go-gmail-drafts

1. ΦʔϓϯιʔεϥΠϒϥϦݚڀձ #3 Jan / 22 / 2016 Yoshiki Nakagawa eureka, Inc.
2. AboutMe @yyoshiki41 Yoshiki Nakagawa Infrastructure Engineer, pairs Division Tech • Golang • Middleware, RDBMS • AWS
3. Google APIs Client Library for Go GitHub : https://github.com/google/google-api-go-client/ Enable to access google APIs - Gmail API - BigQuery API - Calendar API etc...
4. yyoshiki41/go-gmail-drafts GitHub : https://github.com/yyoshiki41/go-gmail-drafts Create a new draft using the Gmail API.
5. Why not Google Apps Script ? Apps Script is not enough... Can't create drafts. (only get drafts) So use Google APIs Client Library ! Other languages libraries : https://developers.google.com/discovery/libraries All Libraries are open-sourced !
6. Preparation ̍. Google Developer Console ͔Βɺ৽نϓϩδΣΫτΛ࡞੒ ͢Δɻ ̎. ϓϩδΣΫτͷ Gmail API Λ༗ޮʹ͢Δɻ
7. ̏. ೝূ৘ใΛઃఆ͢Δɻ ̐. ඞཁͳೝূ৘ใΛΫϦοΫɻ
8. ̑. OAuth ΫϥΠΞϯτͷઃఆɻ OAuthೝূΛ׬ྃͤ͞ɺJSONϑΝΠϧΛμ΢ϯϩʔυ͠·͢ɻ ޙͰ࢖͍·͢ʂ
9. How to ̍. go get $ go get github.com/yyoshiki41/go-gmail-drafts $ cd $GOPATH/src/github.com/yyoshiki41/go-gmail-drafts ̎. μ΢ϯϩʔυͨ͠jsonϑΝΠϧΛઃஔɻ $ mv ~/Downloads/clientid.json config/clientsecret.json
10. ̏. ॳճ࣮ߦ࣌͸OAuth௨͠ɺΞΫηετʔΫϯΛऔಘ͢Δɻ $ go run savetoken/main.go ϒϥ΢β͕ࣗಈͰ։͖ɺgoogleΞΧ΢ϯτͷೝূΛ͠·͢ɻ ࣍ʹɺGmailͰͷΞΫγϣϯΛڐՄ͠·͢ɻ
11. ̑ɽςΩετϘοΫεʹදࣔ͞ΕͨcodeΛίϐʔ͢Δɻ λʔϛφϧʹ໭ͬͯɺtokenϑΝΠϧΛੜ੒ɻ ίϐʔͨ͠ίʔυΛషΓ෇͚Δɻ
12. ̑. Լॻ͖ςϯϓϨΛ࡞੒ɻ { "to": "xxx@gmail.com", "subject": "Daily Reports", "message": "Hello!\nThis is a draft." }
13. ̒. go runͰ࣮ߦɻ $ go run main.go
14. ऴΘΓʹ go buildͰόΠφϦԽͯ͠ɺ cron౳ʹొ࿥͢Ε͹ຖ೔Լॻ͖࡞੒౳ʹ࢖͑·͢ʂ