Created
October 17, 2021 18:11
-
-
Save ajaxray/a9300fe9e1627b354c333b1cdb2d1b2b to your computer and use it in GitHub Desktop.
Listing Projects and tasks from Google Tasks
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package main | |
import ( | |
"encoding/json" | |
"fmt" | |
"io/ioutil" | |
"log" | |
"net/http" | |
"os" | |
"golang.org/x/net/context" | |
"golang.org/x/oauth2" | |
"golang.org/x/oauth2/google" | |
gTaskAPI "google.golang.org/api/tasks/v1" | |
) | |
// Create credentials from https://console.cloud.google.com/apis/credentials/oauthclient/ | |
// Download as JSON and put as credentials.json in current directory | |
// 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 := "token.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 main() { | |
b, err := ioutil.ReadFile("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, gTaskAPI.TasksScope) | |
if err != nil { | |
log.Fatalf("Unable to parse client secret file to config: %v", err) | |
} | |
client := getClient(config) | |
srv, err := gTaskAPI.New(client) | |
if err != nil { | |
log.Fatalf("Unable to retrieve gTaskAPI Client %v", err) | |
} | |
r, err := srv.Tasklists.List().MaxResults(10).Do() | |
if err != nil { | |
log.Fatalf("Unable to retrieve task lists. %v", err) | |
} | |
fmt.Println("Task Lists:") | |
if len(r.Items) > 0 { | |
for _, list := range r.Items { | |
fmt.Printf("# %s (%s)\n", list.Title, list.Id) | |
tasks, err := srv.Tasks.List(list.Id).Do() | |
if err != nil { | |
log.Fatalf("Unable to retrieve tasks of list. %v", err) | |
} | |
for _, task := range tasks.Items { | |
fmt.Printf("### %s (%s)\n", task.Title, task.Id) | |
} | |
} | |
} else { | |
fmt.Print("No task lists found.") | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment