Metadata-Version: 2.1
Name: deephaven-ib
Version: 0.2.9
Summary: An Interactive Brokers integration for Deephaven
Home-page: https://github.com/deephaven-examples/deephaven-ib
Author: David R. (Chip) Kent IV
Author-email: chipkent@deephaven.io
Project-URL: Deephaven, https://deephaven.io
Project-URL: Deephaven GitHub, https://github.com/deephaven/deephaven-core
Project-URL: GitHub Issues, https://github.com/deephaven-examples/deephaven-ib/issues
Classifier: Programming Language :: Python :: 3
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Operating System :: OS Independent
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: End Users/Desktop
Classifier: Intended Audience :: Financial and Insurance Industry
Classifier: Topic :: Database :: Database Engines/Servers
Classifier: Topic :: Office/Business :: Financial :: Investment
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Requires-Python: >=3.6
Description-Content-Type: text/markdown
License-File: LICENSE

# deephaven-ib

![Deephaven Data Labs Logo](docs/assets/Deephaven-Logo-Wordmark-Community-OnLight.png)

![Build CI](https://github.com/deephaven-examples/deephaven-ib/actions/workflows/build-and-publish.yml/badge.svg?branch=main)

An [Interactive Brokers](https://www.interactivebrokers.com/) integration for [Deephaven](https://deephaven.io).

[Interactive Brokers](https://www.interactivebrokers.com/) is a very popular brokerage in the quantitative finance world,
with about $200B of customer equity.  Quants and hedge funds often choose [Interactive Brokers](https://www.interactivebrokers.com/) because of its low trading costs and API that facilitates automated trading.  With low minimum account balances, 
it is also an attractive choice for individual investors.

[Deephaven](https://deephaven.io) is the real-time query engine that is the backbone for the quantitative trading of the 
world's largest hedge funds, banks, and exchanges.  [Deephaven](https://deephaven.io) makes working with real-time data easy and
facilitates very concise and easy-to-read code.  With [Deephaven](https://deephaven.io), quants can create new models 
and get them into production quickly, traders can monitor the market and their portfolios, and 
managers can monitor risk. 

[deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) combines the low-cost trading of 
[Interactive Brokers](https://www.interactivebrokers.com/) with the analytical power and ease of use of 
[Deephaven Community Core](https://github.com/deephaven/deephaven-core) to yield an open, quantitative 
trading platform.  Basically, it provides an open platform for building quantitative trading strategies and
custom analytics.  You can build something simple, like a portfolio monitor, or something complex, like a 
fully-automated, multi-strategy quantitative hedge fund.

[deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) supports trading essentially all common
exchange traded products.  These include:
* Stocks
* Mutual Funds
* Options
* Futures
* Futures Options
* Indexes
* Bonds
* Foreign Exchange (Forex or FX)
* Cryptocurrency
* Contracts for Differences (CFDs)
* Warrants
* Commodities

![Overview Image](docs/assets/overview.png)

**WARNING: Automated trading can go horribly wrong very quickly.  Verify your code on a paper trading account before 
unleashing trading on an account where money can be lost.  If you think this can not happen to you, read
[The Rise and Fall of Knight Capital](https://medium.com/dataseries/the-rise-and-fall-of-knight-capital-buy-high-sell-low-rinse-and-repeat-ae17fae780f6).
The [Setup](#setup) section shows configurations to prevent accidental trade submission.**

For more details, see:
* [Interactive Brokers](https://www.interactivebrokers.com/)
* [Deephaven](https://deephaven.io)
* [Deephaven Community Core](https://github.com/deephaven/deephaven-core)

For help with [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib):
* [deephaven-ib Docs](https://deephaven-examples.github.io/deephaven-ib/)
* [Gitter: A relaxed chat room about all things Deephaven](https://gitter.im/deephaven/deephaven)
* [Deephaven Community Slack](https://join.slack.com/t/deephavencommunity/shared_invite/zt-11x3hiufp-DmOMWDAvXv_pNDUlVkagLQ)

For Deephaven how-to guides, see:
* [Deephaven Tutorial](https://deephaven.io/core/docs/tutorials/overview/) 
* [Deephaven Coummunity Core Documentation](https://deephaven.io/core/docs/).

