making my own api with node.js
functionality for: add, subtract, multiply, divide, square
localhost:4000/math/ (operator type) / (num1) / (num2)/ (num3) etc.
Example: localhost:4000/math/add/23/345/-29847
output: -29847
input an encoded sentence after localhost:4000/sentence/ returns a stringified object with a count of letters, spaces, and words
Example: http://localhost:4000/sentence/this%20is%20a%20sentence
output: { letters: 15, spaces: 3, words: 4 }
input a MD5 hash of someone's email address and receive a link to view her gravatar
Example: http://localhost:4000/gravatar/paigebolduc@gmail.com
output: http://www.gravatar.com/avatar/a282a242ba59cadd187145d54aa2f306