go web app 19 deploy to heroku

project site: https://chuanshuoge-election.herokuapp.com/

code link: https://github.com/chuanshuoge6/election

.exe: https://github.com/chuanshuoge6/election/blob/master/election.exe

find GOPATH 

>go env GOPATH

C:\Users\bob\go

copy project directory to GOPATH/src

reinstall dependencies - go get ...

create go.mod

>go mod init example.com/election

go: creating new go.mod: module example.com/election

create go.sum

>go test

go: finding module for package github.com/gorilla/mux

go: finding module for package golang.org/x/crypto/bcrypt

...

create vendor folder

>govendor init

populate vendor folder

>go mod vendor

change port on main.go 

port := os.Getenv("PORT")

http.ListenAndServe(":"+port, nil)

create Procfile in project root directory (GOPATH/src)

web: bin/projectName

create new app on heroku

>git init

>heroku git:remote -a chuanshuoge-election

>git add .

>git commit -am "make it better"

>git push heroku master

remote:        https://chuanshuoge-election.herokuapp.com/ deployed to Heroku

free heroku dyno

>heroku ps:scale web=1

open app on heroku

go app is deployed on heroku

reference:

http://chuanshuoge2.blogspot.com/2020/11/go-web-app-19-deploy.html