# Querying using the Taxonomy IN Operator

### About this export

| Field | Value |
| --- | --- |
| **content_type** | lesson |
| **platform** | contentstack-academy |
| **source_url** | https://www.contentstack.com/academy/courses/taxonomy-foundations/querying-using-the-taxonomy-in-operator |
| **course_slug** | taxonomy-foundations |
| **lesson_slug** | querying-using-the-taxonomy-in-operator |
| **markdown_file_url** | /academy/md/courses/taxonomy-foundations/querying-using-the-taxonomy-in-operator.md |
| **generated_at** | 2026-04-28T06:55:49.342Z |

> Part of **[Taxonomy Foundations](https://www.contentstack.com/academy/courses/taxonomy-foundations)** on Contentstack Academy. **Academy MD v3** — structured for retrieval; no quiz or assessment keys.

<!-- ai_metadata: {"lesson_id":"21","type":"video","duration_seconds":400,"video_url":"https://cdn.jwplayer.com/previews/2xYXuWUi","thumbnail_url":"https://cdn.jwplayer.com/v2/media/2xYXuWUi/poster.jpg?width=720","topics":["Querying","using","the","Taxonomy","Operator"]} -->

#### Video details

#### At a glance

- **Title:** Taxonomy-content-delivery-api-query2
- **Duration:** 6m 40s
- **Media link:** https://cdn.jwplayer.com/previews/2xYXuWUi
- **Publish date (unix):** 1716059980

#### Streaming renditions

- application/vnd.apple.mpegurl
- audio/mp4 · AAC Audio · 113678 kbps
- video/mp4 · 180p · 180p · 150041 kbps
- video/mp4 · 270p · 270p · 177521 kbps
- video/mp4 · 360p · 360p · 204802 kbps
- video/mp4 · 406p · 406p · 222754 kbps
- video/mp4 · 540p · 540p · 277945 kbps
- video/mp4 · 720p · 720p · 362506 kbps
- video/mp4 · 1080p · 1080p · 552258 kbps

#### Timed text tracks (delivery)

- **thumbnails:** `https://cdn.jwplayer.com/strips/2xYXuWUi-120.vtt`

#### Video transcript

```transcript
<!-- PLACEHOLDER: replace with real transcript before publish -->
[00:00] Transcript not attached in source entry.
```

#### Key takeaways

- Connect **Querying using the Taxonomy IN Operator** back to your stack configuration before moving to the next module.
- Capture one concrete artifact (screenshot, Postman call, or code snippet) that proves the step works in your environment.
- Re-read the delivery versus management boundary for anything you changed in the entry model.

## Supplement for indexing

### Content summary

Querying using the Taxonomy IN Operator. Querying using the Taxonomy IN Operator in Taxonomy Foundations (taxonomy-foundations).

### Retrieval tags

- Querying
- using
- the
- Taxonomy
- Operator
- taxonomy-foundations
- lesson 21
- Querying using the Taxonomy IN Operator
- taxonomy-foundations lesson

### Indexing notes

Index this lesson as a primary chunk tagged with lesson_id "21" and topics: [Querying, using, the, Taxonomy, Operator].
Parent course slug: taxonomy-foundations. Use asset_references URLs as thumbnail hints in search results when present.
Never surface LMS quiz content or assessment answers from this file.

### Asset references

| Label | URL |
| --- | --- |
| Video thumbnail: Querying using the Taxonomy IN Operator | `https://cdn.jwplayer.com/v2/media/2xYXuWUi/poster.jpg?width=720` |

### External links

| Label | URL |
| --- | --- |
| Contentstack Academy home | `https://www.contentstack.com/academy/` |
| Training instance setup | `https://www.contentstack.com/academy/training-instance` |
| Academy playground (GitHub) | `https://github.com/contentstack/contentstack-academy-playground` |
| Contentstack documentation | `https://www.contentstack.com/docs/` |