Integration Checklist

• Implement /posnext/order/validate API endpoint
• Implement /posnext/order/submit API endpoint
• Implement /posnext/orders/{orderId} API endpoint (for polling)
• Implement /posnext/menus API endpoint
• Implement JWT token validation
• Implement payload signature validation
• Implement response signature generation
• Implement an ID mapping table for the PAR-provided OrganizationId and LocationId to internal IDs
• Support 202 Accepted responses for async processing (exceptional cases only - normal expectation is immediate 200 OK responses)
• Test with the provided mock server reference implementation

Integration Testing Checklist

• Test JWT token validation
• Test payload signature validation
• Test response signature generation
• Test and validate the endpoint with a valid order
• Test validate endpoint with invalid order
• Test submit endpoint
• Test 202 Accepted response and polling
• Test GetOrder endpoint
• Test menu sync endpoint
• Test error responses
• Test signature mismatch scenarios