UpdateChannelPolicy - 更新通道政策
pdateChannelPolicy 允许调用者更新全部通道或指定通道的手续费安排和通道政策。
gRPC请求 - PolicyUpdateRequest
字段如下:
- global:更新是否应用于当前所有活动的通道, bool
- chan_point:如果设置该值,则更新仅作用于这个指定的通道, 类型:ChannelPoint
- base_fee_msat:与发送金额无关的基准手续费, 单位:milli-satoshi,int64
- fee_rate:手续费率,单位:milli-satoshi, double
- time_lock_delta:HTLC的时间锁差额, uint32
gRPC响应 - PolicyUpdateResponse
无字段。
示例代码
Python示例代码
>>> import codecs, grpc, os
>>> import rpc_pb2 as ln, rpc_pb2_grpc as lnrpc
>>> macaroon = codecs.encode(open('LND_DIR/data/chain/bitcoin/simnet/admin.macaroon', 'rb').read(), 'hex')
>>> os.environ['GRPC_SSL_CIPHER_SUITES'] = 'HIGH+ECDSA'
>>> cert = open('LND_DIR/tls.cert', 'rb').read()
>>> ssl_creds = grpc.ssl_channel_credentials(cert)
>>> channel = grpc.secure_channel('localhost:10009', ssl_creds)
>>> stub = lnrpc.LightningStub(channel)
>>> request = ln.PolicyUpdateRequest(
global=<bool>,
chan_point=<ChannelPoint>,
base_fee_msat=<int64>,
fee_rate=<double>,
time_lock_delta=<uint32>,
)
>>> response = stub.UpdateChannelPolicy(request)
>>> print(response)
{
}
JavaScript示例代码
> var fs = require('fs');
> var grpc = require('grpc');
> var lnrpc = grpc.load('rpc.proto').lnrpc;
> process.env.GRPC_SSL_CIPHER_SUITES = 'HIGH+ECDSA'
> var lndCert = fs.readFileSync('LND_DIR/tls.cert');
> var sslCreds = grpc.credentials.createSsl(lndCert);
> var macaroonCreds = grpc.credentials.createFromMetadataGenerator(function(args, callback) {
var macaroon = fs.readFileSync("LND_DIR/data/chain/bitcoin/simnet/admin.macaroon").toString('hex');
var metadata = new grpc.Metadata()
metadata.add('macaroon', macaroon);
callback(null, metadata);
});
> var creds = grpc.credentials.combineChannelCredentials(sslCreds, macaroonCreds);
> var lightning = new lnrpc.Lightning('localhost:10009', creds);
> var request = {
global: <bool>,
chan_point: <ChannelPoint>,
base_fee_msat: <int64>,
fee_rate: <double>,
time_lock_delta: <uint32>,
}
> lightning.updateChannelPolicy(request, function(err, response) {
console.log(response);
})
{
}