如何使用 golang 框架管理异地数据副本？

import (
    "github.com/decred/dcrd/chaincfg/chainhash"
)

// 获取区块哈希值
prevHash := chainhash.Hash{}
blockHash := chainhash.Hash{}

// 连接到对等节点并获取区块
conn, err := net.Dial("tcp", "127.0.0.1:8333")
if err != nil {
    log.Fatal(err)
}
defer conn.Close()
msg := wire.MsgGetData{
    Inv: wire.InvVect{
        Type: wire.InvTypeBlock,
        Hash: blockHash,
    },
}
err = wire.WriteMessage(conn, &msg)
if err != nil {
    log.Fatal(err)
}
// 从对等节点读取块
block, err := wire.ReadBlockHeader(conn)
if err != nil {
    log.Fatal(err)
}

// 在本地存储块
file, err := os.OpenFile("blocks/"+blockHash.String(), os.O_CREATE|os.O_WRONLY, 0600)
if err != nil {
    log.Fatal(err)
}
defer file.Close()
_, err = file.Write(block.Bytes())
if err != nil {
    log.Fatal(err)
}

import (
    "github.com/neo4j/neo4j-go-driver/neo4j"
)

// 获取 Driver 实例
driver, err := neo4j.NewDriver("bolt://127.0.0.1:7687", neo4j.BasicAuth("neo4j", "password", ""))
if err != nil {
    log.Fatal(err)
}
defer driver.Close()

// 获取 Session 实例
session, err := driver.NewSession(neo4j.SessionConfig{AccessMode: neo4j.AccessModeWrite})
if err != nil {
    log.Fatal(err)
}
defer session.Close()

// 执行查询
query := `
    CREATE (a:Person {name: 'Alice'})
    CREATE (b:Person {name: 'Bob'})
    CREATE (a)-[:KNOWS]-(b)
`
result, err := session.Run(query, nil)
if err != nil {
    log.Fatal(err)
}
defer result.Close()

// 打印查询结果
for result.Next() {
    nodes, err := result.GraphNodes()
    if err != nil {
        log.Fatal(err)
    }
    log.Println(nodes)
}