Lowcoder Tutorial - Data Transformer

Meet the Data Transformer in Lowcoder! This feature allows you to write multi-line JavaScript code to transform and refine your data, directly when a Data Query was executed, all within the Lowcoder environment.

In this video, we illustrate how transformers work and when to use them. For example, imagine you have raw data from an API that isn’t in the format you need for your UI; a transformer can map, filter, or combine that data into the perfect shape. We’ll create a transformer step-by-step, showing how to access query data and perform operations like sorting and merging datasets. A key point is that transformers are read-only by design – they won’t trigger other queries or modify states (keeping side effects out).

Instead, they focus purely on computation, ensuring predictable outcomes. Lowcoder’s approach here is beginner-friendly: you write JavaScript as if in a small function, and Lowcoder handles making the result available (e.g., via transformerName.value). The ability to reuse the same code block in multiple places is a huge time-saver, distinguishing Lowcoder from platforms that force you to repeat logic.

You can find more examples in Lowcoder’s docs under “Transformers”, which we recommend reading for deeper insight into this feature.

https://docs.lowcoder.cloud/lowcoder-documentation/business-logic-in-apps/write-javascript/transformers

Видео Lowcoder Tutorial - Data Transformer канала Lowcoder, rapid App Builder for AI & Business Apps