Merge pull request #14 from rarimo/reg-request/add-gas-multiplier

Add GasLimitMultiplier

Author: artemskriabin

.gitignore

@@ -4,3 +4,4 @@ config.*.yaml
 docs/node_modules
 docs/web_deploy
 vendor/
+.DS_Store

config.yaml

@@ -5,6 +5,8 @@ network:
   private_key: ""
   vault_address: "https://127.0.0.1:8200"
   vault_mount_path: "secret_data"
+  gas_limit_multiplier: 1.2
+
   whitelist: 
     - 0x123...123
     - 0x123...123

internal/config/network.go

@@ -43,6 +43,7 @@ type RelayerConfig struct {
 	PrivateKey              *ecdsa.PrivateKey
 	WhiteList               whitelist
 	nonce                   uint64
+	GasLimitMultiplier      float64
 
 	mut *sync.Mutex
 }
@@ -59,7 +60,10 @@ func (e *ethereum) RelayerConfig() *RelayerConfig {
 			VaultAddress            string            `fig:"vault_address"`
 			VaultMountPath          string            `fig:"vault_mount_path"`
 			WhiteList               []string          `fig:"whitelist"`
-		}{}
+			GasLimitMultiplier      float64           `fig:"gas_limit_multiplier"`
+		}{
+			GasLimitMultiplier: 1.2,
+		}
 		err := figure.
 			Out(&networkConfig).
 			With(figure.EthereumHooks).
@@ -97,6 +101,7 @@ func (e *ethereum) RelayerConfig() *RelayerConfig {
 
 			result.WhiteList[address] = struct{}{}
 		}
+		result.GasLimitMultiplier = networkConfig.GasLimitMultiplier
 
 		result.mut = &sync.Mutex{}
 		return &result

internal/service/handlers/registration.go

@@ -128,6 +128,7 @@ func confGas(r *http.Request, txd *txData, receiver *common.Address) (err error)
 	if err != nil {
 		return fmt.Errorf("failed to estimate gas: %w", err)
 	}
+	txd.gas = uint64(float64(txd.gas) * RelayerConfig(r).GasLimitMultiplier)
 
 	return nil
 }