--- title: "Get Employee Leave Data from OneLogin API" url: "https://lb.getknit.dev/blog/get-employee-leave-data-from-onelogin-api/" date: "2026-08-13T12:58:32+00:00" modified: "2026-08-23T11:20:35+00:00" type: "post" --- # Get Employee Leave Data from OneLogin API [Blog](https://lb.getknit.dev/blog) / [Tutorials](https://lb.getknit.dev/blogs/tutorials/) / Get Employee Leave Data from OneLogin API [Tutorials](https://lb.getknit.dev/blogs/tutorials/) · August 13, 2026 Get Employee Leave Data from OneLogin API ========================================= ![](https://storage.googleapis.com/knit-website-media/2026/08/64c34ca1e0546a9d333bb35a_Kunal-3-150x150.png)Kunal Mishra 3 min read [](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Flb.getknit.dev%2Fblog%2Fget-employee-leave-data-from-onelogin-api%2F) [](https://twitter.com/intent/tweet?url=https%3A%2F%2Flb.getknit.dev%2Fblog%2Fget-employee-leave-data-from-onelogin-api%2F&text=Get%20Employee%20Leave%20Data%20from%20OneLogin%20API) Table of Contents - [Introduction](#introduction) - [Prerequisites](#prerequisites) - [API Endpoints](#api-endpoints) - [Step-by-Step Process](#step-by-step-process) - [Common Pitfalls](#common-pitfalls) - [FAQs](#faqs) - [Knit for OneLogin API Integration](#knit-for-onelogin-api-integration) Introduction ------------ This article is part of a series on [HRIS APIs](/blog/everything-you-need-to-know-about-hris-api-integration/). In this post, we focus on a common requirement, retrieving employee leave data—and explain how far the OneLogin API can support this use case. ### Prerequisites Before you begin, make sure you have: - Access to a OneLogin account with API permissions enabled - A valid OneLogin API client (Client ID and Client Secret) - Python installed on your system - The `requests` library available in your Python environment ### API Endpoints - **Base URL** `https://api.onelogin.com` - **Authentication Endpoint** `/auth/oauth2/v2/token` - **User Data Endpoint** `/api/1/users` ### Step-by-Step Process #### Step 1: Authenticate and Obtain an Access Token Use the OAuth 2.0 client credentials flow to retrieve an access token. ``` import requests client_id = 'YOUR_CLIENT_ID' client_secret = 'YOUR_CLIENT_SECRET' auth_url = 'https://api.onelogin.com/auth/oauth2/v2/token' auth_headers = { 'Content-Type': 'application/json' } auth_data = { 'grant_type': 'client_credentials', 'client_id': client_id, 'client_secret': client_secret } response = requests.post(auth_url, headers=auth_headers, json=auth_data) access_token = response.json().get('access_token') ``` #### Step 2: Fetch User Data Once authenticated, use the access token to retrieve user records from OneLogin. ``` user_url = 'https://api.onelogin.com/api/1/users' user_headers = { 'Authorization': f'Bearer {access_token}' } user_response = requests.get(user_url, headers=user_headers) users = user_response.json() ``` This endpoint returns identity-related information such as user IDs, names, email addresses, roles, and status. #### Step 3: Extract Leave Data (Key Limitation) At this stage, it’s important to set expectations clearly: **OneLogin does not provide employee leave or attendance data through its API.** If your use case requires leave information, you will need to: - Integrate with a dedicated HR or payroll system that manages leave - Use OneLogin user IDs or email addresses as a linking key between systems Common Pitfalls --------------- - Treating OneLogin as an HR system rather than an identity provider - Assuming leave or attendance data is available in user objects - Failing to refresh or reissue access tokens after expiration - Not validating API response status codes before processing data - Ignoring pagination when fetching large user directories - Hardcoding API credentials instead of securing them properly - Overlooking OneLogin API rate limits during bulk syncs FAQs ---- **Q: How do I get API credentials for OneLogin?** A: Log in to OneLogin and navigate to **Settings → API** to create a client and obtain your Client ID and Client Secret. **Q: What happens when the access token expires?** A: You must re-run the authentication flow to obtain a new access token. **Q: Can OneLogin provide employee leave or attendance data?** A: No. OneLogin does not manage or expose leave data via its API. **Q: How should I handle pagination when fetching users?** A: Use the pagination parameters returned in the API response to iterate through user records. **Q: Are there rate limits on the OneLogin API?** A: Yes. Rate limits apply and should be handled according to OneLogin’s API documentation. **Q: Is this API suitable for production use?** A: Yes, provided you follow security best practices and handle tokens, rate limits, and errors correctly. **Q: What response format does the OneLogin API use?** A: All responses are returned in JSON format. Knit for OneLogin API Integration --------------------------------- If you’re looking to avoid managing OAuth flows, token refresh logic, pagination, and long-term maintenance, Knit provides a streamlined alternative. By integrating with Knit once, you can access OneLogin data through a unified API layer. Knit handles authentication, authorization, and ongoing integration upkeep, allowing teams to focus on downstream workflows rather than infrastructure complexity. --- **Ready to build this integration?** Explore Knit’s [OneLogin integration](/integration/onelogin/) or read more about our [Unified HRIS API](/integration-categories/unified-hris-api/). ![](https://storage.googleapis.com/knit-website-media/2026/08/64c34ca1e0546a9d333bb35a_Kunal-3-150x150.png)Written by Kunal Mishra Changing integration landscape, one organization at a time‍ Keep Reading ------------ ![](https://storage.googleapis.com/knit-website-media/2026/08/blog-banner-green-640x400.png) [Tutorials](https://lb.getknit.dev/blogs/tutorials/) ### [How to Create a Slack Bot in 5 Minutes: A to Z Guide](https://lb.getknit.dev/blog/how-to-create-a-slack-bot/) You can create your own Slack Bot in just a few minutes with the Knit Unified API. 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