Improvement/youtubei (#1029)

* Adds functionality for interacting with certain endpoints of the innertube API.

pytube/innertube.py

@@ -0,0 +1,120 @@
+"""This module is designed to interact with the innertube API.
+
+This module is NOT intended to be used directly by end users, as each of the
+interfaces returns raw results. These should instead be parsed to extract
+the useful information for the end user.
+"""
+# Native python imports
+import json
+from urllib import parse
+
+# Local imports
+from pytube import request
+
+
+class InnerTube:
+    """Object for interacting with the innertube API."""
+    @property
+    def base_url(self):
+        """Return the base url endpoint for the innertube API."""
+        return 'https://www.youtube.com/youtubei/v1'
+
+    @property
+    def base_data(self):
+        """Return the base json data to transmit to the innertube API."""
+        return {
+            'context': {
+                'client': {
+                    'clientName': 'WEB',
+                    'clientVersion': '2.20200720.00.02'
+                }
+            }
+        }
+
+    @property
+    def base_params(self):
+        """Return the base query parameters to transmit to the innertube API."""
+        return {
+            'key': 'AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8'
+        }
+
+    def _call_api(self, endpoint, query, data):
+        """Make a request to a given endpoint with the provided query parameters and data."""
+        endpoint_url = f'{endpoint}?{parse.urlencode(query)}'
+        response = request._execute_request(
+            endpoint_url,
+            'POST',
+            headers={
+                'Content-Type': 'application/json',
+            },
+            data=data
+        )
+        return json.loads(response.read())
+
+    def browse(self):
+        """Make a request to the browse endpoint.
+
+        TODO: Figure out how we can use this
+        """
+        # endpoint = f'{self.base_url}/browse'  # noqa:E800
+        ...
+        # return self._call_api(endpoint, query, self.base_data)  # noqa:E800
+
+    def config(self):
+        """Make a request to the config endpoint.
+
+        TODO: Figure out how we can use this
+        """
+        # endpoint = f'{self.base_url}/config'  # noqa:E800
+        ...
+        # return self._call_api(endpoint, query, self.base_data)  # noqa:E800
+
+    def guide(self):
+        """Make a request to the guide endpoint.
+
+        TODO: Figure out how we can use this
+        """
+        # endpoint = f'{self.base_url}/guide'  # noqa:E800
+        ...
+        # return self._call_api(endpoint, query, self.base_data)  # noqa:E800
+
+    def next(self):
+        """Make a request to the next endpoint.
+
+        TODO: Figure out how we can use this
+        """
+        # endpoint = f'{self.base_url}/next'  # noqa:E800
+        ...
+        # return self._call_api(endpoint, query, self.base_data)  # noqa:E800
+
+    def player(self, video_id):
+        """Make a request to the player endpoint.
+
+        :param str video_id:
+            The video id to get player info for.
+        :rtype: dict
+        :returns:
+            Raw player info results.
+        """
+        endpoint = f'{self.base_url}/player'
+        query = {
+            'videoId': video_id,
+        }
+        query.update(self.base_params)
+        return self._call_api(endpoint, query, self.base_data)
+
+    def search(self, search_query):
+        """Make a request to the search endpoint.
+
+        :param str search_query:
+            The query to search.
+        :rtype: dict
+        :returns:
+            Raw search query results.
+        """
+        endpoint = f'{self.base_url}/search'
+        query = {
+            'query': search_query
+        }
+        query.update(self.base_params)
+        return self._call_api(endpoint, query, self.base_data)