--- title: "How to Get Employee Leave Data from Employment Hero API" url: "https://lb.getknit.dev/blog/how-to-get-employee-leave-data-from-employment-hero-api/" date: "2026-08-13T12:58:28+00:00" modified: "2026-08-23T11:20:33+00:00" type: "post" --- # How to Get Employee Leave Data from Employment Hero API [Blog](https://lb.getknit.dev/blog) / [Tutorials](https://lb.getknit.dev/blogs/tutorials/) / How to Get Employee Leave Data from Employment Hero API [Tutorials](https://lb.getknit.dev/blogs/tutorials/) · August 13, 2026 How to Get Employee Leave Data from Employment Hero API ======================================================= ![](https://storage.googleapis.com/knit-website-media/2026/08/64c34ca1e0546a9d333bb35a_Kunal-3-150x150.png)Kunal Mishra 4 min read [](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Flb.getknit.dev%2Fblog%2Fhow-to-get-employee-leave-data-from-employment-hero-api%2F) [](https://twitter.com/intent/tweet?url=https%3A%2F%2Flb.getknit.dev%2Fblog%2Fhow-to-get-employee-leave-data-from-employment-hero-api%2F&text=How%20to%20Get%20Employee%20Leave%20Data%20from%20Employment%20Hero%20API) Table of Contents - [Introduction](#introduction) - [Pre-requisites](#pre-requisites) - [API Endpoints](#api-endpoints) - [Step-by-Step Process](#step-by-step-process) - [Step 1: Obtain Authorization Code](#step-1-obtain-authorization-code) - [Step 2: Exchange Authorization Code for Access Token](#step-2-exchange-authorization-code-for-access-token) - [Step 3: Fetch Employee Leave Data](#step-3-fetch-employee-leave-data) - [Step 4: Fetch All Employees Leave Data](#step-4-fetch-all-employees-leave-data) - [Common Pitfalls](#common-pitfalls) - [Frequently Asked Questions](#frequently-asked-questions) - [1. How do I refresh an expired access token?](#1-how-do-i-refresh-an-expired-access-token) - [2. What scopes are required for accessing leave data?](#2-what-scopes-are-required-for-accessing-leave-data) - [3. Can I access leave data for all employees at once?](#3-can-i-access-leave-data-for-all-employees-at-once) - [4. How often can I call the API?](#4-how-often-can-i-call-the-api) - [5. What happens if the user denies permission?](#5-what-happens-if-the-user-denies-permission) - [6. Is the access token reusable?](#6-is-the-access-token-reusable) - [7. Can I update leave data using this API?](#7-can-i-update-leave-data-using-this-api) - [Knit for Employment Hero API Integration](#knit-for-employment-hero-api-integration) Introduction ------------ This article is part of a broader series covering the[ Employment Hero API ](/blog/employment-hero-api-directory-yiirat/)in depth. In this guide, we focus specifically on how to retrieve employee leave data using the Employment Hero API. If you’re building HR, payroll, or workforce management workflows, leave data is a core dataset. This walkthrough covers the complete process, from authentication to fetching leave data for a single employee or across the organization. For a comprehensive deep dive into authentication, rate limits, and other use cases, refer to the complete HRIS API [guide](/blog/full-list-of-knits-hris-api-guides/). [/blog/employment-hero-api-directory-yiirat/](/blog/employment-hero-api-directory-yiirat/) Pre-requisites -------------- Before you begin, make sure the following are in place: - Register your application on the Employment Hero Developer Portal to obtain OAuth 2.0 credentials (client ID and client secret). - Ensure you have the necessary scopes configured for accessing employee leave data. - Set up a secure server to handle OAuth 2.0 redirection and token storage. Without proper OAuth configuration and scopes, your integration will fail—so get this foundation right. API Endpoints ------------- You will work with the following endpoints: - **Authorization Endpoint** `https://oauth.employmenthero.com/oauth2/authorize` - **Access Token Endpoint** `https://oauth.employmenthero.com/oauth2/token` - **Employee Leave Data Endpoint** `https://api.employmenthero.com/api/v1/employees/{employee_id}/leave` - **All Employees Leave Data Endpoint** `https://api.employmenthero.com/api/v1/employees/leave` Step-by-Step Process -------------------- ### Step 1: Obtain Authorization Code Redirect the user to the authorization URL to grant access. ``` import requests client_id = 'your_client_id' redirect_uri = 'https://yourapp.com/callback' auth_url = f'https://oauth.employmenthero.com/oauth2/authorize?client_id={client_id}&redirect_uri={redirect_uri}&response_type=code' response = requests.get(auth_url) print(response.url) # Direct user to this URL for authorization ``` The user logs in and approves access. You will receive an authorization code via your configured redirect URI. ### Step 2: Exchange Authorization Code for Access Token Use the authorization code to request an access token. ``` import requests client_id = 'your_client_id' client_secret = 'your_client_secret' redirect_uri = 'https://yourapp.com/callback' code = 'authorization_code_from_previous_step' token_url = 'https://oauth.employmenthero.com/oauth2/token' data = { 'grant_type': 'authorization_code', 'code': code, 'redirect_uri': redirect_uri, 'client_id': client_id, 'client_secret': client_secret } response = requests.post(token_url, data=data) access_token = response.json().get('access_token') ``` Store the access token securely. You’ll use it for all subsequent API calls. ### Step 3: Fetch Employee Leave Data To retrieve leave data for a specific employee: ``` import requests headers = {'Authorization': f'Bearer {access_token}'} employee_id = 'specific_employee_id' leave_url = f'https://api.employmenthero.com/api/v1/employees/{employee_id}/leave' response = requests.get(leave_url, headers=headers) employee_leave_data = response.json() ``` This endpoint returns leave records for the specified employee. ### Step 4: Fetch All Employees Leave Data To retrieve leave data for all employees: ``` import requests headers = {'Authorization': f'Bearer {access_token}'} leave_url = 'https://api.employmenthero.com/api/v1/employees/leave' response = requests.get(leave_url, headers=headers) all_employees_leave_data = response.json() ``` This is useful for reporting, dashboards, payroll sync, or compliance workflows. Common Pitfalls --------------- Most integration failures aren’t technical, they’re configuration issues. Watch out for these: 1. Not registering the application correctly on the Developer Portal. 2. Incorrectly configured redirect URIs. 3. Using expired access tokens without refreshing them. 4. Insufficient scopes for accessing leave data. 5. Not handling OAuth 2.0 errors properly. 6. Ignoring rate limits imposed by the API. 7. Storing sensitive credentials insecurely. If your calls fail, start by checking scopes and token validity before debugging code. Frequently Asked Questions -------------------------- ### 1. How do I refresh an expired access token? Use the refresh token to request a new access token from the token endpoint. ### 2. What scopes are required for accessing leave data? Ensure your application has the necessary scopes configured during registration. ### 3. Can I access leave data for all employees at once? Yes. Use the endpoint for all employees leave data. ### 4. How often can I call the API? Refer to the official API documentation for rate limits and ensure your application adheres to them. ### 5. What happens if the user denies permission? The authorization process fails, and you will not receive an authorization code. ### 6. Is the access token reusable? Yes, until it expires. After expiry, you must refresh it. ### 7. Can I update leave data using this API? This guide focuses on reading leave data. Refer to the official API documentation for update capabilities. Knit for Employment Hero API Integration ---------------------------------------- If you want faster deployment and less integration overhead, Knit API provides a streamlined alternative. With a single integration to Knit, you can abstract away authentication, authorization, token management, and ongoing API maintenance. This reduces engineering effort and accelerates time to production while ensuring a stable and reliable connection to the [Employment Hero API.](https://developers.getknit.dev/docs/employmenthero-usecases) --- **Ready to build this integration?** Explore Knit’s [Employment Hero integration](/integration/employment-hero/) 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) [API Directory](https://lb.getknit.dev/blogs/api-directory/) ### [Employment Hero API Directory](https://lb.getknit.dev/blog/employment-hero-api-directory-yiirat/) Learn about the common Employment Hero API data models and API end points in this comprehensive Employment Hero API directory August 13, 2026 · 20 min read ![](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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