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Nasdaq Data Link provides a modern and efficient method of delivery for real-time exchange data and other financial information. This repository provides a Java SDK for developing applications using Nasdaq Data Link's real-time data.

www.nasdaq.com/solutions/data-link-api

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Nasdaq Data Link - Streaming API Java SDK

Nasdaq Data Link provides a modern and efficient method of delivery for realtime exchange data and other financial information. Data is made available through a suite of APIs, allowing for effortless integration of data from disparate sources, and a dramatic reduction in time to market for customer-designed applications. The API is highly scalable, and robust enough to support the delivery of real-time exchange data. Read our latest case study: Nasdaq Data Link Provides Real-Time Data with Efficiency and Scale to Fintech Newcomer Unhedged

This repository provides an SDK for developing applications to access Nasdaq Data Link's Streaming API. While the SDK is open source, connecting to the API does require credentials, which are provided by Nasdaq during an on-boarding process.

Products Currently Available

Equities

The Nasdaq Stock Market

Nasdaq BX

Nasdaq PSX

Nasdaq Canada

OTC Markets

Indexes & ETPs

Options

Nasdaq U.S. Derivatives

Mutual Funds

News

Table of Contents

Getting Started

Pre-requisites

  • OpenJDK 8
  • Maven 3

Get the SDK

Clone the repository: git clone https://github.com/Nasdaq/CloudDataService

  • Run mvn install to build the library, test, javadoc and source jars and install to your local Maven repository.
  • Run mvn javadoc:javadoc to build the documentation.

Stream configuration

=======

Replace example stream properties in the file kafka-config.properties (https://github.com/Nasdaq/CloudDataService/blob/master/ncdssdk-client/src/main/resources/kafka-config.properties) with provided values during on-boarding.

Required kafka configuration

bootstrap.servers={streams_endpoint_url}:9094

For optional consumer configurations see: https://kafka.apache.org/0100/javadoc/org/apache/kafka/clients/consumer/ConsumerConfig.html

For example:

request.timeout.ms=20000
retry.backoff.ms=500
max.poll.records=2000

=======

Client Authentication configuration

Replace example client authentication properties in the file clientAuthentication-config.properties (https://github.com/Nasdaq/CloudDataService/blob/master/ncdssdk-client/src/main/resources/clientAuthentication-config.properties) with valid credentials provided during on-boarding.

oauth.token.endpoint.uri=https://{auth_endpoint_url}/auth/realms/pro-realm/protocol/openid-connect/token
oauth.client.id=client
oauth.client.secret=client-secret
oauth.username.claim=preferred_username

Logging Configuration

To enable debug logging, edit the file (https://github.com/Nasdaq/CloudDataService/blob/master/ncdssdk-client/src/main/resources/log4j.xml) and change line 18 to the logging level desired.

For example, to enable debug logging to a file:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration debug="false" xmlns:log4j='http://jakarta.apache.org/log4j/'>

    <appender name="FILE" class="org.apache.log4j.FileAppender">

        <param name="file" value="logs/client/log.out"/>
        <param name="immediateFlush" value="true"/>
        <param name="threshold" value="debug"/>
        <param name="append" value="false"/>

        <layout class="org.apache.log4j.PatternLayout">
            <param name="conversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n"/>
        </layout>
    </appender>

    <root>
        <level value="DEBUG"/>
        <appender-ref ref="FILE"/>
    </root>

</log4j:configuration>

Create NCDS Session Client

Run mvn clean install command in ncdssdk-client project (https://github.com/Nasdaq/CloudDataService/tree/master/ncdssdk-client). It will generate the jar file in target file. How to run the jar:

