Create google meet links directly from terminal, for personal and work usage

google-meet-cli.md

Meet

Create google meet links directly from terminal, for personal and work usage

meet
meet -w       # -w work email

Installation

go mod init meet
go run .
go install

Code

// meet.go
package main

import (
	"log"
	"os"

	"github.com/urfave/cli/v2"
)

func main() {
	var isWorkMeet int = 0

	app := &cli.App{
		Name:  "meet",
		Usage: "Generate a meet link",
		Action: func(*cli.Context) error {
			GenerateMeetBasedOnType(isWorkMeet)
			return nil
		},
		Flags: []cli.Flag{
			&cli.BoolFlag{
				Name:    "isWorkMeet",
				Aliases: []string{"w"},
				Usage:   "Create a work meet link",
				Count:   &isWorkMeet,
			},
		},
	}

	if err := app.Run(os.Args); err != nil {
		log.Fatal(err)
	}
}

generate-meet.go

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"os"
	"time"

	"golang.design/x/clipboard"
	"golang.org/x/oauth2"
	"golang.org/x/oauth2/google"
	"google.golang.org/api/calendar/v3"
	"google.golang.org/api/option"
)

var isWorkMeetFlag = false
var path = "" // TODO: Update it if you want to use this code as a package

// Retrieve a token, saves the token, then returns the generated client.
func getClient(config *oauth2.Config) *http.Client {
	// The file token.json stores the user's access and refresh tokens, and is
	// created automatically when the authorization flow completes for the first
	// time.

	tokFile := ""

	if isWorkMeetFlag == true {
		tokFile = path + "token_work.json"
	} else {
		tokFile = path + "token_personal.json"
	}

	tok, err := tokenFromFile(tokFile)
	if err != nil {
		tok = getTokenFromWeb(config)
		saveToken(tokFile, tok)
	}
	return config.Client(context.Background(), tok)
}

// Request a token from the web, then returns the retrieved token.
func getTokenFromWeb(config *oauth2.Config) *oauth2.Token {
	authURL := config.AuthCodeURL("state-token", oauth2.AccessTypeOffline)
	fmt.Printf("Go to the following link in your browser then type the "+
		"authorization code: \n%v\n", authURL)

	var authCode string
	if _, err := fmt.Scan(&authCode); err != nil {
		log.Fatalf("Unable to read authorization code: %v", err)
	}

	tok, err := config.Exchange(context.TODO(), authCode)
	if err != nil {
		log.Fatalf("Unable to retrieve token from web: %v", err)
	}
	return tok
}

// Retrieves a token from a local file.
func tokenFromFile(file string) (*oauth2.Token, error) {
	f, err := os.Open(file)
	if err != nil {
		return nil, err
	}
	defer f.Close()
	tok := &oauth2.Token{}
	err = json.NewDecoder(f).Decode(tok)
	return tok, err
}

// Saves a token to a file path.
func saveToken(path string, token *oauth2.Token) {
	fmt.Printf("Saving credential file to: %s\n", path)
	f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
	if err != nil {
		log.Fatalf("Unable to cache oauth token: %v", err)
	}
	defer f.Close()
	json.NewEncoder(f).Encode(token)
}

func GenerateMeetBasedOnType(isWorkMeet int) {
	if isWorkMeet == 0 {
		fmt.Println("Creating a personal meet link...")
		isWorkMeetFlag = false
	} else {
		fmt.Println("Creating a work meet link...")
		isWorkMeetFlag = true
	}

	generateMeetLink()
}

func generateMeetLink() {
	ctx := context.Background()
	b, err := os.ReadFile(path + "credentials.json")

	if err != nil {
		log.Fatalf("Unable to read client secret file: %v", err)
	}

	// If modifying these scopes, delete your previously saved token.json.
	config, err := google.ConfigFromJSON(b, calendar.CalendarScope)
	if err != nil {
		log.Fatalf("Unable to parse client secret file to config: %v", err)
	}
	client := getClient(config)

	srv, err := calendar.NewService(ctx, option.WithHTTPClient(client))
	if err != nil {
		log.Fatalf("Unable to retrieve Calendar client: %v", err)
	}

	t := time.Now().Format(time.RFC3339)
	fmt.Println(t)
	event := &calendar.Event{
		Summary: "Meet",
		Start: &calendar.EventDateTime{
			DateTime: t,
		},
		End: &calendar.EventDateTime{
			DateTime: t,
		},
		ConferenceData: &calendar.ConferenceData{
			CreateRequest: &calendar.CreateConferenceRequest{
				ConferenceSolutionKey: &calendar.ConferenceSolutionKey{
					Type: "hangoutsMeet",
				},
				RequestId: time.Now().String(),
				Status: &calendar.ConferenceRequestStatus{
					StatusCode: "success",
				},
			},
		},
	}

	calendarId := "primary"
	event, err = srv.Events.Insert(calendarId, event).ConferenceDataVersion(1).Do()
	if err != nil {
		log.Fatalf("Unable to create event. %v\n", err)
	}

	errClip := clipboard.Init()
	if errClip != nil {
		panic(errClip)
	}

	fmt.Println("Event Link Copied: \n", event.HangoutLink)
	clipboard.Write(clipboard.FmtText, []byte(event.HangoutLink))
}