feat: evm api endpoint (#130)

Author: alexbarnsley

client/api/blocks.py

@@ -10,7 +10,7 @@ def all(self, page=None, limit=100, **kwargs):
             'limit': limit,
             **extra_params
         }
-        return self.request_get('blocks', params)
+        return self.with_endpoint('api').request_get('blocks', params)
 
     def get(self, block_id):
         return self.with_endpoint('api').request_get(f'blocks/{block_id}')

client/api/evm.py

@@ -0,0 +1,12 @@
+from typing import Any
+from client.resource import Resource
+
+
+class EVM(Resource):
+    def eth_call(self, params: list[dict[str, Any]]):
+        return self.with_endpoint('evm').request_post('', {
+            'jsonrpc': "2.0",
+            'method': "eth_call",
+            'params': [params, "latest"],
+            'id': None,
+        })

client/api/votes.py

@@ -8,7 +8,7 @@ def all(self, page=None, limit=100):
             'page': page,
             'limit': limit,
         }
-        return self.request_get('votes', params)
+        return self.with_endpoint('api').request_get('votes', params)
 
     def get(self, vote_id):
         return self.with_endpoint('api').request_get(f'votes/{vote_id}')

client/client.py

@@ -1,13 +1,14 @@
 from typing import Union
-from client.api.receipts import Receipts
 from client.connection import ClientHosts, Connection
 from client.api.api_nodes import ApiNodes
 from client.api.blockchain import Blockchain
 from client.api.blocks import Blocks
 from client.api.commits import Commits
 from client.api.delegates import Delegates
+from client.api.evm import EVM
 from client.api.node import Node
 from client.api.peers import Peers
+from client.api.receipts import Receipts
 from client.api.rounds import Rounds
 from client.api.transactions import Transactions
 from client.api.votes import Votes
@@ -61,6 +62,14 @@ def delegates(self):
         """
         return Delegates(self.connection)
 
+    @property
+    def evm(self):
+        """
+        :return: EVM API
+        :rtype: client.api.evm.EVM
+        """
+        return EVM(self.connection)
+
     @property
     def node(self):
         """

tests/api/test_evm.py

@@ -0,0 +1,24 @@
+import json
+import responses
+
+from client import ArkClient
+
+
+def test_eth_call_methods_correct_url():
+    responses.add(
+        responses.POST,
+        'http://127.0.0.1:4002/evm/api/',
+        json={'success': True},
+        status=200
+    )
+
+    client = ArkClient('http://127.0.0.1:4002/evm/api')
+    client.evm.eth_call([{ 'random': 'data' }])
+    assert len(responses.calls) == 1
+    assert responses.calls[0].request.url == 'http://127.0.0.1:4002/evm/api/'
+    assert json.loads(responses.calls[0].request.body.decode()) == {
+        'jsonrpc': '2.0',
+        'method': 'eth_call',
+        'params': [[{ 'random': 'data' }], 'latest'],
+        'id': None,
+    }

tests/test_client.py

@@ -12,6 +12,7 @@ def test_client():
     assert hasattr(client, 'blocks') == True
     assert hasattr(client, 'commits') == True
     assert hasattr(client, 'delegates') == True
+    assert hasattr(client, 'evm') == True
     assert hasattr(client, 'node') == True
     assert hasattr(client, 'peers') == True
     assert hasattr(client, 'rounds') == True