fix conflict for rebase

lib/bitcoind-rpc/transactions.js

@@ -46,6 +46,38 @@ class Transactions {
     this.rpcClient = new RpcClient()
   }
 
+  /**
+   * Get the transactions for a given array of txids
+   * @param {string[]} txids - txids of the transaction to be retrieved
+   * @param {boolean} fees - true if fees must be computed, false otherwise
+   * @returns {Promise} return an array of transactions (object[])
+   */
+  async getTransactions(txids, fees) {
+    try {
+      const rpcCalls = txids.map(txid => {
+        return {
+          'method': 'getrawtransaction',
+          'params': [txid, true]
+        }
+      })
+
+      const txs = await this.rpcClient.batch(rpcCalls)
+
+      return await util.seriesCall(txs, async tx => {
+        if (tx.result == null) {
+          Logger.info(`   got null for ${txids[tx.id]}`)
+          return null
+        } else {
+          return this._prepareTxResult(tx.result, fees)
+        }
+      })
+
+    } catch(e) {
+      Logger.error(e, 'Transaction.getTransactions()')
+      return Promise.reject(errors.generic.GEN)
+    }
+  }
+
   /**
    * Get the transaction for a given txid
    * @param {string} txid - txid of the transaction to be retrieved
@@ -61,64 +93,73 @@ class Transactions {
 
     try {
       const tx = await this.rpcClient.getrawtransaction(txid, true)
+      const ret = await this._prepareTxResult(tx)
+      // Store the result in cache
+      if (ret.block && ret.block.hash)
+        this.txCache.set(txid, ret)
+      return ret
+    } catch(e) {
+      Logger.error(e, 'Transaction.getTransaction()')
+      return Promise.reject(errors.generic.GEN)
+    }
+  }
 
-      const ret = {
-        txid: tx.txid,
-        size: tx.size,
-        vsize: tx.vsize,
-        version: tx.version,
-        locktime: tx.locktime,
-        inputs: [],
-        outputs: []
-      }
+  /**
+   * Formats a transaction object returned by the RPC API
+   * @param {object} tx - transaction
+   * @param {boolean} fees - true if fees must be computed, false otherwise
+   * @returns {Promise} return an array of inputs (object[])
+   */
+  async _prepareTxResult(tx, fees) {
+    const ret = {
+      txid: tx.txid,
+      size: tx.size,
+      vsize: tx.vsize,
+      version: tx.version,
+      locktime: tx.locktime,
+      inputs: [],
+      outputs: []
+    }
 
-      if (!ret.vsize)
-        delete ret.vsize
+    if (!ret.vsize)
+      delete ret.vsize
 
-      if (tx.time)
-        ret.created = tx.time
+    if (tx.time)
+      ret.created = tx.time
 
-      // Process block informations
-      if (tx.blockhash && tx.confirmations && tx.blocktime) {
-        ret.block = {
-          height: rpcLatestBlock.height - tx.confirmations + 1,
-          hash: tx.blockhash,
-          time: tx.blocktime
-        }
+    // Process block informations
+    if (tx.blockhash && tx.confirmations && tx.blocktime) {
+      ret.block = {
+        height: rpcLatestBlock.height - tx.confirmations + 1,
+        hash: tx.blockhash,
+        time: tx.blocktime
       }
+    }
 
-      let inAmount = 0
-      let outAmount = 0
-
-      // Process the inputs
-      ret.inputs = await this._getInputs(tx, fees)
-      inAmount = ret.inputs.reduce((prev, cur) => prev + cur.outpoint.value, 0)
-
-      // Process the outputs
-      ret.outputs = await this._getOutputs(tx)
-      outAmount = ret.outputs.reduce((prev, cur) => prev + cur.value, 0)
+    let inAmount = 0
+    let outAmount = 0
 
-      // Process the fees (if needed)
-      if (fees) {
-        ret.fees = inAmount - outAmount
-        if (ret.fees > 0 && ret.size)
-          ret.feerate = Math.round(ret.fees / ret.size)
-        if (ret.fees > 0 && ret.vsize)
-          ret.vfeerate = Math.round(ret.fees / ret.vsize)
-      }
+    // Process the inputs
+    ret.inputs = await this._getInputs(tx, fees)
+    inAmount = ret.inputs.reduce((prev, cur) => prev + cur.outpoint.value, 0)
 
-      // Store in cache
-      if (ret.block && ret.block.hash)
-        this.txCache.set(keyCache, ret)
+    // Process the outputs
+    ret.outputs = await this._getOutputs(tx)
+    outAmount = ret.outputs.reduce((prev, cur) => prev + cur.value, 0)
 
-      return ret
-      
-    } catch(e) {
-      Logger.error(e, 'Transaction.getTransaction()')
-      return Promise.reject(errors.generic.GEN)
+    // Process the fees (if needed)
+    if (fees) {
+      ret.fees = inAmount - outAmount
+      if (ret.fees > 0 && ret.size)
+        ret.feerate = Math.round(ret.fees / ret.size)
+      if (ret.fees > 0 && ret.vsize)
+        ret.vfeerate = Math.round(ret.fees / ret.vsize)
     }
+
+    return ret
   }
 
+
   /**
    * Extract information about the inputs of a transaction
    * @param {object} tx - transaction
@@ -180,7 +221,6 @@ class Transactions {
   /**
    * Extract information about the outputs of a transaction
    * @param {object} tx - transaction
-   * @param {boolean} fees - true if fees must be computed, false otherwise
    * @returns {Promise} return an array of outputs (object[])
    */
   async _getOutputs(tx) {