From 197096aac7ae8c90b68daafc5900d9218292f15e Mon Sep 17 00:00:00 2001
From: dkniazevych <dkniazevych@hiqinvest.nl>
Date: Mon, 6 Nov 2017 11:02:02 +0100
Subject: [PATCH 1/7] #8: add a customizable transaction id generator

---
 CHANGELOG.md                 |  3 +++
 README.md                    | 30 +++++++++++++++++++++++++++++-
 package.json                 | 11 ++++++++---
 src/index.ts                 | 17 ++++++++++++++---
 src/parser.ts                | 12 ++++++------
 src/tags/transaction-info.ts | 12 +++++-------
 test/cases/abn-amro-1.json   |  2 +-
 test/cases/base-1.json       | 18 +++++++++---------
 test/cases/base-2.json       |  4 ++--
 test/cases/base-3.json       |  4 ++--
 test/cases/ing-1.json        |  6 +++---
 tsconfig.json                |  6 +++++-
 12 files changed, 87 insertions(+), 38 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26d7aac..c528ae3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.6.0
+* **Breaking change**: [new transaction id generator](README.md#readoptions)
+
 ## 0.5.2
 * fix parsing of customer and bank references
 
diff --git a/README.md b/README.md
index 1e32d75..f609c12 100644
--- a/README.md
+++ b/README.md
@@ -7,12 +7,40 @@
 
 > An isomorphic Javascript library for working with [MT940](#related-links) format
 
+> # [Changelog](CHANGELOG.md)
+
 ## Reading
 ### API
-#### read(buffer)
+#### read(buffer, options)
 * `buffer` {Buffer|ArrayBuffer} - income buffer that contains data of mt940 file.
+* `options` {ReadOptions}
 * returns `Promise` with list of [Statement](src/typings.ts#L40).
 
+#### ReadOptions
+* `getTransactionId(transaction, index)` - a custom generator for transaction id. By default it's:
+```js
+/**
+* @description version 0.5.x
+* @param {Transaction} transaction
+* @param {number} index
+* @returns {string}
+*/
+function getTransactionId (transaction, index) {
+    return md5(`${ date }${ transaction.description }${ amount }${ transaction.currency }`);
+}
+
+
+/**
+* @description version 0.6.x+
+* @param {Transaction} transaction
+* @param {number} index
+* @returns {string}
+*/
+function getTransactionId (transaction, index) {
+    return md5(JSON.strinfigy(transaction));
+}
+```
+
 ### Node.js environment
 ````js
 import * as mt940 from 'mt940-js';
diff --git a/package.json b/package.json
index 40c0979..e8212de 100644
--- a/package.json
+++ b/package.json
@@ -1,12 +1,12 @@
 {
   "name": "mt940-js",
-  "version": "0.5.2",
+  "version": "0.6.0",
   "description": "An isomorphic Javascript library for working with MT940 format",
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",
   "devDependencies": {
     "@types/es6-shim": "^0.31.34",
-    "@types/jest": "^20.0.2",
+    "@types/jest": "^21.1.5",
     "@types/node": "^6.0.78",
     "coveralls": "^2.13.1",
     "jest": "^20.0.4",
@@ -36,7 +36,12 @@
     "collectCoverage": true,
     "coverageDirectory": "test/coverage",
     "coverageReporters": [
-      "lcov"
+      "lcov",
+      "html"
+    ],
+    "collectCoverageFrom": [
+      "src/*.{ts,tsx}",
+      "src/**/*.{ts,tsx}"
     ],
     "scriptPreprocessor": "<rootDir>/jest/preprocessor.js",
     "setupTestFrameworkScriptFile": "<rootDir>/jest/config.js",
diff --git a/src/index.ts b/src/index.ts
index 201e2ad..4d18e89 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,3 +1,4 @@
+import md5 from './utils/md5';
 import * as parser from './parser';
 
 const invalidInputMessage: string = 'invalid input';
@@ -7,7 +8,7 @@ export interface Tag {
     open?: (state: State) => any;
     readContent?: (state: State, symbolCode: number) => any;
     readToken: (state: State) => number;
-    close?: (state: State) => any;
+    close?: (state: State, options?: ReadOptions) => any;
     [key: string]: any;
 }
 
@@ -57,7 +58,11 @@ export interface Statement {
     transactions: Transaction[];
 }
 
-export function read (input: ArrayBuffer|Buffer): Promise<Statement[]> {
+export interface ReadOptions {
+    getTransactionId (transaction: Transaction, index: number): string;
+}
+
