Initial commit

README.md

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+# dayoftheyear
+Super simple app that returns the day number of the year and what percentage of the year has been completed.
+See it at http://dayoftheyear.cfapps.io

main.go

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+package main
+
+import (
+  "fmt"
+  "net/http"
+  "os"
+  "time"
+)
+
+func dayOfTheYear(w http.ResponseWriter, r *http.Request) {
+  pacific, err := time.LoadLocation("America/Los_Angeles")
+  if err != nil {
+    panic(err)
+  }
+
+  now := time.Now().In(pacific)
+  firstDayOfThisYear := time.Date(now.Year(), 1, 1, 0, 0, 0, 0, pacific)
+  firstDayOfNextYear := time.Date(now.Year() + 1, 1, 1, 0, 0, 0, 0, pacific)
+  totalDaysOfThisYear := daysBetween(firstDayOfThisYear, firstDayOfNextYear)
+
+  dayOfThisYear := now.YearDay()
+  percentage := float64(dayOfThisYear) / float64(totalDaysOfThisYear)
+  daysUntilNextYear := totalDaysOfThisYear - dayOfThisYear
+
+  message := fmt.Sprintf("Today is Day: %d.\n", dayOfThisYear)
+  message += fmt.Sprintf("We are %.1f%% through the year.\n", percentage * 100)
+  message += fmt.Sprintf("There are %d days left in the year.", daysUntilNextYear)
+  w.Write([]byte(message))
+}
+
+func daysBetween(earlier, later time.Time) int {
+  return int(later.Sub(earlier).Hours() / 24)
+}
+
+func main() {
+  http.HandleFunc("/", dayOfTheYear)
+  port := os.Getenv("PORT")
+  if err := http.ListenAndServe(fmt.Sprintf(":%s", port), nil); err != nil {
+    panic(err)
+  }
+}

manifest.yml

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+---
+applications:
+- name: dayoftheyear
+  memory: 32M
+  disk_quota: 32M
+  buildpacks:
+  - go_buildpack
+  env:
+    GOVERSION: go1
+    GOPACKAGENAME: github.com/aaronshurley/dayoftheyear