How to write to a JSON file in the correct format

Question

I am creating a hash in Ruby and want to write it to a JSON file, in the correct format.

Here is my code:

tempHash = {
    \"key_a\" => \"val_a\         


        

Answer 1

Require the JSON library, and use to_json.

require 'json'
tempHash = {
    "key_a" => "val_a",
    "key_b" => "val_b"
}
File.open("public/temp.json","w") do |f|
  f.write(tempHash.to_json)
end

Your temp.json file now looks like:

{"key_a":"val_a","key_b":"val_b"}