added metadata in request and change docs

docs/spec/components/schemas/RegistrationRequest.yaml

@@ -0,0 +1,7 @@
+type: object
+x-go-is-request: true
+required:
+  - data
+properties:
+  data:
+    $ref: '#/components/schemas/RegistrationRequestData'

docs/spec/components/schemas/RegistrationRequestData.yaml

@@ -0,0 +1,20 @@
+type: object
+required:
+  - tx_data
+  - no_send
+properties:
+  meta:
+    type: object
+    description: "Metadata if it is required"
+    example: {"source": "web", "user_id": 123}
+  tx_data:
+    type: string
+  no_send:
+    type: bool
+    description: Flag indicates whether transaction should be sent on-chain
+    example: true
+  destination:
+    type: string
+    example: "0xC0B09085Fa2ad3A8BbF96494B8d5cd10702FE20d"
+    description: Address of registration smart contract
+

docs/spec/paths/integrations@registration-relayer@v1@register.yaml

@@ -7,25 +7,7 @@ post:
     content:
       application/json:
         schema:
-          type: object
-          required:
-            - data
-          properties:
-            data:
-              type: object
-              required:
-                - tx_data
-              properties:
-                tx_data:
-                  type: string
-                no_send:
-                  type: bool
-                  description: Flag indicates whether transaction should be sent on-chain
-                  example: true
-                destination:
-                  type: string
-                  example: "0xC0B09085Fa2ad3A8BbF96494B8d5cd10702FE20d"
-                  description: Address of registration smart contract
+          $ref: '#/components/schemas/RegistrationRequest'
   responses:
     '200':
       description: Success

internal/service/handlers/registration.go

@@ -34,11 +34,15 @@ func Registration(w http.ResponseWriter, r *http.Request) {
 		ape.RenderErr(w, problems.BadRequest(err)...)
 		return
 	}
-
-	log := Log(r).WithFields(logan.F{
+	logF := logan.F{
 		"user-agent": r.Header.Get("User-Agent"),
 		"calldata":   req.Data.TxData,
-	})
+	}
+	if req.Data.Meta != nil {
+		logF = logF.Merge(*req.Data.Meta)
+	}
+
+	log := Log(r).WithFields(logF)
 	log.Debug("registration request")
 
 	// `RelayerConfig(r).RegistrationAddress` is default value for target contract

internal/service/requests/registration.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	validation "github.com/go-ozzo/ozzo-validation/v4"
+	"github.com/rarimo/registration-relayer/resources"
 	"gitlab.com/distributed_lab/logan/v3/errors"
 )
 
@@ -15,17 +16,7 @@ var (
 	addressRegexp  = regexp.MustCompile("^0x[0-9a-fA-F]{40}")
 )
 
-type RegistrationRequestData struct {
-	TxData      string  `json:"tx_data"`
-	NoSend      bool    `json:"no_send"`
-	Destination *string `json:"destination,omitempty"`
-}
-
-type RegistrationRequest struct {
-	Data RegistrationRequestData `json:"data"`
-}
-
-func NewRegistrationRequest(r *http.Request) (req RegistrationRequest, err error) {
+func NewRegistrationRequest(r *http.Request) (req resources.RegistrationRequest, err error) {
 	err = json.NewDecoder(r.Body).Decode(&req)
 	if err != nil {
 		return req, errors.Wrap(err, "failed to unmarshal")

resources/model_registration_request.go

@@ -0,0 +1,9 @@
+/*
+ * GENERATED. Do not modify. Your changes might be overwritten!
+ */
+
+package resources
+
+type RegistrationRequest struct {
+	Data RegistrationRequestData `json:"data"`
+}

resources/model_registration_request_data.go

@@ -0,0 +1,15 @@
+/*
+ * GENERATED. Do not modify. Your changes might be overwritten!
+ */
+
+package resources
+
+type RegistrationRequestData struct {
+	// Address of registration smart contract
+	Destination *string `json:"destination,omitempty"`
+	// Metadata if it is required
+	Meta *map[string]interface{} `json:"meta,omitempty"`
+	// Flag indicates whether transaction should be sent on-chain
+	NoSend bool   `json:"no_send"`
+	TxData string `json:"tx_data"`
+}