How to Build a Web App with and Without Rails Libraries

Re:How to Build a Web App with and Without Rails Libraries by cdogl on Wednesday March 31, 2021 @05:41AM (#26645230)

The trick that really opened my eyes was this:

  $ telnet google.com 80
  Trying 142.250.70.238...
  Connected to google.com.
  Escape character is '^]'.
  GET / HTTP/1.1

  HTTP/1.1 200 OK

Then adding a couple of headers - and realising that it really was just text. You can really tell the difference with young developers who've made that leap.

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Re:How to Build a Web App with and Without Rails Libraries by chr on Wednesday March 31, 2021 @08:17AM (#26646226)

Ditto for HTTPS:

    % openssl s_client -quiet -connect  google.com:443
    depth=2 OU = GlobalSign Root CA - R2, O = GlobalSign, CN = GlobalSign
    verify return:1
    depth=1 C = US, O = Google Trust Services, CN = GTS CA  1O1
    verify return:1
    depth=0 C = US, ST = California, L = Mountain View, O = Google LLC, CN = *.google.com
    verify return:1
    GET / HTTP/1.1
    Connection: close
    
    
    HTTP/1.1 200 OK

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Re:How to Build a Web App with and Without Rails Libraries by dec0dedab0de on Wednesday March 31, 2021 @01:15PM (#26650019)

I did Tech support at a small ISP a while ago, and this was part of our first day of training. So was sending email via telnet. There was an optional challenge to add an attachment.

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Re:How to Build a Web App with and Without Rails Libraries by c17r on Wednesday March 31, 2021 @05:41PM (#26653500)

I'm old enough to remember the good ole days of "telnet whitehouse.gov 25" and sending email to friends.

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Re:How to Build a Web App with and Without Rails Libraries by mro_name on Wednesday March 31, 2021 @11:03AM (#26648202)

I find CGIs very interesting when scaling towards n=1 – they just do a bit of parsing and add no dependencies to your project. And with very few code (and still no dependencies) you get tiny, useful tools (plug alarm!) like https://demo.mro.name/geohash.cgi

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