diff --git a/lib/treblle.rb b/lib/treblle.rb
index b36394e..0f69480 100644
--- a/lib/treblle.rb
+++ b/lib/treblle.rb
@@ -2,6 +2,7 @@
 
 require 'treblle/middleware'
 require 'treblle/configuration'
+require 'treblle/rails/railtie'
 
 # Treblle middleware for request interception and gathering.
 module Treblle
diff --git a/lib/treblle/generate_payload.rb b/lib/treblle/generate_payload.rb
index 43c34d7..d71d22b 100644
--- a/lib/treblle/generate_payload.rb
+++ b/lib/treblle/generate_payload.rb
@@ -8,7 +8,7 @@ class GeneratePayload
     SDK_LANG = 'ruby'
     TIME_FORMAT = '%Y-%m-%d %H:%M:%S'
 
-    def initialize(request:, response:, started_at:, exception: nil, configuration: Treblle.configuration)
+    def initialize(request:, response:, started_at:, exception: false, configuration: Treblle.configuration)
       @request = request
       @response = response
       @started_at = started_at
@@ -73,7 +73,7 @@ def payload
             code: response.status,
             size: response.size,
             load_time: load_time,
-            body: sanitize(response.body),
+            body: response.body,
             errors: build_error_object
           }
         }
@@ -81,16 +81,30 @@ def payload
     end
 
     def build_error_object
-      return [] if exception.blank?
+      return [] if exception == false
+
+      trace = response.body.dig("traces", "Application Trace")&.first&.[]("trace")
+      file_path, line_number = get_exception_path_and_line(trace)
 
       [
         {
           source: 'onError',
-          type: exception.class.to_s || 'Unhandled error',
-          message: exception.message,
-          file: exception.backtrace
+          type: response.body["error"] || response.body["errors"] || 'Unhandled error',
+          message: response.body["exception"] || response.body["error"] || response.body["errors"],
+          file: file_path,
+          line: line_number
         }
       ]
     end
+
+    def get_exception_path_and_line(trace)
+      return [nil, nil] if trace.nil?
+
+      match_data = trace.match(/^(.*):(\d+):in `.*'$/)
+      file_path = match_data[1]
+      line_number = match_data[2]
+
+      [file_path, line_number]
+    end
   end
 end
diff --git a/lib/treblle/middleware.rb b/lib/treblle/middleware.rb
index 6ff8784..76b9230 100644
--- a/lib/treblle/middleware.rb
+++ b/lib/treblle/middleware.rb
@@ -31,25 +31,20 @@ def call(env)
     def call_with_treblle_monitoring(env)
       started_at = Time.now
 
-      begin
-        response = @app.call(env)
-      rescue Exception => e
-        handle_monitoring(env, response, started_at, e)
-        raise e
-      end
+      response = @app.call(env)
+      status, _headers, _rack_response = response
 
-      handle_monitoring(env, response, started_at)
+      handle_monitoring(env, response, started_at) if status < 400
 
       response
     end
 
-    def handle_monitoring(env, rack_response, started_at, exception: nil)
+    def handle_monitoring(env, rack_response, started_at)
       configuration.validate_credentials!
 
       request = RequestBuilder.new(env).build
       response = ResponseBuilder.new(rack_response).build
-      payload = GeneratePayload.new(request: request, response: response, started_at: started_at,
-        exception: exception).call
+      payload = GeneratePayload.new(request: request, response: response, started_at: started_at).call
 
       Dispatcher.new(payload: payload).call
     rescue StandardError => e
diff --git a/lib/treblle/rails/capture_exceptions.rb b/lib/treblle/rails/capture_exceptions.rb
new file mode 100644
index 0000000..d9eb50f
--- /dev/null
+++ b/lib/treblle/rails/capture_exceptions.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require 'treblle/dispatcher'
+require 'treblle/request_builder'
+require 'treblle/response_builder'
+require 'treblle/generate_payload'
+require 'treblle/logging'
+require 'treblle'
+
+module Treblle
+  module Rails
+    class CaptureExceptions
+      include Logging
+
+      def initialize(app, configuration: Treblle.configuration)
+        @app = app
+        @configuration = configuration
+      end
+
+      def call(env)
+        started_at = Time.now
+        response = @app.call(env)
+        status, _headers, _rack_response = response
+
+        handle_monitoring(env, response, started_at) if status >= 400
+
+        response
+      end
+
+      private
+
+      attr_reader :configuration
+
+      def handle_monitoring(env, rack_response, started_at)
+        configuration.validate_credentials!
+
+        request = RequestBuilder.new(env).build
+        response = ResponseBuilder.new(rack_response).build
+        payload = GeneratePayload.new(request: request, response: response, started_at: started_at,
+          exception: true).call
+
+        Dispatcher.new(payload: payload).call
+      rescue StandardError => e
+        log_error(e.message)
+      end
+    end
+  end
+end
diff --git a/lib/treblle/rails/railtie.rb b/lib/treblle/rails/railtie.rb
new file mode 100644
index 0000000..6f12c9a
--- /dev/null
+++ b/lib/treblle/rails/railtie.rb
@@ -0,0 +1,14 @@
+require 'rails'
+require 'treblle/rails/capture_exceptions'
+
+module Treblle
+  module Init
+    module Rails
+      class Railtie < ::Rails::Railtie
+        initializer 'treblle.install_middleware' do |app|
+          app.config.middleware.insert_after ActionDispatch::ShowExceptions, Treblle::Rails::CaptureExceptions
+        end
+      end
+    end
+  end
+end
diff --git a/lib/treblle/response_builder.rb b/lib/treblle/response_builder.rb
index 2f087c6..1c75e0e 100644
--- a/lib/treblle/response_builder.rb
+++ b/lib/treblle/response_builder.rb
@@ -18,14 +18,14 @@ def build
 
