Add getAttributes() and removeAttribute() to Request

docs/classes/request.md

@@ -130,6 +130,10 @@ If `$cookie` value is not valid, [`\Error`](http://php.net/manual/en/class.error
 
 Removes a cookie from the request.
 
+## `getAttributes(): array`
+
+Returns an array of all the attributes stored in the request's mutable local storage.
+
 ## `hasAttribute(string $name): bool`
 
 Check whether an attribute with the given name exists in the request's mutable local storage.
@@ -148,6 +152,10 @@ Assign a variable to the request's mutable local storage.
 {:.note}
 > Name of the attribute should be namespaced with a vendor and package namespace, like classes.
 
+## `removeAttribute(string $name): void`
+
+Removes a variable from the request's mutable local storage.
+
 ## `getTrailers(): Trailers`
 
 Allows access to the [`Trailers`](trailers.md) of a request.

src/Request.php

@@ -352,6 +352,14 @@ private function setHeadersFromCookies(): void
         $this->setHeader("cookie", $values);
     }
 
+    /**
+     * @return mixed[] An array of all request attributes in the request's mutable local storage, indexed by name.
+     */
+    public function getAttributes(): array
+    {
+        return $this->attributes;
+    }
+
     /**
      * Check whether a variable with the given name exists in the request's mutable local storage.
      *
@@ -378,6 +386,8 @@ public function hasAttribute(string $name): bool
      * @param string $name Name of the attribute, should be namespaced with a vendor and package namespace like classes.
      *
      * @return mixed
+     *
+     * @throws MissingAttributeError If an attribute with the given name does not exist.
      */
     public function getAttribute(string $name)
     {
@@ -409,6 +419,22 @@ public function setAttribute(string $name, $value): void
         $this->attributes[$name] = $value;
     }
 
+    /**
+     * Remove an attribute from the request's mutable local storage.
+     *
+     * @param string $name Name of the attribute, should be namespaced with a vendor and package namespace like classes.
+     *
+     * @throws MissingAttributeError If an attribute with the given name does not exist.
+     */
+    public function removeAttribute(string $name): void
+    {
+        if (!$this->hasAttribute($name)) {
+            throw new MissingAttributeError("The requested attribute '{$name}' does not exist");
+        }
+
+        unset($this->attributes[$name]);
+    }
+
     /**
      * @return Trailers|null
      */

test/RequestTest.php

@@ -106,6 +106,13 @@ public function testGetAttribute(): void
         $request->setAttribute('foo', 'bar');
         $this->assertSame('bar', $request->getAttribute('foo'));
 
+        $request->setAttribute('bar', 'baz');
+        $this->assertSame('baz', $request->getAttribute('bar'));
+
+        $this->assertSame(['foo' => 'bar', 'bar' => 'baz'], $request->getAttributes());
+
+        $request->removeAttribute('bar');
+
         $this->expectException(MissingAttributeError::class);
         $request->getAttribute('bar');
     }