---
title: "Replace the diary's daily writing prompts with this set: a day left out loses its prompt. At most 60 days, one prompt each, 1-500 characters after trimming. Same permission as PATCH /diaries/{diaryId} (diary.update)."
method: PUT
path: "/diaries/{diaryId}/prompts"
tags: ["Diaries"]
---

# Replace the diary's daily writing prompts with this set: a day left out loses its prompt. At most 60 days, one prompt each, 1-500 characters after trimming. Same permission as PATCH /diaries/{diaryId} (diary.update).

`PUT /diaries/{diaryId}/prompts`

## Request

- Base URL: `https://whatareyoudo.ing/api/v1`
- URL: `https://whatareyoudo.ing/api/v1/diaries/{diaryId}/prompts`
- Auth: HTTP bearer

## Path parameters

- `diaryId` string, uuid, required

## Request body

- ReplaceDiaryPromptsRequest
  - `prompts` object[], required
    - `day` string, required
    - `prompt` string, required

## Response `200`

OK -- the set as stored

- object
  - `data` DiaryPrompt[], required
    - `day` string, required: The diary-local calendar day, `YYYY-MM-DD`.
    - `prompt` string, required
  - `meta` object, required
    - `requestId` string, required

## Other responses

- `404`: Not found
- `422`: Invalid set (a bad day, an empty or over-long prompt, a day twice, over 60)

## Changes

- **2026-10-20** `5babd76752f2`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/whatareyoudo/apis/whatcha-api/changes/diaries/:diaryId/prompts/put.md)

---

[API](https://skmtc.dev/whatareyoudo/apis/whatcha-api.md) · [All operations](https://skmtc.dev/whatareyoudo/apis/whatcha-api/llms.txt) · [OpenAPI document](https://skmtc.dev/whatareyoudo/apis/whatcha-api/revisions/48dd8a54abea?raw)