mirror of https://github.com/golang-jwt/jwt.git
Add error handling to examples (#312)
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908d356713
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c776b83291
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@ -150,20 +150,15 @@ func verifyToken() error {
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}
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})
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// Print some debug data
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if *flagDebug && token != nil {
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fmt.Fprintf(os.Stderr, "Header:\n%v\n", token.Header)
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fmt.Fprintf(os.Stderr, "Claims:\n%v\n", token.Claims)
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}
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// Print an error if we can't parse for some reason
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if err != nil {
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return fmt.Errorf("couldn't parse token: %w", err)
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}
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// Is token invalid?
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if !token.Valid {
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return fmt.Errorf("token is invalid")
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// Print some debug data
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if *flagDebug {
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fmt.Fprintf(os.Stderr, "Header:\n%v\n", token.Header)
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fmt.Fprintf(os.Stderr, "Claims:\n%v\n", token.Claims)
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}
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// Print the token details
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@ -279,7 +274,7 @@ func showToken() error {
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}
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token, err := jwt.Parse(string(tokData), nil)
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if token == nil {
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if err != nil {
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return fmt.Errorf("malformed token: %w", err)
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}
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@ -3,6 +3,7 @@ package jwt_test
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import (
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"errors"
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"fmt"
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"log"
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"time"
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"github.com/golang-jwt/jwt/v5"
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@ -24,7 +25,7 @@ func ExampleNewWithClaims_registeredClaims() {
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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ss, err := token.SignedString(mySigningKey)
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fmt.Printf("%v %v", ss, err)
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fmt.Println(ss, err)
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// Output: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJ0ZXN0IiwiZXhwIjoxNTE2MjM5MDIyfQ.0XN_1Tpp9FszFOonIBpwha0c_SfnNI22DhTnjMshPg8 <nil>
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}
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@ -67,7 +68,7 @@ func ExampleNewWithClaims_customClaimsType() {
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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ss, err := token.SignedString(mySigningKey)
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fmt.Printf("%v %v", ss, err)
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fmt.Println(ss, err)
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// Output: foo: bar
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// eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJpc3MiOiJ0ZXN0IiwiZXhwIjoxNTE2MjM5MDIyfQ.xVuY2FZ_MRXMIEgVQ7J-TFtaucVFRXUzHm9LmV41goM <nil>
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@ -86,11 +87,12 @@ func ExampleParseWithClaims_customClaimsType() {
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token, err := jwt.ParseWithClaims(tokenString, &MyCustomClaims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte("AllYourBase"), nil
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})
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if claims, ok := token.Claims.(*MyCustomClaims); ok && token.Valid {
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fmt.Printf("%v %v", claims.Foo, claims.RegisteredClaims.Issuer)
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if err != nil {
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log.Fatal(err)
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} else if claims, ok := token.Claims.(*MyCustomClaims); ok {
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fmt.Println(claims.Foo, claims.RegisteredClaims.Issuer)
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} else {
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fmt.Println(err)
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log.Fatal("unknown claims type, cannot proceed")
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}
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// Output: bar test
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@ -109,11 +111,12 @@ func ExampleParseWithClaims_validationOptions() {
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token, err := jwt.ParseWithClaims(tokenString, &MyCustomClaims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte("AllYourBase"), nil
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}, jwt.WithLeeway(5*time.Second))
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if claims, ok := token.Claims.(*MyCustomClaims); ok && token.Valid {
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fmt.Printf("%v %v", claims.Foo, claims.RegisteredClaims.Issuer)
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if err != nil {
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log.Fatal(err)
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} else if claims, ok := token.Claims.(*MyCustomClaims); ok {
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fmt.Println(claims.Foo, claims.RegisteredClaims.Issuer)
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} else {
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fmt.Println(err)
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log.Fatal("unknown claims type, cannot proceed")
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}
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// Output: bar test
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@ -147,11 +150,12 @@ func ExampleParseWithClaims_customValidation() {
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token, err := jwt.ParseWithClaims(tokenString, &MyCustomClaims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte("AllYourBase"), nil
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}, jwt.WithLeeway(5*time.Second))
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if claims, ok := token.Claims.(*MyCustomClaims); ok && token.Valid {
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fmt.Printf("%v %v", claims.Foo, claims.RegisteredClaims.Issuer)
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if err != nil {
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log.Fatal(err)
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} else if claims, ok := token.Claims.(*MyCustomClaims); ok {
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fmt.Println(claims.Foo, claims.RegisteredClaims.Issuer)
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} else {
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fmt.Println(err)
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log.Fatal("unknown claims type, cannot proceed")
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}
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// Output: bar test
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@ -2,6 +2,7 @@ package jwt_test
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import (
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"fmt"
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"log"
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"os"
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"time"
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@ -56,8 +57,11 @@ func ExampleParse_hmac() {
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// hmacSampleSecret is a []byte containing your secret, e.g. []byte("my_secret_key")
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return hmacSampleSecret, nil
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})
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if err != nil {
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log.Fatal(err)
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}
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if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
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if claims, ok := token.Claims.(jwt.MapClaims); ok {
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fmt.Println(claims["foo"], claims["nbf"])
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} else {
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fmt.Println(err)
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@ -83,9 +83,7 @@ func Example_getTokenViaHTTP() {
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"user": {"test"},
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"pass": {"known"},
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})
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if err != nil {
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fatal(err)
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}
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fatal(err)
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if res.StatusCode != 200 {
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fmt.Println("Unexpected status code", res.StatusCode)
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