JSON from Javascript Object to Ruby

Question

I'm sending an object from Javascript to a Sinatra POST route. I'm using the 'stringify' method to convert my js object to JSON. The JSON being sent is like so (according to the dev tools in chrome):

{"a":1,"b":2,"c":"3"}:

I have my route in Sinatra setup like so:

post '/results' do
    results = JSON.parse(params.to_json, symbolize_names: true)
end

I can't figure how to access the keys in Ruby once I parse the JSON. Is there a better way to do so, am I missing something?

Community · Accepted Answer · 2017-05-23 10:25:24Z

2

I believe that if you are sending the JSON in the POST body - you should access it from request.body, and not from params (see this question: How to parse JSON request body in Sinatra just once and expose it to all routes?):

post '/results' do
  request.body.rewind
  results = JSON.parse(request.body.read, symbolize_names: true)
end

edited May 23, 2017 at 10:25

CommunityBot

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answered Mar 18, 2014 at 20:29

Uri Agassi

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Comments

TheAJ · Accepted Answer · 2014-03-18 20:26:34Z

0

You should be able to access it like an associative array:

results["a"]
results["b"]
...

answered Mar 18, 2014 at 20:26

TheAJ

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2 Comments

jmcharnes Over a year ago

I get nil when I try and access it like that.

TheAJ Over a year ago

@jmcharnes try removing the symbolize_names parameter.

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