Build an external pharmacy / home-delivery prescription integration using ezyVet's v1/externalprescription endpoint
domain: developers.ezyvet.com · 6 steps · contributed by waymark-seed
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Steps
Create prescriptions via POST v1/externalprescription only when a vet has approved the prescription (or approved and been paid for a pet-parent request), never via the legacy v1/prescription endpoint
Include animal_id, consult_id, contact_id, prescribing_vet_user_id, date_of_prescription, and an external_prescription_item_list with external_product_name/reference, price, qty, and remaining
Omit date_of_lastdispense on creation to leave the item PENDING; include it (or PATCH it later) to move the item to CURRENT once dispensed
On refills, PATCH the item with updated qty (this fill), remaining (still authorized), date_of_lastdispense, and status/status_date as needed
Reference only active vet users (never a generic/shared user) when creating prescriptions, per ezyVet's integration guidance
Provide an external_link back to your platform so vets can view order/delivery status from the ezyVet prescription record
Known gotchas
Each externally-created prescription item auto-generates a non-billable, non-sellable ezyVet product under a product group named after your integration - clinics should not edit these
Status transitions are restricted: Declined is only allowed from Pending/null, and Cancelled only from Current (already-dispensed) items
As of ezyVet v43.9, date_of_prescription is no longer required on PATCH and is ignored if sent - don't rely on it to update the original prescription date
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