Use new exclude_params query when retrieving jobs

qiskit_ibm_provider/api/clients/runtime.py

@@ -147,7 +147,7 @@ def program_run(
             **hgp_dict
         )
 
-    def job_get(self, job_id: str) -> Dict:
+    def job_get(self, job_id: str, exclude_params: bool = None) -> Dict:
         """Get job data.
 
         Args:
@@ -156,7 +156,7 @@ def job_get(self, job_id: str) -> Dict:
         Returns:
             JSON response.
         """
-        response = self._api.program_job(job_id).get()
+        response = self._api.program_job(job_id).get(exclude_params=exclude_params)
         logger.debug("Runtime job get response: %s", response)
         return response
 

qiskit_ibm_provider/api/rest/program_job.py

@@ -47,13 +47,21 @@ def __init__(
         """
         super().__init__(session, "{}/jobs/{}".format(url_prefix, job_id))
 
-    def get(self) -> Dict:
+    def get(self, exclude_params: bool = None) -> Dict:
         """Return program job information.
 
+        Args:
+            exclude_params: If ``True``, the params will not be included in the response.
+
         Returns:
             JSON response.
         """
-        return self.session.get(self.get_url("self")).json(cls=RuntimeDecoder)
+        payload = {}
+        if exclude_params:
+            payload["exclude_params"] = "true"
+        return self.session.get(self.get_url("self"), params=payload).json(
+            cls=RuntimeDecoder
+        )
 
     def job_type(self) -> str:
         """Return job type:

qiskit_ibm_provider/ibm_backend_service.py

@@ -639,7 +639,9 @@ def retrieve_job(self, job_id: str) -> IBMJob:
                 legacy = True
                 job_info = self._default_hgp._api_client.job_get(job_id)
             else:
-                job_info = self._provider._runtime_client.job_get(job_id)
+                job_info = self._provider._runtime_client.job_get(
+                    job_id, exclude_params=True
+                )
                 if job_info.get("program", {}).get("id") not in [
                     "circuit-runner",
                     "qasm3-runner",

releasenotes/notes/exclude-params-645aefa765d5bf07.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    When retrieving a job with :meth:`~qiskit_ibm_provider.IBMBackendService.retrieve_job` the ``params``
+    will no longer be returned from the API. They will instead be loaded lazily 
+    when they are actually needed.

test/integration/test_ibm_job.py

@@ -515,3 +515,12 @@ def test_job_header(self):
         job = self.sim_backend.run(self.bell, header=custom_header)
         self.assertEqual(custom_header["test"], job.header()["test"])
         self.assertLessEqual(custom_header.items(), job.header().items())
+
+    def test_lazy_loading_params(self):
+        """Test lazy loading job params."""
+        job = self.sim_backend.run(self.bell)
+        job.wait_for_final_state()
+
+        rjob = self.provider.backend.retrieve_job(job.job_id())
+        self.assertFalse(rjob._params)
+        self.assertTrue(rjob.circuits)