Use (string) $body instead of $body->getContents() for getting contents from StreamInterface. (#2871)

because method `getContents()` only returns the remaining contents in a string.

Author: limingxinleo

src/Client.php

@@ -63,7 +63,7 @@ public function get($uri, $data = [], $headers = [])
             'query' => $data,
         ]);
 
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function post($uri, $data = [], $headers = [])
@@ -73,7 +73,7 @@ public function post($uri, $data = [], $headers = [])
             'form_params' => $data,
         ]);
 
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function put($uri, $data = [], $headers = [])
@@ -83,7 +83,7 @@ public function put($uri, $data = [], $headers = [])
             'form_params' => $data,
         ]);
 
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function delete($uri, $data = [], $headers = [])
@@ -93,7 +93,7 @@ public function delete($uri, $data = [], $headers = [])
             'query' => $data,
         ]);
 
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function json($uri, $data = [], $headers = [])
@@ -103,7 +103,7 @@ public function json($uri, $data = [], $headers = [])
             'headers' => $headers,
             'json' => $data,
         ]);
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function file($uri, $data = [], $headers = [])
@@ -129,7 +129,7 @@ public function file($uri, $data = [], $headers = [])
             'multipart' => $multipart,
         ]);
 
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function request(string $method, string $path, array $options = [])

src/HttpClient.php

@@ -57,7 +57,7 @@ public function get($uri, $data = [], $headers = [])
             'headers' => $headers,
             'query' => $data,
         ]);
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function post($uri, $data = [], $headers = [])
@@ -67,7 +67,7 @@ public function post($uri, $data = [], $headers = [])
             'form_params' => $data,
         ]);
 
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function json($uri, $data = [], $headers = [])
@@ -78,7 +78,7 @@ public function json($uri, $data = [], $headers = [])
             'headers' => $headers,
         ]);
 
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 
     public function file($uri, $data = [], $headers = [])
@@ -104,6 +104,6 @@ public function file($uri, $data = [], $headers = [])
             'multipart' => $multipart,
         ]);
 
-        return $this->packer->unpack($response->getBody()->getContents());
+        return $this->packer->unpack((string) $response->getBody());
     }
 }