For help with [Deephaven](https://deephaven.io):
* [Gitter: A relaxed chat room about all things Deephaven](https://gitter.im/deephaven/deephaven)
* [Deephaven Community Slack](https://join.slack.com/t/deephavencommunity/shared_invite/zt-11x3hiufp-DmOMWDAvXv_pNDUlVkagLQ)
* [Deephaven Community Core Discussions](https://github.com/deephaven/deephaven-core/discussions)


# Data Available in Deephaven

The [Deephaven](https://deephaven.io) query engine is built around the concept of tables, which are similar to Pandas dataframes.  
Unlike Pandas dataframes, [Deephaven](https://deephaven.io) tables can dynamically update as new data is streamed in.
As input tables change, the [Deephaven](https://deephaven.io) query engine ensures that all queries, no matter how complex, 
are kept up-to-date. 

Once data is converted to a [Deephaven](https://deephaven.io) table, it can be used in queries with any other 
[Deephaven](https://deephaven.io) tables.

## IB TWS data

Data available from [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php) can be accessed 
as [Deephaven](https://deephaven.io) tables by using [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib).
As data streams in, the tables and queries using them will automatically update.

These tables include:

* General
    * `errors`: an error log
    * `requests`: requests to IB
* Contracts
    * `contract_details`: details describing contracts of interest.  Automatically populated.
    * `contracts_matching`: contracts matching query strings provided to `request_contracts_matching`.
    * `market_rules`: market rules indicating the price increment a contract can trade in.  Automatically populated.
    * `short_rates`: interest rates for shorting securities.  Automatically populated if `download_short_rates=True`.
* Accounts
    * `accounts_managed`: accounts managed by the TWS session login.  Automatically populated.
    * `accounts_family_codes`: account family.  Automatically populated.
    * `accounts_groups`: account groups.  Automatically populated.
    * `accounts_allocation_profiles`: allocation profiles for accounts.  Automatically populated.
    * `accounts_value`: account values.  Automatically populated.
    * `accounts_overview`: overview of account details.  Automatically populated.
    * `accounts_summary`: account summary.  Automatically populated.
    * `accounts_positions`: account positions.  Automatically populated.
    * `accounts_pnl`: account PNL.  Automatically populated.
* News
    * `news_providers`: currently subscribed news sources.  Automatically populated.
    * `news_bulletins`: news bulletins.  Automatically populated.
    * `news_articles`: the content of news articles requested via `request_news_article`.
    * `news_historical`: historical news headlines requested via `request_news_historical`.
* Market Data
    * `ticks_price`: real-time tick market data of price values requested via `request_market_data`.
    * `ticks_size`: real-time tick market data of size values requested via `request_market_data`.
    * `ticks_string`: real-time tick market data of string values requested via `request_market_data`.
    * `ticks_efp`: real-time tick market data of exchange for physical (EFP) values requested via `request_market_data`.
    * `ticks_generic`: real-time tick market data of generic floating point values requested via `request_market_data`.
    * `ticks_option_computation`: real-time tick market data of option computations requested via `request_market_data`.
    * `ticks_trade`: real-time tick market data of trade prices requested via `request_tick_data_historical` or `request_tick_data_realtime`.
    * `ticks_bid_ask`: real-time tick market data of bid and ask prices requested via `request_tick_data_historical` or `request_tick_data_realtime`.
    * `ticks_mid_point`: real-time tick market data of mid-point prices requested via `request_tick_data_historical` or `request_tick_data_realtime`.
    * `bars_historical`: historical price bars requested via `request_bars_historical`.
    * `bars_realtime`: real-time price bars requested via `request_bars_realtime`.
* Order Management System (OMS)
    * `orders_submitted`: submitted orders **FOR THE THE CLIENT'S ID**.  A client ID of 0 contains manually entered orders.  Automatically populated.
    * `orders_status`: order statuses.  Automatically populated.
    * `orders_completed`: completed orders.  Automatically populated.
    * `orders_exec_details`: order execution details.  Automatically populated.
    * `orders_exec_commission_report`: order execution commission report.  Automatically populated.

