json_parse_basics

🛠️ Parse JSON Strings into Ruby Objects

Parsing JSON data is straightforward with Ruby’s built-in json library. First, require the library and then call JSON.parse on a JSON-formatted string to convert it into native Ruby types (hashes, arrays, strings, etc.).

require 'json'

json_str = '{"name":"Alice","age":30,"skills":["Ruby","JSON"]}'
parsed = JSON.parse(json_str)
puts parsed.class            # => Hash
puts parsed["name"]         # => "Alice"
puts parsed["skills"][1]    # => "JSON"

You can pass the symbolize_names: true option to JSON.parse to convert keys to symbols for more idiomatic Ruby usage:

parsed_sym = JSON.parse(json_str, symbolize_names: true)
puts parsed_sym[:age]         # => 30