add rake task

lib/tasks/slack.rake

@@ -0,0 +1,25 @@
+require "uri"
+require "net/http"
+
+namespace :slack do
+  desc "TODO"
+  task webhook: :environment do
+    out = {}
+    out[:text] = "Hello World"
+    out[:color] = "good"
+    out[:pretext] = "pretext!"
+
+
+
+    uri = URI.parse('https://hooks.slack.com/services/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')
+    http = Net::HTTP.new(uri.host, uri.port)
+    http.use_ssl = true
+
+
+    request = Net::HTTP::Post.new(uri.path, {'Content-Type' =>'application/json'})
+    request.body = out.to_json
+
+    response = http.request(request)
+    puts response.body
+  end
+end