Implemented root API v2 routes

openflexure_microscope/api/v2/blueprints/stream.py

@@ -0,0 +1,57 @@
+from openflexure_microscope.api.utilities import gen, JsonResponse
+from openflexure_microscope.api.views import MicroscopeView
+
+from flask import Response, Blueprint, jsonify, request
+
+
+class StreamAPI(MicroscopeView):
+    def get(self):
+        """
+        Real-time MJPEG stream from the microscope camera
+
+        .. :quickref: Stream; Camera MJPEG stream
+
+        :>header Accept: image/jpeg
+        :>header Content-Type: image/jpeg
+        :status 200: stream active
+        """
+        # Restart stream worker thread
+        self.microscope.camera.start_worker()
+
+        return Response(
+            gen(self.microscope.camera),
+            mimetype="multipart/x-mixed-replace; boundary=frame",
+        )
+
+
+class SnapshotAPI(MicroscopeView):
+    def get(self):
+        """
+        Single snapshot from the camera stream
+
+        .. :quickref: Stream; Camera snapshot
+
+        :>header Accept: image/jpeg
+        :>header Content-Type: image/jpeg
+        :status 200: stream active
+        """
+        # Restart stream worker thread
+        self.microscope.camera.start_worker()
+
+        return Response(self.microscope.camera.get_frame(), mimetype="image/jpeg")
+
+
+def construct_blueprint(microscope_obj):
+
+    blueprint = Blueprint("v2_stream_blueprint", __name__)
+
+    blueprint.add_url_rule(
+        "/stream", view_func=StreamAPI.as_view("stream", microscope=microscope_obj)
+    )
+
+    blueprint.add_url_rule(
+        "/snapshot",
+        view_func=SnapshotAPI.as_view("snapshot", microscope=microscope_obj),
+    )
+
+    return blueprint