Run Your Web Scraper Automatically Once a DAY
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- čas přidán 17. 11. 2020
- In this video i'll show you one way of running your web scrapers automatically in the cloud, using cronjobs. we utilise a linux vm from Digital Ocean and download and run our code at a set interval. I cover creating a droplet, downloading code from git and isntalling requirements.
Code & Commands: github.com/jhnwr/whiskey-cronjob
Digital Ocean (Affiliate Link) - m.do.co/c/c7c90f161ff6
Crontab Guru - crontab.guru/
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Disclaimer: These are affiliate links and as an Amazon Associate I earn from qualifying purchases
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Oh man, this was a life saver. I really enjoy your series, everytime I need to scrape something I know you must have done something similar!
John you’re great, been watching your content for the past few days, you explain everything so well and show all different scenarios for beginners or more advanced, ive a few years of experience with python and scraping but still learning a lot from you 🙏🏾
Yo man really really really appreciated!💚
U fulfilled my 2nd request also!
Keep posting quality content like this!
Looking forward for Rest APIs! With django and react!
Thanks a lot John to fulfill the request so soon. Really appreciated. Keep growing dear.❤👍
I loved all of this. I even learned a bit about Digital Ocean that was wayyy better than most tutorials out there. Thank you so much
Your welcome I’m glad you liked it
Thank you! Deployment is my biggest obstacle now but videos like this really help. You covered ssh, deployment and cron jobs in less 14 minutes - incredible!
Thanks! Glad you found it helpful!
excellent stuff John . Concise and to the point . Top quality . Thanks alot !
Thank you!
Thanks John. You helped me on this one again for my school thesis work. :)
This content is gold, it puts everything into perspective.
Thanks very kind!
I greatly appreciate you uploading this video. Also thank you for the cool link!
Thanks!
Man! Linus bless you! It was short and very helpful for me, thanks!
DUDE YOU WILL REACH MILLION SUBS VERY FAST FOR SURE!!! IT WILL BE GREAT IF YOU MAKE FULL COURSE ON SCRAPING AND ML!!!
Just what I was hoping for... Thanks very much for this! You're awesome.
You're very welcome!
@@JohnWatsonRooney any chance of you doing a followup on how to run selenium on DigitalOcean?
Thanks for this, answered a question I had.
Great video, very compact! Thank you so much
Thanks for watching!
Perfect video.
What a great video !
Thank you!
THANK YOU!
Nice vid!
I'm a little bit new to Linux commands, but I wasn't getting the cron.log file to show up in my Home directory. I ended up having to change the permissions of my Home directory, and then it worked. I was using an Ubuntu VM instance on GCP, though. Not sure if that makes a difference from Digital Ocean.
Hi sir. I have an app scraper. My app scrapes news site and extract urls, writes to .txt file. I deployed my app to Heroku. But Heroku doesn't have file system and doesn't update .txt file. Can you show methods connect databases and Heroku? For exmple external clouds or Postgres.
my scraper is done with nodejs so not the same process but still very helpful. thanks!
Hey John,
I hope this message finds you well. While I performed the apt upgrade towards the end I received a message reading "Daemons using outdated libraries" I just hit entered and the pink looking screen went away. Is this something you think I should look into?
Awesome video
Thanks!
@@JohnWatsonRooney could you please make a video on python selenium stale exception which occurs after using driver.back()
Does this digital ocean support chrome-webdriver to scrape the website using selinium?
John, it wants me to be in a venv when inputting ur code at 6:18 . This hasn't happen previously, like it is in ur vid, is this new?
Thanks and
Do you have a video where do you use Google big Query?
quick question, i have a web scraper script that works on local computer but not on a rdp/vps, tried different ip etc. but no luck
hard to say without knowing what the error is, when you say different IPs did you mean VPS IPs or proxies? If its not that its usually an environment issue, like different python versions, or env variables
John hi! One question... when I run the script manually it runs ok, but when it is schedulled to run in the crontab it is not running. The paths are complete. What could I be missing?
The path for the creds file inside must also have the path of the linux server too. Solved it!😊
Hi John, why do you prefer the cloud over a local solution using a raspberry pi for example? Thanks
Generally yes, as I don’t have to worry about it as it’s all managed. I do have a Pi video coming though!
@@JohnWatsonRooney is there any particular technical reason why you used digitalocean over a dedicated scraping host? I am asking this to understand which option will be more suitable for my use/approach
hi John ! Thanks for video ! I have a question about mail, its havto 'gmail' or another type of email ?
You can use any email, I just find it easiest to use a new gmail account for setting up
Hi John great video as usual but I'm having problems scrapping a table of a sport site. I have tried selenium i have managed to get the first table....
There are two table with identical class name...
I have tried indexing but it's seems not to be working
Have you tried opening with selenium then saving the html by page_source? This will give you the html which would be easier to get the data from with bs4 - I did a video on it not long ago. Thanks!
@@JohnWatsonRooney Please post the link to that exact video..
Thank you
Anyway of doing this with Heroku?
I don’t think heroku allows cron on its free tier so you may need to upgrade
This is great and valuable lesson.
However, what if I would like to run my scraper code without turning on my machine / laptop
Is it possible to integrate my code some how into my Wordpress site for example? Or get it to run in the cloud? If yes, can you kindly elaborate and or share the link of your relevant tutorial.
Looking forward to hearing back from you.
Hey, yes you can absolutely run in the cloud. I use digital ocean to run a Linux machine in the cloud that I run scripts on a cron job
@@JohnWatsonRooney Thank you for getting back to me.
Is there a way to integrate or house the code in a WordPress website?
@@emadkamel1961 Not that I know of no - if you had access to the server wordpress was running on you could run the code but it wouldn't be related to the wordpress site itself
@@JohnWatsonRooney Thanks again.
Hey man can please make a video on how to make a csv file of scraped data with name as current date or time?
Sure I’ll look into it
@@JohnWatsonRooney thanks🥳
Bro is it possible to use this method in windows?
Yes, it’s called scheduled tasks in windows - but I’ve never used it so I’m afraid I don’t know how it compares or how to use it
@@JohnWatsonRooney oh I would check that😃😃
Interesting Video
For some reason I can't get my cronjobs to work or test correctly on my AWS EC2 instance. I have this setup and the test file isn't updating.
From the top directory on EC2, I have to navigate to a home folder, then an ubuntu folder, then in ubuntu folder is my working directory where I have a test.py script and a test cronlog file. I also have a main folder for the actual project I have trying to schedu.e
Any tips? Below is my test setup
* * * * * usr/bin/python3 /home/ubuntu/test.py >> /home/ubuntu/testcron123.log
Not sure specifically but I would check user permissions on the folder and check which users crontab you are using, I know users and permissions tripped me up before
@@JohnWatsonRooney turns out i didnt have a forward slash in front of the usr in the path to the python interpreter... 5 hours of looking into this, haha.