[Response] Ensure body is a string when encoding is text (#52)

nuclio_sdk/response.py

@@ -77,9 +77,7 @@ def from_entrypoint_output(json_encoder, handler_output):
         else:
             response["body"] = handler_output
 
-        if isinstance(response["body"], bytes):
-            response["body"] = base64.b64encode(response["body"]).decode("ascii")
-            response["body_encoding"] = "base64"
+        Response._ensure_str_body(response)
 
         return response
 
@@ -92,3 +90,12 @@ def empty_response():
             "status_code": 200,
             "body_encoding": "text",
         }
+
+    @staticmethod
+    def _ensure_str_body(response):
+        if isinstance(response["body"], bytes):
+            response["body"] = base64.b64encode(response["body"]).decode("ascii")
+            response["body_encoding"] = "base64"
+
+        if response["body_encoding"] == "text":
+            response["body"] = str(response["body"])

nuclio_sdk/test/test_response.py

@@ -30,7 +30,12 @@ def test_str(self):
 
     def test_int(self):
         handler_return = 2020
-        expected_response = self._compile_output_response(body=2020)
+        expected_response = self._compile_output_response(body="2020")
+        self._validate_response(handler_return, expected_response)
+
+    def test_float(self):
+        handler_return = 12.34
+        expected_response = self._compile_output_response(body="12.34")
         self._validate_response(handler_return, expected_response)
 
     def test_bytes(self):
@@ -56,7 +61,7 @@ def test_iterable(self):
 
     def test_datetime(self):
         handler_return = datetime.datetime.now()
-        expected_response = self._compile_output_response(body=handler_return)
+        expected_response = self._compile_output_response(body=str(handler_return))
         self._validate_response(handler_return, expected_response)
 
     def test_status_code_and_str(self):