Include provider_uri in configuration.

cli/main.py

@@ -639,7 +639,7 @@ def status(config, provider, contracts, network):
     MinerEscrow .............. {escrow}
     PolicyManager ............ {manager}
         
-    """.format(registry_filepath=config.blockchain.interface.registry_filepath,
+    """.format(registry_filepath=config.blockchain.interface.filepath,
                token=config.token_agent.contract_address,
                escrow=config.miner_agent.contract_address,
                manager=config.policy_agent.contract_address,
@@ -684,12 +684,14 @@ def status(config, provider, contracts, network):
 @click.option('--rest-host', type=str)
 @click.option('--rest-port', type=int)
 @click.option('--db-name', type=str)
+@click.option('--blockchain-uri', type=str)
 @click.option('--checksum-address', type=str)
 @click.option('--metadata-dir', type=click.Path())
 @click.option('--config-file', type=click.Path())
 def run_ursula(rest_port,
                rest_host,
                db_name,
+               blockchain_uri,
                checksum_address,
                federated_only,
                metadata_dir,
@@ -726,18 +728,23 @@ def run_ursula(rest_port,
                                             db_name=db_name,
                                             is_me=True,
                                             federated_only=federated_only,
+                                            blockchain_uri=blockchain_uri,
                                             checksum_address=checksum_address,
                                             # save_metadata=False,  # TODO
                                             load_metadata=True,
                                             known_metadata_dir=metadata_dir,
                                             start_learning_now=True,
                                             abort_on_learning_error=temp)
+
     try:
+
         URSULA = ursula_config.produce()
         URSULA.get_deployer().run()       # Run TLS Deploy (Reactor)
         if not URSULA.federated_only:     # TODO: Resume / Init
             URSULA.stake()                # Start Staking Daemon
+
     finally:
+
         click.echo("Cleaning up temporary runtime files and directories")
         ursula_config.cleanup()  # TODO: Integrate with other "graceful" shutdown functionality
         click.echo("Exited gracefully")

nucypher/config/characters.py

@@ -5,7 +5,8 @@ from cryptography.hazmat.primitives.asymmetric import ec
 from cryptography.hazmat.primitives.asymmetric.ec import EllipticCurve
 from cryptography.x509 import Certificate
 
-from nucypher.blockchain.eth.agents import EthereumContractAgent
+from nucypher.blockchain.eth.agents import EthereumContractAgent, NucypherTokenAgent
+from nucypher.blockchain.eth.chains import Blockchain
 from nucypher.config.constants import DEFAULT_CONFIG_FILE_LOCATION
 from nucypher.config.node import NodeConfiguration
 from nucypher.crypto.powers import CryptoPower
@@ -36,6 +37,7 @@ class UrsulaConfiguration(NodeConfiguration):
                  crypto_power: CryptoPower = None,
 
                  # Blockchain
+                 blockchain_uri: str = None,
                  miner_agent: EthereumContractAgent = None,
                  checksum_address: str = None,
 
@@ -62,8 +64,9 @@ class UrsulaConfiguration(NodeConfiguration):
         #
         # Blockchain
         #
-        self.miner_agent = miner_agent
+        self.blockchain_uri = blockchain_uri
         self.checksum_address = checksum_address
+        self.miner_agent = miner_agent
 
         super().__init__(*args, **kwargs)
 
@@ -86,7 +89,6 @@ class UrsulaConfiguration(NodeConfiguration):
     def payload(self) -> dict:
 
         ursula_payload = dict(
-
          # REST
          rest_host=self.rest_host,
          rest_port=self.rest_port,
@@ -104,9 +106,9 @@ class UrsulaConfiguration(NodeConfiguration):
          crypto_power=self.crypto_power,
 
          # Blockchain
-                 miner_agent=self.miner_agent,
          checksum_address=self.checksum_address,
-                 registry_filepath=self.registry_filepath
+         registry_filepath=self.registry_filepath,
+         miner_agent=self.miner_agent
         )
 
         base_payload = super().payload
@@ -116,6 +118,12 @@ class UrsulaConfiguration(NodeConfiguration):
     def produce(self, **overrides):
         merged_parameters = {**self.payload, **overrides}
         from nucypher.characters.lawful import Ursula
+
+        if self.federated_only is False:
+            blockchain = Blockchain.connect(provider_uri=self.blockchain_uri)  # TODO: move this..?
+            token_agent = NucypherTokenAgent(blockchain=blockchain)
+            merged_parameters.update(token_agent=token_agent)
+
         ursula = Ursula(**merged_parameters)
 
         # if self.save_metadata:                     # TODO: Does this belong here..?

nucypher/config/node.py

@@ -1,4 +1,5 @@
 import contextlib
+import json
 import os
 from glob import glob
 from os.path import abspath