A community learning initiative by SaiConsultants

1. HTTP: BASICS AND
MOREA community learning initiative
by
SaiConsultants

2. Hi! I’m Paddington, too lazy to wave
my arm, I’m not a techie! My friend
Scyhler is the nerd who will speak
about HTTP today. I really don’t know
what it is !!

3. HTTP – Hyper text
transfer protocol.
Hyper text means
document can have
references to another
document. It could have
files, images or more links
as reference

4. HTTP initially was limited. Request goes to server.
Server reads HTTP and hence understands the request.
Protocol has template for response. Just knows what to
send back and responds.
GET here means send us the data. It can update,
delete and add.
Name of file – Sychler .jpg last thing is version of
HTTP using 1.1 very common

5. We are the Headers!
Headers – Additional data about request: Kind of
browser, what format it supports,
What version of data present in the cache, etc.
Smallest Request: Host & User-Agent
RESPONSE similar to REQUEST

6. HTTP RESPONSE:
Status Code is biggest
difference is response code.
Request was fulfilled, redirected
or not fulfilled – Each
represented by different status
code.
We are the header section!
We all are just Options
except Content-length! Huh
!!
The Actual Data – Sychler.jpg

7. HTTP MULTIPLE
REQUESTS:
SaiConsultants.org
http://www.saiconsultants.org
Index document returned when no explicit document specified. Servers
responds with index.html & browser parses it and does a lot of things to
parse response.
Index.html has references to documents to display website. Like
images, videos, style sheet, JS files, etc.

8. Single URL has many more requests than you
can imagine!

9. POST REQUEST:
Request itself has body or payload. Data is sent in POST.
What happens with the data is upto how server side is coded. One such
example below:
POST request has to be responded by a re-direct and not a
RESPOND with website or RESPONSE.

10. HTTP Stateless!!
An HTTP cookie is a small piece
of data sent from a website and
stored in the user's web browser
while the user is browsing.
- Logging into website
- Session Management
- Authentication
HTTP Cookie

11. The slides will be available on
http://www.slideshare.net/_SaiConsultants
THANK YOU FOR ATTENDING!
Send us an email at
contactus@saiconsultants.org or find us on
Facebook by SaiConsultants
HTTP Session 2 will be live on