Alacrity01/til.txt

## til.txt
Week 2, Day 1.txt

Main subject: APIs and the web

How does the web work?--Starts with a web request (where you type in the URL). Sends message from our computer through a series of tubes to the server.

http = hypertext transfer protocol

Responds primarily with html, css, and javascript (only responses from a web request)

When we type a URL into our browser, that is a GET request (we just don't see it).


  GET        http://   en.wikipedia.org/     wiki/stuff
  verb      protocol       domain               URL


Common verbs:   The browser doesn't understand these verbs, but our server does (where we may use them)
GET     - reading
POST    - changing
PATCH   - for updating
DELETE  - for removing

HTTP Response

status    HTTP/1.1 200 OK

headers   Date:  <--date and time the web response is sent
          Server:  <--Type of server and its Operating System
          Last-Modified:
          Etag:
          Content-Type:  <--type of content and character set used (English/UTF-8(?))
          Content-Length: 131 <-(131 characters)


body      <html>
          <head>
            <title>An Example Page</title>
          <


json is a combination of strings, arrays, and hashes.


Status Codes:  (always 3 digits long, first digit is important for error type)

100 - informational (fairly uncommon)
200 - Success (usually 200 OK)
300 - Redirect (301 - moved permanently; 302 - found)
400 - Client Error (your fault; 404 Page Not Found--going to a URL that doesn't exist; 403 Forbidden--You don't have authorization to do this particular web request; Twitter for a long time had 420 Enhance Your Calm--in response to sending 50,000+ web requests per second--servers can create their own)
500 - Server Error (my fault; 500 Internal Server Errror is most common; 503 Gateway Timeout (?))


bitly (?) takes a longer URL path and exchanges it for a shorter URL (useful for twitter with a 140 character limit)


APIs deliver data back in response to server request (as opposed to user friendly information like css, javascript, and html)

A gem is a library of ruby code.

subl .   <- terminal command to open the current directory in Sublime

In URLs, spaces are encoded to be replaced with %20

URI is almost interchangable with URL. It is a package in Ruby that will encode for URLs. It is included when we use the gem "require 'http'"

wordnik.com is useful for creating URLs to use for API
	Week 2, Day 1.txt

	Main subject: APIs and the web

	How does the web work?--Starts with a web request (where you type in the URL). Sends message from our computer through a series of tubes to the server.

	http = hypertext transfer protocol

	Responds primarily with html, css, and javascript (only responses from a web request)

	When we type a URL into our browser, that is a GET request (we just don't see it).


	GET http:// en.wikipedia.org/ wiki/stuff
	verb protocol domain URL


	Common verbs: The browser doesn't understand these verbs, but our server does (where we may use them)
	GET - reading
	POST - changing
	PATCH - for updating
	DELETE - for removing

	HTTP Response

	status HTTP/1.1 200 OK

	headers Date: <--date and time the web response is sent
	Server: <--Type of server and its Operating System
	Last-Modified:
	Etag:
	Content-Type: <--type of content and character set used (English/UTF-8(?))
	Content-Length: 131 <-(131 characters)


	body <html>
	<head>
	<title>An Example Page</title>
	<


	json is a combination of strings, arrays, and hashes.



	Status Codes: (always 3 digits long, first digit is important for error type)

	100 - informational (fairly uncommon)
	200 - Success (usually 200 OK)
	300 - Redirect (301 - moved permanently; 302 - found)
	400 - Client Error (your fault; 404 Page Not Found--going to a URL that doesn't exist; 403 Forbidden--You don't have authorization to do this particular web request; Twitter for a long time had 420 Enhance Your Calm--in response to sending 50,000+ web requests per second--servers can create their own)
	500 - Server Error (my fault; 500 Internal Server Errror is most common; 503 Gateway Timeout (?))


	bitly (?) takes a longer URL path and exchanges it for a shorter URL (useful for twitter with a 140 character limit)


	APIs deliver data back in response to server request (as opposed to user friendly information like css, javascript, and html)

	A gem is a library of ruby code.

	subl . <- terminal command to open the current directory in Sublime

	In URLs, spaces are encoded to be replaced with %20

	URI is almost interchangable with URL. It is a package in Ruby that will encode for URLs. It is included when we use the gem "require 'http'"

	wordnik.com is useful for creating URLs to use for API