Some cleanup, adding Google web flow example.

google/example_test.go

@@ -0,0 +1,69 @@
+package google
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/golang/oauth2"
+)
+
+func Example_webServer() {
+	// Your credentials should be obtained from the Google
+	// Developer Console (https://console.developers.google.com).
+	config, err := NewConfig(&oauth2.Opts{
+		ClientID:     "YOUR_CLIENT_ID",
+		ClientSecret: "YOUR_CLIENT_SECRET",
+		RedirectURL:  "YOUR_REDIRECT_URL",
+		Scopes: []string{
+			"https://www.googleapis.com/auth/bigquery",
+			"https://www.googleapis.com/auth/blogger"},
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// Redirect user to Google's consent page to ask for permission
+	// for the scopes specified above.
+	url, err := config.AuthCodeURL("")
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("Visit the URL for the auth dialog: %v", url)
+
+	// Handle the exchange code to initiate a transport
+	t, err := config.NewTransportWithCode("exchange-code")
+	if err != nil {
+		log.Fatal(err)
+	}
+	client := http.Client{Transport: t}
+	client.Get("...")
+
+	// Alternatively you can initiate a new transport
+	// with a token from a cache.
+	cache := oauth2.NewFileCache("/path/to/file")
+	// NewTransportWithCache will try to read the cached
+	// token, if any error occurs, it returns the error.
+	// If a token is available at the cache, initiates
+	// a new transport authorized and authenticated with
+	// the read token. If token expires, and a new access
+	// token is retrieved, it writes the newly fetched
+	// token to the cache.
+	t, err = config.NewTransportWithCache(cache)
+	if err != nil {
+		log.Fatal(err)
+	}
+	client = http.Client{Transport: t}
+	client.Get("...")
+}
+
+func Example_serviceAccounts() {
+
+}
+
+func Example_appEngine() {
+
+}
+
+func Example_computeEngine() {
+
+}