Authenticate to the Contacts API by obtaining an OAuth access token with the scope ‘contacts.readonly’. Use your GHL developer credentials and include the access token in the Authorization header for each request.
To authorize TrainerCentral with GHL, register your app in the GHL developer portal, configure redirect URIs, and request the appropriate scopes for contacts access.
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; contacts.write; 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: new or updated contact in TrainerCentral
Actions: create or update contact in GHL; update related tasks and notes as needed
Typical methods and paths: GET /contacts/:contactId, POST /contacts/, PUT /contacts/:contactId
Key fields: contactId, email, firstName, lastName, phone
Trigger: task or note created/updated in TrainerCentral
Actions: create or update tasks and notes in GHL under the corresponding contact
Endpoints: POST /contacts/:contactId/tasks, POST /contacts/:contactId/notes
Key fields: contactId, taskId, noteId, id
Trigger: appointment scheduled in TrainerCentral
Actions: create or update appointments in GHL for the associated contact
Endpoints: POST /contacts/:contactId/appointments, PUT /contacts/:contactId/appointments/:appointmentId
Key fields: contactId, appointmentId, startTime, endTime
No-code setup: configure app credentials and scopes without writing code.
Real-time data sync between TrainerCentral and GHL for accurate records.
Scalable integration that grows with your training business.
This section covers typical data elements and processes: contacts, tasks, notes, appointments, and the endpoints used to read and write them.
People stored in your GHL CRM with contact details and associated records.
Assigned actions or to-dos linked to a contact.
Text entries attached to a contact to capture history.
Scheduled meetings or sessions tied to a contact.
Automatically enroll new trainees into GHL Contacts when they are added in TrainerCentral, triggering a new contact record.
Sync TrainerCentral tasks to GHL tasks so teams stay aligned on to-dos and deadlines.
Attach TrainerCentral notes to GHL contact notes for complete history and context.
Create an app in the GHL developer portal and obtain the client ID and secret.
Request the necessary scopes (including contacts.readonly) and set your redirect URI.
Test endpoints with sample data and monitor results before going live.
Authentication for the integration relies on OAuth 2.0. You’ll obtain an access token scoped to the Contacts API (for example, using the contacts.readonly scope) and include it in the Authorization header of each request. Keep tokens secure and rotate them according to your security policy. If you require write access, request the appropriate scope and handle token refresh automatically.
No-code options are available through connectors and automation platforms that support GHL and TrainerCentral integrations. If you’re using a middleware tool, you can map fields and trigger actions without custom code. For advanced scenarios, light scripting can help handle edge cases.
For basic syncing, you’ll typically use GET /contacts/:contactId to pull data and POST /contacts/ to create. Additional endpoints for tasks, notes, and appointments enable richer synchronization. Start with reading a contact, then layer in related resources as needed.
Yes, you can write data back to GHL from TrainerCentral by using the write endpoints (e.g., POST /contacts/, POST /contacts/:contactId/tasks). Ensure your OAuth token has the necessary scopes and that you respect rate limits and data integrity checks.
Test the integration in a sandbox or staging environment. Use sample records to verify CRUD operations across contacts, tasks, notes, and appointments. Monitor logs for errors and verify data consistency after each operation.
Rate limits depend on your GHL plan and API usage. Plan for bursts during initial syncs and implement backoff strategies in your integration. Use pagination for large result sets and batch requests when supported.
API documentation is available in the GHL developer portal. It includes endpoint details, authentication instructions, and example requests. Refer to TrainerCentral integration guides for app-specific usage and best practices.
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