+export function read (input: ArrayBuffer|Buffer, options?: ReadOptions): Promise<Statement[]> {
     let data: Uint8Array|Buffer;
 
     if (typeof Buffer !== 'undefined' && input instanceof Buffer) {
@@ -68,5 +73,11 @@ export function read (input: ArrayBuffer|Buffer): Promise<Statement[]> {
         return Promise.reject(new Error(invalidInputMessage)) as any;
     }
 
-    return parser.read(data).catch(() => Promise.reject(new Error(invalidInputMessage)));
+    return parser.read(data, Object.assign({}, options, {
+        getTransactionId (transaction: Transaction) {
+            return md5(JSON.stringify(transaction));
+        }
+    })).catch(() => {
+        return Promise.reject(new Error(invalidInputMessage));
+    });
 }
\ No newline at end of file
diff --git a/src/parser.ts b/src/parser.ts
index 24aa3fa..d138ca8 100644
--- a/src/parser.ts
+++ b/src/parser.ts
@@ -3,7 +3,7 @@ import {
     newLineSymbolCode,
     returnSymbolCode
 } from './tokens';
-import {Tag, State, Statement} from './index';
+import {Tag, State, Statement, ReadOptions} from './index';
 import transactionReferenceNumber from './tags/transaction-reference-number';
 import relatedReferenceNumber from './tags/related-reference-number';
 import accountId from './tags/account-id';
@@ -29,13 +29,13 @@ const tags: Tag[] = [
 ];
 const tagsCount: number = tags.length;
 
-function closeCurrentTag (state: State) {
+function closeCurrentTag (state: State, options: ReadOptions) {
     if (state.tag && state.tag.close) {
-        state.tag.close(state);
+        state.tag.close(state, options);
     }
 }
 
-export function read (data: Uint8Array|Buffer): Promise<Statement[]> {
+export function read (data: Uint8Array|Buffer, options: ReadOptions): Promise<Statement[]> {
     const length: number = data.length;
     const state: State = {
         pos: 0,
@@ -56,7 +56,7 @@ export function read (data: Uint8Array|Buffer): Promise<Statement[]> {
                 const newPos: number = tag.readToken(state);
 
                 if (newPos) {
-                    closeCurrentTag(state);
+                    closeCurrentTag(state, options);
                     state.pos = newPos;
                     state.tagContentStart = newPos;
                     state.tagContentEnd = newPos;
@@ -83,7 +83,7 @@ export function read (data: Uint8Array|Buffer): Promise<Statement[]> {
         state.pos++;
     }
 
-    closeCurrentTag(state);
+    closeCurrentTag(state, options);
 
     return Promise.resolve(state.statements);
 }
\ No newline at end of file
diff --git a/src/tags/transaction-info.ts b/src/tags/transaction-info.ts
index 988ca8d..ac7f28d 100644
--- a/src/tags/transaction-info.ts
+++ b/src/tags/transaction-info.ts
@@ -1,7 +1,6 @@
 import compareArrays from '../utils/compare-arrays';
-import md5 from '../utils/md5';
 import {colonSymbolCode, bigCSymbolCode, dotSymbolCode} from '../tokens';
-import {Tag, State, Statement, Transaction} from '../index';
+import {Tag, State, Statement, Transaction, ReadOptions} from '../index';
 
 const transactionInfoPattern: RegExp = new RegExp([
     '^\\\s*',
@@ -63,8 +62,9 @@ const transactionInfoTag: Tag = {
         });
     },
 
-    close (state: State) {
-        const transaction: Transaction = state.statements[state.statementIndex].transactions[state.transactionIndex];
+    close (state: State, options: ReadOptions) {
+        const statement: Statement = state.statements[state.statementIndex];
+        const transaction: Transaction = statement.transactions[state.transactionIndex];
         const content: string = String.fromCharCode.apply(
             String,
             state.data.slice(state.tagContentStart, state.tagContentEnd)
@@ -114,9 +114,7 @@ const transactionInfoTag: Tag = {
         transaction.amount = parseFloat(amount.replace(commaPattern, dotSymbol));
         transaction.code = code;
         transaction.isExpense = incomeTransactionCodes.indexOf(code) === -1;
-        const date: string = transaction.valueDate || transaction.entryDate;
-
