Page Comparison

Push

HTTP

HTTP Caller

• Simple

• Common

• Real-time updates

• Limited performance at scale

• Transformation of occupancy information to parking sessions is necessary

• Raw sensor data transfer between backend systems

• It is good for quick proof of concept demo integrations and tests

AMQP

RabbitMQ RTA & Sessions

• Fast

• Reliable

• Scalable

• Real-time updates

• Requires setup and configuration of the RabbitMQ Server

• Robust message bus between high load backend systems

• Commercial billing information / SDI

Pull

HTTP

REST Occupancy

• Simple

• Common

• Quick setup

• Not suitable for real-time applications

• Generates a lot of traffic and excessive server load when pulled frequently

• Query-based method to get data when it is required, e.g. loading a page about a sensor, group or zone occupancy

Push & Pull

GraphQL

GraphQL Occupancy

• Flexible

• Traffic-Efficient

• Real-time updates

• Relatively new and less common

• Modern and large user-based web and mobile apps

• Real-time dashboards