Webhook Delivery
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Webhook Delivery
M Express sends the event; the customer confirms receipt
PARTICIPANT
M Express
PARTICIPANT
Customer server
event delivery
response
authenticated media request
2xx confirms receipt, not completion of customer processing
POST signed event
HTTP 2xx
received
GET event media URL
[composite media
credential]
photo / signature bytes
private, no-store
opt: EVT430 media
[EVT430 received and media needed] (steps 3-4)
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