mirror of https://github.com/bumi/lnrpc
100 lines
4.1 KiB
Ruby
100 lines
4.1 KiB
Ruby
require "lnrpc"
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# establish a connection
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lnd = Lnrpc::Client.new() # use defaults for credentials, macaroon and address
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# get basic info
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get_info_res = lnd.lightning.get_info
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puts get_info_res.alias
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# get wallet balance
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puts lnd.lightning.wallet_balance.total_balance
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# pay an invoice
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pay_request = "lntb50u1pw9mmndpp5nvnff958pxc9eqknwntyxapjw7l5grt5e2y70cmmnu0lljfa0sdqdpsgfkx7cmtwd68yetpd5s9xct5v4kxc6t5v5s8yatz0ysxwetdcqzysxqyz5vqjkhlyn40z76gyn7dx32p9j58dftve9xrlvnqqazht7w2fdauukhyhr9y4k3ngjn8s6srglj8swk7tm70ng54wdkq47ahytpwffvaeusp500csz"
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lnd.pay(payment_request: pay_request) # or:
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lnd.router.send_payment_v2(payment_request: pay_request)
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# keysend payment
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dest = Lnrpc.to_byte_array('038474ec195f497cf4036e5994bd820dd365bb0aaa7fb42bd9b536913a1a2dcc9e')
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lnd.keysend(dest: dest, amt: 1000)
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# create invoice
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invoice_res = lnd.lightning.add_invoice(value: 1000, memo: 'I :heart: ruby')
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puts invoice_res.payment_request
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# get fee estimates
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puts lnd.versioner.get_version
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puts lnd.wallet_kit.estimate_fee(conf_target: 10)
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puts lnd.wallet_kit.next_addr
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# print incoming invoices
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lnd.lightning.subscribe_invoices(settle_index: 1).each do |invoice|
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puts invoice.payment_request
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end
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# sign a message with your node
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signed_message = lnd.lightning.sign_message({ msg: "Money printer goes brrr" })
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puts "Signature: " + signed_message.signature
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# verify a signed message by another node
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verification_response = lnd.lightning.verify_message({
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msg: "Money printer goes brrr",
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signature: signed_message.signature
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})
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puts "Pubkey: " + verification_response.pubkey # pubkey of the node that signed
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puts "Valid: " + verification_response.valid.to_s
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# get information on a node
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node_info_response = lnd.lightning.get_node_info(pub_key: verification_response.pubkey, include_channels: true)
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puts "Updated: " + Time.at(node_info_response.node.last_update).to_s
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puts "Pubkey: " + node_info_response.node.pub_key.to_s
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puts "Alias: " + node_info_response.node.alias.to_s
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puts "Color: " + node_info_response.node.color.to_s
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puts "Channels: " + node_info_response.num_channels.to_s
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puts "Capacity SAT: " + node_info_response.total_capacity.to_s
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puts "Address: " + node_info_response.node.addresses.first["addr"].to_s
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# extract channel information
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node_info_response.channels.each do |channel|
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puts "Channel ID: " + channel["channel_id"].to_s
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puts "Channel 1:" + channel["node1_pub"].to_s # pubkey of the first node
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puts "Channel 2:" + channel["node2_pub"].to_s # pubkey of the second node
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puts "Channel Capacity:" + channel["capacity"].to_s
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end
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# update channel policy
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channel = lnd.lightning.list_channels.channels[0]
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puts lnd.lightning.get_chan_info(chan_id: channel.chan_id)
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channel_point = {
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funding_txid_str: channel.channel_point.split(":")[0],
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output_index: channel.channel_point.split(":")[1].to_i
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}
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lnd.lightning.update_channel_policy({
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time_lock_delta: 40,
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base_fee_msat: 1100,
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chan_point: channel_point
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})
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# peer node
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address = {pubkey: "03423790614f023e3c0cdaa654a3578e919947e4c3a14bf5044e7c787ebd11af1a", host: "98.142.251.170:9735"}
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response = lnd.lightning.connect_peer(addr: address)
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# open channel
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# note: Lnrpc needs to connect with an admin macaroon, and the node needs to be an existing peer.
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pubkey = Lnrpc.to_byte_array("031f2669adab71548fad4432277a0d90233e3bc07ac29cfb0b3e01bd3fb26cb9fa")
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response = lnd.lightning.open_channel({node_pubkey: pubkey, local_funding_amount: 21000})
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# extract details from a lightning invoice
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lightning_invoice = "lnbc990..." # created by payee
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invoice_details = lnd.lightning.decode_pay_req({pay_req: lightning_invoice})
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puts invoice_details.inspect
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puts "Destination: " + invoice_details.destination.to_s
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puts "Amount Sats: " + invoice_details.num_satoshis.to_s
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puts "Description: " + invoice_details.description.to_s
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puts "Created At: " + Time.at(invoice_details.timestamp).to_s
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puts "Expiry Hours: " + (invoice_details.expiry/3600).to_s
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puts "Payment Hash: " + invoice_details.payment_hash.to_s
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# Payment hash should match a hashed version of the preimage
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preimage = "f2a3a..." # known by payee, and revealed to the payer only if payment is successful
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puts "Payment verified!" if invoice_details.payment_hash == Digest::SHA256.hexdigest([preimage].pack("H*")) |