94 lines
2.5 KiB
Go
94 lines
2.5 KiB
Go
package config
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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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"log"
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"os"
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"strconv"
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"time"
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"github.com/valkey-io/valkey-go"
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)
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type ValkeyConfig struct {
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Host string `json:"host"`
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Port string `json:"port"`
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MaxConns int `json:"max_conns"`
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TimeoutMs int `json:"timeout_ms"`
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}
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func LoadValkeyConfig(file string) (ValkeyConfig, error) {
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var config ValkeyConfig
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configFile, err := os.Open(file)
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if err != nil {
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return config, fmt.Errorf("failed to open config file: %w", err)
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}
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defer configFile.Close()
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if err := json.NewDecoder(configFile).Decode(&config); err != nil {
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return config, fmt.Errorf("failed to parse Valkey config: %w", err)
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}
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// Override with environment variables if set
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if host := os.Getenv("VALKEY_HOST"); host != "" {
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config.Host = host
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}
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if port := os.Getenv("VALKEY_PORT"); port != "" {
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config.Port = port
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}
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if maxConns := os.Getenv("VALKEY_MAX_CONNS"); maxConns != "" {
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if val, err := strconv.Atoi(maxConns); err == nil {
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config.MaxConns = val
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}
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}
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if timeoutMs := os.Getenv("VALKEY_TIMEOUT_MS"); timeoutMs != "" {
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if val, err := strconv.Atoi(timeoutMs); err == nil {
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config.TimeoutMs = val
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}
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}
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return config, nil
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}
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func ConnectToValkey(configPath string) (valkey.Client, error) {
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fmt.Println("Loading Valkey configuration...")
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valkeyConfig, err := LoadValkeyConfig(configPath)
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if err != nil {
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return nil, fmt.Errorf("failed to load Valkey config: %v", err)
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}
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fmt.Println("Valkey configuration loaded successfully!")
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// Setup Valkey client options
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options := valkey.ClientOption{
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InitAddress: []string{fmt.Sprintf("%s:%s", valkeyConfig.Host, valkeyConfig.Port)},
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// Additional options can be added here if required
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}
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fmt.Printf("Connecting to Valkey at %s:%s...\n", valkeyConfig.Host, valkeyConfig.Port)
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client, err := valkey.NewClient(options)
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if err != nil {
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return nil, fmt.Errorf("failed to connect to Valkey: %v", err)
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}
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// Optionally, perform a ping to validate the connection
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ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*time.Duration(valkeyConfig.TimeoutMs))
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defer cancel()
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if err := client.Do(ctx, client.B().Ping().Build()).Error(); err != nil {
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client.Close()
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return nil, fmt.Errorf("failed to ping Valkey: %v", err)
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}
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log.Println("Connected to Valkey successfully!")
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return client, nil
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}
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func DisconnectFromValkey(client valkey.Client) error {
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fmt.Println("Disconnecting from Valkey...")
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client.Close()
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log.Println("Disconnected from Valkey successfully!")
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return nil
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}
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