Close #18. Added Feature Endpoint

lib/BlockCypher/Client/BlockchainClient.php

@@ -58,4 +58,35 @@ public function get($name, $params = array(), $apiContext = null, $restCall = nu
         $ret->fromJson($json);
         return $ret;
     }
+
+    /**
+     * Obtain the information about the adoption of upgrade features on a blockchain.
+     *
+     * @param string $featureName
+     * @param array $params Parameters. Options: txstart, and limit
+     * @param ApiContext $apiContext is the APIContext for this call. It can be used to pass dynamic configuration and credentials.
+     * @param BlockCypherRestCall $restCall is the Rest Call Service that is used to make rest calls
+     * @return string
+     */
+    public function getFeature($featureName, $params = array(), $apiContext = null, $restCall = null)
+    {
+        ArgumentValidator::validate($featureName, 'featureName');
+        ArgumentGetParamsValidator::validate($params, 'params');
+        $allowedParams = array();
+        $params = ArgumentGetParamsValidator::sanitize($params, $allowedParams);
+
+        $payLoad = "";
+
+        $chainUrlPrefix = $this->getChainUrlPrefix($apiContext);
+
+        $json = $this->executeCall(
+            "$chainUrlPrefix/feature/$featureName?" . http_build_query($params),
+            "GET",
+            $payLoad,
+            null,
+            $apiContext,
+            $restCall
+        );
+        return $json;
+    }
 }

release_notes.md

@@ -1,6 +1,10 @@
 BlockCypher PHP SDK release notes
 =================================
 
+v1.4.0
+------
+* Close #18. Added Feature Endpoint.
+
 v1.3.1
 ------
 * Fix #12. Added missing allowed params in GET params validation.

sample/chain-api/GetFeature.php

@@ -0,0 +1,18 @@
+<?php
+
+// # Get Blockchain Feature Status
+//
+// API called: '/v1/btc/main/feature/$NAME'
+
+require __DIR__ . '/../bootstrap.php';
+
+$blockchainClient = new \BlockCypher\Client\BlockchainClient($apiContexts['BTC.main']);
+
+try {
+    $feature = $blockchainClient->getFeature('bip65');
+} catch (Exception $ex) {
+    ResultPrinter::printError("Get Feature", "", "", null, $ex);
+    exit(1);
+}
+
+ResultPrinter::printResult("Get Feature", "", "", null, $feature);