---
title: "json-attribute"
slug: "json-attribute-parser"
updated: 2022-07-27T23:47:44Z
published: 2022-07-27T23:47:44Z
canonical: "code.tag.bio/json-attribute-parser"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://code.tag.bio/llms.txt
> Use this file to discover all available pages before exploring further.

# json-attribute

The `json-attribute` **parser** will load data from a column in a source data table and map values to other values before producing categorical **variables** within a **collection**.

The `json-attribute` **parser** will parse a column value as a JSON object, and will extract the value from the specified attribute to become a **variable** within a **collection**.

```
{
  "parser_type": "json-attribute",
  "table_alias": "tata",
  "column": "cccc",
  "key": "kkkk",
  "collection": "collection_name"
}
```

## key

The `key` attribute indicates the attribute within the JSON object to parse as a variable name.