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DisneyandGitHub d6399b92aa Feat/support binance (#22)
* add docs

* Add Binance exchange support

- Updated the environment configuration to include Binance as a selectable exchange option.
- Enhanced the README documentation to reflect the addition of Binance.
- Implemented the Binance exchange adapter and integrated it into the existing exchange framework.
- Modified the basis arbitrage strategy to support Binance alongside existing exchanges.
- Added tests to ensure proper functionality and integration of Binance within the trading system.

* Enhance README with detailed Binance exchange configuration

- Added comprehensive instructions for setting up Binance as an exchange option.
- Included environment variable specifications for API keys, market types, and trading symbols.
- Provided examples for both perpetual and spot trading strategies.
- Clarified the use of WebSocket and REST for the Binance adapter.

* Enhance exchange support and testing framework

- Added a new test suite for exchange contracts to ensure consistency and functionality across supported exchanges.
- Refactored exchange ID handling to utilize a centralized list of supported exchanges, improving maintainability.
- Updated CLI argument parsing and help documentation to reflect the new exchange structure.
- Introduced utility functions for validating supported exchanges and their display names.
- Enhanced the BasisApp and strategy runner to leverage the new exchange validation logic.
- Added a new test command for running exchange-related tests.

* Refactor exchange contract tests and update CLI commands

- Removed the trailing supported exchanges set and simplified the logic for trailing stop support in the exchange contract tests.
- Updated the test command for exchange contracts to exclude unnecessary tests, streamlining the testing process.
- Enhanced test descriptions for clarity and improved understanding of the functionality being tested.
2026-02-27 11:37:44 +08:00

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title, source, fetched_at
title source fetched_at
Event Balance and Position Update | Binance Open Platform https://developers.binance.com/docs/derivatives/options-trading/user-data-streams/Event-Balance-and-Position-Update 2026-01-27T05:28:12.627Z

Event: Balance and Position Update

Event Description

Event type is ACCOUNT_UPDATE.

  • When balance or position get updated, this event will be pushed.

    • ACCOUNT_UPDATE will be pushed only when update happens on user's account, including changes on balances, positions.
    • Unfilled orders or cancelled orders will not make the event ACCOUNT_UPDATE pushed, since there's no change on positions.
    • "position" in ACCOUNT_UPDATE: Only symbols of changed positions will be pushed.
  • The field "m" represents the reason type for the event and may shows the following possible types:

    • DEPOSIT
    • WITHDRAW
    • ORDER
  • The field "bc" represents the balance change except for PnL and commission.

Event Name

BALANCE_POSITION_UPDATE

Response Example

{        "e": "BALANCE_POSITION_UPDATE",        "E": 1762917544216,        "T": 1762917544206,        "m": "ORDER",        "B": [            {                "a": "USDT",                  // Margin asset                  "b": "10000471.37940900",     // Account balance                  "bc": "0"                     // Balance Change except PnL and Commission            }        ],        "P": [            {                "s": "BTC-251123-126000-C",   // symbol                 "c": "-0.1000",               // position quantity                "p": "-120.00000000",         // Position value                  "a": "1200.00000000"          // Average entry price               }        ]}