HGI-6349: Backoff on malformed XML error

setup.cfg

@@ -35,6 +35,7 @@ install_requires =
     singer-python>=5.0.12
     requests>=2.20.0
     xmltodict==0.12.0
+    backoff==1.8.0
 
 [options.package_data]
 schemas = tap_intacct/schemas/*.json

src/tap_intacct/client.py

@@ -1,6 +1,7 @@
 """
 API Base class with util functions
 """
+import backoff
 import datetime as dt
 import json
 import re
@@ -10,6 +11,8 @@
 
 import requests
 import xmltodict
+from xml.parsers.expat import ExpatError
+
 from calendar import monthrange
 
 import singer
@@ -121,6 +124,10 @@ def _set_session_id(self, user_id: str, company_id: str, user_password: str):
             raise SageIntacctSDKError('Error: {0}'.format(response['errormessage']))
 
     @singer.utils.ratelimit(10, 1)
+    @backoff.on_exception(backoff.expo,
+                      (ExpatError),
+                      max_tries=5,
+                      factor=2)
     def _post_request(self, dict_body: dict, api_url: str) -> Dict:
         """
         Create a HTTP post request.