github.com/gagliardetto/solana-go@v1.11.0/rpc/ws/examples/programSubscribe/programSubscribe.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  
    20  	"github.com/davecgh/go-spew/spew"
    21  	"github.com/gagliardetto/solana-go"
    22  	"github.com/gagliardetto/solana-go/rpc"
    23  	"github.com/gagliardetto/solana-go/rpc/ws"
    24  )
    25  
    26  func main() {
    27  	client, err := ws.Connect(context.Background(), rpc.MainNetBeta_WS)
    28  	if err != nil {
    29  		panic(err)
    30  	}
    31  	program := solana.MustPublicKeyFromBase58("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA") // token
    32  	defer client.Close()
    33  
    34  	sub, err := client.ProgramSubscribeWithOpts(
    35  		program,
    36  		rpc.CommitmentRecent,
    37  		solana.EncodingBase64Zstd,
    38  		nil,
    39  	)
    40  	if err != nil {
    41  		panic(err)
    42  	}
    43  	defer sub.Unsubscribe()
    44  
    45  	for {
    46  		got, err := sub.Recv()
    47  		if err != nil {
    48  			panic(err)
    49  		}
    50  		spew.Dump(got)
    51  
    52  		decodedBinary := got.Value.Account.Data.GetBinary()
    53  		if decodedBinary != nil {
    54  			// spew.Dump(decodedBinary)
    55  		}
    56  
    57  		// or if you requested solana.EncodingJSONParsed and it is supported:
    58  		rawJSON := got.Value.Account.Data.GetRawJSON()
    59  		if rawJSON != nil {
    60  			// spew.Dump(rawJSON)
    61  		}
    62  	}
    63  }