_BTC}

This seems to work with this code because I get a 101 successful handshake but the problem now is that the script ends once the handshake is successful so I never get the informations I want, maybe there is a way to keep the script listening throught the websocket ? I didn't find anything in the documentation ...

code :

$contextOptions = array(

    'ssl' => array(

        "verify_peer"=>false,

        "verify_peer_name"=>false

    )

);

$context = stream_context_create($contextOptions);



$fp =stream_socket_client("ssl://engine.coss.io:443/ws/v1/ht/{COSS_ETH}",$errstr,$errno,30,STREAM_CLIENT_CONNECT,$context);

if (!$fp) {

    echo "$errstr ($errno)<br />n";

} else {

echo "truen";







fwrite($fp, "GET /ws/v1/ht/{COSS_ETH} HTTP/1.1rnHost: engine.coss.iornAccept: */*rnConnection: UpgradernUpgrade: websocketrnSec-WebSocket-Version: 13rnSec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==rnrn");

    // Notez que si ici je rajoute au path /api/v1/ws/v1/ht/{ETH_BTC} j'obtiens une erreur 404 not found ...



    while (!feof($fp)) {



        echo fgets($fp, 2024);



    }

}

The 'wss://' stream is not supported by PHP by default, but you can implement your own 'wss://' StreamWrapper class.

Here's an example. Changing 'var' into 'wss' in stream_wrapper_register() will get you started.

http://php.net/manual/en/stream.streamwrapper.example-1.php

Here are all the methods you can implement in your StreamWrapper class, but you probably won't need them all.

http://php.net/manual/en/class.streamwrapper.php

Good luck!

I've made your second code block working (the one with stream_context_create()).
The code below retrieves the exchange rate between ETH and BTC.
I don't think you need to implement wss:// anymore, because their api seems also be available on https://

$contextOptions = array(

    'ssl' => array(

        "verify_peer" => false,

        "verify_peer_name" => false

    )

);

$context = stream_context_create($contextOptions);



$fp = stream_socket_client("ssl://engine.coss.io:443", $errstr, $errno, 30, STREAM_CLIENT_CONNECT, $context);

if (!$fp) {

    echo "$errstr ($errno)<br />n";

} else {

    echo "truen";



    fwrite($fp, "GET /api/v1/dp?symbol=ETH_BTC  HTTP/1.1rn" .

        "Host: engine.coss.iorn" .

        "Accept: */*rn" .

        "Connection: Upgradern" .

        "Upgrade: websocketrnrn");

    while (!feof($fp)) {

        echo fgets($fp, 1024);

    }

    fclose($fp);

}

returns:

{"symbol":"ETH_BTC","asks":[["0.03698000","0.12000000"],["0.03705000","0.12000000"],["0.03715000","0.12000000"], .....