api returns allocator request params (#95)

* api returns allocator request params

* Apply suggestions from code review

---------

Co-authored-by: Julien Genestoux <[email protected]>

Author: clemsos

src/api/requests/withdrawals/v1.ts

@@ -14,6 +14,33 @@ import { externalError } from "../../../common/error";
 import { logger } from "../../../common/logger";
 import { RequestHandlerService } from "../../../services/request-handler";
 
+const SubmitWithdrawalRequestParamsSchema = Type.Object({
+  chainId: Type.String({
+    description: "The chain id of the allocator",
+  }),
+  depository: Type.String({
+    description: "The depository address of the allocator",
+  }),
+  currency: Type.String({
+    description: "The currency to withdraw",
+  }),
+  amount: Type.String({
+    description: "The amount to withdraw",
+  }),
+  spender: Type.String({
+    description: "The address of the spender",
+  }),
+  receiver: Type.String({
+    description: "The address of the receiver on the depository chain",
+  }),
+  data: Type.String({
+    description: "The data to include in the withdrawal request",
+  }),
+  nonce: Type.String({
+    description: "The nonce to include in the withdrawal request",
+  }),
+});
+
 const Schema = {
   body: Type.Object({
     mode: Type.Optional(
@@ -39,6 +66,7 @@ const Schema = {
       description:
         "Signature attesting the owner authorized this particular withdrawal request",
     }),
+    submitWithdrawalRequestParams: Type.Optional(SubmitWithdrawalRequestParamsSchema),
     additionalData: Type.Optional(
       Type.Object(
         {

src/services/request-handler/index.ts

@@ -699,6 +699,7 @@ export class RequestHandlerService {
     return {
       id,
       encodedData,
+      submitWithdrawalRequestParams: payloadParams,
       signature,
       signer:
         request.mode === "onchain"