github.com/gagliardetto/solana-go@v1.11.0/rpc/examples/getBalance/getBalance.go (about)

     1  // Copyright 2021 github.com/gagliardetto
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package main
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  	"math/big"
    21  
    22  	"github.com/davecgh/go-spew/spew"
    23  	"github.com/gagliardetto/solana-go"
    24  	"github.com/gagliardetto/solana-go/rpc"
    25  )
    26  
    27  func main() {
    28  	endpoint := rpc.MainNetBeta_RPC
    29  	client := rpc.New(endpoint)
    30  
    31  	pubKey := solana.MustPublicKeyFromBase58("7xLk17EQQ5KLDLDe44wCmupJKJjTGd8hs3eSVVhCx932")
    32  	out, err := client.GetBalance(
    33  		context.TODO(),
    34  		pubKey,
    35  		rpc.CommitmentFinalized,
    36  	)
    37  	if err != nil {
    38  		panic(err)
    39  	}
    40  	spew.Dump(out)
    41  	spew.Dump(out.Value) // total lamports on the account; 1 sol = 1000000000 lamports
    42  
    43  	var lamportsOnAccount = new(big.Float).SetUint64(uint64(out.Value))
    44  	// Convert lamports to sol:
    45  	var solBalance = new(big.Float).Quo(lamportsOnAccount, new(big.Float).SetUint64(solana.LAMPORTS_PER_SOL))
    46  
    47  	// WARNING: this is not a precise conversion.
    48  	fmt.Println("◎", solBalance.Text('f', 10))
    49  }