-opt -- Provide the operation you want to perform \n" +
  "        * TOP - View the top nnn records in the Topic/Stream\n"+
  "        * SCHEMA - Display the Schema for the topic\n"+
  "        * METRICS - Display the Metrics for the topic\n"+
  "        * TOPICS - List of streams available on Nasdaq Cloud DataService\n"+
  "        * GETMSG - Get one example message for the\n"+
  "        * CONTSTREAM   - Retrieve continuous stream  \n"+
  "        * FILTERSTREAM  - Retrieve continuous stream filtered by symbols and/or msgtypes \n"+
  "        * NEWS - Get stream for Pro Global news stream\n"+
  "        * HELP - help \n"+
"-topic -- Provide topic for selected option         --- REQUIRED for TOP,SCHEMA,METRICS,GETMSG,CONTSTREAM,FILTERSTREAM  and NEWS \n"+
"-symbols -- Provide symbols comma separated list    --- OPTIONAL for FILTERSTREAM"+  
"-msgtypes -- Provide msgtypes comma separated list  --- OPTIONAL for FILTERSTREAM"+  
"-authprops -- Provide Client Properties File path   --- For using different set of Client Authentication Properties \n"+
"-kafkaprops -- Provide Kafka Properties File path   --- For using different set of Kafka Properties \n"+
"-n -- Provide number of messages to retrieve        --- REQUIRED for TOP \n"+
"-msgName -- Provide name of message based on schema --- REQUIRED for GETMSG \n"+
"-timestamp -- Provide timestamp in milliseconds     --- OPTIONAL for TOP, CONTSTREAM and FILTERSTREAM\n"

Few examples to use jar:

Get first 100 records for given stream

java -jar ncdssdk-client.jar -opt TOP -n 100 -topic GIDS

Get all available streams

java -jar ncdssdk-client.jar -opt TOPICS

Using the SDK

Getting list of data stream available

List all available data stream for the user.

// Example1.java
NCDSClient ncdsClient = new NCDSClient();
String[] topics = ncdsClient.ListTopicsForTheClient();
System.out.println("Entitled DataSet Topics:" );
for (String topicEntry : topics) {
    System.out.println(topicEntry);
}

Example output:

List of streams available on Nasdaq Cloud DataService:
GIDS
NLSUTP
NLSCTA

Getting schema for the stream

This methods returns the schema for the stream in Apache Avro format (https://avro.apache.org/docs/current/spec.html).

// Example2.java
NCDSClient ncdsClient = new NCDSClient();
String topic = "GIDS";
String schema = ncdsClient.getSchemaForTheTopic(topic);
System.out.println(schema);

Example output:

[ {
    "type" : "record",
    "name" : "SeqCommoditySummary",
    "namespace" : "com.nasdaq.marketdata.sequencer.applications.datafeed.gids20feed.messaging",
    "fields" : [ {
      "name" : "SoupPartition",
      "type" : "int"
    }, {
      "name" : "SoupSequence",
      "type" : "long"
    }, {
      "name" : "msgType",
      "type" : "string"
    }, {
      "name" : "timeStamp",
      "type" : "int"
    }, {
      "name" : "fpType",
      "type" : "string"
    }, {
      "name" : "brand",
      "type" : "string"
    }, {
      "name" : "series",
      "type" : "string"
    }, {
      "name" : "instrumentID",
      "type" : "string"
    }, {
      "name" : "summaryType",
      "type" : "string"
    }, {
      "name" : "sodValue",
      "type" : "long"
    }, {
      "name" : "high",
      "type" : "long"
    },
}........
....]

Get first 10 messages of the stream

This returns the first 10 available messages of the stream.

// Example2.java
NCDSClient ncdsClient = new NCDSClient();
String topic="NLSCTA";
ConsumerRecords<String, GenericRecord> records = ncdsClient.topMessages(topic);
for (ConsumerRecord<String, GenericRecord> record : records) {
    System.out.println("key:" + record.key());
    System.out.println("value:" + record.value().toString());
}

Example output:

key:1
value:{"SoupPartition": 0, "SoupSequence": 1, "trackingID": 7238625218217, "msgType": "S", "event": "O"}
key:2
value:{"SoupPartition": 0, "SoupSequence": 2, "trackingID": 11231714567789, "msgType": "R", "symbol": "A       ", "marketClass": "N", "fsi": " ", "roundLotSize": 100, "roundLotOnly": "N", "issueClass": "C", "issueSubtype": "Z ", "authenticity": "P", "shortThreshold": "N", "ipo": " ", "luldTier": "1", "etf": "N", "etfFactor": 0, "inverseETF": "N", "compositeId": "BBG000C2V3D6"}
key:3
value:{"SoupPartition": 0, "SoupSequence": 3, "trackingID": 11231714567789, "msgType": "G", "symbol": "A       ", "securityClass": "N", "adjClosingPrice": 766400}
key:4
value:{"SoupPartition": 0, "SoupSequence": 4, "trackingID": 11231714628669, "msgType": "R", "symbol": "AA      ", "marketClass": "N", "fsi": " ", "roundLotSize": 100, "roundLotOnly": "N", "issueClass": "C", "issueSubtype": "Z ", "authenticity": "P", "shortThreshold": "N", "ipo": " ", "luldTier": "1", "etf": "N", "etfFactor": 1, "inverseETF": "N", "compositeId": "BBG00B3T3HD3"}
key:5
value:{"SoupPartition": 0, "SoupSequence": 5, "trackingID": 11231714628669, "msgType": "G", "symbol": "AA      ", "securityClass": "N", "adjClosingPrice": 225300}
key:6
value:{"SoupPartition": 0, "SoupSequence": 6, "trackingID": 11231714675278, "msgType": "R", "symbol": "AAAU    ", "marketClass": "P", "fsi": " ", "roundLotSize": 100, "roundLotOnly": "N", "issueClass": "Q", "issueSubtype": "I ", "authenticity": "P", "shortThreshold": "N", "ipo": " ", "luldTier": "2", "etf": "Y", "etfFactor": 1, "inverseETF": "N", "compositeId": "BBG00LPXX872"}
key:7
value:{"SoupPartition": 0, "SoupSequence": 7, "trackingID": 11231714675278, "msgType": "G", "symbol": "AAAU    ", "securityClass": "P", "adjClosingPrice": 145600}
key:8
value:{"SoupPartition": 0, "SoupSequence": 8, "trackingID": 11231714764805, "msgType": "R", "symbol": "AADR    ", "marketClass": "P", "fsi": " ", "roundLotSize": 100, "roundLotOnly": "N", "issueClass": "Q", "issueSubtype": "I ", "authenticity": "P", "shortThreshold": "N", "ipo": " ", "luldTier": "2", "etf": "Y", "etfFactor": 0, "inverseETF": "N", "compositeId": "BBG000BDYRW6"}
key:9
value:{"SoupPartition": 0, "SoupSequence": 9, "trackingID": 11231714764805, "msgType": "G", "symbol": "AADR    ", "securityClass": "P", "adjClosingPrice": 499000}
key:10
value:{"SoupPartition": 0, "SoupSequence": 10, "trackingID": 11231714853049, "msgType": "R", "symbol": "AAMC    ", "marketClass": "A", "fsi": " ", "roundLotSize": 100, "roundLotOnly": "N", "issueClass": "C", "issueSubtype": "Z ", "authenticity": "P", "shortThreshold": "N", "ipo": " ", "luldTier": "2", "etf": "N", "etfFactor": 0, "inverseETF": "N", "compositeId": "BBG003PNL136"}

Get first 10 messages of the stream from given timestamp

This returns the first 10 available messages of the stream from given timestamp in milliseconds since the UNIX epoch.

// Example3.java
NCDSClient ncdsClient = new NCDSClient();
String topic="NLSCTA";
Long timestamp = 1590084445610L; // This is timestamp in millseconds from UNIX epoch. (https://currentmillis.com/)
ConsumerRecords<String, GenericRecord> records = ncdsClient.topMessages(topic, timestamp);
for (ConsumerRecord<String, GenericRecord> record : records) {
    System.out.println("key:" + record.key());
    System.out.println("value:" + record.value().toString());
}

Example output:

