#### Yellow Dog REST APIs

# User Guide

- [Authentication](/rest/user-guide/01-authentication)
- [Timestamps (v2 vs. v3)](/rest/user-guide/02-timestamps)
- [Rate Limit](/rest/user-guide/03-rate-limit)
- [API Headers and Parameters](/rest/user-guide/04-headers-params)
  - [Recommended Request Headers](/rest/user-guide/04-headers-params/req-headers)
  - [Pagination](/rest/user-guide/04-headers-params/pagination)
  - [Filtering](/rest/user-guide/04-headers-params/filtering)
  - [Ordering](/rest/user-guide/04-headers-params/ordering)
  - [Field Expansion](/rest/user-guide/04-headers-params/field-expansion)
- [Best Practices for Third Party Systems](/rest/user-guide/09-third-party-best-practices)
  - [Get Items](/rest/user-guide/09-third-party-best-practices#get-items/)
  - [Supporting Integration for Point-of-Sale Systems](/rest/user-guide/09-third-party-best-practices#supporting-an-inventory-integration-for-point-of-sale-systems)
- [API Request Examples](/rest/user-guide/10-api-req-examples)
- [Testing in Postman](/rest/user-guide/11-testing-in-postman)
  - [What is Postman](/rest/user-guide/11-testing-in-postman#what-is-postman)
  - [Install Postman & Import Collection](/rest/user-guide/11-testing-in-postman#install-postman--import-collection/index.md)
  - [Adding Environment and Variables](/rest/user-guide/11-testing-in-postman#adding-environment-and-variables)
  - [Making First API Call](/rest/user-guide/11-testing-in-postman#making-first-api-call)
- [Validating Fetch API Calls](/rest/user-guide/12-validating-api-reqs)
- [RFID API Guide](/rest/user-guide/13-rfid)
- [Support Requests](/rest/user-guide/14-support)


# API Endpoint Reference

- [Auth API endpoints](/rest/auth/api)
- [Fetch API endpoints](/rest/fetch/api)