lbcd/example_test.go

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// Copyright (c) 2013-2014 Conformal Systems LLC.
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package btcdb_test
import (
"fmt"
"github.com/conformal/btcdb"
_ "github.com/conformal/btcdb/memdb"
"github.com/conformal/btcnet"
"github.com/conformal/btcutil"
)
// This example demonstrates creating a new database and inserting the genesis
// block into it.
func ExampleCreateDB() {
// Create a database and schedule it to be closed on exit. This example
// uses a memory-only database to avoid needing to write anything to
// the disk. Typically, you would specify a persistent database driver
// such as "leveldb" and give it a database name as the second
// parameter.
db, err := btcdb.CreateDB("memdb")
if err != nil {
fmt.Println(err)
return
}
defer db.Close()
// Insert the main network genesis block.
genesis := btcutil.NewBlock(btcnet.MainNetParams.GenesisBlock)
newHeight, err := db.InsertBlock(genesis)
if err != nil {
fmt.Println(err)
return
}
fmt.Println("New height:", newHeight)
// Output:
// New height: 0
}