-        transaction.id = md5(`${ date }${ transaction.description }${ amount }${ transaction.currency }`);
+        transaction.id = options.getTransactionId(transaction, state.transactionIndex);
     }
 };
 
diff --git a/test/cases/abn-amro-1.json b/test/cases/abn-amro-1.json
index e65dc57..40c6b1b 100644
--- a/test/cases/abn-amro-1.json
+++ b/test/cases/abn-amro-1.json
@@ -17,7 +17,7 @@
     },
     "transactions": [
       {
-        "id": "61149bfbc36c9228f17dd40856382721",
+        "id": "73428377c7ce19b7e3f072f719435274",
         "code": "N426",
         "fundsCode": "",
         "isCredit": true,
diff --git a/test/cases/base-1.json b/test/cases/base-1.json
index 8e01729..091999f 100644
--- a/test/cases/base-1.json
+++ b/test/cases/base-1.json
@@ -17,7 +17,7 @@
     },
     "transactions": [
       {
-        "id": "c0ed06ccba5f305d5812c7b888b494b2",
+        "id": "d0401c0697e097897df85a4463760d27",
         "code": "S051",
         "fundsCode": "M",
         "isCredit": true,
@@ -31,7 +31,7 @@
         "bankReference": ""
       },
       {
-        "id": "7dc7c2ee72ecef607d11a448753b541a",
+        "id": "23d3b2456afc91c4efd5e389254d6fa8",
         "code": "NCHG",
         "fundsCode": "M",
         "isCredit": true,
@@ -45,7 +45,7 @@
         "bankReference": ""
       },
       {
-        "id": "7dc7c2ee72ecef607d11a448753b541a",
+        "id": "22291c3872e333051c813aa7d34b2816",
         "code": "S051",
         "fundsCode": "M",
         "isCredit": true,
@@ -59,7 +59,7 @@
         "bankReference": ""
       },
       {
-        "id": "7dc7c2ee72ecef607d11a448753b541a",
+        "id": "22291c3872e333051c813aa7d34b2816",
         "code": "S051",
         "fundsCode": "M",
         "isCredit": true,
@@ -73,7 +73,7 @@
         "bankReference": ""
       },
       {
-        "id": "7dc7c2ee72ecef607d11a448753b541a",
+        "id": "22291c3872e333051c813aa7d34b2816",
         "code": "S051",
         "fundsCode": "M",
         "isCredit": true,
@@ -87,7 +87,7 @@
         "bankReference": ""
       },
       {
-        "id": "7dc7c2ee72ecef607d11a448753b541a",
+        "id": "22291c3872e333051c813aa7d34b2816",
         "code": "S051",
         "fundsCode": "M",
         "isCredit": true,
@@ -120,7 +120,7 @@
     },
     "transactions": [
       {
-        "id": "7dc7c2ee72ecef607d11a448753b541a",
+        "id": "22291c3872e333051c813aa7d34b2816",
         "code": "S051",
         "fundsCode": "M",
         "isCredit": true,
@@ -134,7 +134,7 @@
         "bankReference": ""
       },
       {
-        "id": "7dc7c2ee72ecef607d11a448753b541a",
+        "id": "22291c3872e333051c813aa7d34b2816",
         "code": "S051",
         "fundsCode": "M",
         "isCredit": true,
@@ -167,7 +167,7 @@
     },
     "transactions": [
       {
-        "id": "c5734756c18f38e18ec6804d1ef7a19f",
+        "id": "5134c8e053ec660eacba8802475d0fd5",
         "code": "S051",
         "fundsCode": "M",
         "isCredit": false,
diff --git a/test/cases/base-2.json b/test/cases/base-2.json
index fd15106..b778662 100644
--- a/test/cases/base-2.json
+++ b/test/cases/base-2.json
@@ -17,7 +17,7 @@
     },
     "transactions": [
       {
-        "id": "113f6309764949dc34abc481cf6c9cd1",
+        "id": "692af6323ab4123008dc75422bcff774",
         "code": "N310",
         "fundsCode": "",
         "isCredit": false,
@@ -31,7 +31,7 @@
         "bankReference": "B7B27AG0MQ000001"
       },
       {
-        "id": "113f6309764949dc34abc481cf6c9cd1",
+        "id": "a6ce2a581b16d782597709087ccb8c1d",
         "code": "N310",
         "fundsCode": "",
         "isCredit": false,
diff --git a/test/cases/base-3.json b/test/cases/base-3.json
index 78ca3d4..de22b02 100644
--- a/test/cases/base-3.json
+++ b/test/cases/base-3.json
@@ -17,7 +17,7 @@
     },
     "transactions": [
       {
-        "id": "53302f828508c9ff2cba4849c8d7b6d6",
+        "id": "5f8409ba8716dbf402fed70d6ec4e14c",
         "code": "N110",
         "fundsCode": "",
         "isCredit": true,
@@ -58,7 +58,7 @@
