initial commit

internal/pkg/oauth/linkedin/linkedin.go

@@ -0,0 +1,74 @@
+package linkedin
+
+import (
+	"context"
+	"encoding/json"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/linkedin"
+	"io"
+
+	"base/internal/pkg/oauth/types"
+)
+
+type client struct {
+	oauthConfig *oauth2.Config
+}
+
+func New(config oauth2.Config) types.Oauth {
+	oauthConfig := &oauth2.Config{
+		ClientID:     config.ClientID,
+		ClientSecret: config.ClientSecret,
+		Endpoint:     linkedin.Endpoint,
+		RedirectURL:  config.RedirectURL,
+		Scopes:       config.Scopes,
+	}
+	return &client{oauthConfig: oauthConfig}
+}
+
+func (l client) GetConsentAuthUrl(ctx context.Context, state string) string {
+	return l.oauthConfig.AuthCodeURL(state, oauth2.AccessTypeOffline)
+}
+
+func (l client) ExchangeCodeWithToken(ctx context.Context, code string) (*types.Token, error) {
+	exchange, err := l.oauthConfig.Exchange(ctx, code, oauth2.AccessTypeOffline)
+	if err != nil {
+		return nil, err
+	}
+	token, err := l.oauthConfig.TokenSource(ctx, exchange).Token()
+	if err != nil {
+		return nil, err
+	}
+	return &types.Token{
+		AccessToken:  token.AccessToken,
+		TokenType:    token.TokenType,
+		RefreshToken: token.RefreshToken,
+		ExpiresIn:    token.ExpiresIn,
+	}, nil
+}
+
+func (l client) GetUserInfo(
+	ctx context.Context,
+	accessToken string,
+	refreshToken string,
+) (types.UserInfo, error) {
+	resp, err := l.oauthConfig.Client(ctx, &oauth2.Token{
+		AccessToken:  accessToken,
+		RefreshToken: refreshToken,
+	}).Get("https://api.linkedin.com/v2/me")
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	var user UserInfo
+
+	if err = json.Unmarshal(data, &user); err != nil {
+		return nil, err
+	}
+	return user, nil
+}