Camera Poster

Camera Poster is a lightweight npm package that lets you easily add a camera viewport to your web application. With just a few lines of code, you can spawn a camera canvas in the browser and allow your users to snap a picture and send it via a post request to a specified endpoint. Optionally you can handle the response by specifying a callback function.

This library is intentionally build with vanilla JS in order to keep it lightweight, and simple in terms of dependencies.

Installation

To install Camera Poster, simply run the following command:

npm install @pimred/camera-poster

Usage

To use Camera Poster, you need to import it into your project and call the setup function with the appropriate parameters. Here's an example of how to do that:

import { setupCamera } from '@pimred/camera-poster'
import '@pimred/camera-poster/style.css'

/**
 * Sets up a camera preview and allows the user to take a photo to be uploaded to a specified URL.
 *
 * @param {HTMLElement} spawnerButton - The HTML element that will spawn the camera module when clicked.
 * @param {string} postUrl - The URL to which the photo will be uploaded.
 * @param {function} callbackFunction - The function to be called after the photo is uploaded. Takes a single parameter, which is the data returned from the server.
 * @returns {void}
 */
setupCamera(document.querySelector('#button'), 'http://<where-to-send-image>/', (data) => { console.log(data) })

In this example, we call the setup function, and pass in three options:

• spawnerButton: an HTML element to which an event listener will be attached. Clicking on it will spawn the camera utility.
• postUrl: the URL where the captured image will be sent via a post request.
• callbackFunction: Optional, handles the response data of the endpoint at postUrl.

API

Camera Poster provides the following methods:

setupCamera()

Attaches an event listener to the specified HTML element, which will spawn the camera utility on click.

Development

1. Increment version in package.json

2. Build the dist files npm run build

3. Publish to npm npm publish --access public

License

Camera Poster is released under the MIT License. See LICENSE file for details.