Update Jupiter v6 and remove auto-slippage (#950)

Author: 0xh3rman

crates/swapper/src/config.rs

@@ -138,7 +138,7 @@ pub fn get_default_slippage(chain: &Chain) -> SwapperSlippage {
     match chain {
         Chain::Solana => SwapperSlippage {
             bps: DEFAULT_SLIPPAGE_BPS * 3,
-            mode: SwapperSlippageMode::Auto,
+            mode: SwapperSlippageMode::Exact,
         },
         _ => SwapperSlippage {
             bps: DEFAULT_SLIPPAGE_BPS,

crates/swapper/src/jupiter/model.rs

@@ -8,8 +8,7 @@ pub struct QuoteRequest {
     pub amount: String,
     pub slippage_bps: u32,
     pub platform_fee_bps: u32,
-    pub auto_slippage: bool,
-    pub max_auto_slippage_bps: u32,
+    pub instruction_version: String,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -22,12 +21,12 @@ pub struct QuoteResponse {
     pub other_amount_threshold: String,
     pub swap_mode: String,
     pub slippage_bps: u32,
-    pub computed_auto_slippage: Option<u32>,
     pub platform_fee: Value,
     pub price_impact_pct: String,
     pub route_plan: Value,
     pub context_slot: i64,
     pub time_taken: f64,
+    pub instruction_version: String,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -43,12 +42,6 @@ pub struct SimulationError {
     pub error: String,
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct DynamicSlippage {
-    pub max_bps: u32,
-}
-
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct QuoteDataRequest {
@@ -57,6 +50,4 @@ pub struct QuoteDataRequest {
     pub fee_account: String,
     pub quote_response: QuoteResponse,
     pub prioritization_fee_lamports: i64,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub dynamic_slippage: Option<DynamicSlippage>,
 }

crates/swapper/src/jupiter/provider.rs

@@ -1,11 +1,11 @@
 use super::{
     PROGRAM_ADDRESS,
     client::JupiterClient,
-    model::{DynamicSlippage, QuoteDataRequest, QuoteRequest as JupiterRequest, QuoteResponse},
+    model::{QuoteDataRequest, QuoteRequest as JupiterRequest, QuoteResponse},
 };
 use crate::{
     FetchQuoteData, Options, ProviderData, ProviderType, Quote, QuoteRequest, Route, Swapper, SwapperChainAsset, SwapperError, SwapperMode, SwapperProvider, SwapperQuoteData,
-    SwapperSlippageMode, error::INVALID_ADDRESS,
+    error::INVALID_ADDRESS,
 };
 use alloy_primitives::U256;
 use async_trait::async_trait;
@@ -19,6 +19,8 @@ use gem_solana::{
 use primitives::{AssetId, Chain};
 use std::collections::HashSet;
 
+const INSTRUCTION_VERSION: &str = "V2";
+
 #[derive(Debug)]
 pub struct Jupiter<C, R>
 where
@@ -127,22 +129,15 @@ where
         let slippage_bps = swap_options.slippage.bps;
         let platform_fee_bps = swap_options.fee.unwrap_or_default().solana.bps;
 
-        let auto_slippage = match swap_options.slippage.mode {
-            SwapperSlippageMode::Auto => true,
-            SwapperSlippageMode::Exact => false,
-        };
-
         let quote_request = JupiterRequest {
             input_mint: input_mint.clone(),
             output_mint: output_mint.clone(),
             amount: request.value.clone(),
             platform_fee_bps,
             slippage_bps,
-            auto_slippage,
-            max_auto_slippage_bps: slippage_bps,
+            instruction_version: INSTRUCTION_VERSION.to_string(),
         };
         let swap_quote = self.http_client.get_swap_quote(quote_request).await?;
-        let computed_auto_slippage = swap_quote.computed_auto_slippage.unwrap_or(swap_quote.slippage_bps);
 
         // Updated docs: https://dev.jup.ag/docs/api/swap-api/quote
         // The value includes platform fees and DEX fees, excluding slippage.
@@ -159,7 +154,7 @@ where
                     route_data: serde_json::to_string(&swap_quote).unwrap_or_default(),
                     gas_limit: None,
                 }],
-                slippage_bps: computed_auto_slippage,
+                slippage_bps: swap_quote.slippage_bps,
             },
             request: request.clone(),
             eta_in_seconds: None,
@@ -178,19 +173,11 @@ where
         let quote_response: QuoteResponse = serde_json::from_str(&route.route_data).map_err(|_| SwapperError::InvalidRoute)?;
         let fee_account = self.fetch_fee_account(&quote.request.mode, &quote.request.options, &input_mint, &output_mint).await?;
 
-        let dynamic_slippage = match quote.request.options.slippage.mode {
-            SwapperSlippageMode::Auto => Some(DynamicSlippage {
-                max_bps: quote.request.options.slippage.bps,
-            }),
-            SwapperSlippageMode::Exact => None,
-        };
-
         let request = QuoteDataRequest {
             user_public_key: quote.request.wallet_address.clone(),
             fee_account,
             quote_response,
             prioritization_fee_lamports: 500_000,
-            dynamic_slippage,
         };
 
         let quote_data = self.http_client.get_swap_quote_data(&request).await?;