Webhook Data Routing & Middleware Mapper
Middleware pipelines parsing complex nested JSON webhooks into clean CRM contact fields.
How Data Flows
The Operational Bottleneck
An external custom application was emitting complex nested JSON webhooks that standard automation steps could not parse directly into GoHighLevel standard fields.
System Architecture & Logic
Constructed an intermediate webhook transformation workflow that un-nests data structures, normalizes phone numbers to E.164 format, and maps secondary array keys into dedicated GoHighLevel custom text and dropdown fields.
What I Built & Tested
Inbound HTTP webhook step parsing multi-level nested JSON keys
Phone number sanitization and E.164 formatting rule logic
Bulk contact custom field update mapping without duplicating contact records
Fallback error alert trigger sending admin notifications upon invalid payload structures
Inside the Build
Middleware Webhook Field Mapping
Extracting specific JSON key-values into corresponding GHL contact profile variables.
See how the system works.
A walkthrough of the architecture, workflow logic, integrations, and implementation.
Walkthrough Video: Webhook Data Routing & Middleware Mapper
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Verified Operational Results
Enabled custom app data to flow seamlessly into GoHighLevel CRM
Eliminated corrupted phone/email formats in contact records
Provided robust error logging for failed API webhook events