---
title: "Create a presigned upload URL for a template image"
method: POST
path: "/assets"
tags: ["Templates"]
---

# Create a presigned upload URL for a template image

`POST /assets`

## Request

- Base URL: `https://api.groundmail.dev`
- URL: `https://api.groundmail.dev/assets`
- Auth: HTTP bearer

## Request body

- object
  - `content_type` 'image/png' | 'image/jpeg' | 'image/gif' | 'image/webp', required
  - `bytes` integer, required
  - `width` integer
  - `height` integer

## Response `201`

Presigned upload created

- object
  - `asset` Asset, required
    - `id` string, uuid, required
    - `key` string, required
    - `url` string, uri, required
    - `content_type` string, required
    - `bytes` integer, required
    - `width` integer, nullable
    - `height` integer, nullable
    - `created_at` string, date-time, required
  - `upload_url` string, uri, required
  - `upload_headers` object, required

## Other responses

- `400`: Invalid request
- `503`: Uploads not configured

---

[API](https://skmtc.dev/groundmail/apis/groundmail-api.md) · [All operations](https://skmtc.dev/groundmail/apis/groundmail-api/llms.txt) · [OpenAPI document](https://skmtc.dev/groundmail/apis/groundmail-api/revisions/479821c9fecf?raw)