         "description": "/TRTP/IDEAL BETALING/IBAN/NL59ABNA0626226163/BIC/ABNANL2AXXX/NAME/WORLDPAY CUSTOMER PAYMENTS/REMI/7510143342 0030001826916174 VISTAPRINT 9ZTV3-34A29-5N6 000291VISTAPRIN",
         "entryDate": "2016-11-21",
         "fundsCode": "",
-        "id": "65e3f648c526acda4d833052365793e1",
+        "id": "117ddb4130bd0613ef9c4ec35a384d13",
         "isCredit": false,
         "isExpense": true,
         "valueDate": "2016-11-21"
diff --git a/test/cases/ing-1.json b/test/cases/ing-1.json
index 16033da..49769fd 100644
--- a/test/cases/ing-1.json
+++ b/test/cases/ing-1.json
@@ -29,7 +29,7 @@
     },
     "transactions": [
       {
-        "id": "57bc42eedd977fe2ba74ae184f021a09",
+        "id": "2b33a41e4439d4207fe6fc77b2928252",
         "code": "N078",
         "fundsCode": "",
         "isCredit": true,
@@ -43,7 +43,7 @@
         "bankReference": ""
       },
       {
-        "id": "bd96d856262c34a287688c02a3268fd9",
+        "id": "1f4d07fd1738faad66ef84eb489b7185",
         "code": "N077",
         "fundsCode": "",
         "isCredit": true,
@@ -57,7 +57,7 @@
         "bankReference": ""
       },
       {
-        "id": "92b2dd5bdbf84325950cb889d14509de",
+        "id": "10afa5eb66016d5052921a24c394c769",
         "code": "N029",
         "fundsCode": "",
         "isCredit": false,
diff --git a/tsconfig.json b/tsconfig.json
index cd8288e..7ecf7e4 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,7 +7,11 @@
     "noImplicitAny": true,
     "noUnusedParameters": true,
     "noUnusedLocals": true,
-    "module": "commonjs"
+    "module": "commonjs",
+    "lib": [
+      "es2017",
+      "dom"
+    ]
   },
   "exclude": [
     "node_modules",

From 6880af79b724e91dac0b7500f4922dfcc97b040a Mon Sep 17 00:00:00 2001
From: dkniazevych <dkniazevych@hiqinvest.nl>
Date: Mon, 6 Nov 2017 11:10:45 +0100
Subject: [PATCH 2/7] #8: add a lock file

---
 npm-shrinkwrap.json | 2677 +++++++++++++++++++++++++++++++++++++++++++
 package.json        |    3 +-
 2 files changed, 2679 insertions(+), 1 deletion(-)
 create mode 100644 npm-shrinkwrap.json

diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
new file mode 100644
index 0000000..68b13ba
--- /dev/null
+++ b/npm-shrinkwrap.json
@@ -0,0 +1,2677 @@
+{
+  "name": "mt940-js",
+  "version": "0.6.0",
+  "dependencies": {
+    "@types/jest": {
+      "version": "21.1.5",
+      "from": "@types/jest@latest",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-21.1.5.tgz",
+      "dev": true
+    },
+    "@types/node": {
+      "version": "6.0.90",
+      "from": "@types/node@>=6.0.78 <7.0.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-6.0.90.tgz",
+      "dev": true
+    },
+    "abab": {
+      "version": "1.0.4",
+      "from": "abab@>=1.0.3 <2.0.0",
+      "resolved": "https://registry.npmjs.org/abab/-/abab-1.0.4.tgz",
+      "dev": true
+    },
+    "abbrev": {
+      "version": "1.0.9",
+      "from": "abbrev@>=1.0.0 <1.1.0",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
+      "dev": true
+    },
+    "acorn": {
+      "version": "4.0.13",
+      "from": "acorn@>=4.0.4 <5.0.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-4.0.13.tgz",
+      "dev": true
+    },
+    "acorn-globals": {
+      "version": "3.1.0",
+      "from": "acorn-globals@>=3.1.0 <4.0.0",
+      "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-3.1.0.tgz",
+      "dev": true
+    },
+    "align-text": {
+      "version": "0.1.4",
+      "from": "align-text@>=0.1.3 <0.2.0",
+      "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
+      "dev": true
+    },
+    "amdefine": {
+      "version": "1.0.1",
+      "from": "amdefine@>=0.0.4",
+      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+      "dev": true
+    },
+    "ansi-escapes": {
+      "version": "1.4.0",
+      "from": "ansi-escapes@>=1.4.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
+      "dev": true
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "from": "ansi-regex@>=2.0.0 <3.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "dev": true
+    },
+    "ansi-styles": {
