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    @floip/expression-evaluator
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    2.1.4 • Public • Published

    Flow Interoperability Project (FLOIP) Expression Evaluator

    Introduction

    The purpose of the project is to enable useful interoperability between Flow-based platforms, and to incentivize the joining of future software tools into an interoperable ecosystem. We will accomplish this through a set of open specifications, and a set of open-source toolsets that reduce barriers to adoption. The initial focus is on tools for mobile/web engagement, although the most basic layer of the specification is general and can represent non-mobile business logic.

    What are Expressions?

    While a flow paradigm is useful in representing control logic in an easy to understand manner for non-technical users, there is a need to both refer to variables collected within other parts of a flow and transform them in basic ways.

    Further reading at Flow Specification Gitbook: Expressions

    Basic Expression Evaluator Usage

    The expression evaluator expects two arguments:

    • expression — a string containing a Flow Specification compatible expression within it.
    • context — an object whose values can be referenced by the provided expression.
    import {EvaluatorFactory} from '@floip/expression-evaluator'
    
    const expr = 'Hello @(first_word(contact.name))!'
    const ctx = {
        contact: {name: 'Marshawn Lynch'}
    }
    
    EvaluatorFactory.create()
        .evaluate(expr, ctx) // 'Marshawn'

    Keywords

    none

    Install

    npm i @floip/expression-evaluator

    DownloadsWeekly Downloads

    81

    Version

    2.1.4

    License

    MIT

    Unpacked Size

    240 kB

    Total Files

    255

    Last publish

    Collaborators

    • bzabos
    • markboots
    • seifertk
    • alteadown
    • bulatgab
    • jacob.viamo
    • r.safydy