Merge pull request #239 from harmony-one/internal_txs_fallback

internal transactions fallback to rpc when older than 34000000

src/api/client.ts

@@ -16,6 +16,7 @@ import {
 } from "./client.interface";
 import { ApiCache } from "./ApiCache";
 import { get4byteSignatureByHex } from "./3rdPartyApi";
+import { eth_traceTransaction } from './rpc'
 // import { ClientCache } from "./clientCache";
 
 // const clientCache = new ClientCache({
@@ -66,7 +67,35 @@ export function getStakingTransactionByField(params: [number, "hash", string]) {
   ) as Promise<RPCStakingTransactionHarmony>;
 }
 
-export function getInternalTransactionsByField(params: any[]) {
+export function getInternalTransactionsByField(params: any[], blockNumber?: string) {
+  // fallback to rpc as we don't keep old records older than 34000000 any more in postgres
+  if (!blockNumber || +blockNumber < 34000000) {
+    const queryType = params[1]
+    if (queryType !== 'transaction_hash') {
+      console.error('use only transaction hash to get internal transactions')
+      return [] as InternalTransaction[]
+    }
+
+    const txHash = params[2]
+    // todo note check error field may not work properly
+    return eth_traceTransaction(txHash).then(txs => {
+      const mapTxs = txs.map((tx: any, i: number) => ({
+        type: tx.action.type || tx.type,
+        value: tx.value,
+        input: tx.action.input,
+        output: tx.result.output,
+        transactionHash: tx.transactionHash,
+        gasUsed: tx.result.gasUsed,
+        index: i,
+        to: tx.action.to,
+        from: tx.action.from,
+        error: tx.result.error,
+        gas: tx.action.gas
+      }))
+      return mapTxs as InternalTransaction[]
+    })
+  }
+
   return transport("getInternalTransactionsByField", params) as Promise<
     InternalTransaction[]
   >;

src/api/rpc.ts

@@ -90,6 +90,24 @@ const defaultGetHistoryParams = {
   order: RequestOrder.DESC
 }
 
+export const eth_traceTransaction = (hash: string) => {
+  return rpcAdapter<any>(API_URL, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      jsonrpc: "2.0",
+      method: "trace_transaction",
+      id: 1,
+      params: [hash],
+    }),
+  }).then(data => {
+    if (data.error) {
+      throw new Error(data.error.message)
+    }
+    return data.result
+  });
+}
+
 export const hmyv2_getTransactionsHistory = (params: IGetTxsHistoryParams[]) => {
   return rpcAdapter<TRPCResponse<{ transactions: RPCTransactionHarmony[] }>>(API_URL, {
     method: "POST",

src/pages/TransactionPage/index.tsx

@@ -93,7 +93,7 @@ export const TransactionPage = () => {
           trxInputSignature = await getTxInputSignature(trx)
         }
       }
-      
+
       setTx((trx || {}) as RPCTransactionHarmony);
       setInputSignature(trxInputSignature)
     };
@@ -110,7 +110,10 @@ export const TransactionPage = () => {
             0,
             "transaction_hash",
             tx.hash,
-          ]);
+          ],
+          // need to track fallback
+          tx.blockNumber
+        );
           const methodSignatures = await Promise.all(
             txs.map((tx) => {
               return tx.input && tx.input.length > 10