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gphoto2-web CI License

REST web API for the libgphoto2 library. You can use it to take pictures, previews (handy for implementing poor man's liveview feature), control/obtain various camera settings, and access connected camera's filesystem - all via JSON-based requests.

Goals

  • Providing a generic camera REST API
  • Providing a feature parity with libgphoto2 library
  • Being a testbed for gphoto2.cr shard
  • Clean and readable code ✨
  • Rock-solid stability πŸͺ¨
  • High performance πŸš€

Non-Goals

  • Including customizable business logic
  • Including camera-specific features

Features

🐻 Necessities

  • Multiple cameras support
  • Camera detection
  • Camera identification
  • Camera connection reloading
  • Camera ability detection
  • Image capture 1
  • Live-view 1
  • Configuration reading/modification 1
  • Filesystem access 1

🦊 Creature Comforts

  • Folder download as ZIP archive 1
  • Folder creation 1
  • Folder removal 1
  • File download (in several formats 2) 1
  • File preview (incl. raw camera formats) 1
  • File upload 1
  • File removal 1

Setup

Tip

Passing SENTRY_DSN env var while building/running will provide you with error reporting

  • Run shards install in order to install required dependencies
  • Next, execute shards build [--release] [-Dpreview_mt] to build the binary
  • Now you're ready to go!
    • It's as easy as running ./bin/server in your terminal
    • Checking the http://localhost:3000/cameras endpoint will give you a list of detected cameras

Usage

Available endpoints

/cameras

  • GET /cameras

    Parameters:

    name value description
    reload true Reloads the camera list beforehand

/cameras/:id

  • GET /cameras/:id

  • GET /cameras/:id/capture

    Parameters:

    name value description
    delete true Deletes the image after capture
  • GET /cameras/:id/preview

  • GET /cameras/:id/exit

/cameras/:id/config

  • GET /cameras/:id/config

    Parameters:

    name value description
    flat true Returns one-dimensional configuration map, keyed by widget name
  • PATCH /cameras/:id/config

    Example request:

    curl \
        -X PATCH \
        -H "Accept: application/json" \
        -H "Content-Type: application/json" \
        -d '{"whitebalance": "Automatic", "iso": 800, "f-number": "f/4.5"}' \
        "http://localhost:3000/cameras/5a337150-30ba-40fd-adc2-b9ffacdad188/config"

/cameras/:id/config/:widget

  • GET /cameras/:id/config/:widget

  • PATCH /cameras/:id/config/:widget

    Example request:

    curl \
        -X PATCH \
        -H "Accept: application/json" \
        -H "Content-Type: application/json" \
        -d '{"value": "Automatic"}' \
        "http://localhost:3000/cameras/5a337150-30ba-40fd-adc2-b9ffacdad188/config/whitebalance"

/cameras/:id/fs

  • GET /cameras/:id/fs

  • GET /cameras/:id/fs/*path

  • DELETE /cameras/:id/fs/*path

  • PUT /cameras/:id/fs/*path

    Example request:

    curl \
        -X PUT \
        -H "Accept: application/json" \
        "http://localhost:3000/cameras/5a337150-30ba-40fd-adc2-b9ffacdad188/fs/store_00010001/DCIM007"

/cameras/:id/blob

  • GET /cameras/:id/blob/*filepath

    Parameters:

    name value description
    download true Makes the browser download the image instead of displaying it
    format jpeg / webp / avif / png / auto Returns the image in a given format, auto chooses between the original format, if it's supported by the browser, and falls back to jpeg otherwise
    width integer Returns the image scaled down to the given width
    height integer Returns the image scaled down to the given height
  • DELETE /cameras/:id/blob/*filepath

  • PUT /cameras/:id/blob/*path

    Example request:

    curl \
        -X PUT \
        -H "Accept: application/json" \
        -F file="@/path/to/file.jpg" \
        "http://localhost:3000/cameras/5a337150-30ba-40fd-adc2-b9ffacdad188/blob/store_00010001/DCIM007/IMG_0001.jpg"

/cameras/:id/zip

  • GET /cameras/:id/zip
  • GET /cameras/:id/zip/*path

Development

Tip

You can use a smartphone for basic development and testing.

  • Pass DEBUG=1 in shards build step to compile-in the debug support. Afterwards you can use it by passing DEBUG=1 env variable when running the server (DEBUG=1 ./bin/server)

Contributing

  1. Fork it (https://github.com/Sija/gphoto2-web/fork)
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

Contributors

  • Sija Sijawusz Pur Rahnama - creator, maintainer

Footnotes

  1. Works only with supported cameras ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11

  2. JPEG, WEBP, AVIF, PNG ↩