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json_generate_basics

✍️ Generate JSON from Ruby Objects​

Ruby objects like Hashes and Arrays provide a to_json method (after requiring json) to serialize them into JSON strings. This is useful when you need to send data over HTTP or store it in a JSON file.

require 'json'

user = { name: "Bob", active: true, roles: ["admin", "editor"] }
json_output = user.to_json
puts json_output  # => "{\"name\":\"Bob\",\"active\":true,\"roles\":[\"admin\",\"editor\"]}"

Alternatively, use JSON.generate for the same result:

json_output2 = JSON.generate(user)
puts json_output2 == json_output  # => true