docs: Document supported package extras

docs/batch.md

@@ -52,7 +52,7 @@ AWS S3
 
 ### `encoding`
 
-The `encoding` field is used to specify the format and compression of the batch files. Currently only `jsonl` and `gzip` are supported, respectively.
+The `encoding` field is used to specify the format and compression of the batch files. Currently `jsonl`, `gzip` and `parquet` are supported.
 
 ### `manifest`
 

docs/conf.py

@@ -39,6 +39,7 @@
     "sphinx.ext.napoleon",
     "sphinx.ext.autosectionlabel",
     "sphinx.ext.autosummary",
+    "sphinx.ext.intersphinx",
     "sphinx_copybutton",
     "myst_parser",
     "sphinx_reredirects",
@@ -127,3 +128,10 @@
 redirects = {
     "porting.html": "guides/porting.html",
 }
+
+# -- Options for intersphinx -------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/extensions/intersphinx.html#configuration
+intersphinx_mapping = {
+    "requests": ("https://requests.readthedocs.io/en/latest/", None),
+    "python": ("https://docs.python.org/3/", None),
+}

docs/dev_guide.md

@@ -177,6 +177,14 @@ Some APIs instead return the records as values inside an object where each key i
   ]
   ```
 
+## Extra features
+
+The following [extra features](https://packaging.python.org/en/latest/specifications/dependency-specifiers/#extras) are available for the Singer SDK:
+
+- `s3` - Enables AWS S3 as a [BATCH storage](batch.md#the-batch-message).
+- `parquet` - Enables as [BATCH encoding](batch.md#encoding).
+- `testing` - Pytest dependencies required to use the [Tap & Target Testing Framework](testing.md).
+
 ## Resources
 
 ### Detailed Class Reference

singer_sdk/authenticators.py

@@ -131,13 +131,10 @@ def authenticate_request(
         """Authenticate a request.
 
         Args:
-            request: A `request object`_.
+            request: A :class:`requests.PreparedRequest` object.
 
         Returns:
             The authenticated request object.
-
-        .. _request object:
-            https://requests.readthedocs.io/en/latest/api/#requests.PreparedRequest
         """
         request.headers.update(self.auth_headers)
 
@@ -154,13 +151,10 @@ def __call__(self, r: requests.PreparedRequest) -> requests.PreparedRequest:
         and returns the result.
 
         Args:
-            r: A `request object`_.
+            r: A :class:`requests.PreparedRequest` object.
 
         Returns:
             The authenticated request object.
-
-        .. _request object:
-            https://requests.readthedocs.io/en/latest/api/#requests.PreparedRequest
         """
         return self.authenticate_request(r)
 

singer_sdk/pagination.py

@@ -181,7 +181,7 @@ class BaseHATEOASPaginator(
     like "https://api.com/link/to/next-item".
 
     The :attr:`~singer_sdk.pagination.BaseAPIPaginator.current_value` attribute of
-    this paginator is a `urllib.parse.ParseResult`_ object. This object
+    this paginator is a :class:`urllib.parse.ParseResult` object. This object
     contains the following attributes:
 
     - scheme
@@ -208,9 +208,6 @@ def get_url_params(self, next_page_token) -> dict:
                if next_page_token:
                    return dict(parse_qsl(next_page_token.query))
                return {}
-
-    .. _`urllib.parse.ParseResult`:
-         https://docs.python.org/3/library/urllib.parse.html#urllib.parse.urlparse
     """
 
     def __init__(self, *args: t.Any, **kwargs: t.Any) -> None:

singer_sdk/plugin_base.py

@@ -403,9 +403,7 @@ def print_version(
 
         Args:
             print_fn: A function to use to display the plugin version.
-                Defaults to `print`_.
-
-        .. _print: https://docs.python.org/3/library/functions.html#print
+                Defaults to :py:func:`print`.
         """
         print_fn(f"{cls.name} v{cls.plugin_version}, Meltano SDK v{cls.sdk_version}")
 

singer_sdk/streams/rest.py

@@ -137,10 +137,7 @@ def requests_session(self) -> requests.Session:
         """Get requests session.
 
         Returns:
-            The `requests.Session`_ object for HTTP requests.
-
