golang.org/x/oauth2@v0.18.0/example_test.go (about)

     1  // Copyright 2014 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package oauth2_test
     6  
     7  import (
     8  	"context"
     9  	"fmt"
    10  	"log"
    11  	"net/http"
    12  	"time"
    13  
    14  	"golang.org/x/oauth2"
    15  )
    16  
    17  func ExampleConfig() {
    18  	ctx := context.Background()
    19  	conf := &oauth2.Config{
    20  		ClientID:     "YOUR_CLIENT_ID",
    21  		ClientSecret: "YOUR_CLIENT_SECRET",
    22  		Scopes:       []string{"SCOPE1", "SCOPE2"},
    23  		Endpoint: oauth2.Endpoint{
    24  			AuthURL:  "https://provider.com/o/oauth2/auth",
    25  			TokenURL: "https://provider.com/o/oauth2/token",
    26  		},
    27  	}
    28  
    29  	// use PKCE to protect against CSRF attacks
    30  	// https://www.ietf.org/archive/id/draft-ietf-oauth-security-topics-22.html#name-countermeasures-6
    31  	verifier := oauth2.GenerateVerifier()
    32  
    33  	// Redirect user to consent page to ask for permission
    34  	// for the scopes specified above.
    35  	url := conf.AuthCodeURL("state", oauth2.AccessTypeOffline, oauth2.S256ChallengeOption(verifier))
    36  	fmt.Printf("Visit the URL for the auth dialog: %v", url)
    37  
    38  	// Use the authorization code that is pushed to the redirect
    39  	// URL. Exchange will do the handshake to retrieve the
    40  	// initial access token. The HTTP Client returned by
    41  	// conf.Client will refresh the token as necessary.
    42  	var code string
    43  	if _, err := fmt.Scan(&code); err != nil {
    44  		log.Fatal(err)
    45  	}
    46  	tok, err := conf.Exchange(ctx, code, oauth2.VerifierOption(verifier))
    47  	if err != nil {
    48  		log.Fatal(err)
    49  	}
    50  
    51  	client := conf.Client(ctx, tok)
    52  	client.Get("...")
    53  }
    54  
    55  func ExampleConfig_customHTTP() {
    56  	ctx := context.Background()
    57  
    58  	conf := &oauth2.Config{
    59  		ClientID:     "YOUR_CLIENT_ID",
    60  		ClientSecret: "YOUR_CLIENT_SECRET",
    61  		Scopes:       []string{"SCOPE1", "SCOPE2"},
    62  		Endpoint: oauth2.Endpoint{
    63  			TokenURL: "https://provider.com/o/oauth2/token",
    64  			AuthURL:  "https://provider.com/o/oauth2/auth",
    65  		},
    66  	}
    67  
    68  	// Redirect user to consent page to ask for permission
    69  	// for the scopes specified above.
    70  	url := conf.AuthCodeURL("state", oauth2.AccessTypeOffline)
    71  	fmt.Printf("Visit the URL for the auth dialog: %v", url)
    72  
    73  	// Use the authorization code that is pushed to the redirect
    74  	// URL. Exchange will do the handshake to retrieve the
    75  	// initial access token. The HTTP Client returned by
    76  	// conf.Client will refresh the token as necessary.
    77  	var code string
    78  	if _, err := fmt.Scan(&code); err != nil {
    79  		log.Fatal(err)
    80  	}
    81  
    82  	// Use the custom HTTP client when requesting a token.
    83  	httpClient := &http.Client{Timeout: 2 * time.Second}
    84  	ctx = context.WithValue(ctx, oauth2.HTTPClient, httpClient)
    85  
    86  	tok, err := conf.Exchange(ctx, code)
    87  	if err != nil {
    88  		log.Fatal(err)
    89  	}
    90  
    91  	client := conf.Client(ctx, tok)
    92  	_ = client
    93  }