Add chain/addTransaction for signed transaction

ironfish/src/network/peerNetwork.ts

@@ -408,7 +408,7 @@ export class PeerNetwork {
    * The full transaction will be sent to a subset of sqrt(num_peers)
    * and the rest of the peers will receive the transaction hash
    */
-  private broadcastTransaction(transaction: Transaction): void {
+  public broadcastTransaction(transaction: Transaction): void {
     const hash = transaction.hash()
 
     const peersToSendToArray = ArrayUtils.shuffle([

ironfish/src/rpc/routes/chain/addTransaction.ts

@@ -0,0 +1,55 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+import * as yup from 'yup'
+import { Transaction } from '../../../primitives'
+import { ApiNamespace, router } from '../router'
+
+export type ChainAddTransactionRequest = {
+  transaction: string
+}
+
+export type ChainAddTransactionResponse = {
+  success: boolean
+  reason?: string
+}
+
+export const ChainAddTransactionRequestSchema: yup.ObjectSchema<ChainAddTransactionRequest> =
+  yup
+    .object({
+      transaction: yup.string().defined(),
+    })
+    .defined()
+
+export const ChainAddTransactionResponseSchema: yup.ObjectSchema<ChainAddTransactionResponse> =
+  yup
+    .object({
+      success: yup.boolean().defined(),
+      reason: yup.string().optional(),
+    })
+    .defined()
+
+router.register<typeof ChainAddTransactionRequestSchema, ChainAddTransactionResponse>(
+  `${ApiNamespace.chain}/addTransaction`,
+  ChainAddTransactionRequestSchema,
+  async (request, node): Promise<void> => {
+    const buffer = Buffer.from(request.data.transaction, 'hex')
+    const transaction = new Transaction(buffer)
+
+    // Some verification
+
+    const firstVerify = await node.chain.verifier.verifyNewTransaction(transaction)
+    if (!firstVerify.valid) {
+      request.end({ success: false, reason: JSON.stringify(firstVerify.reason) })
+    }
+
+    const secondVerify = node.memPool.acceptTransaction(transaction)
+    if (!secondVerify) {
+      request.end({ success: false, reason: 'Mempool rejected' })
+    }
+
+    node.peerNetwork.broadcastTransaction(transaction)
+
+    request.end({ success: true })
+  },
+)

ironfish/src/rpc/routes/chain/index.ts

@@ -17,3 +17,4 @@ export * from './getConsensusParameters'
 export * from './getAsset'
 export * from './getNetworkInfo'
 export * from './getNoteWitness'
+export * from './addTransaction'