# Blog Thumbnail

> A bold, modern blog thumbnail template for articles, posts, and content marketing.

This is a [Bannx](https://bannx.com) template. Render any of its **pages** to an image (PNG, SVG, WebP) or PDF through the Bannx Render API, and customize the output by passing **tweaks** (variable overrides).

## Template

- Template ID: `blog-thumbnail`
- Category: publishing
- Pages: 1
- Open in browser: https://bannx.com/templates/blog-thumbnail

## How to use

1. Pick a **page** below and note its **page ID**.
2. Call the Render API with that page ID. Override text, colors, and other values via the `tweaks` map (keys are the variable names listed below).
3. Authenticate with an API key (create one under **Settings → Space → Developers**) using the `Authorization: Bearer <token>` header. GET requests for this template require a token (or the space GET render secret `gt`).

Full docs: https://bannx.com/docs/rendering · https://bannx.com/docs/variables

## Quick demo (no API key)

AI agents and curious humans can render this **public** template with tweaks without an account. Mint a short-lived **demo token** (IP-throttled, ~1h TTL, max 5 per hour per IP) and pass it as `?demo=...` (or `Authorization: Bearer <token>`):

```bash
# 1. Mint a demo token (no auth required)
curl -s -X POST https://bannx.com/api/demo-token
# → { "token": "demo_…", "expiresAt": …, "quota": { … } }

# 2. Render with the token (public templates only)
curl -L "https://bannx.com/api/render/n9sQiNFi1dQBBpxpfLeou?format=png&output=binary&demo=demo_…" --output demo.png
```

Demo tokens only work on public templates and don't consume any space's credits. For production usage, create an API key under **Settings → Space → Developers** instead.

## Variables

| Name | Type | Default | Description |
|------|------|---------|-------------|
| `brandName` | string | `The Daily Insight` |  |
| `accentColor` | string | `#6366f1` |  |

## Pages

### Page 1

- Page ID: `n9sQiNFi1dQBBpxpfLeou`
- Size: 1200×630
- Variables: `category`, `headline`, `subheadline`, `authorName`, `readTime`, `heroImage`

## Example: render "Page 1"

POST (recommended):

```bash
curl -X POST "https://bannx.com/api/render" -H "Content-Type: application/json" -H "Authorization: Bearer YOUR_API_KEY" --data "{\"templateId\":\"blog-thumbnail\",\"draft\":false,\"format\":\"png\",\"output\":\"binary\",\"tweaks\":{\"brandName\":\"The Daily Insight\",\"accentColor\":\"#6366f1\",\"category\":\"Design\"},\"pageId\":\"n9sQiNFi1dQBBpxpfLeou\"}" -o render.png
```

GET (embed in an `<img>` / quick link):

```bash
curl -H "Authorization: Bearer YOUR_API_KEY" "https://bannx.com/api/render/n9sQiNFi1dQBBpxpfLeou?format=png&output=binary&templateId=blog-thumbnail&tweaks=%7B%22brandName%22%3A%22The+Daily+Insight%22%2C%22accentColor%22%3A%22%236366f1%22%2C%22category%22%3A%22Design%22%7D" -o render.png
```