Add get_count_confirmations method to NetworkAPI

bit/network/services.py

@@ -2,6 +2,7 @@
 import json
 import logging
 from decimal import Decimal, getcontext
+import blockcypher
 
 from bit.constants import BTC
 from bit.network import currency_to_satoshi
@@ -944,6 +945,16 @@ def broadcast_tx_testnet(cls, tx_hex):  # pragma: no cover
         return True if r.status_code == 200 else False
 
 
+class BlockcypherApi:
+    @classmethod
+    def get_count_confirmations(cls, txid):
+        return blockcypher.get_num_confirmations(txid)
+
+    @classmethod
+    def count_confirmations_testnet(cls, txid):
+        return blockcypher.get_num_confirmations(txid, coin_symbol="btc-testnet")
+
+
 class NetworkAPI:
     IGNORED_ERRORS = (
         ConnectionError,
@@ -986,6 +997,9 @@ class NetworkAPI:
         SmartbitAPI.broadcast_tx,  # Limit 5/minute
         BlockchainAPI.broadcast_tx,
     ]
+    GET_COUNT_CONFIRMATIONS_MAIN = [
+        BlockcypherApi.get_count_confirmations
+    ]
 
     GET_BALANCE_TEST = [
         BlockchairAPI.get_balance_testnet,
@@ -1015,6 +1029,9 @@ class NetworkAPI:
         BitcoreAPI.broadcast_tx_testnet,
         SmartbitAPI.broadcast_tx_testnet,  # Limit 5/minute
     ]
+    GET_COUNT_CONFIRMATIONS_TEST = [
+        BlockcypherApi.count_confirmations_testnet
+    ]
 
     @classmethod
     def connect_to_node(cls, user, password, host='localhost', port=8332, use_https=False, testnet=False, path=""):
@@ -1250,3 +1267,23 @@ def broadcast_tx_testnet(cls, tx_hex):  # pragma: no cover
             raise ConnectionError('Transaction broadcast failed, or Unspents were already used.')
 
         raise ConnectionError('All APIs are unreachable.')
+
+    @classmethod
+    def get_count_confirmations(cls, txid):
+        for api_call in cls.GET_COUNT_CONFIRMATIONS_MAIN:
+            try:
+                return api_call(txid)
+            except cls.IGNORED_ERRORS:
+                pass
+
+        raise ConnectionError('All APIs are unreachable.')
+
+    @classmethod
+    def get_count_confirmations_testnet(cls, txid):
+        for api_call in cls.GET_COUNT_CONFIRMATIONS_TEST:
+            try:
+                return api_call(txid)
+            except cls.IGNORED_ERRORS:
+                pass
+
+        raise ConnectionError('All APIs are unreachable.')

setup.py

@@ -41,7 +41,7 @@
         'Programming Language :: Python :: Implementation :: PyPy'
     ),
 
-    install_requires=('coincurve>=4.3.0', 'requests'),
+    install_requires=('coincurve>=4.3.0', 'requests', 'blockcypher'),
     extras_require={
         'cli': ('appdirs', 'click', 'privy', 'tinydb'),
         'cache': ('lmdb', ),