fix: Check for errors before parsing api json response

.github/workflows/pr.yml

@@ -0,0 +1,18 @@
+name: PR
+
+on:
+  pull_request:
+    types:
+      - opened
+      - edited
+      - synchronize
+      - closed
+      - converted_to_draft
+      - ready_for_review
+jobs:
+  check-pr:
+    name: Check PR
+    uses: ftrackhq/ftrack-actions/.github/workflows/pr-base.yml@main
+    secrets:
+      token: ${{ secrets.GITHUB_TOKEN }}
+      ftrackApiKey: ${{ secrets.FTRACK_API_KEY }}

source/ftrack_api/session.py

@@ -1692,38 +1692,47 @@ def call(self, data):
 
         self.logger.debug(L('Calling server {0} with {1!r}', url, data))
 
-        response = self._request.post(
-            url,
-            headers=headers,
-            data=data,
-            timeout=self.request_timeout,
-        )
+        try:
+            response = self._request.post(
+                url,
+                headers=headers,
+                data=data,
+                timeout=self.request_timeout,
+            )
+            response.raise_for_status()
 
-        self.logger.debug(L('Call took: {0}', response.elapsed.total_seconds()))
+        except requests.exceptions.HTTPError:
+            error_message = (
+                'Server reported error: {0}'
+                .format(response.text)
+            )
+            self._raise_server_error(error_message)
 
+        self.logger.debug(L('Call took: {0}', response.elapsed.total_seconds()))
         self.logger.debug(L('Response: {0!r}', response.text))
-        try:
-            result = self.decode(response.text)
 
+        try:        
+            result = self.decode(response.text)
         except Exception:
             error_message = (
                 'Server reported error in unexpected format. Raw error was: {0}'
                 .format(response.text)
             )
-            self.logger.exception(error_message)
-            raise ftrack_api.exception.ServerError(error_message)
+            self._raise_server_error(error_message)
 
         else:
             if 'exception' in result:
                 # Handle exceptions.
                 error_message = 'Server reported error: {0}({1})'.format(
                     result['exception'], result['content']
                 )
-                self.logger.exception(error_message)
-                raise ftrack_api.exception.ServerError(error_message)
-
+                self._raise_server_error(error_message)
         return result
 
+    def _raise_server_error(self, error_message):
+        self.logger.exception(error_message)
+        raise ftrack_api.exception.ServerError(error_message)
+
     def encode(self, data, entity_attribute_strategy='set_only'):
         '''Return *data* encoded as JSON formatted string.