Most tables include a `ReceiveTime` column.  This column indicates the time the data was received by [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib). It does not represent the time the event occurred.

## Your data

You may want to combine data from other sources with your IB data.  [Deephaven](https://deephaven.io) can load data from:
* [CSV](https://deephaven.io/core/docs/how-to-guides/csv-import/)
* [Parquet](https://deephaven.io/core/docs/how-to-guides/parquet-flat/) 
* [Kafka](https://deephaven.io/core/docs/how-to-guides/kafka-topics/).  
See the [Deephaven Documentation](https://deephaven.io/core/docs) for details.

Files placed in the `./docker/data/` directory are visible in the Docker container at `/data/`.  
See [Access your file system with Docker data volumes](https://deephaven.io/core/docs/conceptual/docker-data-volumes/) for details.

# Run deephaven-ib

Follow these steps to run a [Deephaven](https://deephaven.io) plus [Interactive Brokers](https://interactivebrokers.com) system. 

`<deephaven_version>` is the version of [Deephaven](https://deephaven.io) to run (e.g., `0.11.0`).  A list of available versions 
can be found on the [Deephaven Releases GitHub page](https://github.com/deephaven/deephaven-core/releases).  
Version `0.11.0` or higher must be used.

**Windows users need to run the commands in WSL.**

## Setup
To setup and configure the system:

1) Follow the [Deephaven Quick Start Guide](https://deephaven.io/core/docs/tutorials/quickstart/) to get [Deephaven](https://deephaven.io) running.  
1) Follow the [TWS Installation Instructions](https://www.interactivebrokers.com/en/trading/tws.php) to get [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php) running.
1) Launch [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php).
1) In [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php), click on the gear in the
upper right corner.  ![](docs/assets/config-gear.png)  
  In `API->Settings`, make sure:

    * "Enable ActiveX and Socket Clients" is selected.
    * "Allow connections from localhost only" is not selected.
    * "Read-Only API" is selected if you want to prevent trade submission from [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib).  
        
    Also, note the "Socket port" value.  It is needed when connecting [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib).
    ![](docs/assets/config-api.png)
1) [For Paper Trading] Log into the [Interactive Brokers Web Interface](https://interactivebrokers.com/).
1) [For Paper Trading] In the [Interactive Brokers Web Interface](https://interactivebrokers.com/), navigate to `Account->Settings->Paper Trading Account` and make sure that "Share real-time market data subscriptions with paper trading account?" is set to true.


## Launch
To launch the system:

### Launch with Docker

This is the most tested way to launch.

