update: zkverifier version, verifying proof by decoded eth addr

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/go-chi/chi v4.1.2+incompatible
 	github.com/go-ozzo/ozzo-validation/v4 v4.3.0
 	github.com/iden3/go-rapidsnark/types v0.0.3
-	github.com/rarimo/zkverifier-kit v0.2.2-rc.2
+	github.com/rarimo/zkverifier-kit v0.2.2-rc.3
 	github.com/rubenv/sql-migrate v1.6.1
 	gitlab.com/distributed_lab/ape v1.7.1
 	gitlab.com/distributed_lab/dig v0.0.0-20230207152643-c44f80a4294c

go.sum

@@ -2088,6 +2088,8 @@ github.com/rarimo/zkverifier-kit v0.2.2-rc.1 h1:IHf+Ctl/ilHxK37r6oJmhxNUz/tTWB6i
 github.com/rarimo/zkverifier-kit v0.2.2-rc.1/go.mod h1:3YDg5dTkDRr4IdfaDHGYetopd6gS/2SuwSeseYTWwNw=
 github.com/rarimo/zkverifier-kit v0.2.2-rc.2 h1:jjdbYH33yzsb0NHGm9TXkG9yKVBYX3GrX8XIc/Z2rAk=
 github.com/rarimo/zkverifier-kit v0.2.2-rc.2/go.mod h1:3YDg5dTkDRr4IdfaDHGYetopd6gS/2SuwSeseYTWwNw=
+github.com/rarimo/zkverifier-kit v0.2.2-rc.3 h1:QarWLZxDpng8FeNZ6LxO+0RBEB88N9fqnCFpC0MgQBE=
+github.com/rarimo/zkverifier-kit v0.2.2-rc.3/go.mod h1:3YDg5dTkDRr4IdfaDHGYetopd6gS/2SuwSeseYTWwNw=
 github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 h1:N/ElC8H3+5XpJzTSTfLsJV/mx9Q9g7kxmchpfZyxgzM=
 github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/regen-network/protobuf v1.3.3-alpha.regen.1 h1:OHEc+q5iIAXpqiqFKeLpu5NwTIkVXUs48vFMwzqpqY4=

internal/service/handlers/create_airdrop.go

@@ -4,12 +4,14 @@ import (
 	"errors"
 	"net/http"
 
+	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/rarimo/evm-airdrop-svc/internal/data"
 	"github.com/rarimo/evm-airdrop-svc/internal/service/requests"
 	zk "github.com/rarimo/zkverifier-kit"
 	"github.com/rarimo/zkverifier-kit/identity"
 	"gitlab.com/distributed_lab/ape"
 	"gitlab.com/distributed_lab/ape/problems"
+	"gitlab.com/distributed_lab/logan/v3"
 )
 
 // Full list of the OpenSSL signature algorithms and hash-functions is provided here:
@@ -38,7 +40,16 @@ func CreateAirdrop(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	err = Verifier(r).VerifyProof(req.Data.Attributes.ZkProof, zk.WithEthereumAddress(req.Data.Attributes.Address))
+	decodedAddress, err := hexutil.Decode(req.Data.Attributes.Address)
+	if err != nil {
+		Log(r).WithError(err).WithFields(logan.F{
+			"address": req.Data.Attributes.Address,
+		}).Error("Failed to decode hex ethereum address")
+		ape.RenderErr(w, problems.InternalError())
+		return
+	}
+
+	err = Verifier(r).VerifyProof(req.Data.Attributes.ZkProof, zk.WithEventData(decodedAddress))
 	if err != nil {
 		if errors.Is(err, identity.ErrContractCall) {
 			Log(r).WithError(err).Error("Failed to verify proof")