update search api with params and description on syntax

docs/dev/search_api.rst

@@ -5,31 +5,200 @@ The search supports both ``GET`` and ``POST``.
 
 Furthermore, two enpoints ``/`` and ``/search`` are available for querying.
 
+
+``GET /``
+
+``GET /search``
+
+Parameters
+~~~~~~~~~~
+
 .. code:: sh
 
-    GET /
+    q
+
+The search query. This string is passed to external search services.
+Thus, searx supports syntax of each search service. For example, ``site:github.com searx`` is a valid
+query for Google. However, if simply the query above is passed to any search engine which does not filter its
+results based on this syntax, you might not get the results you wanted.
+
+
+See more at :doc:`/user/search_syntax`
+
+Required.
 
 .. code:: sh
 
-    GET /search
+    categories
 
-Parameters
-``````````
-
-+------------------+----------------------------------------------------------------------------------------------------+--------------------------------------------------+
-| Name             | Description                                                                                        |                                                  |
-+==================+====================================================================================================+==================================================+
-| ``q``            | The search query, see :doc:`/user/search_syntax`                                                   | required                                         |
-+------------------+----------------------------------------------------------------------------------------------------+--------------------------------------------------+
-| ``categories``   | Comma separated list, specifies the active search categories                                       | optional                                         |
-+------------------+----------------------------------------------------------------------------------------------------+--------------------------------------------------+
-| ``engines``      | Comma separated list, specifies the active search engines                                          | optional                                         |
-+------------------+----------------------------------------------------------------------------------------------------+--------------------------------------------------+
-| ``lang``         | Code of the language                                                                               | optional (default: ``all``)                      |
-+------------------+----------------------------------------------------------------------------------------------------+--------------------------------------------------+
-| ``pageno``       | Search page number                                                                                 | optional (default: ``1``)                        |
-+------------------+----------------------------------------------------------------------------------------------------+--------------------------------------------------+
-| ``time_range``   | Time range of search                                                                               | optional (possible: ``day``, ``month``, ``year``)|
-+------------------+----------------------------------------------------------------------------------------------------+--------------------------------------------------+
-| ``format``       | Output format of results                                                                           | optional (possible: ``json``, ``csv``, ``rss``)  |
-+------------------+----------------------------------------------------------------------------------------------------+--------------------------------------------------+
+Comma separated list, specifies the active search categories
+
+Optional.
+
+.. code:: sh
+
+    engines
+
+Comma separated list, specifies the active search engines.
+
+Optional.
+
+.. code:: sh
+
+    lang
+
+Code of the language.
+
+Optional.
+
+Default: ``all``
+
+.. code:: sh
+
+    pageno
+
+Search page number.
+
+Optional.
+
+Default: ``1``
+
+.. code:: sh
+
+    time_range
+
+Time range of search for engines which support it. See if an engine supports time range search in the preferences page of an instance.
+
+Optional.
+
+Possible: ``day``, ``month``, ``year``
+
+.. code:: sh
+
+    format
+
+Output format of results.
+
+Optional.
+
+Possible: ``json``, ``csv``, ``rss``
+
+.. code:: sh
+
+    results_on_new_tab
+
+Open search results on new tab.
+
+Optional.
+
+Default: ``0``
+
+Possible: ``0``, ``1``
+
+.. code:: sh
+
+    image_proxy
+
+Proxy image results through searx.
+
+Optional.
+
+Default: ``False``
+
+Possible: ``True``, ``False``
+
+.. code:: sh
+
+    autocomplete
+
+Service which completes words as you type.
+
+Optional.
+
+Default: empty
+
+Possible: ``google``, ``dbpedia``, ``duckduckgo``, ``startpage``, ``wikipedia``
+
+.. code:: sh
+
+    safesearch
+
+Filter search results of engines which support safe search. See if an engine supports safe search in the preferences page of an instance.
+
+Optional.
+
+Default: ``None``
+
+Possible: ``0``, ``1``, ``None``
+
+.. code:: sh
+
+    theme
+
+Theme of instance.
+
+Optional.
+
+Default: ``oscar``
+
+Possible: ``oscar``, ``simple``, ``legacy``, ``pix-art``, ``courgette``
+
+Please note, available themes depend on an instance. It is possible that an instance administrator deleted, created or renamed themes on his/her instance. See the available options in the preferences page of the instance.
+
+.. code:: sh
+
+    oscar-style
+
+Style of Oscar theme. It is only parsed if the theme of an instance is ``oscar``.
+
+Optional.
+
+Default: ``logicodev``
+
+Possible: ``pointhi``, ``logicodev``
+
+Please note, available styles depend on an instance. It is possible that an instance administrator deleted, created or renamed styles on his/her instance. See the available options in the preferences page of the instance.
+
+.. code:: sh
+
+    enabled_plugins
+
+List of enabled plugins.
+
+Optional.
+
+Default: ``HTTPS_rewrite``, ``Self_Informations``, ``Search_on_category_select``, ``Tracker_URL_remover``
+
+Possible: ``DOAI_rewrite``, ``HTTPS_rewrite``, ``Infinite_scroll``, ``Vim-like_hotkeys``, ``Self_Informations``, ``Tracker_URL_remover``, ``Search_on_category_select``
+
+.. code:: sh
+
+    disabled_plugins
+
+List of disabled plugins.
+
+Optional.
+
+Default: ``DOAI_rewrite``, ``Infinite_scroll``, ``Vim-like_hotkeys``
+
+Possible: ``DOAI_rewrite``, ``HTTPS_rewrite``, ``Infinite_scroll``, ``Vim-like_hotkeys``, ``Self_Informations``, ``Tracker_URL_remover``, ``Search_on_category_select``
+
+.. code:: sh
+
+    enabled_engines
+
+List of enabled engines.
+
+Optional.
+
+Possible:  all engines
+
+.. code:: sh
+
+    disabled_engines
+
+List of disabled engines.
+
+Optional.
+
+Possible: all engines