Offset: 105834100
Top 10 Records for the Topic:NLSCTA
key:9362630
value :{"SoupPartition": 0, "SoupSequence": 9362630, "trackingID": 50845551492208, "msgType": "T", "marketCenter": "L", "symbol": "SIVR    ", "securityClass": "P", "controlNumber": "0000A2MLOB", "price": 164797, "size": 1, "saleCondition": "@  o", "cosolidatedVolume": 520174}
key:9362631
value :{"SoupPartition": 0, "SoupSequence": 9362631, "trackingID": 50845557908136, "msgType": "T", "marketCenter": "Q", "symbol": "TJX     ", "securityClass": "N", "controlNumber": "   8358213", "price": 540300, "size": 100, "saleCondition": "@   ", "cosolidatedVolume": 16278768}
key:9362632
value :{"SoupPartition": 0, "SoupSequence": 9362632, "trackingID": 50845565203932, "msgType": "T", "marketCenter": "L", "symbol": "CMI     ", "securityClass": "N", "controlNumber": "0000A2MLOC", "price": 1579900, "size": 100, "saleCondition": "@   ", "cosolidatedVolume": 568622}
key:9362633
value :{"SoupPartition": 0, "SoupSequence": 9362633, "trackingID": 50845565791061, "msgType": "T", "marketCenter": "L", "symbol": "UTI     ", "securityClass": "N", "controlNumber": "0000A2MLOD", "price": 70150, "size": 64, "saleCondition": "@  o", "cosolidatedVolume": 151359}
key:9362634
value :{"SoupPartition": 0, "SoupSequence": 9362634, "trackingID": 50845566628604, "msgType": "T", "marketCenter": "L", "symbol": "UFS     ", "securityClass": "N", "controlNumber": "0000A2MLOE", "price": 203660, "size": 24, "saleCondition": "@  o", "cosolidatedVolume": 664962}
key:9362635
value :{"SoupPartition": 0, "SoupSequence": 9362635, "trackingID": 50845569154140, "msgType": "T", "marketCenter": "L", "symbol": "KR      ", "securityClass": "N", "controlNumber": "0000A2MLOF", "price": 320350, "size": 100, "saleCondition": "@   ", "cosolidatedVolume": 4054473}
key:9362636
value :{"SoupPartition": 0, "SoupSequence": 9362636, "trackingID": 50845577944984, "msgType": "T", "marketCenter": "L", "symbol": "PAGP    ", "securityClass": "N", "controlNumber": "0000A2MLOG", "price": 98350, "size": 100, "saleCondition": "@   ", "cosolidatedVolume": 1557084}
key:9362637
value :{"SoupPartition": 0, "SoupSequence": 9362637, "trackingID": 50845588007117, "msgType": "T", "marketCenter": "L", "symbol": "LUV     ", "securityClass": "N", "controlNumber": "0000A2MLOH", "price": 297413, "size": 4, "saleCondition": "@  o", "cosolidatedVolume": 16791899}
key:9362638
value :{"SoupPartition": 0, "SoupSequence": 9362638, "trackingID": 50845596356365, "msgType": "T", "marketCenter": "L", "symbol": "M       ", "securityClass": "N", "controlNumber": "0000A2MLOI", "price": 54000, "size": 10, "saleCondition": "@  o", "cosolidatedVolume": 39273663}
key:9362639
value :{"SoupPartition": 0, "SoupSequence": 9362639, "trackingID": 50845600594567, "msgType": "T", "marketCenter": "L", "symbol": "TTM     ", "securityClass": "N", "controlNumber": "0000A2MLOJ", "price": 56000, "size": 400, "saleCondition": "@   ", "cosolidatedVolume": 1293244}

Get example message from stream

Print message to the console for given message name.

NCDSClient ncdsClient = new NCDSClient();
String topic="GIDS"
ncdsClient.getSampleMessages(topic, "SeqIndexDirectory");

Example output:

{"SoupPartition": 0, "SoupSequence": 193, "msgType": "R", "timeStamp": 224140137, "instrumentID": "NQJP3700LMCAD     ", "disseminationFlag": "Y", "fpType": "I", "brand": "NQ", "series": "NQG", "strategy": "SEC", "assetType": "EQ", "marketCapSize": "X", "currency": "CAD", "geography": "JP  ", "settlementType": " ", "calculationMethod": "PR ", "state": "A", "indexUsage": "L", "schedule": "ASI", "frequency": "ODCL", "numberOfIssueParticipation": 23, "baseValue": 100000000000000, "baseDate": 20140111, "instrumentName": "NASDAQ Japan Psnl & Hhld Goods Lg Md Cap CAD"}

Get Continuous stream

NCDSClient ncdsClient = new NCDSClient();
String topic="GIDS"
Consumer consumer = ncdsClient.NCDSKafkaConsumer(topic);
while (true) {
    ConsumerRecords<String, GenericRecord> records = consumer.poll(Duration.ofMinutes(Integer.parseInt("1")));
    if (records.count() == 0) {
        System.out.println("No Records Found for the Topic:" + topic);
    }
    for (ConsumerRecord<String, GenericRecord> record : records) {
        System.out.println("value :" + record.value().toString());
    }
}