-        .. _requests.Session:
-            https://requests.readthedocs.io/en/latest/api.html#requests.Session
+            The :class:`requests.Session` object for HTTP requests.
         """
         if not self._requests_session:
             self._requests_session = requests.Session()
@@ -168,14 +165,11 @@ def validate_response(self, response: requests.Response) -> None:
         .. image:: ../images/200.png
 
         Args:
-            response: A `requests.Response`_ object.
+            response: A :class:`requests.Response` object.
 
         Raises:
             FatalAPIError: If the request is not retriable.
             RetriableAPIError: If the request is retriable.
-
-        .. _requests.Response:
-            https://requests.readthedocs.io/en/latest/api.html#requests.Response
         """
         if (
             response.status_code in self.extra_retry_statuses
@@ -198,7 +192,7 @@ def response_error_message(self, response: requests.Response) -> str:
         WARNING - Override this method when the URL path may contain secrets or PII
 
         Args:
-            response: A `requests.Response`_ object.
+            response: A :class:`requests.Response` object.
 
         Returns:
             str: The error message
@@ -286,7 +280,7 @@ def get_url_params(
 
         If your source needs special handling and, for example, parentheses should not
         be encoded, you can return a string constructed with
-        `urllib.parse.urlencode`_:
+        :py:func:`urllib.parse.urlencode`:
 
         .. code-block:: python
 
@@ -306,9 +300,6 @@ def get_url_params(self, context, next_page_token):
         Returns:
             Dictionary or encoded string with URL query parameters to use in the
                 request.
-
-        .. _urllib.parse.urlencode:
-           https://docs.python.org/3/library/urllib.parse.html#urllib.parse.urlencode
         """
         return {}
 
@@ -322,16 +313,11 @@ def build_prepared_request(
         Uses the authenticator instance to mutate the request with authentication.
 
         Args:
-            *args: Arguments to pass to `requests.Request`_.
-            **kwargs: Keyword arguments to pass to `requests.Request`_.
+            *args: Arguments to pass to :class:`requests.Request`.
+            **kwargs: Keyword arguments to pass to :class:`requests.Request`.
 
         Returns:
-            A `requests.PreparedRequest`_ object.
-
-        .. _requests.PreparedRequest:
-            https://requests.readthedocs.io/en/latest/api.html#requests.PreparedRequest
-        .. _requests.Request:
-            https://requests.readthedocs.io/en/latest/api.html#requests.Request
+            A :class:`requests.PreparedRequest` object.
         """
         request = requests.Request(*args, **kwargs)
         self.requests_session.auth = self.authenticator
@@ -460,7 +446,7 @@ def update_sync_costs(
 
         Args:
             request: the Request object that was just called.
-            response: the `requests.Response` object
+            response: the :class:`requests.Response` object
             context: the context passed to the call
 
         Returns:
@@ -498,7 +484,7 @@ def calculate_sync_cost(
 
         Args:
             request: the API Request object that was just called.
-            response: the `requests.Response` object
+            response: the :class:`requests.Response` object
             context: the context passed to the call
 
         Returns:
@@ -596,13 +582,10 @@ def parse_response(self, response: requests.Response) -> t.Iterable[dict]:
         """Parse the response and return an iterator of result records.
 
         Args:
-            response: A raw `requests.Response`_ object.
+            response: A raw :class:`requests.Response`
 
         Yields:
             One item for every item found in the response.
-
-        .. _requests.Response:
-            https://requests.readthedocs.io/en/latest/api.html#requests.Response
         """
         yield from extract_jsonpath(self.records_jsonpath, input=response.json())