r - How to scrape data from this website? -


i need login site http://bit.do scraping purpose. data protected password can't figure out how log in access them in r.

i tried 

 library (rvest)   url       <-"http://bit.d o/#login/admin"     pgsession <-html_session(url)                 pgform    <-html_form(pgsession)[[1]]           filled_form <- set_values(pgform,  'username' = "test0001",   'password' = "qwerty1234")   submit_form(pgsession,filled_form)   url <- 'http://bit.d o/admin/url/http%3a||2f||2fedition.cnn.com||2f2017||2f07||2f21||2fopinions||2ftrump-russia-putin-lain-opinion||2findex.html'  data_page <- read_html(url)  data_link<- html_nodes(data_page,'td > a')  data_click<- html_nodes(data_page,'td span:nth-child(1)')

but kind of error

 submitting 'null'  error in xml2::url_absolute(form$url, session$url) :   not compatible strsxp: [type=null].

how do? these testing credential username: test0001, password: qwerty1234. here's example of protected data want scrape http://bit.d o/admin/url/http%3a||2f||2fedition.cnn.com||2f2017||2f07||2f21||2fopinions||2ftrump-russia-putin-lain-opinion||2findex.html

important: note due stackoverflow restriction put space between d , o in domain name

since form has no url field, when call submit_form(pgsession, filled_form) call xml2::url_absolute(form$url, session$url) takes place doesn't work because form$url null. in order past this, need give value – if empty – form$url called url_absolute. try adding following line after populate filled_form set_values:

filled_form$url <- ''

Comments

Post a Comment

Popular posts from this blog

php - Vagrant up error - Uncaught Reflection Exception: Class DOMDocument does not exist -

i've set bento/ubuntu-16.04 vagrant box using php 5.6, , getting following error quite few times when try , run shell script: "uncaught reflection exception: class domdocument not exist". i've tried adding following top of script (not together), each no success: "sudo apt-get install php5.6-xml", "sudo apt-get install php5-xml", "sudo apt-get install php-dom" i've tried resetting server "sudo service apache2 restart". does have suggestions?
Read more

vue.js - Create hooks for automated testing -

Image
qa guys complained can't automate frontend testing. because our html looks same outside. lazy hack did this <template> <div :role="$options.name"> ... </div> </template> <script> export default { name: 'vmcomponentname' } </script> which takes name script , applies html. in browser get: <div role="vmcomponentname"> ... </div> line :role="$options.name" goes in every component. is there dry er solutions? please share. additional details i'll explain in details looking for. imagine have vmusercreate form creates user. test case can create user . to automatically test without role, have use following selector: .wrapper > .wrapper > .wrapper > .submit-button the test extremely brittle (will break lot). if use roles can use [role="vmusercreateform"] .submit-button selector. many folds less brittle. so basically, i'm
Read more

.htaccess - ERR_TOO_MANY_REDIRECTS htaccess -

could can explain me .htaccess code doing? rewriterule ([0-9]+)/([^t]{1}[a-za-z0-9_-]{0,})\.([^s]{1}[a-za-z0-9]+)$ ../items/go.php?u=$1/$2.$3 i have folder : mywebsite.com/download/folder1/ .htaccess file in uplevel mywebsite.com/download/ folder contains code above. when access file directly path mywebsite.com/download/folder1/file.mp4 returns error : mywebsite.com redirected many times. try clearing cookies. err_too_many_redirects i tried clear browser cookies issue persist. issue solved when commented out htaccess line above. this rule appears looking specific pattern consisting of: <numbers>/<alphanumeric string not starting t , other conditions applied>.<alphanumeric string not starting s> then redirecting user's browser go.php parsed filename passed file arguments. err_too_many_redirects due infinite redirect loop. without knowing other rewriterule statements present difficult narrow down exact cause. can narrow down
Read more