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module Middleware
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class CatchJsonParseErrors
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def initialize(app)
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@app = app
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end
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def call(env)
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begin
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@app.call(env)
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rescue ActionDispatch::ParamsParser::ParseError => error
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if env['HTTP_ACCEPT'] =~ /application\/json/ || env['CONTENT_TYPE'] =~ /application\/json/
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error_output = "There was a problem in the JSON you submitted: #{error}"
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Rails.logger.debug(error_output)
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return [
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400, { "Content-Type" => "application/json" },
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[{ :status => 400, :error => error_output }.to_json]
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]
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else
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raise error
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end
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end
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end
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end
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end
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