Use secure OAuth 2.0 tokens and API keys to authorize requests to the Contacts API. Store credentials securely and scope requests to read-only where appropriate (scope: contacts.readonly).
Rankr authenticates to GHL using a client secret and access token. Ensure your Rankr installation can rotate tokens automatically and refresh sessions as needed.
GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/tasks/:taskId, GET /contacts/:contactId/notes, GET /contacts/:contactId/notes/:id, GET /contacts/:contactId/appointments, GET /contacts/, GET /contacts/business/:businessId, POST /contacts/, PUT /contacts/:contactId, DELETE /contacts/:contactId, POST /contacts/:contactId/tasks, PUT /contacts/:contactId/tasks/:taskId, PUT /contacts/:contactId/tasks/:taskId/completed, DELETE /contacts/:contactId/tasks/:taskId, POST /contacts/:contactId/tags
Trigger: a new or updated contact in GHL triggers a sync to Rankr.
Actions: fetch contact details, update the corresponding Rankr record, and optionally pull related tasks.
GET /contacts/:contactId
Key fields: id, email, name, phone, tags
Trigger: when a contact’s tasks are updated in GHL.
Actions: pull tasks and notes data, create or update corresponding records in Rankr.
GET /contacts/:contactId/tasks
Key fields: taskId, dueDate, status, title
Trigger: changes to contact appointments in GHL.
Actions: pull appointments and attach to Rankr records.
GET /contacts/:contactId/appointments
Key fields: appointmentId, startTime, endTime, location
Automate contact data syncing in real time, reducing manual entry and data gaps.
Coordinate tasks, notes, and appointments across systems without writing code.
Easily extend workflows as your needs grow by adding new endpoints and automations.
This glossary defines common data elements and processes used in the Contacts API integration.
An API is a set of rules that lets applications communicate; the Contacts API exposes endpoints to read and manage contact data.
A webhook is a real-time callback that notifies your app when data changes.
OAuth 2.0 is an authorization framework used to grant limited access tokens to clients.
An endpoint is a URL path in an API used to perform actions or fetch data.
Use GET /contacts/:contactId to fetch and auto-create Rankr customer records when new leads enter GHL.
Leverage tasks endpoints to trigger Rankr task pipelines when updates occur.
Sync notes and appointments back and forth for a complete activity history.
Obtain your GHL API credentials and Rankr app keys, then configure the scope to read-only where needed.
Map the required endpoints (e.g., GET /contacts/:contactId) to Rankr actions.
Test data flows, set up error handling, then deploy to production.
Authentication is done via OAuth 2.0 with API keys to authorize requests to the Contacts API. Use a valid access token in the Authorization header and ensure the scope includes at least read permissions (scope: contacts.readonly) to access contact data. Maintain secure storage for credentials and rotate tokens regularly.
Read-only access is granted through the contacts.readonly scope. The available GET endpoints let you fetch contacts, their tasks, notes, and appointments without modifying data. Examples include GET /contacts/:contactId and GET /contacts/:contactId/tasks to pull information.
Writing is possible when the app is granted write permissions via appropriate scopes (POST, PUT, DELETE). This requires careful authorization and data integrity checks. Always test writes in a sandbox before applying to production.
Test using a staging environment or mock data to validate responses, mappings, and error handling. Enable detailed logging and verify data flows end-to-end before deployment.
Best practices include consistent field mapping, handling missing data gracefully, and using webhooks for real-time updates. Implement idempotent operations and robust retry logic.
Respect rate limits by queuing requests and implementing exponential backoff. Monitor usage with alerts and design error handling that surfaces actionable messages to users.
Endpoint paths are documented in the API reference. Start with GET /contacts/:contactId to fetch a contact and iterate from there. Sample requests are available in the docs or integration dashboard for safe testing.
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