Class: Sibit::Bitcoinchain

Inherits:
Object
  • Object
show all
Defined in:
lib/sibit/bitcoinchain.rb

Overview

Btc.com API.

Instance Method Summary collapse

Constructor Details

#initialize(log: Sibit::Log.new, http: Sibit::Http.new, dry: false) ⇒ Bitcoinchain

Constructor.



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# File 'lib/sibit/bitcoinchain.rb', line 41

def initialize(log: Sibit::Log.new, http: Sibit::Http.new, dry: false)
  @http = http
  @log = log
  @dry = dry
end

Instance Method Details

#balance(address) ⇒ Object

Gets the balance of the address, in satoshi.



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# File 'lib/sibit/bitcoinchain.rb', line 71

def balance(address)
  json = Sibit::Json.new(http: @http, log: @log).get(
    Iri.new('https://api-r.bitcoinchain.com/v1/address').append(address),
    accept: [200, 409]
  )[0]
  b = json['balance']
  if b.nil?
    @log.info("The balance of #{address} is not visible")
    return 0
  end
  b *= 100_000_000
  b = b.to_i
  @log.info("The balance of #{address} is #{b} satoshi (#{json['transactions']} txns)")
  b
end

#block(hash) ⇒ Object

This method should fetch a Blockchain block and return as a hash. Raises an exception if the block is not found.

Raises:



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# File 'lib/sibit/bitcoinchain.rb', line 113

def block(hash)
  head = Sibit::Json.new(http: @http, log: @log).get(
    Iri.new('https://api-r.bitcoinchain.com/v1/block').append(hash)
  )[0]
  raise Sibit::Error, "The block #{hash} is not found" if head.nil?
  txs = Sibit::Json.new(http: @http, log: @log).get(
    Iri.new('https://api-r.bitcoinchain.com/v1/block/txs').append(hash)
  )
  nxt = head['next_block']
  nxt = nil if nxt == '0000000000000000000000000000000000000000000000000000000000000000'
  {
    provider: self.class.name,
    hash: head['hash'],
    orphan: !head['is_main'],
    next: nxt,
    previous: head['prev_block'],
    txns: txs[0]['txs'].map do |t|
      {
        hash: t['self_hash'],
        outputs: t['outputs'].map do |o|
          {
            address: o['receiver'],
            value: o['value'] * 100_000_000
          }
        end
      }
    end
  }
end

#fees ⇒ Object

Get recommended fees, in satoshi per byte.

Raises:



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# File 'lib/sibit/bitcoinchain.rb', line 88

def fees
  raise Sibit::NotSupportedError, 'Not implemented yet'
end

#height(_hash) ⇒ Object

The height of the block.

Raises:



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# File 'lib/sibit/bitcoinchain.rb', line 53

def height(_hash)
  raise Sibit::NotSupportedError, 'Bitcoinchain API doesn\'t provide height()'
end

#latest ⇒ Object

Gets the hash of the latest block.



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# File 'lib/sibit/bitcoinchain.rb', line 93

def latest
  hash = Sibit::Json.new(http: @http, log: @log).get(
    Iri.new('https://api-r.bitcoinchain.com/v1/status')
  )['hash']
  @log.info("The latest block hash is #{hash}")
  hash
end

#next_of(hash) ⇒ Object

Get hash of the block after this one.

Raises:



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# File 'lib/sibit/bitcoinchain.rb', line 58

def next_of(hash)
  block = Sibit::Json.new(http: @http, log: @log).get(
    Iri.new('https://api-r.bitcoinchain.com/v1/block').append(hash)
  )[0]
  raise Sibit::Error, "Block #{hash} not found" if block.nil?
  nxt = block['next_block']
  nxt = nil if nxt == '0000000000000000000000000000000000000000000000000000000000000000'
  @log.info("The block #{hash} is the latest, there is no next block") if nxt.nil?
  @log.info("The next block of #{hash} is #{nxt}") unless nxt.nil?
  nxt
end

#price(_currency = 'USD') ⇒ Object

Current price of BTC in USD (float returned).

Raises:



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# File 'lib/sibit/bitcoinchain.rb', line 48

def price(_currency = 'USD')
  raise Sibit::NotSupportedError, 'Bitcoinchain API doesn\'t provide BTC price'
end

#push(_hex) ⇒ Object

Push this transaction (in hex format) to the network.

Raises:



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# File 'lib/sibit/bitcoinchain.rb', line 107

def push(_hex)
  raise Sibit::NotSupportedError, 'Not implemented yet'
end

#utxos(_sources) ⇒ Object

Fetch all unspent outputs per address.

Raises:



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# File 'lib/sibit/bitcoinchain.rb', line 102

def utxos(_sources)
  raise Sibit::NotSupportedError, 'Not implemented yet'
end