Net check - Network Monitor - Documentation (O11)

Stable version 1.0.0 (Compatible with OutSystems 11)

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on 12 Feb (13 hours ago)

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Documentation

1.0.0

Net Check – Network Monitor is a drag-and-drop OutSystems Web Block that provides real-time network monitoring for Reactive Web and Mobile applications.

The component automatically detects:

Online / Offline status
Connection type (2G / 3G / 4G / 5G / WiFi)
Effective network speed
Downlink bandwidth
Network latency (RTT)
Slow network conditions

It exposes a An NetworkChanged event that returns a structured NetData object in JSON format, allowing applications to react instantly to connectivity changes.

Developers can also use the GetNetworkStatus client action to fetch the current network state on demand.

Ideal for offline-first applications, auto-sync mechanisms, retry logic, and performance-aware UI handling.

Usage

Drag the NetCheck Web Block into your screen.
Handle the NetworkChanged event.
Use the NetData structure to implement:
- Offline banners
- Auto-sync when back online
- Disable heavy operations on slow networks
- Retry failed API calls

The NetworkChanged event and GetNetworkStatus action returns a structured JSON object mapped to the NetData structure.

Attribute	Type	Description
IsOnline	Boolean	Indicates whether the device currently has internet connectivity.
Type	Text	The physical connection type (e.g., wifi, cellular, Ethernet).
EffectiveType	Text	Estimated effective network speed (slow-2g, 2g, 3g, 4g).
Downlink	Decimal	Estimated bandwidth in Mbps.
Rtt	Integer	Estimated round-trip time (latency) in milliseconds.
IsSlow	Boolean	True if the connection is detected as slow (2G or slow-2G).
Timestamp	Text	ISO timestamp of when the network status was captured.
Reason	Text	Indicates why the event was triggered (Initialized, Online, Offline, NetworkChanged).