github.com/gagliardetto/solana-go@v1.11.0/rpc/examples/isBlockhashValid/isValidBlockhash.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  
    21  	"github.com/davecgh/go-spew/spew"
    22  	"github.com/gagliardetto/solana-go"
    23  	"github.com/gagliardetto/solana-go/rpc"
    24  )
    25  
    26  func main() {
    27  	endpoint := rpc.MainNetBeta_RPC
    28  	client := rpc.New(endpoint)
    29  
    30  	blockHash := solana.MustHashFromBase58("J7rBdM6AecPDEZp8aPq5iPSNKVkU5Q76F3oAV4eW5wsW")
    31  	out, err := client.IsBlockhashValid(
    32  		context.TODO(),
    33  		blockHash,
    34  		rpc.CommitmentFinalized,
    35  	)
    36  	if err != nil {
    37  		panic(err)
    38  	}
    39  	spew.Dump(out)
    40  	spew.Dump(out.Value) // true or false
    41  
    42  	fmt.Println("is blockhash valid:", out.Value)
    43  }