> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lala.ist/llms.txt
> Use this file to discover all available pages before exploring further.

# Save a check-in

> Creates or replaces the entry for the day and type — the client never has to ask
whether one exists. Submit the whole flow at the end, and resubmit the same way after
an edit; fields left out of the body read back as unanswered.

Every step is skippable: an empty body still records that the student showed up, and
"Atla ve kaydet" is a body without `ready`. Feelings accept the key or the Turkish
chip label. Photos go through POST /api/media first, then arrive here as `mediaIds`;
anything not ready is dropped.

Saving a check-in counts as meaningful activity for the streak.



## OpenAPI

````yaml /api-reference/openapi.json put /api/checkins/{date}/{type}
openapi: 3.1.0
info:
  title: Lala Client API
  description: >-
    The HTTP API behind Lala, the AI study companion for Turkish YKS and LGS
    students. This document is generated from the Zod schemas that validate each
    request at runtime. Do not hand-edit openapi.json. Student-visible text is
    Turkish. All identifiers are English.
  version: 1.0.0
servers:
  - url: https://client-api.lala.ist
    description: production
  - url: http://localhost:3000
    description: local dev
security:
  - supabaseJwt: []
tags:
  - name: chat
    description: The chat stream, the message history, and reactions
  - name: media
    description: Upload and read message attachments
  - name: plan
    description: The study planner — blocks of work on a day
  - name: journey
    description: Deneme results, topic performance, study-hours stats, and the streak
  - name: profile
    description: The student profile and onboarding
  - name: devices
    description: Push notification devices
  - name: system
    description: Health check
paths:
  /api/checkins/{date}/{type}:
    put:
      tags:
        - checkins
      summary: Save a check-in
      description: >-
        Creates or replaces the entry for the day and type — the client never
        has to ask

        whether one exists. Submit the whole flow at the end, and resubmit the
        same way after

        an edit; fields left out of the body read back as unanswered.


        Every step is skippable: an empty body still records that the student
        showed up, and

        "Atla ve kaydet" is a body without `ready`. Feelings accept the key or
        the Turkish

        chip label. Photos go through POST /api/media first, then arrive here as
        `mediaIds`;

        anything not ready is dropped.


        Saving a check-in counts as meaningful activity for the streak.
      operationId: putApiCheckinsByDateByType
      parameters:
        - schema:
            type: string
          in: path
          name: date
          required: true
        - schema:
            type: string
          in: path
          name: type
          required: true
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CheckInPutBody'
      responses:
        '200':
          description: The saved entry
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckIn'
        '400':
          description: The entry or the range is not valid
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: The token is missing, expired, or invalid
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    CheckInPutBody:
      type: object
      properties:
        mood:
          anyOf:
            - type: integer
              minimum: 1
              maximum: 5
            - type: 'null'
        feelings:
          description: A `CheckInFeeling` or its Turkish label. Unknown feelings are a 400.
          maxItems: 10
          type: array
          items:
            type: string
            minLength: 1
            maxLength: 40
        summary:
          anyOf:
            - type: string
              maxLength: 4000
            - type: 'null'
        ready:
          anyOf:
            - type: boolean
            - type: 'null'
        mediaIds:
          description: >-
            Media uploaded through POST /api/media. Anything not ready is
            dropped.
          maxItems: 5
          type: array
          items:
            type: string
            format: uuid
            pattern: >-
              ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
      description: >-
        The whole entry, replaced on every PUT. Every field is optional — each
        step of the flow is skippable, and a field left out reads back as
        unanswered.
    CheckIn:
      type: object
      properties:
        id:
          type: string
          format: uuid
          pattern: >-
            ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
        date:
          type: string
          description: Local Istanbul calendar date, `YYYY-MM-DD`.
        type:
          $ref: '#/components/schemas/CheckInType'
        mood:
          anyOf:
            - type: integer
              minimum: -9007199254740991
              maximum: 9007199254740991
            - type: 'null'
          description: '"Bugün nasıl geçti?" — 1 (worst) to 5 (best). Null when skipped.'
        feelings:
          type: array
          items:
            $ref: '#/components/schemas/CheckInFeeling'
          description: In the order the student tapped.
        summary:
          anyOf:
