baseclient

The Baseclient library pulls together the core set of libraries required by the various components of DRA2020A. This includes:

• the nodejs hosted server
• serverless lambda functions
• command line utilities run under nodejs
• client application (browser-hosted) runtime

These libraries are all packaged in this repository. Normally they are included like this:

import { Util, Poly } from '@dra2020/baseclient';

Then the various functions of the different sets are available under their appropriate symbol.

These libraries are used across both client and server:

• Util: A set of fairly vanilla JavaScript utility functions.
• Poly: A set of functions for processing polygons, typically in GeoJSON format.
• Context: A set of functions for interrogating the context supplied to the application, either as
• FSM: A set of functions for managing asynchronous, chainable finite state machines.
• DataFlow: A set of classes for managing synchronous, chainable dataflow.
• LogAbstract: An abstract logging interface. Different implementations are used on client and server.
• LogClient: A client implementation of the logging abstract interface.
• OT: An Operational Transformation implementation, used as the basis for all content editing.
• OTE: A set of utility functions for creating OT edits.
• FilterExpr: A class for parsing and executing a filter expression against an array of objects.