1) Launch [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php).
2) Accept incoming connections to [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php).  (May not be required for all sessions.)
![](docs/assets/allow-connections.png)
3) Create a directory for your data and scripts
    ```bash
    mkdir data
    ```
4) Launch the system (Option 1):
    * On Mac:
    ```bash
    git clone git@github.com:deephaven-examples/deephaven-ib.git
    cd deephaven-ib/docker/dev/build.sh
    # Set jvm_args to the desired JVM memory for Deephaven
    docker run -it -v data:/data -p 10000:10000 deephaven-examples/deephaven-ib:dev python3 -i -c "from deephaven_server import Server; _server = Server(port=10000, jvm_args=['-Xmx4g']); _server.start()"
    ```
    * On other platforms:
    ```bash
    # Set jvm_args to the desired JVM memory for Deephaven
    docker run -it -v data:/data -p 10000:10000 ghcr.io/deephaven-examples/deephaven-ib python3 -i -c "from deephaven_server import Server; _server = Server(port=10000, jvm_args=['-Xmx4g']); _server.start()"
    ```
5) Launch the system and execute a custom script (Option 2):
    * On Mac:
    ```bash
    git clone git@github.com:deephaven-examples/deephaven-ib.git
    cd deephaven-ib/docker/dev/build.sh
    # your_script.py must begin with: "from deephaven_server import Server; _server = Server(port=10000, jvm_args=['-Xmx4g']); _server.start()"
    # Set jvm_args to the desired JVM memory for Deephaven
    cp path/to/your_script.py data/your_script.py
    docker run -it -v data:/data -p 10000:10000 deephaven-examples/deephaven-ib:dev python3 -i /data/your_script.py
    ```
    * On other platforms:
    ```bash
    # your_script.py must begin with: "from deephaven_server import Server; _server = Server(port=10000, jvm_args=['-Xmx4g']); _server.start()"
    # Set jvm_args to the desired JVM memory for Deephaven
    cp path/to/your_script.py data/your_script.py
    docker run -it -v data:/data -p 10000:10000 ghcr.io/deephaven-examples/deephaven-ib python3 -i /data/your_script.py
    ```
7) Launch the [Deephaven IDE](https://github.com/deephaven/deephaven-core/blob/main/README.md#run-deephaven-ide) by navigating to [http://localhost:10000/ide/](http://localhost:10000/ide/) in a browser.

### Launch with a local installation (No Docker)

> **_NOTE:_**  Deephaven pip install is not yet supported on all architectures.  This launch should work on Linux (AMD64 and ARM64) and Windows WSL.  It is not yet supported on Windows without WSL or Mac.  For these architectures, you should use the Docker installation.  As soon as Deephaven supports these architectures for pip, [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) will work.

It is possible to use [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) without docker, but this is a 
new feature and has not been well tested.  To do this:
1) Launch [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php).
2) Accept incoming connections to [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php).  (May not be required for all sessions.)
![](docs/assets/allow-connections.png)
3) Install `ibapi`:
    ```bash
    # pip installed version of ibapi is too old.  You must download and install a more recent version.
    curl -o ./api.zip "https://interactivebrokers.github.io/downloads/twsapi_macunix.1016.01.zip"
    unzip api.zip
    cd ./IBJts/source/pythonclient
    python3 setup.py install
    ```
4) Install [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib):
    ```bash
    pip3 install --upgrade pip setuptools wheel
    pip3 install deephaven-ib
    ```
5) Install Java 11 and set the appropriate `JAVA_HOME` environment variable.    
6) Launch the system (Option 1):
    ```bash
    # Set jvm_args to the desired JVM memory for Deephaven
    python3 -i -c "from deephaven_server import Server; _server = Server(port=10000, jvm_args=['-Xmx4g']); _server.start()"
    ```
7) Launch the system and execute a custom script (Option 2):
    ```bash
    # your_script.py must begin with: "from deephaven_server import Server; _server = Server(port=10000, jvm_args=['-Xmx4g']); _server.start()"
    # Set jvm_args to the desired JVM memory for Deephaven
    python3 -i /data/your_script.py
    ```
8) Launch the [Deephaven IDE](https://github.com/deephaven/deephaven-core/blob/main/README.md#run-deephaven-ide) by navigating to [http://localhost:10000/ide/](http://localhost:10000/ide/) in a browser.
9) Use `host=localhost` for the hostname in the examples

# Use deephaven-ib

To use [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib), you will need to open the [Deephaven Web IDE](http://localhost:10000/ide/) 
by navigating to [http://localhost:10000/ide/](http://localhost:10000/ide/) in your web browser.  The following commands
can be executed in the console.

## Connect to TWS

All [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) sessions need to first create a client for interacting 
with [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php).

