# Sequence: who calls whom, in order. Participants are columns;
# messages run top to bottom by y.
schema_version: 1
diagram_type: sequence
meta:
  title: Login Request
  output: sequence.html
  viewBox: [960, 520]
participants:
  - id: client
    type: external
    label: Client
  - id: api
    type: backend
    label: API
  - id: auth
    type: security
    label: Auth Service
  - id: db
    type: database
    label: User Store
messages:
  - from: client
    to: api
    y: 160
    label: POST /login
    variant: emphasis
  - from: api
    to: auth
    y: 210
    label: verify credentials
  - from: auth
    to: db
    y: 260
    label: find user
  - from: db
    to: auth
    y: 310
    label: user record
    variant: return
  - from: auth
    to: api
    y: 360
    label: token
    variant: return
  - from: api
    to: client
    y: 410
    label: 200 OK + token
    variant: return