Add alias when fetch field from response

Signed-off-by: Vitor Mattos <[email protected]>

README.md

@@ -79,7 +79,7 @@ To send a value as array, you can set a json string and the json string will be
 ```gherkin
 When sending "post" to ocs "/apps/libresign/api/v1/request-signature"
   | status | 1 |
-  | file | {"base64":""} |
+  | file   | {"base64":""} |
 ```
 
 ## Parse response using jq
@@ -112,7 +112,9 @@ If you need to:
 - Get values from a request, store and use in other request
 - Parse the response of a request
 
-Implement a method `parseText` like the follow code and remember to call parent method:
+Implement a method `parseText` like the follow code and remember to call parent method.
+
+This methods can works together with `fetch field :path from prevous JSON response`
 ```php
 protected function parseText(string $text): string {
   $patterns = [

features/test.feature

@@ -76,9 +76,9 @@ Feature: Test this extension
       }
       """
     And sending "POST" to "/"
-    And fetch field "data.0.foo" from prevous JSON response
+    And fetch field "(foo)data.0.foo" from prevous JSON response
     # After fetch the field, you can use the value of field like this:
-    And sending "POST" to "/?foo=<data.0.foo>"
+    And sending "POST" to "/?foo=<foo>"
       | field | <data.0.foo> |
 
   Scenario: Test initial state with string

src/NextcloudApiContext.php

@@ -316,12 +316,19 @@ private function validateAsJsonQuery(string $expected, string $actual): void {
 	public function fetchFieldFromPreviousJsonResponse(string $path): void {
 		$this->response->getBody()->seek(0);
 		$responseArray = json_decode($this->response->getBody()->getContents(), true);
+		if (preg_match('/(?<alias>\([^)]*\))(?<patch>.*)/', $path, $matches)) {
+			$alias = $matches['alias'];
+			$path = $matches['patch'];
+		}
 		$keys = explode('.', $path);
 		$value = $responseArray;
 		foreach ($keys as $key) {
 			Assert::assertArrayHasKey($key, $value, 'Key [' . $key . '] of path [' . $path . '] not found.');
 			$value = $value[$key];
 		}
+		if (isset($alias)) {
+			$this->fields[$alias] = $value;
+		}
 		$this->fields[$path] = $value;
 	}