vc_service_request: introduce free tier

vc_service_request.py

@@ -51,18 +51,18 @@ def prepare_audio(audio: Tuple[int, np.ndarray]) -> np.ndarray:
     return wav
 
 
-def create_signature() -> str:
+def create_signature(api_secret: str) -> str:
     """
     helper function that creates signature,
     required to authentificate the request
     """
     int_time = int(time.time() / 1000)
-    signature_input = (os.environ["api_secret"] + str(int_time)).encode()
+    signature_input = (api_secret + str(int_time)).encode()
     signature = hashlib.sha256(signature_input).hexdigest()
     return signature
 
 
-async def async_service_request(source: np.ndarray, target: np.ndarray) -> np.ndarray:
+async def async_service_request(source: np.ndarray, target: np.ndarray, api_key: str, api_secret: str) -> np.ndarray:
     ssl_context = ssl.create_default_context()
 
     async with websockets.connect(
@@ -71,8 +71,8 @@ async def async_service_request(source: np.ndarray, target: np.ndarray) -> np.nd
         request_dict = {
             "source": base64.b64encode(source.tobytes()).decode("utf-8"),
             "target": base64.b64encode(target.tobytes()).decode("utf-8"),
-            "api_key": os.environ["api_key"],
-            "signature": create_signature(),
+            "api_key": api_key,
+            "signature": create_signature(api_secret),
         }
         request = json.dumps(request_dict)
         await websocket.send(request)
@@ -94,7 +94,8 @@ async def async_service_request(source: np.ndarray, target: np.ndarray) -> np.nd
 
 
 def vc_service_request(
-    source_audio: Tuple[int, np.ndarray], target_audio: Tuple[int, np.ndarray]
+    source_audio: Tuple[int, np.ndarray], target_audio: Tuple[int, np.ndarray],
+    api_key: str, api_secret: str,
 ) -> Tuple[int, np.ndarray]:
     """
     prepares audio (has to be 16khz mono)
@@ -108,5 +109,5 @@ def vc_service_request(
         # input is way too long, dont return anything
         return
 
-    res = asyncio.run(async_service_request(src, tgt))
+    res = asyncio.run(async_service_request(src, tgt, api_key, api_secret))
     return 16000, res