добавил логгер + добавил 1) headers для запроса в ройстат 2) явно конвертнул объект питона в json, как в документации к api

apps/payment/tasks.py

@@ -1,5 +1,6 @@
 import logging
 import requests
+import json
 
 from mixpanel import Mixpanel
 
@@ -8,6 +9,7 @@ from django.conf import settings
 from project.celery import app
 
 logger = logging.getLogger(__name__)
+logger_roistat = logging.getLogger('roistat')
 
 
 @app.task
@@ -53,13 +55,24 @@ def transaction_to_roistat(user_id, payment_id, event_name, amount, time, status
     }]
     project = settings.ROISTAT_PROJECT
     key = settings.ROISTAT_KEY
-    url = settings.ROISTAT_API_URL + f'/project/add-orders?key={key}&project={project}'
-    resp = requests.post(url, json=body)
+    url = settings.ROISTAT_API_URL + \
+        f'/project/add-orders?key={key}&project={project}'
+
+    payload = json.dumps(body)
+    headers = {'content-type': 'application/json'}
+
+    resp = requests.request("POST", url, data=payload, headers=headers)
+
     try:
         resp_json = resp.json()
     except:
         resp_json = None
+
     if resp.status_code != 200 or not resp_json or not resp_json.get('processed'):
-        logger.error('TRANSACTION_TO_ROISTAT for payment # %d, %s RUB: %s' % (payment_id, amount, resp.text))
+        logger.error('TRANSACTION_TO_ROISTAT for payment # %d, %s RUB: %s' % (
+            payment_id, amount, resp.text))
+        roistat_logger.debug('TRANSACTION_TO_ROISTAT for payment # %d, %s RUB: %s' % (
+            payment_id, amount, resp.text))
     else:
-        logger.info('TRANSACTION_TO_ROISTAT: ' + str(resp))
+        logger.info('TRANSACTION_TO_ROISTAT: ' + str(resp.text))
+        roistat_logger.debug('TRANSACTION_TO_ROISTAT: ' + str(resp.text))

project/views.py

@@ -12,9 +12,6 @@ from apps.course.models import Course
 from apps.school.models import SchoolSchedule
 from apps.payment.models import SchoolPayment, UserGiftCertificate, Payment, DrawingCampPayment
 from apps.content.models import Banner, Package
-import logging
-
-logger_roistat = logging.getLogger('roistat')
 
 User = get_user_model()
 
@@ -139,8 +136,6 @@ class IndexView(TemplateView):
 
         })
 
-        logger_roistat.debug('hi from home page!')
-
         return context