Get News stream

NCDSClient ncdsClient = new NCDSClient();
String topic="NEWS-PRO-GLOBAL"
Consumer consumer = ncdsClient.NCDSNewsKafkaConsumer(topic);
while (true) {
    ConsumerRecords<String, GenericRecord> records = consumer.poll(Duration.ofMinutes(Integer.parseInt("1")));
    if (records.count() == 0) {
        System.out.println("No Records Found for the News");
    }
    for (ConsumerRecord<String, GenericRecord> record : records) {
        System.out.println("News :" + News.newsBuilder(record.value()).toString());
    }
}

Example output:

   News :ReleaseTime: 2020/04/03 14:40:00
   TransmissionID: A2136726
   RevisionID: 0
   Retract: FALSE
   StoryType:
   TechnicalStory: FALSE
   metaDataNode:
   STOK.MN
   EARN.MN
   USUS.MN
   NOAM.MN
   INBY.MN
   INSL.MN
   FOR4.MN
   EECH.MN
   
   HeadLine: {Headlines}
   Body:
   {Body}
   Tickers: {tickers}
   CopyRight: Copyright © 2020 MT Newswires, All Rights reserved. Data provided by UpTick Data Technologies.
   ISIN: null
   ArticleImage: null
   -----------------------------------------------------------------------------------------------

Example syntax to run the Client Jar based on this SDK

  1. To list of streams available on Nasdaq Cloud DataService

java -jar ncdssdk-client.jar -opt TOPICS

  1. To display the schema for the given topic

java -jar ncdssdk-client.jar -opt SCHEMA -topic NLSUTP

  1. To dump top n records from the given topic

java -jar ncdssdk-client.jar -opt TOP -n 10 -topic NLSUTP

  1. To use client based specific authorization file instead of using from the resources of client code base

java -jar ncdssdk-client.jar -opt TOP -n 10 -topic NLSUTP -authprops clntauth.properties

  1. To use the specific kafka properties instead of using the kafka properties from the resources of the client base code

java -jar ncdssdk-client.jar -opt TOP -n 10 -topic NLSUTP -kafkaprops kafkaprops.properties

  1. To use the specific client based authorization file and specific kafka properties file

java -jar ncdssdk-client.jar -opt TOP -n 10 -topic NLSUTP -authprops clntauth.properties -kafkaprops kafkaprops.properties

  1. To display a specific message type

java -jar ncdssdk-client.jar -opt GETMSG -topic UTPBIN-UF30 -msgName SeqTradeLong

  1. To dump top n records from the given topic from given timestamp in milliseconds since the UNIX epoch

java -jar ncdssdk-client.jar -opt TOP -n 10 -topic NLSUTP -timestamp 1590084445610

  1. To get filtered stream by symbols or/and message-types

java -jar ncdssdk-client.jar -opt FILTERSTREAM -topic NLSUTP -symbols AAPL,NDAQ -msgtypes SeqTradeReportMessage

  1. To get all messages for given type messagtype

java -jar ncdssdk-client.jar -opt GETALLMSGS -topic NLSUTP -msgName SeqTradeReportMessage

Documentation

An addition to the example application, there is extra documentation at the package and class level within the JavaDocs, which are located in project https://github.com/Nasdaq/CloudDataService/tree/master/ncds-sdk/docs

If you make an update, you can run mvn javadocs:javadocs to update documents.

Docker

Docker images are already configured to run the SDK. View the instructions (https://github.com/Nasdaq/CloudDataService/blob/master/docker/README.md)

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

Code and documentation released under the Apache License, Version 2.0

About

Nasdaq Data Link provides a modern and efficient method of delivery for real-time exchange data and other financial information. This repository provides a Java SDK for developing applications using Nasdaq Data Link's real-time data.

www.nasdaq.com/solutions/data-link-api

Topics

streaming news sdk options rest realtime restapi market-data index psx financial-data nasdaq exchange-data bx low-cost ncds nasdaq-canada

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