mirror of
https://github.com/SamyRai/tercul-backend.git
synced 2025-12-27 05:11:34 +00:00
6d40b4c686
- Add RateLimit, RequestValidation, and CORS middleware. - Configure middleware chain in API server. - Implement Redis cache for GraphQL Automatic Persisted Queries. - Add .golangci.yml and fix linting issues (shadowing, timeouts).
93 lines
2.7 KiB
Go
93 lines
2.7 KiB
Go
package cache
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import (
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"context"
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"encoding/json"
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"fmt"
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"time"
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)
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// Cache defines the interface for caching operations
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type Cache interface {
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// Get retrieves a value from the cache
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Get(ctx context.Context, key string, value interface{}) error
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// Set stores a value in the cache with an optional expiration
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Set(ctx context.Context, key string, value interface{}, expiration time.Duration) error
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// Delete removes a value from the cache
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Delete(ctx context.Context, key string) error
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// Clear removes all values from the cache
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Clear(ctx context.Context) error
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// GetMulti retrieves multiple values from the cache
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GetMulti(ctx context.Context, keys []string) (map[string][]byte, error)
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// SetMulti stores multiple values in the cache with an optional expiration
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SetMulti(ctx context.Context, items map[string]interface{}, expiration time.Duration) error
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}
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// Item represents a cache item with metadata
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type Item struct {
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Key string
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Value interface{}
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Expiration time.Duration
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}
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// MarshalBinary implements the encoding.BinaryMarshaler interface
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func (i *Item) MarshalBinary() ([]byte, error) {
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return json.Marshal(i.Value)
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}
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// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface
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func (i *Item) UnmarshalBinary(data []byte) error {
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return json.Unmarshal(data, &i.Value)
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}
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// KeyGenerator generates cache keys for different types of data
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type KeyGenerator interface {
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// EntityKey generates a key for an entity by ID
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EntityKey(entityType string, id uint) string
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// ListKey generates a key for a list of entities
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ListKey(entityType string, page, pageSize int) string
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// QueryKey generates a key for a custom query
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QueryKey(entityType, queryName string, params ...interface{}) string
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}
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// DefaultKeyGenerator implements the KeyGenerator interface
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type DefaultKeyGenerator struct {
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Prefix string
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}
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// NewDefaultKeyGenerator creates a new DefaultKeyGenerator
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func NewDefaultKeyGenerator(prefix string) *DefaultKeyGenerator {
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if prefix == "" {
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prefix = "tercul:"
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}
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return &DefaultKeyGenerator{
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Prefix: prefix,
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}
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}
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// EntityKey generates a key for an entity by ID
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func (g *DefaultKeyGenerator) EntityKey(entityType string, id uint) string {
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return g.Prefix + entityType + ":id:" + fmt.Sprintf("%d", id)
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}
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// ListKey generates a key for a list of entities
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func (g *DefaultKeyGenerator) ListKey(entityType string, page, pageSize int) string {
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return g.Prefix + entityType + ":list:" + fmt.Sprintf("%d:%d", page, pageSize)
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}
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// QueryKey generates a key for a custom query
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func (g *DefaultKeyGenerator) QueryKey(entityType, queryName string, params ...interface{}) string {
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key := g.Prefix + entityType + ":" + queryName
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for _, param := range params {
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key += ":" + fmt.Sprintf("%v", param)
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}
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return key
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}
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