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puppeteer-social-image-lambda

v0.5.0

Published

Create dynamic social share images using HTML + CSS via puppeteer.

Downloads

4

Readme

puppeteer-social-image

NPM JavaScript Style Guide

Create dynamic social share images using HTML + CSS via puppeteer. For a hosted solution, see awesome-social-share.

img

Installation

npm i puppeteer-social-image --save

Usage

Render "basic" template

import renderSocialImage from "puppeteer-social-image";

renderSocialImage({
  template: "basic",
  templateParams: {
    backgroundImageUrl:
      "https://images.unsplash.com/photo-1557958114-3d2440207108?w=1950&q=80",
    title: "Hello, world"
  },
  output: "image.png",
  size: "facebook"
});

Render custom template

import renderSocialImage from "puppeteer-social-image";

renderSocialImage({
  template: "Pretty",
  templateBody: '<div class="Main">Hello, {{name}}!</div>',
  templateStyles: ".Main { color: blue; }",
  output: "image.png",
  size: "facebook"
});

API

renderSocialImage

Returns Promise<Buffer>.

Type: function (opts): Promise

  • opts (object) Configuration options
  • opts.template (string) Name of a prebuild template. Valid values are:
    • basic (default)
  • opts.templateParams (object) Params to be passed to the template. If using prebuilt templates, see below for APIs.
  • opts.templateBody (string?) Handlebars template to render in the body for a custom template. Populated with templateParams.
  • opts.templateStyles (string?) CSS to use for a custom template. Passed to the head.
  • opts.customTemplates (object?) Define multiple custom templates
    • opts.customTemplates[key] (string) Name for the customTemplate
    • opts.customTemplates[key].templateBody(string) Handlebars template to render in the body for this custom template. Populated with templateParams.
    • opts.customTemplates[key].templateBody(string) CSS to use for this custom template. Passed to the head
  • opts.output (string?) Path to write image
  • opts.size (string?) Preset size for the image. Valid values are:
    • facebook
    • twitter (default)

Templates

Basic

A basic template to show some short text overlaying an image.

basic template

API

  • title (string) Title text for the image
  • backgroundImageUrl (string?) URL for the background image
  • backgroundImageAnchor (string?, default "C") Anchor point for the background image. Valid options are C, N, NE, E, SE, S, SW, W or NW.
  • backgroundImageOverlay (boolean?, default true) Add a dark overlay on top of the background image
  • background (string?) CSS background prop. Prefer backgroundImageUrl if using image.
  • color (string?, default "white") Color for the title
  • fontFamily (string?, default '"Avenir Next", "Lato", "Helvetica Neue", sans-serif') Font family
  • fontSize (string?, default "128px") Font size

License

MIT © Chris Villa