solution: JSON mapping for Blob related fields

etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/BlockJson.java

@@ -171,6 +171,16 @@ public class BlockJson<T extends TransactionRefJson> implements Serializable {
 
     private List<WithdrawalJson> withdrawals;
 
+    @JsonDeserialize(using = HexLongDeserializer.class)
+    @JsonSerialize(using = HexLongSerializer.class)
+    private Long blobGasUsed;
+
+    @JsonDeserialize(using = HexLongDeserializer.class)
+    @JsonSerialize(using = HexLongSerializer.class)
+    private Long excessBlobGas;
+
+    private Hex32 parentBeaconBlockRoot;
+
     public Long getNumber() {
         return number;
     }
@@ -375,6 +385,30 @@ public void setWithdrawals(List<WithdrawalJson> withdrawals) {
         this.withdrawals = withdrawals;
     }
 
+    public Long getBlobGasUsed() {
+        return blobGasUsed;
+    }
+
+    public void setBlobGasUsed(Long blobGasUsed) {
+        this.blobGasUsed = blobGasUsed;
+    }
+
+    public Long getExcessBlobGas() {
+        return excessBlobGas;
+    }
+
+    public void setExcessBlobGas(Long excessBlobGas) {
+        this.excessBlobGas = excessBlobGas;
+    }
+
+    public Hex32 getParentBeaconBlockRoot() {
+        return parentBeaconBlockRoot;
+    }
+
+    public void setParentBeaconBlockRoot(Hex32 parentBeaconBlockRoot) {
+        this.parentBeaconBlockRoot = parentBeaconBlockRoot;
+    }
+
     /**
      * If this instance is empty or contains only references, then return as is. Otherwise
      * returns a copy of the BlockJson with transactions fields replaced with id references

etherjar-rpc-json/src/main/java/io/emeraldpay/etherjar/rpc/json/TransactionJson.java

@@ -132,6 +132,10 @@ public class TransactionJson extends TransactionRefJson implements TransactionRe
 
     private List<Access> accessList;
 
+    private Wei maxFeePerBlobGas;
+
+    private List<Hex32> blobVersionedHashes;
+
     public Long getNonce() {
         return nonce;
     }
@@ -280,6 +284,22 @@ public void setAccessList(List<Access> accessList) {
         this.accessList = accessList;
     }
 
+    public Wei getMaxFeePerBlobGas() {
+        return maxFeePerBlobGas;
+    }
+
+    public void setMaxFeePerBlobGas(Wei maxFeePerBlobGas) {
+        this.maxFeePerBlobGas = maxFeePerBlobGas;
+    }
+
+    public List<Hex32> getBlobVersionedHashes() {
+        return blobVersionedHashes;
+    }
+
+    public void setBlobVersionedHashes(List<Hex32> blobVersionedHashes) {
+        this.blobVersionedHashes = blobVersionedHashes;
+    }
+
     public void addAccess(Access access) {
         if (this.accessList == null) {
             this.accessList = new ArrayList<>();

etherjar-rpc-json/src/test/groovy/io/emeraldpay/etherjar/rpc/json/BlockJsonSpec.groovy

@@ -4,6 +4,7 @@ import com.fasterxml.jackson.databind.ObjectMapper
 import io.emeraldpay.etherjar.domain.BlockHash
 import io.emeraldpay.etherjar.domain.TransactionId
 import io.emeraldpay.etherjar.domain.Wei
+import io.emeraldpay.etherjar.hex.Hex32
 import io.emeraldpay.etherjar.rpc.JacksonRpcConverter
 import spock.lang.Specification
 
@@ -386,4 +387,37 @@ class BlockJsonSpec extends Specification {
         act.hash.toHex() == '0xa0437cab40119e21bc92d1ce5be52c89c64fa3b914489d51b4fe209a33ed31a5'
         act.transactions == null
     }
+
+    def "Parse with blobs info"() {
+        InputStream json = BlockJsonSpec.classLoader.getResourceAsStream("block/block-19443068.json")
+
+        when:
+        def act = jacksonRpcConverter.objectMapper.readValue(json, BlockJson)
+
+        then:
+        act instanceof BlockJson
+        act.hash.toHex() == '0x4d9557d1933a02fb780063b4c35c0cd9fb590014f851f50641befa034dbdc7e4'
+        act.blobGasUsed == 0xc0000
+        act.excessBlobGas == 0x60000
+        act.parentBeaconBlockRoot.toHex() == "0x7c132a0e0eef72627f2af7c994e8c3cf27c5e6d296473124fb270023db9cf81d"
+    }
+
+    def "Parse with blobs info and transactions"() {
+        InputStream json = BlockJsonSpec.classLoader.getResourceAsStream("block/block-19443105-full.json")
+
+        when:
+        BlockJson<TransactionJson> act = jacksonRpcConverter.objectMapper.readValue(json, BlockJson)
+
+        then:
+        act instanceof BlockJson
+        act.hash.toHex() == '0x52806b8fab72317f97413323cc739de2cd2afc5915298a24beed5d184d798d4b'
+        act.blobGasUsed == 0x60000
+        act.excessBlobGas == 0x0
+        with((TransactionJson)act.transactions.find { it.hash == TransactionId.from("0x109332e227bb505e5731fcbe231dc8d9c0136c14300cd34e40097abf72c51105") }) {
+            maxFeePerBlobGas == Wei.fromHex("0x22ecb25c00")
+            blobVersionedHashes == [
+                Hex32.from("0x01ebcede241d2473b6b1a6fa08f0a281858bc8901f742a39ff74d371e2f2664f")
+            ]
+        }
+    }
 }