Installing the json gem.
Require json ruby.
We ll use the spotify api because it allows requests without authentication.
Let s look at how to retrieve and parse json results from a restful api using the four most popular ruby http libraries.
Ruby has a built in module that contains methods to generate and parse json.
You can choose to load a set of common additions to ruby core s objects if you require json add core to get the best compatibility to rails json implementation you can require json add rails both of the additions attempt to require json like above first if it has not been required yet.
The ruby toolbox lists no less than 25 http clients.
It is easy for machines to parse and generate.
It s easy to read and understand both by humans and machines.
On ruby 1 8 7 you ll need to install a gem.
Json is a language agnostic lightweight data interchange format.
Generate a json document from the ruby data structure obj and return it.
Define a url to be parsed.
So if you re using 1 9 2 you re probably all set.
An object convertible into a hash by a to h method that is used as or to configure a state object.
Load a ruby data structure from a json source and return it.
It is easy for humans to read and write.
If proc was given it will be called with any nested ruby object as an argument recursively in depth first order.
It is based on a subset of the javascript programming language standard ecma 262 3rd edition december 1999.
In an overview json javascript object notation is a lightweight data interchange format.
It defaults to a state object that creates the shortest possible json text in one line checks for circular data structures and doesn t.
Generating or serializing json in ruby.
To modify the default options pass in the optional options argument as well.
A source can either be a string like object an io like object or an object responding to the read method.
Make an http get request to that url.
The four code snippets below will.
State is a json state object.
Json is a text format that is completely language.
Or a hash like object responding to to hash.
In this article you ll learn how to generate and parse json data in ruby.
However in ruby 1 9 2 the json gem is bundled with the core ruby distribution.
