create capsul is working

capsulflask/http_client.py

@@ -37,11 +37,14 @@ class MyHTTPClient:
     return self.client_session
 
   async def post_json(self, url: str,  body: str, method="POST", authorization_header=None) -> HTTPResult:
+    # TODO make a configuration option where this throws an error if the url does not start with https://
     response = None
     try:
       headers = {}
       if authorization_header != None:
         headers['Authorization'] = authorization_header
+      if body:
+        headers['Content-Type'] = "application/json"
       response = await self.get_client_session().request(
         method=method, 
         url=url, 
@@ -85,7 +88,7 @@ class MyHTTPClient:
 
 # i lifted this direct from https://stackoverflow.com/a/58616001
 # this is the bridge between Flask's one-thread-per-request world
-# and aiohttp's event-loop based world
+# and aiohttp's event-loop based world -- it allows us to call run_coroutine from a flask request handler
 
 class EventLoopThread(threading.Thread):
     loop = None