`host` is the computer to connect to.  When using [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) inside
of Docker, `host` should be set to `host.docker.internal`.  

`port` is the network port [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php)
communicates on.  This value can be found in the [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php)
settings.  By default, production trading uses port 7496, and paper trading uses port 7497.  See [Setup](#setup) and [TWS Initial Setup](https://interactivebrokers.github.io/tws-api/initial_setup.html) for more details.

`read_only` is a boolean value that is used to enable trading.  By default `read_only=True`, preventing trading.  Use `read_only=False` to enable trading.

`is_fa` is a boolean value that is used to indicate if an account is a financial advisor (FA) account or a regular acccount. 
 By using `is_fa=True`, FA account configuration details are requested.  By default `is_fa=False`.  
 If `is_fa=True` is used on a non-FA account, everything should work fine, but there will be error messages.
 If `is_fa=False` (the default) is used on a FA account, FA account configurations will not be populated in tables such as
 `accounts_groups`, `accounts_allocation_profiles`, and `accounts_aliases`.

`order_id_strategy` is the strategy used for obtaining new order ids.  Order id algorithms have tradeoffs in execution time, support for multiple, concurrent sessions, and avoidance of TWS bugs.
* `OrderIdStrategy.RETRY` (default) - Request a new order ID from TWS every time one is needed.  Retry if TWS does not respond quickly.  This usually avoids a TWS bug where it does not always respond.
* `OrderIdStrategy.BASIC` - Request a new order ID from TWS every time one is needed.  Does not retry, so it may deadlock if TWS does not respond.
* `OrderIdStrategy.INCREMENT` - Use the initial order ID sent by TWS and increment the value upon every request.  This is fast, but it may fail for multiple, concurrent sessions connected to TWS.

For a read-write session that allows trading:
```python
import deephaven_ib as dhib

client = dhib.IbSessionTws(host="host.docker.internal", port=7497, read_only=False)
client.connect()
```

For a read-only session that does not allow trading:
```python
import deephaven_ib as dhib

client = dhib.IbSessionTws(host="host.docker.internal", port=7497, read_only=True)
client.connect()
```

For a read-only financial advisor (FA) session that does not allow trading:
```python
import deephaven_ib as dhib

client = dhib.IbSessionTws(host="host.docker.internal", port=7497, read_only=True, is_fa=True)
client.connect()
```

After `client.connect()` is called, TWS requires that the connection be accepted.
![](docs/assets/accept-connection.png)

## Get data

[IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php) data is stored in
the [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) client as two dictionaries of tables:
* `tables` contains the tables most users will want.  
* `tables_raw` contains raw [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php)
data.

As an example, the `requests` table, that contains all of the requests made to [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php),
can be obtained by:

```python
requests = client.tables["requests"]
```

To display all of the tables in the [Deephaven IDE](https://github.com/deephaven/deephaven-core/blob/main/README.md#run-deephaven-ide),
place the tables in the global namespace.  This can most easily be done by:

```python
for k, v in client.tables.items():
    globals()[k] = v
```

Similarly, raw tables can be viewed by:

```python
for k, v in client.tables_raw.items():
    globals()[k] = v
```

A list of available tables can be obtained by:

```python
print(client.tables.keys())
print(client.tables_raw.keys())
```

## Create a contract

In IB, financial contracts include:
* Stocks
* FX
* Cryptocurrency
* Indexes
* CFDs
* Futures
* Options
* Futures Options
* Bonds
* Mutual Funds
* Warrants
* Commodities

To create a contract for use in [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib),
the contract must first be created as an `ibapi.contract.Contract`.  Once the contract is created,
it must be registered with [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) before it
can be used.  

Details on creating contracts can be found at 
[https://interactivebrokers.github.io/tws-api/basic_contracts.html](https://interactivebrokers.github.io/tws-api/basic_contracts.html).

