🍔 Food Delivery & QSR · Sequence
Food Order to Doorstep Sequence
Everything that happens between a customer tapping Place Order and the food arriving: payment, restaurant acceptance, rider assignment, pickup and delivery.
Drawing diagram…
What this diagram shows
- Rider is assigned while the food is being prepared
- Restaurant rejection triggers an automatic refund
- Customer sees each step as a live status update
Prompt used
Food order sequence: the customer places the order and pays, the order service sends it to the restaurant app. If the restaurant accepts, it starts preparing and the dispatch service assigns the nearest rider, who goes to the restaurant, picks up the order and delivers it; the customer sees live status at each step. If the restaurant rejects, the customer is refunded automatically.
Mermaid code
sequenceDiagram
actor C as Customer
participant O as Order Service
participant P as Payment Service
participant R as Restaurant App
participant D as Dispatch Service
participant Rd as Rider App
C->>O: Place order
O->>P: Charge Rs 480
P-->>O: Paid
O->>R: New order
alt Restaurant accepts
R-->>O: Accepted, 15 min
O-->>C: Preparing your food
O->>D: Find rider
D->>Rd: Pickup request
Rd-->>D: Accepted
O-->>C: Rider assigned
Rd->>R: Arrive and pick up
Rd->>O: Picked up
O-->>C: On the way (live map)
Rd->>C: Deliver
Rd->>O: Delivered
else Restaurant rejects
R-->>O: Rejected
O->>P: Refund
O-->>C: Order cancelled, refund started
endRelated templates
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Food Order Status State Machine
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Restaurant Kitchen Order Flow
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Food Delivery Menu and Orders Schema
A schema for a food delivery platform: restaurants, menus, items with add-ons, customers, orders, order items and riders.
Food Delivery Peak-Hour Scaling
How a food delivery platform scales for lunch and dinner peaks: pre-scaling, autoscaling services, sharded databases and a surge-protected dispatch.
Cloud Kitchen Operations Platform
A cloud kitchen that runs several virtual brands: orders from aggregators, a kitchen display system, inventory and dispatch.