Exclude params on job retrieval by default

qiskit_ibm_runtime/api/clients/runtime.py

@@ -100,7 +100,7 @@ def program_run(
             **hgp_dict,
         )
 
-    def job_get(self, job_id: str, exclude_params: bool = None) -> Dict:
+    def job_get(self, job_id: str, exclude_params: bool = True) -> Dict:
         """Get job data.
 
         Args:

qiskit_ibm_runtime/runtime_job.py

@@ -621,7 +621,7 @@ def inputs(self) -> Dict:
             Input parameters used in this job.
         """
         if not self._params:
-            response = self._api_client.job_get(job_id=self.job_id())
+            response = self._api_client.job_get(job_id=self.job_id(), exclude_params=False)
             self._params = response.get("params", {})
         return self._params
 

releasenotes/notes/exclude-job-params-default-00133498a5c5c15d.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Many methods in :class:`~qiskit_ibm_runtime.RuntimeJob` require retrieving the job data from the API with
+    ``job_get()``. This API call will now exclude the ``params`` field by default because they are only necessary in
+    :meth:`qiskit_ibm_runtime.RuntimeJob.inputs`.

test/integration/test_retrieve_job.py

@@ -71,6 +71,18 @@ def test_lazy_loading_params(self, service):
         self.assertTrue(rjob.inputs)
         self.assertTrue(rjob._params)
 
+    @run_integration_test
+    @quantum_only
+    def test_params_not_retrieved(self, service):
+        """Test excluding params when unnecessary."""
+        job = self._run_program(service)
+        job.wait_for_final_state()
+
+        self.assertTrue(job.creation_date)
+        self.assertFalse(job._params)
+        self.assertTrue(job.inputs)
+        self.assertTrue(job._params)
+
     @run_integration_test
     def test_retrieve_all_jobs(self, service):
         """Test retrieving all jobs."""

test/unit/mock/fake_runtime_client.py

@@ -344,7 +344,7 @@ def program_run(
         self._jobs[job_id] = job
         return {"id": job_id, "backend": backend_name}
 
-    def job_get(self, job_id: str, exclude_params: bool = None) -> Any:
+    def job_get(self, job_id: str, exclude_params: bool = True) -> Any:
         """Get the specific job."""
         return self._get_job(job_id, exclude_params).to_dict()