Registering the contract causes the contract details to appear in the `contracts_details` table.

```python
from ibapi.contract import Contract

c = Contract()
c.symbol = 'AAPL'
c.secType = 'STK'
c.exchange = 'SMART'
c.currency = 'USD'

rc = client.get_registered_contract(c)
print(rc)
```

[./examples/example_all_functionality.py](./examples/example_all_functionality.py) illustrates the creation and registration
of many different types of contracts.

## Request market data

Market data can be requested from the client using:
* `request_market_data`
* `request_bars_historical`
* `request_bars_realtime`
* `request_tick_data_realtime`
* `request_tick_data_historical`

```python
from ibapi.contract import Contract

import deephaven_ib as dhib

# Use delayed market data if you do not have access to real-time
# client.set_market_data_type(dhib.MarketDataType.DELAYED)
client.set_market_data_type(dhib.MarketDataType.REAL_TIME)


c = Contract()
c.symbol = 'AAPL'
c.secType = 'STK'
c.exchange = 'SMART'
c.currency = 'USD'

rc = client.get_registered_contract(c)
print(rc)

client.request_market_data(rc)
client.request_tick_data_realtime(rc, dhib.TickDataType.BID_ASK)
client.request_tick_data_realtime(rc, dhib.TickDataType.LAST)
client.request_tick_data_realtime(rc, dhib.TickDataType.MIDPOINT)
```

[./examples/example_all_functionality.py](./examples/example_all_functionality.py) illustrates requesting
many kinds of market data.


## Request news

Market data can be requested from the client using:
* `request_news_historical`
* `request_news_article`

```python
from ibapi.contract import Contract

from deephaven.time import to_datetime

contract = Contract()
contract.symbol = "GOOG"
contract.secType = "STK"
contract.currency = "USD"
contract.exchange = "SMART"

rc = client.get_registered_contract(contract)
print(contract)

start = to_datetime("2021-01-01T00:00:00 NY")
end = to_datetime("2021-01-10T00:00:00 NY")
client.request_news_historical(rc, start=start, end=end)

client.request_news_article(provider_code="BRFUPDN", article_id="BRFUPDN$107d53ea")
```

[./examples/example_all_functionality.py](./examples/example_all_functionality.py) illustrates requesting
news data.

## Request account details

Standard account details are requested by default.  [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php)
does not provide an API for requesting all model codes, so [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib)
can not subscribe to data for different model codes.  If you need details on non-standard
account / model code combinations, you can use:
* `request_account_pnl`
* `request_account_overview`
* `request_account_positions`

## Order management

Orders can be created and canceled using:
* `order_place`
* `order_cancel`
* `order_cancel_all`

To place an order, register a contract with [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib),
and create an `ibapi.order.Order` containing details for the order.

Details on creating orders can be found at [https://interactivebrokers.github.io/tws-api/orders.html](https://interactivebrokers.github.io/tws-api/orders.html).

```python
from ibapi.contract import Contract
from ibapi.order import Order

contract = Contract()
contract.symbol = "GOOG"
contract.secType = "STK"
contract.currency = "USD"
contract.exchange = "SMART"

rc = client.get_registered_contract(contract)
print(contract)

order = Order()
order.account = "DF4943843"
order.action = "BUY"
order.orderType = "LIMIT"
order.totalQuantity = 1
order.lmtPrice = 3000
order.eTradeOnly = False
order.firmQuoteOnly = False

req = client.order_place(rc, order)
req.cancel()

client.order_place(rc, order)
client.order_cancel_all()
```

## Queries and Mathematics

[Deephaven](https://deephaven.io) has very powerful query engine that allows mathematics and queries 
to be applied to static and real-time data.  The queries can be as simple as filtering data and
as complex as artificial intelligence.

The example below computes the real-time price ratio of `DIA` (Dow Jones Index) and `SPY` (S&P 500 Index)
every 5 seconds.

