Authorize the GHL Contacts API for Contrast by creating an app in GHL, obtaining a client ID and secret, and completing an OAuth flow to grant Contrast the required scopes and tokens.
In Contrast, securely store the access token and refresh token, assign the readonly scope for contact data, and test endpoints to ensure proper access and data synchronization.
Key endpoints include GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, GET /contacts/:contactId/appointments, GET /contacts/, 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, and POST /contacts/:contactId/tags.
Trigger: when a contact is retrieved or updated in GHL to keep tasks in sync
Actions: fetch contact data and related tasks, then push updates to Contrast
GET /contacts/:contactId and GET /contacts/:contactId/tasks
Key fields: contactId, taskId, status
Trigger: new or updated notes in GHL
Actions: pull notes with GET /contacts/:contactId/notes and attach to the contact in Contrast
GET /contacts/:contactId/notes
Key fields: noteId, contactId
Trigger: a new contact is created in GHL
Actions: POST /contacts/ to create, then POST /contacts/:contactId/tasks to assign tasks
POST /contacts/ and POST /contacts/:contactId/tasks
Key fields: contactId, taskId, status
Automate contact lifecycle management with visual workflows in Contrast
Reduce manual data entry and keep data in sync in real time
Unify data across the GHL platform and Contrast for deeper insights
A quick glossary of endpoints, triggers, actions, and fields used in the integration.
A specific URL path in the API used to access a resource (for example, GET /contacts/:contactId).
An event that starts a workflow or data transfer (for example, a contact is updated).
An operation performed in response to a trigger (for example, POST to create a contact).
Authorization framework used to obtain access tokens securely for API calls.
Capture new leads from forms in GHL and instantly create corresponding contacts in Contrast via the API.
Automatically generate tasks in Contrast when GHL tasks are updated, keeping teammates aligned.
Aggregate notes from GHL into Contrast to create a single source of truth for customer context.
Register the app in GHL, capture the client ID and secret, and set the OAuth redirect URL for Contrast.
Complete the authorization grant, then test endpoints to verify access and scopes.
Set up data mappings, schedules, and webhooks to keep Contrast and GHL in sync.
You authenticate by creating a GHL application to obtain a client ID and secret, then completing the OAuth flow to grant Contrast the necessary scopes. Store the access and refresh tokens securely and use them to call the API. Test in a staging environment before going live to verify permissions and data access. 2/2
The key endpoints for syncing include GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, and POST /contacts/ for creation. You can also manage updates with PUT and DELETE variants for contacts and related resources. 2/2
Basic access is available with the appropriate GHL plan and app permissions. Some advanced features may require a higher tier. Check your account settings and your Contrast plan to confirm available capabilities. 2/2
Handle errors by inspecting API response codes, retrying on transient failures, and logging error details. Implement exponential backoff for retries and map common HTTP errors to actionable in-app messages. 2/2
Yes. You can pull notes and tasks for a given contact using GET /contacts/:contactId/notes and GET /contacts/:contactId/tasks. Syncing notes provides richer context in Contrast. 2/2
Fields commonly synced include contactId, name, email, phone, tasks, notes, and appointment data. Field mappings can be customized in Contrast to match your workflow. 2/2
Sync frequency can be configured in Contrast via schedules and webhooks. Real-time or near real-time syncing is possible with proper webhook setup and polling strategy. 2/2
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Complete Operations Catalog - 126 Actions & Triggers
