Add ping endpoing

docs/rest-api.md

@@ -22,7 +22,14 @@ Sample configuration:
 !!! Danger "Password selection"
     Please make sure to select a very strong, unique password to protect your bot from unauthorized access.
 
-You can then access the API by going to `http://127.0.0.1:8080/api/v1/version` to check if the API is running correctly.
+You can then access the API by going to `http://127.0.0.1:8080/api/v1/ping` to check if the API is running correctly.
+This should return the response:
+
+``` output
+{"status":"pong"}
+```
+
+All other endpoints will require authentication, so are not available through a webrowser.
 
 To generate a secure password, either use a password manager, or use the below code snipped.
 

freqtrade/rpc/api_server.py

@@ -169,6 +169,8 @@ class ApiServer(RPC):
                               view_func=self._status, methods=['GET'])
         self.app.add_url_rule(f'{BASE_URI}/version', 'version',
                               view_func=self._version, methods=['GET'])
+        self.app.add_url_rule(f'{BASE_URI}/ping', 'ping',
+                              view_func=self._ping, methods=['GET'])
 
         # Combined actions and infos
         self.app.add_url_rule(f'{BASE_URI}/blacklist', 'blacklist', view_func=self._blacklist,
@@ -224,6 +226,13 @@ class ApiServer(RPC):
         msg = self._rpc_stopbuy()
         return self.rest_dump(msg)
 
+    @rpc_catch_errors
+    def _ping(self):
+        """
+        simple poing version
+        """
+        return self.rest_dump({"status": "pong"})
+
     @require_login
     @rpc_catch_errors
     def _version(self):

tests/rpc/test_rpc_apiserver.py

@@ -64,6 +64,10 @@ def test_api_not_found(botclient):
 
 def test_api_unauthorized(botclient):
     ftbot, client = botclient
+    rc = client.get(f"{BASE_URI}/ping")
+    assert_response(rc)
+    assert rc.json == {'status': 'pong'}
+
     # Don't send user/pass information
     rc = client.get(f"{BASE_URI}/version")
     assert_response(rc, 401)