I'm trying to write a wrapper around an api my company is developing. It's restful, and using Postman I can send a post request to an endpoint like http://subdomain.dev.myapi.com/api/v1/auth/ with a username and password as POST data and I am given back a token. All works as expected. Now, when I try and do the same from PHP I get back a GuzzleHttp\Psr7\Response object, but can't seem to find the token anywhere inside it as I did with the Postman request.
The relevant code looks like:
$client = new Client(['base_uri' => 'http://companysub.dev.myapi.com/']);
$response = $client->post('api/v1/auth/', [
'form_params' => [
'username' => $user,
'password' => $password
]
]);
var_dump($response); //or $resonse->getBody(), etc...
The output of the code above looks something like (warning, incoming wall of text):
object(guzzlehttp\psr7\response)#36 (6) {
["reasonphrase":"guzzlehttp\psr7\response":private]=>
string(2) "ok"
["statuscode":"guzzlehttp\psr7\response":private]=>
int(200)
["headers":"guzzlehttp\psr7\response":private]=>
array(9) {
["connection"]=>
array(1) {
[0]=>
string(10) "keep-alive"
}
["server"]=>
array(1) {
[0]=>
string(15) "gunicorn/19.3.0"
}
["date"]=>
array(1) {
[0]=>
string(29) "sat, 30 may 2015 17:22:41 gmt"
}
["transfer-encoding"]=>
array(1) {
[0]=>
string(7) "chunked"
}
["content-type"]=>
array(1) {
[0]=>
string(16) "application/json"
}
["allow"]=>
array(1) {
[0]=>
string(13) "post, options"
}
["x-frame-options"]=>
array(1) {
[0]=>
string(10) "sameorigin"
}
["vary"]=>
array(1) {
[0]=>
string(12) "cookie, host"
}
["via"]=>
array(1) {
[0]=>
string(9) "1.1 vegur"
}
}
["headerlines":"guzzlehttp\psr7\response":private]=>
array(9) {
["connection"]=>
array(1) {
[0]=>
string(10) "keep-alive"
}
["server"]=>
array(1) {
[0]=>
string(15) "gunicorn/19.3.0"
}
["date"]=>
array(1) {
[0]=>
string(29) "sat, 30 may 2015 17:22:41 gmt"
}
["transfer-encoding"]=>
array(1) {
[0]=>
string(7) "chunked"
}
["content-type"]=>
array(1) {
[0]=>
string(16) "application/json"
}
["allow"]=>
array(1) {
[0]=>
string(13) "post, options"
}
["x-frame-options"]=>
array(1) {
[0]=>
string(10) "sameorigin"
}
["vary"]=>
array(1) {
[0]=>
string(12) "cookie, host"
}
["via"]=>
array(1) {
[0]=>
string(9) "1.1 vegur"
}
}
["protocol":"guzzlehttp\psr7\response":private]=>
string(3) "1.1"
["stream":"guzzlehttp\psr7\response":private]=>
object(guzzlehttp\psr7\stream)#27 (7) {
["stream":"guzzlehttp\psr7\stream":private]=>
resource(40) of type (stream)
["size":"guzzlehttp\psr7\stream":private]=>
null
["seekable":"guzzlehttp\psr7\stream":private]=>
bool(true)
["readable":"guzzlehttp\psr7\stream":private]=>
bool(true)
["writable":"guzzlehttp\psr7\stream":private]=>
bool(true)
["uri":"guzzlehttp\psr7\stream":private]=>
string(10) "php://temp"
["custommetadata":"guzzlehttp\psr7\stream":private]=>
array(0) {
}
}
}
The output from Postman was something like:
{
"data" : {
"token" "fasdfasf-asfasdfasdf-sfasfasf"
}
}
Clearly I'm missing something about working with the response objects in Guzzle. The Guzzle response indicates a 200 status code on the request, so I'm not sure exactly what I need to do to retrieve the returned data.
Guzzle implements PSR-7. That means that it will by default store the body of a message in a Stream that uses PHP temp streams. To retrieve all the data, you can use casting operator:
$contents = (string) $response->getBody();
You can also do it with
$contents = $response->getBody()->getContents();
The difference between the two approaches is that getContents returns the remaining contents, so that a second call returns nothing unless you seek the position of the stream with rewind or seek .
$stream = $response->getBody();
$contents = $stream->getContents(); // returns all the contents
$contents = $stream->getContents(); // empty string
$stream->rewind(); // Seek to the beginning
$contents = $stream->getContents(); // returns all the contents
Instead, usings PHP's string casting operations, it will reads all the data from the stream from the beginning until the end is reached.
$contents = (string) $response->getBody(); // returns all the contents
$contents = (string) $response->getBody(); // returns all the contents
Documentation: http://docs.guzzlephp.org/en/latest/psr7.html#responses
If expecting JSON back, the simplest way to get it:
$data = json_decode($response->getBody()); // returns an object
// OR
$data = json_decode($response->getBody(), true); // returns an array
json_decode() will automatically cast the body to string, so there is no need to call getContents().
For get response in JSON format :
1.$response = (string) $res->getBody();
$response =json_decode($response); // Using this you can access any key like below
$key_value = $response->key_name; //access key
2. $response = json_decode($res->getBody(),true);
$key_value = $response['key_name'];//access key
Source: Stackoverflow.com