• WireCloud is the Reference Implementation of the FIWARE’s Application Mashup Generic Enabler

  • It is a framework to create value-added application mashups by means of integrating heterogeneous data, application logic, and UI web components in a visual manner

• WireCloud is offered under a Affero GPL v3 license with a classpath-like exception, allowing mashups, widgets, and operators to be licensed under any license without any restriction

• A workspace represents the place where users can edit their dashboards.
• A dashboard contains the set of widgets that will conform the frontend of the application mashup.
• Users can place/resize/name... their widgets as they wish on the workspace.
• A workspace is also composed of tabs.

• A widget is a UI component developed using web technologies (HTML, CSS, JavaScript, ...)
• It provides the atomic functionality of the application mashup
• It can send data to other widgets and/or receive events from them.

• WireCloud provides a data flow- or event-based mechanism that widgets can use to notify other widgets about changes in their state
• Widgets can consume these events to provide an unified behaviour of the application mashup
  • The final user is who decides this final behaviour
• It allows you to easily connect widgets with operators in a mashup to create a full-fledged dashboard with RIA functionality

Piping allows you to easily connect widgets to back-end services or data sources through an extendable set of operators, including filters, aggregators, adapters, etc...

• A mashup represents your application.
• It is built from widgets, operators, and backend services, all of them connnected by wiring and piping.
• The are built in the context of workspaces/dashboards

• As shown in the previous diagram, WireCloud internally follows a client-server architecture.
• From the user's perspective, WireCloud mainly runs on client side (in her browser), where she can visually create her dashboards
  • It also runs the mashup and the wiring engine to interconnect widgets/operators.
• WireCloud's server side provides some key features through the MashupPlatform API, such as cross-domain proxy functionalities to get access to external services / web APIs. It also provides some modules to get connected to other FIWARE's GEs
  • It also stores dashboards.

• MashupPlatform: Core API provided by WireCloud to widgets and operators.
• NGSI API: API used for interacting with the Orion Context Broker.
• Object Storage API: API used for interacting with the Object Storage.