            - type: string
            - type: 'null'
          description: The free-text summary of the day.
        ready:
          anyOf:
            - type: boolean
            - type: 'null'
          description: >-
            The closing yes/no. Evening: "Yatmaya hazır hissediyor musun?",
            morning: "Güne hazır hissediyor musun?". Null when the student
            tapped "Atla ve kaydet".
        media:
          type: array
          items:
            $ref: '#/components/schemas/Media'
          description: Photos attached to the summary.
        source:
          type: string
          enum:
            - manual
            - call
            - chat
          description: '`call` or `chat` when Lala filled the entry from a conversation.'
        createdBy:
          type: string
          enum:
            - student
            - lala
        completedAt:
          type: string
          format: date-time
          pattern: >-
            ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
          description: When the flow was first finished. Edits move `updatedAt`, not this.
        createdAt:
          type: string
          format: date-time
          pattern: >-
            ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
        updatedAt:
          type: string
          format: date-time
          pattern: >-
            ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
      required:
        - id
        - date
        - type
        - mood
        - feelings
        - summary
        - ready
        - media
        - source
        - createdBy
        - completedAt
        - createdAt
        - updatedAt
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
        issues:
          description: >-
            Present only on a 400 raised by request validation, capped at 10
            entries. Every other error carries `error` alone.
          type: array
          items:
            $ref: '#/components/schemas/ValidationIssue'
      required:
        - error
      description: Error body. `error` is a short English string.
    CheckInType:
      type: string
      enum:
        - morning
        - evening
      description: '`morning` is the Sabah Özeti, `evening` is the Akşam Z-Raporu.'
    CheckInFeeling:
      type: string
      enum:
        - brave
        - content
        - proud
        - loving
        - excited
        - calm
        - happy
        - motivated
        - grateful
        - relieved
      description: >-
        A feeling chip. Turkish labels, in order: Cesur, Memnun, Gururlu, Sevgi
        dolu, Heyecanlı, Sakin, Mutlu, Motive, Minnettar, Rahatlamış. On write,
        the Turkish name is accepted too.
    Media:
      type: object
      properties:
        id:
          type: string
          format: uuid
          pattern: >-
            ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
        kind:
          $ref: '#/components/schemas/MediaKind'
        mimeType:
          type: string
        sizeBytes:
          anyOf:
            - type: integer
              minimum: -9007199254740991
              maximum: 9007199254740991
            - type: 'null'
        width:
          anyOf:
            - type: integer
              minimum: -9007199254740991
              maximum: 9007199254740991
            - type: 'null'
        height:
          anyOf:
            - type: integer
              minimum: -9007199254740991
              maximum: 9007199254740991
            - type: 'null'
        durationMs:
          anyOf:
            - type: integer
              minimum: -9007199254740991
              maximum: 9007199254740991
            - type: 'null'
        fileName:
          anyOf:
            - type: string
            - type: 'null'
        status:
          type: string
          enum:
            - pending
            - ready
          description: '`ready` when the bytes are in storage. Only ready media can be sent.'
        url:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Short-lived signed URL, null while the media is pending. It expires
            — read the media or the message again for a new one. Do not cache
            it.
        urlExpiresAt:
          anyOf:
            - type: string
              format: date-time
              pattern: >-
                ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
            - type: 'null'
        createdAt:
          type: string
          format: date-time
          pattern: >-
            ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
      required:
        - id
        - kind
        - mimeType
        - sizeBytes
        - width
        - height
        - durationMs
        - fileName
        - status
        - url
        - urlExpiresAt
        - createdAt
    ValidationIssue:
      type: object
      properties:
        path:
          type: string
          description: Dotted path to the offending field, empty at the root.
        message:
          type: string
      required:
        - path
        - message
    MediaKind:
      type: string
      enum:
        - image
        - audio
        - video
        - file
  securitySchemes:
    supabaseJwt:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: 'Supabase access token: `Authorization: Bearer <token>`'

````

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