Ruby Sinatra - How to capture post json data and save to file

Question

How do I capture a Json data from POST route and save it to file? I have simple ruby sinatra code as below.

#!/usr/bin/env ruby
require 'rubygems'
require 'sinatra'
require 'json'

post '/' do
  values = JSON.parse(request.env["rack.input"].read)
# How do I save "values" of JSON to file..
end

try [this](http://stackoverflow.com/a/2777863/390819) for example. — Cristian Lupascu, May 06 '15 at 07:52

score 2 · Accepted Answer · answered May 06 '15 at 10:28

2

Try this

#!/usr/bin/env ruby
require 'rubygems'
require 'sinatra'
require 'json'

post '/' do
  values = JSON.parse(request.env["rack.input"].read)
  File.open('file.txt', 'w') { |file| file.write(values) }
end

answered May 06 '15 at 10:28

Shahzad Tariq

2,767
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Thanks for posting.. but somehow it is not working for me. I don't even see the file "file.txt" in the current directory, and even if I create a file.txt, after posting, the file.txt is empty. I wonder if there something I missed. – Tedha May 06 '15 at 11:56

score 1 · Answer 2 · edited May 24 '19 at 09:57

1

To write file in ruby you can use:

File.open('/your/path/file', 'w') { |file| file.write(values) }

edited May 24 '19 at 09:57

Zoe

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answered May 06 '15 at 09:02

davidesantangelo

59
4

Ruby Sinatra - How to capture post json data and save to file

2 Answers2