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Life & fun · April 29, 2016

OS

Open sourcing nearby.lk data models library

Open sourcing nearby.lk data models library launched on April 29, 2016 with 15 votes, #1,731 of 4,301 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 10 years on.

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In plain words

Open sourcing nearby.lk data models library is a data modeling tool that parses JSON or YAML files according to user-defined specifications written as CoffeeScript classes. It includes an editor that validates input against schemas and renders parsed data using custom render functions. The editor supports both plain YAML input and form-based input modes, handling complex data structures with customizable property types and definitions. This library is designed for developers who need flexible, schema-driven data management.

written from the facts on this page · September 2026

From the sources

We did a re-write of the nearby.lk data model library, and we decided to open source the core of it. It supports JSON or YAML data files, and parses them based on a specification (like a schema). The specification is a coffeescript class with a render function. The editor checks the input against the specification and uses the render function to show the parsed input. The editor can either work in YAML mode (plain YAML input) or form input mode (user fills up a form). It can handle quite complex data models. Define properties. The type of the property is determined based on the property parameters. It defaults to Value property. oneof specifies that the property is one of the models…from vpj.github.io

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