https://github.com/GoogleChrome/puppeteer#usage in clojurescript

.gitignore

node_modules

example.png

gistfile1.txt

yarn init
yarn add puppeteer
yarn add q

brew install lumo
lumo puppeteer.cljs

package.json

{
  "name": "puppeteer-poc",
  "version": "1.0.0",
  "main": "index.js",
  "repository": "git@gist.github.com:ec1725b22642d9344e294c701de18fb2.git",
  "author": "apeckham <apeckham@gmail.com>",
  "license": "MIT",
  "dependencies": {
    "puppeteer": "^0.10.2",
    "q": "^1.5.0"
  }
}

puppeteer.cljs

;; to avoid "Octal literals are not allowed in strict mode."
;; https://github.com/anmonteiro/lumo/issues/28
(.setFlagsFromString (js/require "v8") "--no-use_strict")

(def puppeteer (js/require "puppeteer"))
(def Q (js/require "q"))

(-> (Q (.launch puppeteer))
    (.then (fn [browser]
             (-> (Q (.newPage browser))
                 (.then (fn [page]
                          (.goto page "https://example.com/")
                          (.screenshot page #js {:path "example.png"})))
                 (.then #(.close browser))))))

yarn.lock

# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
# yarn lockfile v1


agent-base@^4.1.0:
  version "4.1.1"
  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.1.1.tgz#92d8a4fc2524a3b09b3666a33b6c97960f23d6a4"
  dependencies:
    es6-promisify "^5.0.0"

balanced-match@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"

brace-expansion@^1.1.7:
  version "1.1.8"
  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.8.tgz#c07b211c7c952ec1f8efd51a77ef0d1d3990a292"
  dependencies:
    balanced-match "^1.0.0"
    concat-map "0.0.1"

concat-map@0.0.1:
  version "0.0.1"
  resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"

concat-stream@1.6.0:
  version "1.6.0"
  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
  dependencies:
    inherits "^2.0.3"
    readable-stream "^2.2.2"
    typedarray "^0.0.6"

core-util-is@~1.0.0:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"

debug@2.2.0:
  version "2.2.0"
  resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
  dependencies:
    ms "0.7.1"

debug@^2.4.1, debug@^2.6.8:
  version "2.6.8"
  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
  dependencies:
    ms "2.0.0"

es6-promise@^4.0.3:
  version "4.1.1"
  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.1.1.tgz#8811e90915d9a0dba36274f0b242dbda78f9c92a"

es6-promisify@^5.0.0:
  version "5.0.0"
  resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
  dependencies:
    es6-promise "^4.0.3"

extract-zip@^1.6.5:
  version "1.6.5"
  resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.6.5.tgz#99a06735b6ea20ea9b705d779acffcc87cff0440"
  dependencies:
    concat-stream "1.6.0"
    debug "2.2.0"
    mkdirp "0.5.0"
    yauzl "2.4.1"

fd-slicer@~1.0.1:
  version "1.0.1"
  resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.0.1.tgz#8b5bcbd9ec327c5041bf9ab023fd6750f1177e65"
  dependencies:
    pend "~1.2.0"

fs.realpath@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"

glob@^7.0.5:
  version "7.1.2"
  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
  dependencies:
    fs.realpath "^1.0.0"
    inflight "^1.0.4"
    inherits "2"
    minimatch "^3.0.4"
    once "^1.3.0"
    path-is-absolute "^1.0.0"

https-proxy-agent@^2.1.0:
  version "2.1.0"
  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.1.0.tgz#1391bee7fd66aeabc0df2a1fa90f58954f43e443"
  dependencies:
    agent-base "^4.1.0"
    debug "^2.4.1"

inflight@^1.0.4:
  version "1.0.6"
  resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
  dependencies:
    once "^1.3.0"
    wrappy "1"

inherits@2, inherits@^2.0.3, inherits@~2.0.3:
  version "2.0.3"
  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"

