# Gemfile gem 'nostr_ruby'

require "nostr_ruby" sk = Nostr::Key.generate_private_key # => "8090fb3fe26e27d539ee349d70890d338c5e2e8b459e04c8e97658f03d2f9f33" pk = Nostr::Key.get_public_key(sk) # => "e7ded9bd42e7c74fcc6465962b919b7efcd5774ac6bea2ae6b81b2caa9d4d2e6"

puplic_key = Nostr::Bech32.decode(npub) # => {:hrp=>"npub", :data=>"e7ded9bd42e7c74fcc6465962b919b7efcd5774ac6bea2ae6b81b2caa9d4d2e6"} nprofile_data = Nostr::Bech32.decode("nprofile1qqs8hhhhhc3dmrje73squpz255ape7t448w86f7ltqemca7m0p99spgprpmhxue69uhkgar0dehkutnwdaehgu339e3k7mf06ras84") # => {:hrp=>"nprofile", :data=>{:pubkey=>["7bdef7be22dd8e59f4600e044aa53a1cf975a9dc7d27df5833bc77db784a5805"], :relay=>["wss://dtonon.nostr1.com/"]}} note_data = Nostr::Bech32.decode("note1xzce08egncw3mcm8l8edas6rrhgfj9l5uwwv2hz03zym0m9eg5hsxuyajp") # => {:hrp=>"note", :data=>"30b1979f289e1d1de367f9f2dec3431dd09917f4e39cc55c4f8889b7ecb9452f"} nevent_data = Nostr::Bech32.decode("nevent1qqsrpvvhnu5fu8gaudnlnuk7cdp3m5yezl6w88x9t38c3zdhaju52tcpzpmhxue69uhkztnwdaejumr0dshsz9nhwden5te0vfjhvmewdehhxarjxyhxxmmd9uq3wamnwvaz7tmzd96xxmmfdejhytnnda3kjctv9ulrdeva") # => {:hrp=>"nevent", :data=> {:id=>["30b1979f289e1d1de367f9f2dec3431dd09917f4e39cc55c4f8889b7ecb9452f"], :relay=>["wss://a.nos.lol/", "wss://bevo.nostr1.com/", "wss://bitcoiner.social/"]}} naddr_data = Nostr::Bech32.decode("naddr1qvzqqqr4gupzq77777lz9hvwt86xqrsyf2jn588ewk5aclf8mavr80rhmduy5kq9qqdkc6t5w3kx2ttvdamx2ttxdaez6mr0denj6en0wfkkzaqxq5r99") # => => {:hrp=>"naddr", :data=>{:kind=>[30023], :author=>["7bdef7be22dd8e59f4600e044aa53a1cf975a9dc7d27df5833bc77db784a5805"], :identifier=>["little-love-for-long-format"]}}

nsec = Nostr::Bech32.encode_nsec(sk) # => "nsec1szg0k0lzdcna2w0wxjwhpzgdxwx9ut5tgk0qfj8fwev0q0f0nuessml5ur" npub = Nostr::Bech32.encode_npub(pk) # => "npub1ul0dn02zulr5lnryvktzhyvm0m7d2a62c6l29tntsxev42w56tnqksrtfu" nprofile = Nostr::Bech32.encode_nprofile( pubkey: "7bdef7be22dd8e59f4600e044aa53a1cf975a9dc7d27df5833bc77db784a5805", relays: ["wss://dtonon.nostr1.com"], ) # => "nprofile1qqs8hhhhhc3dmrje73squpz255ape7t448w86f7ltqemca7m0p99spgpzamhxue69uhkgar0dehkutnwdaehgu339e3k7mg60me8x" note = Nostr::Bech32.encode_note("30b1979f289e1d1de367f9f2dec3431dd09917f4e39cc55c4f8889b7ecb9452f") # => "note1xzce08egncw3mcm8l8edas6rrhgfj9l5uwwv2hz03zym0m9eg5hsxuyajp" nevent = Nostr::Bech32.encode_nevent( id: "30b1979f289e1d1de367f9f2dec3431dd09917f4e39cc55c4f8889b7ecb9452f", relays: ["wss://nos.lol"], ) # => "nevent1qqsrpvvhnu5fu8gaudnlnuk7cdp3m5yezl6w88x9t38c3zdhaju52tcpp4mhxue69uhkummn9ekx7mqrqsqqqqqpux7e9q" naddr = Nostr::Bech32.encode_naddr( author: "7bdef7be22dd8e59f4600e044aa53a1cf975a9dc7d27df5833bc77db784a5805", identifier: "little-love-for-long-format", kind: 30023 ) # => "naddr1qgs8hhhhhc3dmrje73squpz255ape7t448w86f7ltqemca7m0p99spgrqsqqqa28qqdkc6t5w3kx2ttvdamx2ttxdaez6mr0denj6en0wfkkzaqn2tjdj"

require "nostr_ruby" # Detailed version s = Nostr::Signer.new(private_key: Nostr::Key.generate_private_key) c = Nostr::Client.new(signer: s) # Compact version, under the hood Client creates a Signer c = Nostr::Client.new(private_key: Nostr::Key.generate_private_key) c.private_key # => "7402b4b1ee09fb37b64ec2a958f1b7815d904c6dd44227bdef7912ef201af97d" c.public_key # => "a19f3c16b6e857d2b673c67eea293431fc175895513ca2f687a717152a5da466" c.nsec # => "nsec1wsptfv0wp8an0djwc2543udhs9weqnrd63pz00000yfw7gq6l97snckpdq" c.npub # => "npub15x0nc94kapta9dnncelw52f5x87pwky42y729a585ut322ja53nq72yrcr"

