Luke Granger-Brown
57725ef3ec
git-subtree-dir: third_party/nixpkgs git-subtree-split: 76612b17c0ce71689921ca12d9ffdc9c23ce40b2
91 lines
3.5 KiB
Markdown
91 lines
3.5 KiB
Markdown
# Pict-rs {#module-services-pict-rs}
|
|
|
|
pict-rs is a a simple image hosting service.
|
|
|
|
## Quickstart {#module-services-pict-rs-quickstart}
|
|
|
|
the minimum to start pict-rs is
|
|
|
|
```nix
|
|
{
|
|
services.pict-rs.enable = true;
|
|
}
|
|
```
|
|
|
|
this will start the http server on port 8080 by default.
|
|
|
|
## Usage {#module-services-pict-rs-usage}
|
|
|
|
pict-rs offers the following endpoints:
|
|
|
|
- `POST /image` for uploading an image. Uploaded content must be valid multipart/form-data with an
|
|
image array located within the `images[]` key
|
|
|
|
This endpoint returns the following JSON structure on success with a 201 Created status
|
|
```json
|
|
{
|
|
"files": [
|
|
{
|
|
"delete_token": "JFvFhqJA98",
|
|
"file": "lkWZDRvugm.jpg"
|
|
},
|
|
{
|
|
"delete_token": "kAYy9nk2WK",
|
|
"file": "8qFS0QooAn.jpg"
|
|
},
|
|
{
|
|
"delete_token": "OxRpM3sf0Y",
|
|
"file": "1hJaYfGE01.jpg"
|
|
}
|
|
],
|
|
"msg": "ok"
|
|
}
|
|
```
|
|
- `GET /image/download?url=...` Download an image from a remote server, returning the same JSON
|
|
payload as the `POST` endpoint
|
|
- `GET /image/original/{file}` for getting a full-resolution image. `file` here is the `file` key from the
|
|
`/image` endpoint's JSON
|
|
- `GET /image/details/original/{file}` for getting the details of a full-resolution image.
|
|
The returned JSON is structured like so:
|
|
```json
|
|
{
|
|
"width": 800,
|
|
"height": 537,
|
|
"content_type": "image/webp",
|
|
"created_at": [
|
|
2020,
|
|
345,
|
|
67376,
|
|
394363487
|
|
]
|
|
}
|
|
```
|
|
- `GET /image/process.{ext}?src={file}&...` get a file with transformations applied.
|
|
existing transformations include
|
|
- `identity=true`: apply no changes
|
|
- `blur={float}`: apply a gaussian blur to the file
|
|
- `thumbnail={int}`: produce a thumbnail of the image fitting inside an `{int}` by `{int}`
|
|
square using raw pixel sampling
|
|
- `resize={int}`: produce a thumbnail of the image fitting inside an `{int}` by `{int}` square
|
|
using a Lanczos2 filter. This is slower than sampling but looks a bit better in some cases
|
|
- `crop={int-w}x{int-h}`: produce a cropped version of the image with an `{int-w}` by `{int-h}`
|
|
aspect ratio. The resulting crop will be centered on the image. Either the width or height
|
|
of the image will remain full-size, depending on the image's aspect ratio and the requested
|
|
aspect ratio. For example, a 1600x900 image cropped with a 1x1 aspect ratio will become 900x900. A
|
|
1600x1100 image cropped with a 16x9 aspect ratio will become 1600x900.
|
|
|
|
Supported `ext` file extensions include `png`, `jpg`, and `webp`
|
|
|
|
An example of usage could be
|
|
```
|
|
GET /image/process.jpg?src=asdf.png&thumbnail=256&blur=3.0
|
|
```
|
|
which would create a 256x256px JPEG thumbnail and blur it
|
|
- `GET /image/details/process.{ext}?src={file}&...` for getting the details of a processed image.
|
|
The returned JSON is the same format as listed for the full-resolution details endpoint.
|
|
- `DELETE /image/delete/{delete_token}/{file}` or `GET /image/delete/{delete_token}/{file}` to
|
|
delete a file, where `delete_token` and `file` are from the `/image` endpoint's JSON
|
|
|
|
## Missing {#module-services-pict-rs-missing}
|
|
|
|
- Configuring the secure-api-key is not included yet. The envisioned basic use case is consumption on localhost by other services without exposing the service to the internet.
|