45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package auth
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"github.com/redis/go-redis/v9"
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)
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type SessionReader interface {
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// GetSession returns ErrSessionNotFound if no valid session.
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GetSession(ctx context.Context, sessionToken string) (*Session, error)
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}
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type sessionReaderImpl struct {
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redisClient *redis.Client
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}
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// Exposes the concrete type so authServiceImpl can embed it without
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// hiding redisClient behind the SessionReader interface.
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func newSessionReader(redisClient *redis.Client) *sessionReaderImpl {
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return &sessionReaderImpl{redisClient: redisClient}
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}
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func NewSessionReader(redisClient *redis.Client) SessionReader {
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return newSessionReader(redisClient)
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}
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func (r *sessionReaderImpl) GetSession(ctx context.Context, token string) (*Session, error) {
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sessionInfo, err := r.redisClient.Get(ctx, token).Result()
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if err != nil {
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if errors.Is(err, redis.Nil) {
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return nil, ErrSessionNotFound
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}
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return nil, fmt.Errorf("error getting session: %w", err)
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}
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var session Session
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err = json.Unmarshal([]byte(sessionInfo), &session)
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return &session, nil
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}
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