bridge relay triggers mints via API (#4322)

updates the 'service:bridge:relay' command to invoke the 'bridge/send' API
endpoint to trigger minting tokens on the destination chain

calls 'bridge/send' only once per Iron Fish block to try to process blocks
atomically

adds 'sender' to each note in the response of 'chain/getTransactionStream' RPC
so that we can pass the sender address to the bridge API for validation

ironfish-cli/src/commands/service/bridge/relay.ts

@@ -125,16 +125,25 @@ export default class BridgeRelay extends IronfishCommand {
   async commit(api: WebApi, response: GetTransactionStreamResponse): Promise<void> {
     Assert.isNotUndefined(response)
 
+    const sends = []
+
     const transactions = response.transactions
 
     for (const transaction of transactions) {
       for (const note of transaction.notes) {
-        this.log(`Processing deposit ${note.memo}, from transaction ${transaction.hash}`)
-        // TODO: get Eth deposit address from API
-        // TODO: call Eth bridge contract to mint
+        this.log(`Received deposit ${note.memo} in transaction ${transaction.hash}`)
+        sends.push({
+          id: note.memo,
+          amount: note.value,
+          asset: note.assetId,
+          source_address: note.sender,
+          source_transaction: transaction.hash,
+        })
       }
     }
 
+    await api.sendBridgeDeposits(sends)
+
     await api.setBridgeHead(response.block.hash)
   }
 }

ironfish/src/webApi.ts

@@ -203,6 +203,20 @@ export class WebApi {
     await axios.post(`${this.host}/bridge/head`, { head }, options)
   }
 
+  async sendBridgeDeposits(
+    sends: {
+      id: string
+      amount: string
+      asset: string
+      source_address: string
+      source_transaction: string
+    }[],
+  ): Promise<void> {
+    this.requireToken()
+
+    await axios.post(`${this.host}/bridge/send`, { sends }, this.options())
+  }
+
   options(headers: Record<string, string> = {}): AxiosRequestConfig {
     return {
       headers: {