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Arkie-Library-Frontend/docs/posts-title-api.md

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# Posts title fields for list/card surfaces
Back-end should provide short title fields on `Post` responses so front-end can render concise list/card titles without using the full Telegram/body text.
## Product requirement
Any list/card surface that is meant for quick browsing should display a short `title`, not the full `text` body. Full Telegram-style body copy is too noisy for compact surfaces.
This includes:
- Home **官方推荐** carousel/cards
- Home **最新资料**
- Home **热门资料** ranking list
- `/official-recommendations`
- `/browse` (**全部资料**)
- `/category/:slug`
- Search result previews/lists
The full body text should remain available as `text` for message/detail rendering, expansion, and search indexing.
## Current front-end implementation status
Already consuming `title` through `postToResource` / `Resource.title`:
- Home **官方推荐** carousel/cards
- `/official-recommendations`
- Home **热门资料** ranking list
Pending front-end follow-up after the back-end fields are available:
- Home **最新资料**
- `/browse` (**全部资料**)
- `/category/:slug`
- Search results
Those pending surfaces currently render `text` via `MessageBubble`. Once the back-end consistently provides `title`, front-end can decide the final UI treatment, but the desired display content for compact browsing is the short `title`.
## Affected endpoints
Any endpoint returning `Post` items should include a short title when available:
- `GET /api/posts`
- `GET /api/posts/search`
- `GET /api/posts/recommended`
- `GET /api/posts/:id`
## Recommended response shape
```jsonc
{
"id": "string",
"title": "ARK 2026 共识加速计划", // optional global fallback title
"text": "完整正文 / Telegram-style body text...",
"localizations": {
"zh": {
"title": "ARK 2026 共识加速计划",
"text": "完整中文正文..."
},
"en": {
"title": "ARK 2026 Consensus Acceleration Plan",
"text": "Full English body..."
}
}
}
```
## Front-end fallback order
For resource card/list `Resource.title`, front-end reads:
1. `localizations[currentLang].title`
2. `post.title`
3. first non-empty line of localized/full `text`
4. first attachment filename
5. `post.id`
So backend can roll this out gradually: old posts without `title` still render, but resource card/list surfaces reduce long body text to its first non-empty line instead of displaying the full paragraph.
## Requirement
Do **not** put an entire body paragraph into `title`. `title` should be concise enough for a two-line card/list title.
Examples:
| Good title | Bad title |
| --- | --- |
| `ARK 2026「共识加速计划」邀请王霸榜` | Full event body with links, schedule, rules, and hashtags |
| `ARK 主网核心合约地址BSC链` | Full contract explainer paragraph |
| `ARK灵魂五问完整视频` | Full video caption text |