chore: code style fixes

Author: jaymansfield

jot-examples/src/main/java/com/method5/jot/examples/query/QueryFeeInfoExample.java

@@ -1,13 +1,10 @@
 package com.method5.jot.examples.query;
 
-import com.method5.jot.extrinsic.call.Call;
 import com.method5.jot.rpc.PolkadotWs;
 import com.method5.jot.signing.SigningProvider;
 import com.method5.jot.util.ExampleBase;
-import com.method5.jot.util.HexUtil;
 import com.method5.jot.wallet.Wallet;
 import com.method5.jot.examples.Config;
-import com.method5.jot.extrinsic.ExtrinsicSigner;
 import com.method5.jot.query.model.FeeInfo;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -26,17 +23,11 @@ public static void main(String[] args) throws Exception {
     private static void execute(PolkadotWs api, SigningProvider signingProvider) throws Exception {
         logger.info("Query Fee Info Example");
 
-        // Build call for System.remark
-        Call call = api.tx().system().remark("test");
-
-        // Create and sign extrinsic
-        byte[] extrinsic = ExtrinsicSigner.signAndBuild(api,
-                signingProvider,
-                call.callData()
-        );
+        // Build and sign call for System.remark
+        String extrinsic = api.tx().system().remark("test").sign(signingProvider);
 
         // Query fee info for extrinsic
-        FeeInfo feeInfo = api.query().payment().queryInfo("0x"+HexUtil.bytesToHex(extrinsic));
+        FeeInfo feeInfo = api.query().payment().queryInfo(extrinsic);
 
         logger.info("Weight (ref_time): {}", feeInfo.getWeight().refTime());
         logger.info("Weight (proof_size): {}", feeInfo.getWeight().proofSize());

jot-examples/src/main/java/com/method5/jot/examples/query/QueryFinalizedHeadExample.java

@@ -20,6 +20,7 @@ private static void execute(PolkadotWs api) throws Exception {
         logger.info("Query Finalized Head Example");
 
         byte[] blockHash = api.query().chain().finalizedHead();
+
         logger.info("Finalized head hash: {}", HexUtil.bytesToHex(blockHash));
     }
 }

jot-examples/src/main/java/com/method5/jot/examples/query/QueryMetadataExample.java

@@ -20,6 +20,7 @@ private static void execute(PolkadotWs api) throws Exception {
         logger.info("Query Metadata Example");
 
         byte[] metadata = api.query().state().metadata();
+
         logger.info("Metadata: {}", HexUtil.bytesToHex(metadata));
 
         // See ParsingMetadataExample.java for parsing

jot-examples/src/main/java/com/method5/jot/examples/query/QueryRuntimeVersionExample.java

@@ -20,6 +20,7 @@ private static void execute(PolkadotWs api) throws Exception {
         logger.info("Query Runtime Version Example");
 
         RuntimeVersion runtimeVersion = api.query().state().runtimeVersion();
+
         logger.info("Spec name: {}", runtimeVersion.getSpecName());
         logger.info("Impl name: {}", runtimeVersion.getImplName());
         logger.info("Transaction version: {}", runtimeVersion.getTransactionVersion());

jot/src/main/java/com/method5/jot/query/PaymentRpc.java

@@ -23,6 +23,7 @@ public FeeInfo queryInfo(String extrinsic) throws Exception {
     }
 
     public FeeInfo queryInfo(String extrinsic, String at) throws Exception {
+        if(extrinsic != null && !extrinsic.startsWith("0x")) extrinsic = "0x" + extrinsic;
         ArrayNode params = mapper.createArrayNode();
         params.add(extrinsic);
         if (at != null) {