feat: add extended metrics metadata (#222)

Co-authored-by: Rikudou_Sage <[email protected]>

src/Client/DefaultRegistrationService.php

@@ -57,6 +57,10 @@ public function register(iterable $strategyHandlers): bool
                 'strategies' => array_map(fn (StrategyHandler $strategyHandler): string => $strategyHandler->getStrategyName(), $strategyHandlers),
                 'started' => (new DateTimeImmutable())->format('c'),
                 'interval' => $this->configuration->getMetricsInterval(),
+                'platformName' => PHP_SAPI,
+                'platformVersion' => PHP_VERSION,
+                'yggdrasilVersion' => null,
+                'specVersion' => Unleash::SPECIFICATION_VERSION,
             ], JSON_THROW_ON_ERROR)));
         foreach ($this->configuration->getHeaders() as $name => $value) {
             $request = $request->withHeader($name, $value);

src/Metrics/DefaultMetricsSender.php

@@ -8,6 +8,7 @@
 use Psr\Http\Message\RequestFactoryInterface;
 use Unleash\Client\Configuration\UnleashConfiguration;
 use Unleash\Client\Helper\StringStream;
+use Unleash\Client\Unleash;
 
 final readonly class DefaultMetricsSender implements MetricsSender
 {
@@ -32,6 +33,10 @@ public function sendMetrics(MetricsBucket $bucket): void
                 'appName' => $this->configuration->getAppName(),
                 'instanceId' => $this->configuration->getInstanceId(),
                 'bucket' => $bucket->jsonSerialize(),
+                'platformName' => PHP_SAPI,
+                'platformVersion' => PHP_VERSION,
+                'yggdrasilVersion' => null,
+                'specVersion' => Unleash::SPECIFICATION_VERSION,
             ], JSON_THROW_ON_ERROR)));
         foreach ($this->configuration->getHeaders() as $name => $value) {
             $request = $request->withHeader($name, $value);

src/Repository/DefaultUnleashRepository.php

@@ -34,6 +34,7 @@
 use Unleash\Client\Exception\HttpResponseException;
 use Unleash\Client\Exception\InvalidValueException;
 use Unleash\Client\Helper\Url;
+use Unleash\Client\Unleash;
 
 /**
  * @phpstan-type ConstraintArray array{
@@ -511,7 +512,7 @@ private function fetchFeatures(): array
                 ->createRequest('GET', (string) Url::appendPath($this->configuration->getUrl(), 'client/features'))
                 ->withHeader('UNLEASH-APPNAME', $this->configuration->getAppName())
                 ->withHeader('UNLEASH-INSTANCEID', $this->configuration->getInstanceId())
-                ->withHeader('Unleash-Client-Spec', '4.3.2');
+                ->withHeader('Unleash-Client-Spec', Unleash::SPECIFICATION_VERSION);
 
             foreach ($this->configuration->getHeaders() as $name => $value) {
                 $request = $request->withHeader($name, $value);

src/Unleash.php

@@ -9,6 +9,8 @@ interface Unleash
 {
     public const string SDK_VERSION = '2.5.1';
 
+    public const string SPECIFICATION_VERSION = '4.3.2';
+
     public function isEnabled(string $featureName, ?Context $context = null, bool $default = false): bool;
 
     public function getVariant(string $featureName, ?Context $context = null, ?Variant $fallbackVariant = null): Variant;