+      "version": "2.2.1",
+      "from": "ansi-styles@>=2.2.1 <3.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+      "dev": true
+    },
+    "ansicolors": {
+      "version": "0.2.1",
+      "from": "ansicolors@>=0.2.1 <0.3.0",
+      "resolved": "https://registry.npmjs.org/ansicolors/-/ansicolors-0.2.1.tgz",
+      "dev": true
+    },
+    "anymatch": {
+      "version": "1.3.2",
+      "from": "anymatch@>=1.3.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
+      "dev": true
+    },
+    "append-transform": {
+      "version": "0.4.0",
+      "from": "append-transform@>=0.4.0 <0.5.0",
+      "resolved": "https://registry.npmjs.org/append-transform/-/append-transform-0.4.0.tgz",
+      "dev": true
+    },
+    "argparse": {
+      "version": "1.0.9",
+      "from": "argparse@>=1.0.7 <2.0.0",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
+      "dev": true
+    },
+    "arr-diff": {
+      "version": "2.0.0",
+      "from": "arr-diff@>=2.0.0 <3.0.0",
+      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
+      "dev": true
+    },
+    "arr-flatten": {
+      "version": "1.1.0",
+      "from": "arr-flatten@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
+      "dev": true
+    },
+    "array-differ": {
+      "version": "1.0.0",
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+      "resolved": "https://registry.npmjs.org/array-differ/-/array-differ-1.0.0.tgz",
+      "dev": true
+    },
+    "array-equal": {
+      "version": "1.0.0",
+      "from": "array-equal@>=1.0.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/array-equal/-/array-equal-1.0.0.tgz",
+      "dev": true
+    },
+    "array-union": {
+      "version": "1.0.2",
+      "from": "array-union@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
+      "dev": true
+    },
+    "array-uniq": {
+      "version": "1.0.3",
+      "from": "array-uniq@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/array-uniq/-/array-uniq-1.0.3.tgz",
+      "dev": true
+    },
+    "array-unique": {
+      "version": "0.2.1",
+      "from": "array-unique@>=0.2.1 <0.3.0",
+      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.2.1.tgz",
+      "dev": true
+    },
+    "arrify": {
+      "version": "1.0.1",
+      "from": "arrify@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
+      "dev": true
+    },
+    "asn1": {
+      "version": "0.2.3",
+      "from": "asn1@>=0.2.3 <0.3.0",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
+      "dev": true
+    },
+    "assert-plus": {
+      "version": "0.2.0",
+      "from": "assert-plus@>=0.2.0 <0.3.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz",
+      "dev": true
+    },
+    "async": {
+      "version": "2.5.0",
+      "from": "async@>=2.1.4 <3.0.0",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.5.0.tgz",
+      "dev": true
+    },
+    "asynckit": {
+      "version": "0.4.0",
+      "from": "asynckit@>=0.4.0 <0.5.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
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+      "dev": true
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+          "dev": true
+        },
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+          "dev": true
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+          "dev": true
+        }
+      }
+    },
+    "tslint-eslint-rules": {
+      "version": "4.1.1",
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+          "dev": true
+        }
+      }
+    },
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+      "version": "2.12.2",
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+      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.12.2.tgz",
+      "dev": true
+    },
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+    },
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+      "optional": true
+    },
+    "type-check": {
+      "version": "0.3.2",
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+      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
+      "dev": true
