Send a json with a multiline string instead of \n - ruby-on-rails

Question

I have a string with \n as a join result:
my_var = ['name','phone','age'].join("\n")
I will send this string in the body of a post as a Json:
def body
{ "str": my_var }
end
I want to send the var in multiple lines instead of sending the \n like this:
"name\nphone\nage"
EDIT:
I am sending this string joined with \n to another dev team as a json in the body of my post request to their uri. But they don't want to receive a string with \n and replace or translate there. They want to recieve in multiple lines.

Answer 1

You can use different separator and then, on receive, separate lines from whole string based on that delimiter using
my_delimiter = '\n' or my_delimiter = ';'
lines = my_var.split(my_delimiter).
Or you could iterate over ['name','phone','age'] and add them as separate json elements.
If this doesn't help, then please clarify your question.

Answer 2

They are receiving multiple lines, depending on their OS: https://en.wikipedia.org/wiki/Newline
2.1.10 :001 > my_var = ['name','phone','age'].join("\n")
=> "name\nphone\nage"
2.1.10 :002 > puts my_var
name
phone
age
=> nil
2.1.10 :003 > my_var.to_json
=> "\"name\\nphone\\nage\""
2.1.10 :004 > puts my_var.to_json
"name\nphone\nage"
=> nil
2.1.10 :005 >
The text you're sending them contains instructions on where a line break is (i.e. the \n character). The graphical display of it is up to their end.

Answer 3

That's the expected format of the JSON. You should not be including a new line in the values, but using the '\n' character.
json = { text: ['name','phone','age'].join("\n") }.to_json
puts JSON.parse( json )['text']
you can see the parse is parsing it correctly.
pry(main)> puts JSON.parse( json )['text']
name
phone
age
=> nil