isarray@~1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"

mime@^1.3.4:
  version "1.4.0"
  resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.0.tgz#69e9e0db51d44f2a3b56e48b7817d7d137f1a343"

minimatch@^3.0.4:
  version "3.0.4"
  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
  dependencies:
    brace-expansion "^1.1.7"

minimist@0.0.8:
  version "0.0.8"
  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"

mkdirp@0.5.0:
  version "0.5.0"
  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.0.tgz#1d73076a6df986cd9344e15e71fcc05a4c9abf12"
  dependencies:
    minimist "0.0.8"

ms@0.7.1:
  version "0.7.1"
  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"

ms@2.0.0:
  version "2.0.0"
  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"

once@^1.3.0:
  version "1.4.0"
  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
  dependencies:
    wrappy "1"

path-is-absolute@^1.0.0:
  version "1.0.1"
  resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"

pend@~1.2.0:
  version "1.2.0"
  resolved "https://registry.yarnpkg.com/pend/-/pend-1.2.0.tgz#7a57eb550a6783f9115331fcf4663d5c8e007a50"

process-nextick-args@~1.0.6:
  version "1.0.7"
  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"

progress@^2.0.0:
  version "2.0.0"
  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"

proxy-from-env@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.0.0.tgz#33c50398f70ea7eb96d21f7b817630a55791c7ee"

puppeteer@^0.10.2:
  version "0.10.2"
  resolved "https://registry.yarnpkg.com/puppeteer/-/puppeteer-0.10.2.tgz#b4a959a722bf626ca481f2aeba11fdb810f2c98f"
  dependencies:
    debug "^2.6.8"
    extract-zip "^1.6.5"
    https-proxy-agent "^2.1.0"
    mime "^1.3.4"
    progress "^2.0.0"
    proxy-from-env "^1.0.0"
    rimraf "^2.6.1"
    ws "^3.0.0"

q@^1.5.0:
  version "1.5.0"
  resolved "https://registry.yarnpkg.com/q/-/q-1.5.0.tgz#dd01bac9d06d30e6f219aecb8253ee9ebdc308f1"

readable-stream@^2.2.2:
  version "2.3.3"
  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
  dependencies:
    core-util-is "~1.0.0"
    inherits "~2.0.3"
    isarray "~1.0.0"
    process-nextick-args "~1.0.6"
    safe-buffer "~5.1.1"
    string_decoder "~1.0.3"
    util-deprecate "~1.0.1"

rimraf@^2.6.1:
  version "2.6.1"
  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.1.tgz#c2338ec643df7a1b7fe5c54fa86f57428a55f33d"
  dependencies:
    glob "^7.0.5"

safe-buffer@~5.1.0, safe-buffer@~5.1.1:
  version "5.1.1"
  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"

string_decoder@~1.0.3:
  version "1.0.3"
  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.3.tgz#0fc67d7c141825de94282dd536bec6b9bce860ab"
  dependencies:
    safe-buffer "~5.1.0"

typedarray@^0.0.6:
  version "0.0.6"
  resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"

ultron@~1.1.0:
  version "1.1.0"
  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.0.tgz#b07a2e6a541a815fc6a34ccd4533baec307ca864"

util-deprecate@~1.0.1:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"

wrappy@1:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"

ws@^3.0.0:
  version "3.1.0"
  resolved "https://registry.yarnpkg.com/ws/-/ws-3.1.0.tgz#8afafecdeab46d572e5397ee880739367aa2f41c"
  dependencies:
    safe-buffer "~5.1.0"
    ultron "~1.1.0"

yauzl@2.4.1:
  version "2.4.1"
  resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.4.1.tgz#9528f442dab1b2284e58b4379bb194e22e0c4005"
  dependencies:
    fd-slicer "~1.0.1"

hey, thanks for your example !
you should add a #js {:waitUntil "load"} to the goto call in order to make sure page has been loaded