Geth and Parity variant configs for EthereumJSONRPC

apps/ethereum_jsonrpc/config/config.exs

@@ -3,6 +3,10 @@
 use Mix.Config
 
 config :ethereum_jsonrpc,
-  http: [recv_timeout: 60_000, timeout: 60_000, hackney: [pool: :ethereum_jsonrpc]],
+  http: [recv_timeout: 60_000, timeout: 60_000, hackney: [pool: :ethereum_jsonrpc]]
-  trace_url: "https://sokol-trace.poa.network",
+
-  url: "https://sokol.poa.network"
+variant = System.get_env("ETHEREUM_JSONRPC_VARIANT") || "parity"
+
+# Import variant specific config. This must remain at the bottom
+# of this file so it overrides the configuration defined above.
+import_config "#{variant}.exs"

apps/ethereum_jsonrpc/config/geth.exs

@@ -0,0 +1,5 @@
+use Mix.Config
+
+config :ethereum_jsonrpc,
+  trace_url: "https://mainnet.infura.io/mew",
+  url: "https://mainnet.infura.io/mew"

apps/ethereum_jsonrpc/config/parity.exs

@@ -0,0 +1,5 @@
+use Mix.Config
+
+config :ethereum_jsonrpc,
+  trace_url: "https://sokol-trace.poa.network",
+  url: "https://sokol.poa.network"