More on RPC configuration

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 0.22.3
+
+- Fix: `eth_defi.chain.has_graphql_support` to support `MultiProviderWeb3`
+
 # 0.22.2
 
 - Add: `eth_defi.provider.multi_provider.create_multi_provider_web3`: An easy way to configure a Web3 instance with multiple providers

docs/source/tutorials/multi-rpc-configuration.rst

@@ -29,11 +29,17 @@ Instead of giving a single RPC endpoint URL, you give a list URLs.
 
 Example:
 
-.. code-block::
+.. code-block:: python
 
     # Uses MEVblocker.io to broadcast transactions
     # and two separate nodes for reading blockchain data
     config = "mev+https://rpc.mevblocker.io https://myethereumnode1.example.com https://fallback.example.com"
     web3 = create_multi_provider_web3(config)
 
+If you want to keep using a single RPC endpoint, you do not need to do any changes:
+
+.. code-block:: python
+
+    # Pasing a single RPC endpoint URL is ok
+    web3 = create_multi_provider_web3("https://polygon-rpc.com")
 

eth_defi/chain.py

@@ -179,9 +179,11 @@ def has_graphql_support(provider: BaseProvider) -> bool:
         {"data":{"block":{"number":16328259}}}
     """
 
+    # See BaseNamedProvider
     if hasattr(provider, "call_endpoint_uri"):
         base_url = provider.call_endpoint_uri
     elif hasattr(provider, "endpoint_uri"):
+        # HTTPProvider
         base_url = provider.endpoint_uri
     else:
         raise AssertionError(f"Do not know how to extract endpoint URI: {provider}")

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "web3-ethereum-defi"
-version = "0.22.2"
+version = "0.22.3"
 description = "Python library for Uniswap, Aave, ChainLink, Enzyme and other protocols on BNB Chain, Polygon, Ethereum and other blockchains"
 authors = ["Mikko Ohtamaa <[email protected]>"]
 license = "MIT"