I am looking for a gem or solution to generate image in controller response.
It would be nice if it's possible to do in controller like that:
respond_to :html, :png def show ... respond_to do |format| format.html format.png { ??? } # some html to png converter end end
When the png format is requested the response handles with template:
#show.png.haml %h1 Some title %p Some content
The result should be an image.
I know about pdf generation solutions PDFKit, prawn and am looking for image generation.
Does anybody know working solution/example? Any starting point would be very appreciated.
Check out here: http://weblog.rubyonrails.org/2006/12/19/using-custom-mime-types
Mime::Type.register "image/png", :png # then in your controller action def show respond_to do |format| format.html { } format.png { } end end
UPD
What about image generating. If you need to convert your HTML page into image. You can use wkhtmltoimage
http://code.google.com/p/wkhtmltopdf/downloads/detail?name=wkhtmltoimage-0.10.0_beta2-static-amd64.tar.bz2&can=4&q=
There is no gem like pdfkit for wkhtmltopdf but it is easy to use.
Also you can use pdfKIT gem and after that convert PDF to PNG with imagemagick. That is quite easy too.
UPD
Istead of using SnapShot I prefer to use IMGKit gem
https://github.com/csquared/IMGKit
