ruby - How to write to a JSON file in the correct format -

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i creating hash in ruby , want write json file, in correct format.

here code:

temphash = {     "key_a" => "val_a",     "key_b" => "val_b" } fjson = file.open("public/temp.json","w") fjson.write(temphash) fjson.close

and here contents of resulting file: 

key_aval_akey_bval_b

i'm using sinatra (don't know version) , ruby v 1.8.7.

how can write file in correct json format?

require json library, , use to_json.

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

your temp.json file looks like:

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

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