How do I configure default query parameters with Guzzle 6? - php

Question

Migrating from 5 to 6, and I've run into a snag and can't find the relevant docs.
Guzzle docs here, http://guzzle.readthedocs.io/en/latest/quickstart.html#creating-a-client, site that we can add "any number of default request options".
I want to send "foo=bar" with every request. E.g.:
$client = new Client([
'base_uri' => 'http://google.com',
]);
$client->get('this/that.json', [
'query' => [ 'a' => 'b' ],
]);
This will generate GET on http://google.com/this/that.json?a=b
How do I modify the client construction so that it yields:
http://google.com/this/that.json?foo=bar&a=b
Thanks for your help!

Answer 1

Alright, so far, this works here:
$extraParams = [
'a' => $config['a'],
'b' => $config['b'],
];
$handler = HandlerStack::create();
$handler->push(Middleware::mapRequest(function (RequestInterface $request) use ($extraParams) {
$uri = $request->getUri();
$uri .= ( $uri ? '&' : '' );
$uri .= http_build_query( $extraParams );
return new Request(
$request->getMethod(),
$uri,
$request->getHeaders(),
$request->getBody(),
$request->getProtocolVersion()
);
}));
$this->client = new Client([
'base_uri' => $url,
'handler' => $handler,
'exceptions' => false,
]);
If anyone knows how to make it less sinister-looking, I would say thank you!

Answer 2

I found a nice solution here.
Basically, anything defined in the first array of arguments, become part of the config for the client.
this means you can do this when initialising:
$client = new Client([
'base_uri' => 'http://google.com',
// can be called anything but defaults works well
'defaults' => [
'query' => [
'foo' => 'bar',
]
]
]);
Then, when using the client:
$options = [
'query' => [
'nonDefault' => 'baz',
]
];
// merge non default options with default ones
$options = array_merge_recursive($options, $client->getConfig('defaults'));
$guzzleResponse = $client->get('this/that.json', $options);
It's woth noting that the array_merge_recursive function appends to nested arrays rather than overwrites. If you plan on changing a default value, you'll need a different utility function. It works nicely when the default values are immutable though.

Answer 3

A "less sinister-looking" example based on the answer by #Saeven and the comment from #VladimirPak.
$query_defaults = [
'a' => $config['a'],
'b' => $config['b'],
];
$handler = \GuzzleHttp\HandlerStack::create();
$handler->push(\GuzzleHttp\Middleware::mapRequest(function (\Psr\Http\Message\RequestInterface $request) use ($query_defaults) {
$query = \GuzzleHttp\Psr7\Query::parse($request->getUri()->getQuery());
$query = array_merge($query_defaults, $query);
return $request->withUri($request->getUri()->withQuery(\GuzzleHttp\Psr7\Query::build($query)));
}));
$this->client = new \GuzzleHttp\Client([
'base_uri' => $url,
'handler' => $handler,
'exceptions' => false,
]);
I'm not sure how less sinister-looking it is though. lol

Answer 4

the solution proposed in github looks pretty ugly. This does not look much better, but at least is more readable and also works. I'd like feedback if anyone knows why should not be used:
$query = $uri . '/person/id?personid=' . $personid . '&name=' . $name;
return $result = $this->client->get(
$query
)
->getBody()->getContents();