Add network config endpoint (#2016)

tools/walletextension/common/constants.go

@@ -24,6 +24,7 @@ const (
 	PathRevoke                    = "/revoke/"
 	PathHealth                    = "/health/"
 	PathNetworkHealth             = "/network-health/"
+	PathNetworkConfig             = "/network-config/"
 	WSProtocol                    = "ws://"
 	HTTPProtocol                  = "http://"
 	EncryptedTokenQueryParameter  = "token"

tools/walletextension/httpapi/routes.go

@@ -58,6 +58,10 @@ func NewHTTPRoutes(walletExt *rpcapi.Services) []node.Route {
 			Name: common.APIVersion1 + common.PathVersion,
 			Func: httpHandler(walletExt, versionRequestHandler),
 		},
+		{
+			Name: common.APIVersion1 + common.PathNetworkConfig,
+			Func: httpHandler(walletExt, networkConfigRequestHandler),
+		},
 	}
 }
 
@@ -317,6 +321,57 @@ func networkHealthRequestHandler(walletExt *rpcapi.Services, userConn UserConn)
 	}
 }
 
+func networkConfigRequestHandler(walletExt *rpcapi.Services, userConn UserConn) {
+	// read the request
+	_, err := userConn.ReadRequest()
+	if err != nil {
+		walletExt.Logger().Error("error reading request", log.ErrKey, err)
+		return
+	}
+
+	// Call the RPC method to get the network configuration
+	networkConfig, err := walletExt.GetTenNetworkConfig()
+	if err != nil {
+		walletExt.Logger().Error("error fetching network config", log.ErrKey, err)
+	}
+
+	// Define a struct to represent the response
+	type NetworkConfigResponse struct {
+		ManagementContractAddress string            `json:"ManagementContractAddress"`
+		L1StartHash               string            `json:"L1StartHash"`
+		MessageBusAddress         string            `json:"MessageBusAddress"`
+		L2MessageBusAddress       string            `json:"L2MessageBusAddress"`
+		ImportantContracts        map[string]string `json:"ImportantContracts"`
+	}
+
+	// Convert the TenNetworkInfo fields to strings
+	importantContracts := make(map[string]string)
+	for name, address := range networkConfig.ImportantContracts {
+		importantContracts[name] = address.Hex()
+	}
+
+	networkConfigResponse := NetworkConfigResponse{
+		ManagementContractAddress: networkConfig.ManagementContractAddress.Hex(),
+		L1StartHash:               networkConfig.L1StartHash.Hex(),
+		MessageBusAddress:         networkConfig.MessageBusAddress.Hex(),
+		L2MessageBusAddress:       networkConfig.L2MessageBusAddress.Hex(),
+		ImportantContracts:        importantContracts,
+	}
+
+	// Marshal the response into JSON format
+	data, err := json.Marshal(networkConfigResponse)
+	if err != nil {
+		walletExt.Logger().Error("error marshaling response", log.ErrKey, err)
+		return
+	}
+
+	// Write the response back to the user
+	err = userConn.WriteResponse(data)
+	if err != nil {
+		walletExt.Logger().Error("error writing success response", log.ErrKey, err)
+	}
+}
+
 // Handles request to /version endpoint.
 func versionRequestHandler(walletExt *rpcapi.Services, userConn UserConn) {
 	// read the request

tools/walletextension/rpcapi/wallet_extension.go

@@ -280,6 +280,14 @@ func (w *Services) GetTenNodeHealthStatus() (bool, error) {
 	return *res, err
 }
 
+func (w *Services) GetTenNetworkConfig() (tencommon.TenNetworkInfo, error) {
+	res, err := withPlainRPCConnection[tencommon.TenNetworkInfo](context.Background(), w, func(client *gethrpc.Client) (*tencommon.TenNetworkInfo, error) {
+		res, err := obsclient.NewObsClient(client).GetConfig()
+		return res, err
+	})
+	return *res, err
+}
+
 func (w *Services) GenerateUserMessageToSign(encryptionToken []byte, formatsSlice []string) (string, error) {
 	// Check if the formats are valid
 	for _, format := range formatsSlice {