# Initialize a client, under the hood Client creates a Signer c = Nostr::Client.new( private_key: "7402b4b1ee09fb37b64ec2a958f1b7815d904c6dd44227bdef7912ef201af97d", relay: "wss://nos.lol" ) # Initialize an event e = Nostr::Event.new( kind: ..., pubkey: ..., created_at: ..., tags: ..., content: ..., pow: ..., delegation: ..., ) # Sign the event e = c.sign(e) # - - - - - - - - - - - - - - # Full async mode # Set the open callback c.on :connect do |event| puts 'Publish event...' end # Set the response callback c.on :ok do |event| puts "Event id: #{event.id}" puts "Accepted: #{event.success}" puts "Message: #{event.message}" end # Connect and send the event c.connect c.publish(e) # Do more things c.close # - - - - - - - - - - - - - - # Compact sync mode c.connect c.publish_and_wait(e) c.close

metadata = { name: "Mr Robot", about: "I walk around the city", picture: "https://upload.wikimedia.org/wikipedia/commons/3/35/Mr_robot_photo.jpg", nip05: "mrrobot@mrrobot.com" } e = Nostr::Event.new( kind: Nostr::Kind::METADATA, pubkey: c.public_key, content: metadata.to_json, )

e = Nostr::Event.new( kind: Nostr::Kind::SHORT_NOTE, pubkey: c.public_key, content: "Hello Nostr!", )

contact_list = [ ["54399b6d8200813bfc53177ad4f13d6ab712b6b23f91aefbf5da45aeb5c96b08", "wss://alicerelay.com/", "alice"], ["850708b7099215bf9a1356d242c2354939e9a844c1359d3b5209592a0b420452", "wss://bobrelay.com/nostr", "bob"], ["f7f4b0072368460a09138bf3966fb1c59d0bdadfc3aff4e59e6896194594a82a", "ws://carolrelay.com/ws", "carol"] ] e = Nostr::Event.new( kind: Nostr::Kind::CONTACT_LIST, pubkey: c.public_key, tags: contact_list.map { |c| ['p'] + c }, )

event_to_delete = "b91b3fb40128112c38dc54168b9f601c22bf8fcae6e70bb2a5f53e7f3ae44388" e = Nostr::Event.new( kind: Nostr::Kind::DELETION, pubkey: c.public_key, tags: [["e", event_to_delete]], )

e = Nostr::Event.new( kind: Nostr::Kind::REACTION, pubkey: c.public_key, content: "+", tags: [["e", target_event]], ) # You can also use emoji e2 = Nostr::Event.new( kind: Nostr::Kind::REACTION, pubkey: c.public_key, content: "🔥", tags: [["e", target_event]], )

# Just add the `pow` argument  e = Nostr::Event.new( kind: Nostr::Kind::SHORT_NOTE, pubkey: c.public_key, content: "Hello Nostr!", pow: 15, )

delegator = Nostr::Client.new(private_key: delegator_key) delegatee = "b1d8dfd69fe8795042dbbc4d3f85938a01d4740c54d2daf11088c75c50ff19d9" conditions = "kind=1&created_at>#{Time.now.to_i}&created_at<#{(Time.now + 60*60).to_i}" delegation_tag = delegator.generate_delegation_tag( to: delegatee, conditions: conditions ) # The `delegation_tag` is given to the delegatee so it can use it delegatee = Nostr::Client.new(private_key: delegatee_key) e = Nostr::Event.new( kind: Nostr::Kind::SHORT_NOTE, pubkey: delegatee.public_key, content: "Hello Nostr!", delegation: delegation_tag, ) delegatee.sign(e)

e = Nostr::Event.new( kind: Nostr::Kind::DIRECT_MESSAGE, pubkey: c.public_key, tags: [["p", Nostr::Bech32.decode(recipient)[:data]]], content: "Hello Alice!" )

payload = { :kind=>4, :pubkey=>"a19f3c16b6e857d2b673c67eea293431fc175895513ca2f687a717152a5da466", :created_at=>1725387307, :tags=>[["p", "e7ded9bd42e7c74fcc6465962b919b7efcd5774ac6bea2ae6b81b2caa9d4d2e6"]], :content=>"Nd7n/wId1oiprUCC4WWwNw==?iv=7gIRExcyO1xystretLIPnQ==", :id=>"b91b3fb40128112c38dc54168b9f601c22bf8fcae6e70bb2a5f53e7f3ae44388", :sig=>"73edf5a6acbefdd3d76f28ba90faaabe348a24c798f8fa33797eec29e2404c33a455815a59472ecd023441df38d815f83d81b95b8cb2f2c88a52982c8f7301e9" } e = Nostr::Event.new(**payload) c.decrypt(e) puts e.content => "Hello Alice!"

filter = Nostr::Filter.new( kinds: [1], authors: ["a19f3c16b6e857d2b673c67eea293431fc175895513ca2f687a717152a5da466"], since: Time.now - (60*60*24), # 24 hours ago limit: 10 ) c.on :connect do |message| puts "Connected!" end c.on :event do |message| puts ">> #{message.content}" end c.on :eose do |message| puts "Finished subscription #{message.subscription_id}" c.close end c.on :close do |message| puts "Connection closed" end c.subscribe(filter: filter) c.connect