Binance Futures API

[mah454]

I implemented binance futures api according to https://binance-docs.github.io/apidocs/futures/en

1. Rest API
2. WebSocket Connection

With a simple examples .

[icemagno]

Great!! Many thanks to all of you.
This is a very important work.

[mah454]

after 48h development and programming :
I refactor whole project (FORCED)

1. new implementation of BinanceApiConfig with ApiConfig annotation
2. implemented BinanceEngineType with types (SPOT, MARGIN, SWAP, FUTURES, TESTNET)
3. BinanceAbstractFactory replaced by old your factory pattern
4. improvement JavaDoc
5. new examples
6. cleanup codes
7. bug fixes
8. and other improvements ....

Your Welcome .
Thank you 👍

[mah454]

Binance UserDataStream improved and bug fixed .

[rumenyavorov]

I am not able to use this maven library with this dependency its not finding it, and i cant download it

<dependency>
  <groupId>com.binance.api</groupId>
  <artifactId>binance-api-client</artifactId>
  <version>1.0.0</version>
</dependency>

[mah454]

1. Binance futures HedgeMode implemented
2. Improvement examples
3. PrecisionFormat enum implemented for simplify formatting numbers
4. new apis
   /fapi/v2/positionRisk
   /fapi/v1/marginType
   /fapi/v1/positionSide/dual
   /fapi/v1/leverage

version changed to 1.1 (not pushed to maven central yet)

[mah454]

I am not able to use this maven library with this dependency its not finding it, and i cant download it

<dependency>
  <groupId>com.binance.api</groupId>
  <artifactId>binance-api-client</artifactId>
  <version>1.0.0</version>
</dependency>

my implementation not merged yet .

[eapfel]

Hi, do you have plans to merge this PR?
We need to use the futures API so our current solution would be to fork the repo and merge it on our own, but we'd prefer to not stray too far from the main trunk