consistent username references, and update authentication api calls

Author: erinmikailstaples

python/rag/healthcare-support-portal/README.md

@@ -1003,19 +1003,17 @@ Each service provides interactive API documentation:
 curl -X POST "http://localhost:8001/api/v1/auth/register" \
   -H "Content-Type: application/json" \
   -d '{
-    "email": "[email protected]",
+    "username": "dr_smith",
+    "email": "[email protected]",
     "password": "secure_password",
     "role": "doctor",
     "department": "cardiology"
   }'
 
 # Login to get JWT token
 curl -X POST "http://localhost:8001/api/v1/auth/login" \
-  -H "Content-Type: application/json" \
-  -d '{
-    "email": "[email protected]",
-    "password": "secure_password"
-  }'
+  -H "Content-Type: application/x-www-form-urlencoded" \
+  -d "username=dr_smith&password=secure_password"
 ```
 
 ### 2. Upload Medical Documents

python/rag/healthcare-support-portal/scripts/get_auth_token.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Get authentication token for dr_smith user
+# This script demonstrates the correct username format for API calls
+
+TOKEN=$(curl -s -X POST "http://localhost:8001/api/v1/auth/login" \
+  -H "Content-Type: application/x-www-form-urlencoded" \
+  -d "username=dr_smith&password=secure_password" | \
+  python3 -c "import sys, json; print(json.load(sys.stdin)['access_token'])")
+
+echo "Got auth token: ${TOKEN:0:20}..."
+
+# Export the token for use in other scripts
+export AUTH_TOKEN="$TOKEN"
+echo "Token exported as AUTH_TOKEN environment variable"
+echo "You can now use it in other curl commands like:"
+echo "curl -H \"Authorization: Bearer \$AUTH_TOKEN\" http://localhost:8002/api/v1/patients/"