Modern trading platforms operate in an environment where speed and responsiveness are critical. Market prices change by the millisecond, orders are executed continuously, and multiple events occur simultaneously across different accounts and liquidity providers. To manage this complexity, trading systems must handle a large number of asynchronous operations efficiently.
The Asynchronous Nature of Modern Trading Platforms
In a typical trading platform, actions such as order execution, position updates, risk alerts, and account notifications happen independently and in real time. These operations do not follow a simple request-response pattern. Instead, the system must manage multiple parallel events, often triggered by external sources like liquidity providers or market data feeds.
For traders and administrators, this means that backend responses are unpredictable and require continuous monitoring to make informed decisions.
Limitations of Traditional REST-Only Workflows
While REST APIs are widely used in trading platforms, they are inherently synchronous. A REST call waits for a response before continuing, which makes it challenging to handle real-time events. Users often need to implement polling mechanisms or additional state-tracking logic to detect changes, adding complexity and latency.
For non-technical traders, these workflows can be cumbersome. Continuous polling increases network traffic and system load, while complex logic for state management increases the likelihood of errors or missed events.
FiSDK’s Event-Driven Design
FiSDK addresses these challenges with an event-driven architecture. Instead of requiring users to constantly query the backend, FiSDK allows them to subscribe to events and react only when updates occur. This design aligns perfectly with the asynchronous nature of trading, providing a responsive and efficient interface for traders and administrators alike.
By abstracting raw REST calls into event subscriptions, FiSDK reduces the technical burden on users while enabling real-time interactions with the trading backend.
How subscribeToNotification() Works
The core feature of FiSDK’s event-driven design is the subscribeToNotification() function. It allows users to listen for specific events, such as:
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Order execution reports
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Position changes
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Risk limit breaches
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Account balance updates
A typical usage pattern looks like this:
When the specified event occurs, the callback function is triggered automatically with the relevant data, eliminating the need for manual polling or complex REST call chains.
Practical Examples of Handling Trading Events
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Real-Time Risk Alerts: Monitor user positions and trigger notifications when risk thresholds are exceeded.
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Order Tracking: Automatically update dashboards or trigger downstream operations when orders are executed.
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Account Monitoring: Track account balance or margin changes and notify administrators instantly.
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Market Events: Respond to external market events or liquidity updates in real time without constant API requests.
With FiSDK, traders and platform operators can focus on decision-making and strategy execution, rather than managing the mechanics of asynchronous communication.