37 lines
757 B
Go
37 lines
757 B
Go
package db
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import (
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"encoding/json"
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bolt "go.etcd.io/bbolt"
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)
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// Metadata represents db metadata informations
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type Metadata struct {
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Version int
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}
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const (
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metadataKey = "ID"
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)
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// ReadMetadata returns db metadata
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func (c *Client) ReadMetadata() error {
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return c.View(func(tx *bolt.Tx) error {
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b := tx.Bucket([]byte(bucketMetadata))
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if entryBytes := b.Get([]byte(metadataKey)); entryBytes != nil {
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return json.Unmarshal(entryBytes, &c.metadata)
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}
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return nil
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})
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}
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// WriteMetadata writes db metadata
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func (c *Client) WriteMetadata(metadata Metadata) error {
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entryBytes, _ := json.Marshal(metadata)
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return c.Update(func(tx *bolt.Tx) error {
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b := tx.Bucket([]byte(bucketMetadata))
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return b.Put([]byte(metadataKey), entryBytes)
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})
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}
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