# YATIS - Yet Another TBank Investment Sdk
## Usage
### Creating api
```rust
use yatis::*;
use t_types::*;
let token = std::env::var("TOKEN").expect("need to set env var 'TOKEN'");
let api = Api::create_invest_service(token)?;
```
### Unary requests
```rust
let share: ShareResponse = api.clone().request(InstrumentRequest{
id_type:InstrumentIdType::Ticker.into(),
class_code:Some("TQBR".to_string()),
id:"T".to_string()
}).await?;
println!("T: {share:?}\n");
```
### Stream subscriptions
```rust
let figi = "TCS80A107UL4".to_string(); //T-Techno shares
let (s, mut r) = futures::channel::mpsc::channel::<StreamResponse>(10);
api.clone().start_stream(MarketDataServerSideStreamRequest {
subscribe_last_price_request: Some(SubscribeLastPriceRequest {
subscription_action: SubscriptionAction::Subscribe.into(),
instruments: vec![LastPriceInstrument {figi,..Default::default()}],
..Default::default()
}),
ping_settings: Some(PingDelaySettings {ping_delay_ms: Some(5000)}), //used by sdk to detect hung connections
subscribe_candles_request: None, subscribe_order_book_request: None, subscribe_trades_request: None, subscribe_info_request: None,
}, s).await?;
use futures::StreamExt;
while let Some(response) = r.next().await {
println!("{response:?}");
//do not forget to set exit condition... if needed...
}
```
## Targets
- more usability
- easy to use any types of generated proto of [investAPI]
- ability to create your own implementation of common traits, like `InvestService`
- easy to use pool objects
## Goals
- [x] Investing api implementation
- [x] Unary operations (all)
- [x] Pool of reusable connections
- [ ] Sandbox API
- [x] Server side streams (all)
- [x] Authomatic reconnect on stucked connections
- [x] Resubscribtion on reconnect
- [ ] Connections limitation by tariff
- [ ] Bidirecional streams
- [ ] Balanced pool of streams
- [ ] Authomatic reconnect on stucked connections
- [ ] Resubscribtion on reconnect
[investAPI]: https://github.com/RussianInvestments/investAPI/tree/124813610a9dbb0d8c91067a67d9c26a02c8c713/src/docs/contracts