For more details, see the [Deephaven Coummunity Core Documentation](https://deephaven.io/core/docs/).

```python
from ibapi.contract import Contract

c1 = Contract()
c1.symbol = 'DIA'
c1.secType = 'STK'
c1.exchange = 'SMART'
c1.currency = 'USD'

rc1 = client.get_registered_contract(c1)
print(rc1)

c2 = Contract()
c2.symbol = 'SPY'
c2.secType = 'STK'
c2.exchange = 'SMART'
c2.currency = 'USD'

rc2 = client.get_registered_contract(c2)
print(rc2)

client.set_market_data_type(dhib.MarketDataType.REAL_TIME)
client.request_market_data(rc1)
client.request_market_data(rc2)
client.request_bars_realtime(rc1, bar_type=dhib.BarDataType.MIDPOINT)
client.request_bars_realtime(rc2, bar_type=dhib.BarDataType.MIDPOINT)

bars_realtime = client.tables["bars_realtime"]

bars_dia = bars_realtime.where("Symbol=`DIA`")
bars_spy = bars_realtime.where("Symbol=`SPY`")
bars_joined = bars_dia.view(["Timestamp", "TimestampEnd", "Dia=Close"]) \
    .natural_join(bars_spy, on="TimestampEnd", joins="Spy=Close") \
    .update("Ratio = Dia/Spy")
```

![DIA SPY Ratio](docs/assets/dia_spy_ratio.png)

## Plotting

[Deephaven](https://deephaven.io) has very powerful plotting functionality for both static and real-time data.
The example below plots the bid and ask prices of `AAPL` for every tick in the market.

For more details, see the [Deephaven Coummunity Core Documentation](https://deephaven.io/core/docs/).

```python

from ibapi.contract import Contract

c = Contract()
c.symbol = 'AAPL'
c.secType = 'STK'
c.exchange = 'SMART'
c.currency = 'USD'

rc = client.get_registered_contract(c)
print(rc)

client.set_market_data_type(dhib.MarketDataType.REAL_TIME)
client.request_market_data(rc)
client.request_tick_data_realtime(rc, dhib.TickDataType.BID_ASK)

ticks_bid_ask = client.tables["ticks_bid_ask"]

from deephaven.plot import Figure

plot_aapl = Figure().plot_xy("Bid",  t=ticks_bid_ask, x="ReceiveTime", y="BidPrice") \
    .plot_xy("Ask",  t=ticks_bid_ask, x="ReceiveTime", y="AskPrice") \
    .show()
```

![AAPL Bid Ask](docs/assets/aapl_bid_ask.png)

## Help!

### Error Table

[deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) logs all [IB Trader Workstation (TWS)](https://www.interactivebrokers.com/en/trading/tws.php)
errors to the `errors` table.  This table should be monitored when using [deephaven-ib](https://github.com/deephaven-examples/deephaven-ib).

```python
errors = client.tables["errors"]
```

### Logging

[deephaven-ib](https://github.com/deephaven-examples/deephaven-ib) and `ibapi` both use Python's 
[`logging`](https://docs.python.org/3/howto/logging.html) framework.  By default, `ERROR` and higher
levels are logged.  More or less logging can be displayed by changing the logging level.

To see fewer log messages:
```python
import logging
logging.basicConfig(level=logging.CRITICAL)
```

To see all log messages:
```python
import logging
logging.basicConfig(level=logging.DEBUG)
```

A discussion of available logging levels can be found in the [Python `logging` module documentation](https://docs.python.org/3/howto/logging.html).

### Support

If you can not solve your problems through either the `errors` table or through logging, you can try:

* [deephaven-ib API Documentation](https://deephaven-examples.github.io/deephaven-ib/)
* [Interactive Brokers Support](https://www.interactivebrokers.com/en/support/individuals.php)
* [Gitter: A relaxed chat room about all things Deephaven](https://gitter.im/deephaven/deephaven)
* [Deephaven Community Slack](https://deephaven.io/slack)


# Examples

Examples can be found in [./examples](./examples).

