These incomplete SDK implementations in the Rust repository were outdated
and redundant. The complete versions are maintained in separate repositories:
- sol-trade-sdk-ts (Node.js)
- sol-trade-sdk-python (Python)
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- Add `mev_protection: bool` to `TradeConfig` and `InfrastructureConfig` (default: false)
- Astralane QUIC: switches to port 9000 (MEV-protected endpoint) when enabled
- BlockRazor HTTP: uses `mode=sandwichMitigation` query param when enabled
- BlockRazor gRPC: uses `mode=sandwichMitigation` when enabled
- Add `SWQOS_ENDPOINTS_ASTRALANE_QUIC_MEV` constants (port 9000) to `constants/swqos.rs`
- Fix `astralane_quic.rs` IP candidates to use the actual port from the address (supports both 7000 and 9000)
- Refactor `TradeConfig` to builder pattern via `TradeConfig::builder()`
- Introduce `TradeConfigBuilder` with all optional fields and clear defaults
- `TradeConfig::new()` kept as a shortcut (calls `builder().build()`) for backward compatibility
- Remove old `with_wsol_ata_config` / `with_check_min_tip` / `with_swqos_cores_from_end` / `with_mev_protection` chain methods
- Update all 16 examples to use `TradeConfig::builder()` with commented-out options so users can discover all available settings at a glance
- Update README.md and README_CN.md code snippets to use builder pattern
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Changes to src/utils/calc/common.rs:
- Add MAX_SLIPPAGE_BASIS_POINTS constant (9999 = 99.99%)
- Clamp basis_points in calculate_with_slippage_buy to prevent amount doubling
Changes to src/instruction/pumpswap.rs:
- Fix WSOL wrap amount calculation for exact vs non-exact input modes
- Use input_amount for exact mode, sol_amount for non-exact mode
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- Store gRPC client as Arc<ArcSwap<BlockRazorGrpcClient>> so BlockRazorBackend
can derive Clone (ArcSwap does not implement Clone).
- Cloning the outer Arc gives owned handles for tokio::spawn in start_ping_task,
fixing E0521 (borrowed self escaping to 'static future).
Made-with: Cursor
Implement lock-free reconnection mechanism using ArcSwap to maintain high
performance for transaction sending while providing automatic recovery
from connection failures.
Key improvements:
- Add automatic reconnection with exponential backoff (1s -> 60s max)
- Use ArcSwap for lock-free atomic reference swapping
- Zero overhead for send_transaction path: only atomic load operation
- Background health check every 30s triggers reconnection on failure
- Reconnection success resets backoff delay to 1s
This ensures transaction sending remains fast (no lock contention) while
providing automatic recovery from network issues or server restarts.
Inspired by the proven reconnection pattern in sol-parser-sdk.
0xfnzero