     private
 
-    attr_reader :rack_response
+    attr_reader :rack_response, :handle_errors
 
     def apply_to_response(response)
       status, headers, response_data = rack_response || [500, [], nil]
 
       response.status = status
       response.headers = headers
-      response.body = parse_body(response_data)
+      response.body = parse_body(response_data) || parse_error_body(response_data)
       response.size = calculate_size(response.body, response.headers)
       response
     end
@@ -40,6 +40,16 @@ def parse_body(response_data)
       return nil unless response_data.respond_to?(:body)
 
       JSON.parse(response_data.body)
+    rescue JSON::ParserError
+      response_data.body
+    end
+
+    def parse_error_body(response_data)
+      return nil unless response_data.is_a?(Array) && !response_data.empty?
+
+      JSON.parse(response_data.first)
+    rescue JSON::ParserError
+      response_data.body
     end
   end
 end
diff --git a/lib/treblle/utils/hash_sanitizer.rb b/lib/treblle/utils/hash_sanitizer.rb
index e19d1f7..93c5f35 100644
--- a/lib/treblle/utils/hash_sanitizer.rb
+++ b/lib/treblle/utils/hash_sanitizer.rb
@@ -4,18 +4,36 @@ module Treblle
   module Utils
     class HashSanitizer
       class << self
-        def sanitize(hash, sensitive_attrs)
-          return {} if hash.nil? || hash.empty?
-          return hash unless hash.is_a?(Hash) || hash.is_a?(Array)
+        def sanitize(body, sensitive_attrs)
+          return {} if body.nil? || body.empty?
+          return hash unless body.is_a?(Hash) || body.is_a?(Array)
 
+          if body.is_a?(Hash)
+            sanitize_hash(body, sensitive_attrs)
+          elsif body.is_a?(Array)
+            sanitize_array(body, sensitive_attrs)
+          end
+        end
+
+        private
+
+        def sanitize_hash(hash, sensitive_attrs)
           hash.each_with_object({}) do |(key, value), result|
             result[key] = if value.is_a?(Hash) || value.is_a?(Array)
-                            sanitize_hash(value, sensitive_attrs)
+                            sanitize(value, sensitive_attrs)
                           else
-                            sensitive_attrs.include?(key.to_s) ? '*' * value.to_s.length : value
+                            sanitize_value(key, value, sensitive_attrs)
                           end
           end
         end
+
+        def sanitize_array(array, sensitive_attrs)
+          array.map { |item| sanitize(item, sensitive_attrs) }
+        end
+
+        def sanitize_value(key, value, sensitive_attrs)
+          sensitive_attrs.include?(key.to_s) ? '*' * value.to_s.length : value
+        end
       end
     end
   end
diff --git a/spec/lib/request_builder_spec.rb b/spec/lib/request_builder_spec.rb
index 1342b8a..acd3ec9 100644
--- a/spec/lib/request_builder_spec.rb
+++ b/spec/lib/request_builder_spec.rb
@@ -72,9 +72,9 @@
 
           result = subject.new(env).build
 
-          expect(result.body).to eq '{"something":"everything"}'
-          expect(result.body.encoding).to eq Encoding::UTF_8
-          expect(result.body.valid_encoding?).to be true
+          expect(result.body).to eq({ "something" => "everything" })
+          expect(result.body.to_json.encoding).to eq Encoding::UTF_8
+          expect(result.body.to_json.valid_encoding?).to be true
         end
       end
     end