+    },
+    "typescript": {
+      "version": "2.6.1",
+      "from": "typescript@latest",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.6.1.tgz",
+      "dev": true
+    },
+    "uglify-js": {
+      "version": "2.8.29",
+      "from": "uglify-js@>=2.6.0 <3.0.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.8.29.tgz",
+      "dev": true,
+      "optional": true,
+      "dependencies": {
+        "yargs": {
+          "version": "3.10.0",
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+          "dev": true,
+          "optional": true
+        }
+      }
+    },
+    "uglify-to-browserify": {
+      "version": "1.0.2",
+      "from": "uglify-to-browserify@>=1.0.0 <1.1.0",
+      "resolved": "https://registry.npmjs.org/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz",
+      "dev": true,
+      "optional": true
+    },
+    "uuid": {
+      "version": "3.1.0",
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+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
+      "dev": true
+    },
+    "validate-npm-package-license": {
+      "version": "3.0.1",
+      "from": "validate-npm-package-license@>=3.0.1 <4.0.0",
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+      "dev": true
+    },
+    "verror": {
+      "version": "1.10.0",
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+      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
+      "dev": true,
+      "dependencies": {
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+          "version": "1.0.0",
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+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+          "dev": true
+        }
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+    },
+    "walker": {
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+      "dev": true
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+      "resolved": "https://registry.npmjs.org/watch/-/watch-0.10.0.tgz",
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+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",
+      "dev": true
+    },
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+      "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.3.tgz",
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+    },
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+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-1.0.0.tgz",
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+    },
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+      "dev": true,
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+      "dev": true
+    },
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+    },
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+      "dev": true
+    },
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+      "from": "xtend@>=4.0.0 <5.0.0",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
+      "dev": true
+    },
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+      "version": "3.2.1",
+      "from": "y18n@>=3.2.1 <4.0.0",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
+      "dev": true
+    },
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+      "version": "7.1.0",
+      "from": "yargs@>=7.0.2 <8.0.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.0.tgz",
+      "dev": true,
+      "dependencies": {
+        "camelcase": {
+          "version": "3.0.0",
+          "from": "camelcase@>=3.0.0 <4.0.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
+          "dev": true
+        },
+        "cliui": {
+          "version": "3.2.0",
+          "from": "cliui@>=3.2.0 <4.0.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-3.2.0.tgz",
+          "dev": true
+        }
+      }
+    },
+    "yargs-parser": {
+      "version": "5.0.0",
+      "from": "yargs-parser@>=5.0.0 <6.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0.tgz",
+      "dev": true,
+      "dependencies": {
+        "camelcase": {
+          "version": "3.0.0",
+          "from": "camelcase@>=3.0.0 <4.0.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
