Express transferRate as a float

src/api/common/constants.js

@@ -33,7 +33,7 @@ const AccountFields = {
   WalletSize: {name: 'walletSize', defaults: 0},
   MessageKey: {name: 'messageKey'},
   Domain: {name: 'domain', encoding: 'hex'},
-  TransferRate: {name: 'transferRate', defaults: 0},
+  TransferRate: {name: 'transferRate', defaults: 0, shift: 9},
   Signers: {name: 'signers'}
 };
 

src/api/common/schemas/get-settings.json

@@ -27,7 +27,12 @@
     "walletSize": {"type": ["integer", "null"]},
     "messageKey": {"type": "string"},
     "domain": {"type": "string"},
-    "transferRate": {"type": ["integer", "null"]},
+    "transferRate": {
+      "oneOf": [
+        {"type": "null"},
+        {"type": "number", "minimum": 1, "maximum": 4.294967295}
+      ]
+    },
     "signers": {"type": "string"},
     "regularKey": {"$ref": "address"}
   },

src/api/ledger/parse/fields.js

@@ -1,11 +1,15 @@
 /* @flow */
 'use strict';
+const BigNumber = require('bignumber.js');
 const AccountFields = require('./utils').constants.AccountFields;
 
 function parseField(info, value) {
   if (info.encoding === 'hex' && !info.length) {
     return new Buffer(value, 'hex').toString('ascii');
   }
+  if (info.shift) {
+    return (new BigNumber(value)).shift(-info.shift).toNumber();
+  }
   return value;
 }
 

src/api/transaction/settings.js

@@ -1,7 +1,7 @@
 /* @flow */
 'use strict';
-const _ = require('lodash');
 const assert = require('assert');
+const BigNumber = require('bignumber.js');
 const utils = require('./utils');
 const validate = utils.common.validate;
 const AccountFlagIndices = utils.common.constants.AccountFlagIndices;
@@ -64,7 +64,7 @@ function setTransactionFields(transaction, input) {
  */
 
 function convertTransferRate(transferRate) {
-  return _.isNumber(transferRate) ? transferRate * 1e9 : transferRate;
+  return (new BigNumber(transferRate)).shift(9).toNumber();
 }
 
 function createSettingsTransaction(account, settings) {

test/fixtures/api/responses/get-settings.json

@@ -4,5 +4,5 @@
   "emailHash": "23463B99B62A72F26ED677CC556C44E8",
   "walletLocator": "00000000000000000000000000000000000000000000000000000000DEADBEEF",
   "domain": "example.com",
-  "transferRate": 1002000000
+  "transferRate": 1.002
 }