A few minor changes

Author: kofoworola

clients/authcode.go

@@ -57,6 +57,7 @@ func (c *authCode) GenerateAccessToken(client_id, client_secret, scopes string,
 		return nil, err
 	}
 
+	// TODO work and get error in returned code
 	returnedURL, err := c.util.ReadLine("Enter the link you were redirected to after authorization", false)
 	if err != nil {
 		return nil, fmt.Errorf("error reading redirect URL: %w", err)
@@ -80,6 +81,7 @@ func (c *authCode) GenerateAccessToken(client_id, client_secret, scopes string,
 		"code":          {code},
 		"client_id":     {client_id},
 		"client_secret": {client_secret},
+		"redirect_uri":  {c.redirectURL},
 	}
 	r := &http.Request{
 		Method: "POST",
@@ -96,7 +98,7 @@ func (c *authCode) GenerateAccessToken(client_id, client_secret, scopes string,
 	if resp.StatusCode != http.StatusOK {
 		var errResp errorResponse
 		if err := json.NewDecoder(resp.Body).Decode(&errResp); err != nil {
-			return nil, fmt.Errorf("error decoding error response: %w", err)
+			return nil, fmt.Errorf("status code: %s; error decoding error response: %w", resp.Status, err)
 		}
 		return nil, fmt.Errorf("%s - %s", errResp.Error, errResp.Description)
 	}

main.go

@@ -12,26 +12,26 @@ import (
 
 var (
 	clientID     = kingpin.Flag("client-id", "The client ID to be used in getting the access_token.").Required().String()
-	clientSecret = kingpin.Flag("client-secret", "The client Secret to be used in the getting the access_token").Default("").String()
+	clientSecret = kingpin.Flag("client-secret", "The client Secret to be used in the getting the access_token").String()
 	scopes       = kingpin.Flag("scopes", "The requested scopes").Required().String()
 	customParams = kingpin.Flag("extra", "Extra params to be sent along with the client_id during authentication request").StringMap()
 
 	authCode                = kingpin.Command("authcode", "Perform an authorization_code grant flow; https://oauth.net/2/grant-types/authorization-code/")
 	authCodeURL             = authCode.Arg("auth_url", "The URL that will be used for the authorization code generation").Required().String()
-	tokenURL                = authCode.Arg("token_url", "The URL to be used in token generation").Default("").String()
-	authCodeRedirectURLFLag = authCode.Flag("redirect_url", "Redirect URL to be passed with the request").Default("").String()
+	tokenURL                = authCode.Arg("token_url", "The URL to be used in token generation").String()
+	authCodeRedirectURLFLag = authCode.Flag("redirect_url", "Redirect URL to be passed with the request").String()
 
 	client_credentials = kingpin.Command("client_credentials", "Perform client_credential grant flow; https://oauth.net/2/grant-types/client-credentials/")
 	clienCredsURL      = client_credentials.Arg("auth_url", "URL for generating client credential based access token").Required().String()
 
 	implicitGrant           = kingpin.Command("implicit", "Perform (Legacy) implicit grant type; https://oauth.net/2/grant-types/implicit/")
 	implicitURL             = implicitGrant.Arg("auth_url", "URL for generating implicit access_token").Required().String()
-	implicitRedirectURLFlag = implicitGrant.Flag("redirect_url", "Redirect URL to be passed with the request").Default("").String()
+	implicitRedirectURLFlag = implicitGrant.Flag("redirect_url", "Redirect URL to be passed with the request").String()
 
 	passwordGrant = kingpin.Command("password", "Perform (Legacy) password grant type; https://oauth.net/2/grant-types/password/")
 	passwordURL   = passwordGrant.Arg("auth_url", "URL for generatining password flow access_token").Required().String()
 	usernameFlag  = passwordGrant.Flag("username", "Username for authorization").Required().String()
-	passwordFlag  = passwordGrant.Flag("password", "User password").Default("").String()
+	passwordFlag  = passwordGrant.Flag("password", "User password").String()
 )
 
 func main() {
@@ -59,8 +59,9 @@ func main() {
 	token, err := client.GenerateAccessToken(*clientID, clientSecretValue, *scopes, *customParams)
 	if err != nil {
 		utils.PrintError(err)
+		os.Exit(1)
 	}
-	fmt.Printf("token is: %s", token.AccessToken)
+	fmt.Printf("token is: %s\n", token.AccessToken)
 }
 
 func validateClientSecret(util *utils.MainUtil) (string, error) {