+          "dev": true
+        }
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
index e8212de..44a7409 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,8 @@
     "test": "npm run lint &&./node_modules/.bin/jest --no-cache",
     "coveralls": "npm run test && cat ./test/coverage/lcov.info | node ./node_modules/coveralls/bin/coveralls.js",
     "lint": "./node_modules/.bin/tslint \"src/**/*.ts\" \"test/unit/**/*.ts\"",
-    "build": "npm run lint && rm -rf lib && ./node_modules/.bin/tsc"
+    "build": "npm run lint && rm -rf lib && ./node_modules/.bin/tsc",
+    "lock": "npm shrinkwrap --dev"
   },
   "repository": {
     "type": "git",

From c8e3a9a7cd1a0aad476f64240cc93a0cf3a9e823 Mon Sep 17 00:00:00 2001
From: dkniazevych <dkniazevych@hiqinvest.nl>
Date: Mon, 6 Nov 2017 11:15:37 +0100
Subject: [PATCH 3/7] #8: update Travis CI config

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index d124b0d..7241498 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,4 +2,5 @@ language: node_js
 sudo: false
 node_js:
   - '6.1'
+before_install: npm prune
 script: npm run build
\ No newline at end of file

From 09ea2c429f03a4998667c11796379d38df442bc9 Mon Sep 17 00:00:00 2001
From: dkniazevych <dkniazevych@hiqinvest.nl>
Date: Mon, 6 Nov 2017 11:18:21 +0100
Subject: [PATCH 4/7] #8: update Travis CI config

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 7241498..983fe48 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,5 +2,5 @@ language: node_js
 sudo: false
 node_js:
   - '6.1'
-before_install: npm prune
+before_install: rm -rf ./node_modules
 script: npm run build
\ No newline at end of file

From b116c3d83cab01aa728707f149301581daab8009 Mon Sep 17 00:00:00 2001
From: dkniazevych <dkniazevych@hiqinvest.nl>
Date: Mon, 6 Nov 2017 11:20:10 +0100
Subject: [PATCH 5/7] #8: update Travis CI config, fix dependencies

---
 .travis.yml  | 1 -
 package.json | 1 -
 2 files changed, 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 983fe48..d124b0d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,5 +2,4 @@ language: node_js
 sudo: false
 node_js:
   - '6.1'
-before_install: rm -rf ./node_modules
 script: npm run build
\ No newline at end of file
diff --git a/package.json b/package.json
index 44a7409..a98babe 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,6 @@
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",
   "devDependencies": {
-    "@types/es6-shim": "^0.31.34",
     "@types/jest": "^21.1.5",
     "@types/node": "^6.0.78",
     "coveralls": "^2.13.1",

From 182b938fb6c550862974f3ae4650c2f526c4efad Mon Sep 17 00:00:00 2001
From: dkniazevych <dkniazevych@hiqinvest.nl>
Date: Mon, 6 Nov 2017 11:21:34 +0100
Subject: [PATCH 6/7] #8: update README

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index f609c12..5e1f755 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@
 * `options` {ReadOptions}
 * returns `Promise` with list of [Statement](src/typings.ts#L40).
 
-#### ReadOptions
+##### ReadOptions
 * `getTransactionId(transaction, index)` - a custom generator for transaction id. By default it's:
 ```js
 /**

From 5676f7271834ae5962463639b857cd0f8122eb67 Mon Sep 17 00:00:00 2001
From: dkniazevych <dkniazevych@hiqinvest.nl>
Date: Mon, 6 Nov 2017 11:23:05 +0100
Subject: [PATCH 7/7] #8: extend a default ReadOptions

---
 src/index.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 4d18e89..82b1a90 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -73,11 +73,11 @@ export function read (input: ArrayBuffer|Buffer, options?: ReadOptions): Promise
         return Promise.reject(new Error(invalidInputMessage)) as any;
     }
 
-    return parser.read(data, Object.assign({}, options, {
+    return parser.read(data, Object.assign({
         getTransactionId (transaction: Transaction) {
             return md5(JSON.stringify(transaction));
         }
-    })).catch(() => {
+    }, options)).catch(() => {
         return Promise.reject(new Error(invalidInputMessage));
     });
 }
\ No newline at end of file