Google Apps Script return image in doGet function -


i unable figure out how return image in google apps script. i've gone through lot of documentation , unable find clear.

in php, equivalent function be:

header('content-type: image/gif'); echo "\x47\x49\x46\x38\x37\x61\x1\x0\x1\x0\x80\x0\x0\xfc\x6a\x6c\x0\x0\x0\x2c\x0\x0\x0\x0\x1\x0\x1\x0\x0\x2\x2\x44\x1\x0\x3b";

i've tried functions like:

function doget() {   return contentservice.createtextoutput("\x47\x49\x46\x38\x37\x61\x1\x0\x1\x0\x80\x0\x0\xfc\x6a\x6c\x0\x0\x0\x2c\x0\x0\x0\x0\x1\x0\x1\x0\x0\x2\x2\x44\x1\x0\x3b"); } }

but not seem work. want return 1x1 pixel image.

google apps script contentservice supports returning plain text, atom, csv, ical, javascript, json, rss, vcard, , xml content.

it depends on user case, can use htmlservice , data uri scheme embed image:

gs:

function doget(e) {   template = htmlservice.createtemplatefromfile('html');   return template.evaluate().setsandboxmode(htmlservice.sandboxmode.iframe); }

html:

<!doctype html> <html>   <head>     <base target="_top">   </head>   <body>     <img src="data:image/gif;base64,r0lgodlhaqabaiaaaauebaaaacwaaaaaaqabaaacakqbads=">   </body> </html>

also can use html5 , canvas:

<canvas id="mycanvas" width="1" height="1"></canvas>

or javascript create gif


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