class CorrelationId::Middleware::Rack
Public Class Methods
new(app)
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# File lib/correlation_id/middleware/rack.rb, line 4 def initialize(app) @app = app end
Public Instance Methods
call(env)
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# File lib/correlation_id/middleware/rack.rb, line 8 def call(env) CorrelationId.uuid = header_from_env(env) status, headers, body = @app.call(env) headers = headers.merge(HEADER_KEY => CorrelationId.uuid) [status, headers, body] end
Private Instance Methods
header_from_env(env)
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# File lib/correlation_id/middleware/rack.rb, line 19 def header_from_env(env) env["HTTP_#{HEADER_KEY.upcase.tr('-', '_')}"] end