api endpoint for instance logs

src/spiffworkflow_backend/api.yml

@@ -925,6 +925,28 @@ paths:
               schema:
                 $ref: "#/components/schemas/Workflow"
 
+
+  /process-instance/{process_instance_id}/logs:
+    parameters:
+      - name: process_instance_id
+        in: path
+        required: true
+        description: the id of the process instance
+        schema:
+          type: integer
+    get:
+      tags:
+        - Process Instances
+      operationId: spiffworkflow_backend.routes.process_api_blueprint.get_process_instance_logs
+      summary: returns a list of logs associated with the process instance
+      responses:
+        "200":
+          description: list of logs
+          content:
+            application/json:
+              schema:
+                type: array
+
 components:
   securitySchemes:
     jwt:

src/spiffworkflow_backend/routes/process_api_blueprint.py

@@ -19,6 +19,7 @@ from flask_bpmn.api.api_error import ApiError
 from flask_bpmn.models.db import db
 from SpiffWorkflow import Task as SpiffTask  # type: ignore
 from SpiffWorkflow import TaskState
+from spiffworkflow_backend.models.spiff_logging import SpiffLoggingModel, SpiffLoggingModelSchema
 from sqlalchemy import desc
 
 from spiffworkflow_backend.exceptions.process_entity_not_found_error import (
@@ -349,6 +350,18 @@ def process_instance_terminate(
     return Response(json.dumps({"ok": True}), status=200, mimetype="application/json")
 
 
+def get_process_instance_logs(process_instance_id: int) -> Response:
+    logs = SpiffLoggingModel.query.\
+        filter(SpiffLoggingModel.process_instance_id == process_instance_id).\
+        all()
+    log_schema = SpiffLoggingModelSchema(many=True).dump(logs)
+    return Response(
+        json.dumps(log_schema),
+        status=200,
+        mimetype="application/json",
+    )
+
+
 # body: {
 #   payload: dict,
 #   process_instance_id: Optional[int],