feat: batch 1 API updates — new endpoints, WS channel, _fp fields

CHANGELOG.md

@@ -7,6 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- New `trigger_order_group()` endpoint to manually trigger an order group's
+  auto-cancel (PUT `/portfolio/order_groups/{id}/trigger`).
+- New `update_order_group_limit()` endpoint to change an order group's contracts
+  limit (PUT `/portfolio/order_groups/{id}/limit`).
+- New `get_api_limits()` endpoint to retrieve API tier and rate limits
+  (GET `/account/limits`).
+- `contracts_limit_fp` fixed-point string field on `CreateOrderGroupRequest`,
+  `UpdateOrderGroupLimitRequest`, `GetOrderGroupResponse`, and `OrderGroupSummary`.
+  The integer `contracts_limit` field is now optional (provide one or both).
+- New `OrderGroupUpdates` WebSocket channel for order group lifecycle events
+  (`OrderGroupUpdateData`, `OrderGroupEventType`).
+- Fixed-point `_fp` fields added to WebSocket message types: `delta_fp` on
+  `OrderbookDeltaData`, `volume_fp`/`open_interest_fp` on `TickerData`,
+  `count_fp` on `TradeData`, `count_fp`/`post_position_fp` on `FillData`,
+  and `position_fp`/`volume_fp` on `MarketPositionData`.
+
 ### Fixed
 
 - `OrderbookAggregator` now drops delta messages that arrive before a snapshot

examples/order_groups.rs

@@ -12,6 +12,7 @@
 use kalshi_trade_rs::{
     Action, CreateOrderGroupRequest, CreateOrderRequest, GetMarketsParams, GetOrderGroupsParams,
     KalshiClient, KalshiConfig, MarketFilterStatus, OrderType, Side, TimeInForce,
+    UpdateOrderGroupLimitRequest,
 };
 
 #[tokio::main]
@@ -108,14 +109,31 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     println!("Page 1: {} groups", page1.order_groups.len());
     println!();
 
-    // 6. Reset Order Group
+    // 6. Update Order Group Limit
+    println!("=== Update Order Group Limit ===");
+    println!("Updating contracts limit to 20...\n");
+    let update_request = UpdateOrderGroupLimitRequest::new(20);
+    client
+        .update_order_group_limit(order_group_id, update_request)
+        .await?;
+    println!("Limit updated to 20.");
+    println!();
+
+    // 7. Reset Order Group
     println!("=== Reset Order Group ===");
     println!("Resetting matched contracts counter...\n");
     client.reset_order_group(order_group_id).await?;
     println!("Reset complete.");
     println!();
 
-    // 7. Delete Order Group
+    // 8. Trigger Order Group
+    println!("=== Trigger Order Group ===");
+    println!("Triggering order group (cancels all orders)...\n");
+    client.trigger_order_group(order_group_id).await?;
+    println!("Order group triggered.");
+    println!();
+
+    // 9. Delete Order Group
     println!("=== Delete Order Group ===");
     println!("Deleting the order group (this cancels all orders)...\n");
     client.delete_order_group(order_group_id).await?;
@@ -146,7 +164,9 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     println!("  get_order_group(id)             - Get order group details");
     println!("  list_order_groups()             - List all order groups");
     println!("  list_order_groups_with_params() - List with pagination");
+    println!("  update_order_group_limit(id, r) - Update contracts limit");
     println!("  reset_order_group(id)           - Reset matched contracts counter");
+    println!("  trigger_order_group(id)         - Trigger auto-cancel manually");
     println!("  delete_order_group(id)          - Delete group and cancel orders");
     println!();
 

src/api.rs

@@ -3,6 +3,7 @@
 //! These modules contain endpoint-specific logic. The public API is exposed
 //! through flat methods on [`KalshiClient`](crate::KalshiClient).
 
+pub(crate) mod account;
 pub(crate) mod api_keys;
 pub(crate) mod communications;
 pub(crate) mod events;

src/api/README.md

@@ -21,7 +21,8 @@ Complete reference for all Kalshi REST API endpoints supported by this library.
 |----------|-----------|----------|
 | Exchange | 5 | 100% |
 | Orders | 10 | 100% |
-| Order Groups | 5 | 100% |
+| Order Groups | 7 | 100% |
+| Account | 1 | 100% |
 | Portfolio | 5 | 100% |
 | Subaccounts | 5 | 100% |
 | Markets | 6 | 100% |
@@ -36,7 +37,7 @@ Complete reference for all Kalshi REST API endpoints supported by this library.
 | Structured Targets | 2 | 100% |
 | Incentive Programs | 1 | 100% |
 | FCM | 2 | 100% |
-| **Total** | **75** | **100%** |
+| **Total** | **78** | **100%** |
 
 ---
 
@@ -82,11 +83,23 @@ Complete reference for all Kalshi REST API endpoints supported by this library.
 | ✅ | GET | `/portfolio/order_groups` | `list_order_groups()` | |
 | ✅ | DELETE | `/portfolio/order_groups/{id}` | `delete_order_group()` | Cancels all orders in group |
 | ✅ | PUT | `/portfolio/order_groups/{id}/reset` | `reset_order_group()` | Resets contracts counter |
+| ✅ | PUT | `/portfolio/order_groups/{id}/trigger` | `trigger_order_group()` | Triggers auto-cancel |
+| ✅ | PUT | `/portfolio/order_groups/{id}/limit` | `update_order_group_limit()` | Updates contracts limit |
 
 **Source**: `src/api/order_groups.rs`
 
 ---
 
+## Account API
+
+| Status | Method | Endpoint | Rust Function | Notes |
+|--------|--------|----------|---------------|-------|
+| ✅ | GET | `/account/limits` | `get_api_limits()` | API tier and rate limits |
+
+**Source**: `src/api/account.rs`
+
+---
+
 ## Portfolio API
 
 | Status | Method | Endpoint | Rust Function | Notes |

src/api/account.rs

@@ -0,0 +1,8 @@
+//! Account API endpoints.
+
+use crate::{client::HttpClient, error::Result, models::ApiTierLimitsResponse};
+
+/// Returns the user's API tier and rate limits.
+pub async fn get_api_limits(http: &HttpClient) -> Result<ApiTierLimitsResponse> {
+    http.get("/account/limits").await
+}

src/api/order_groups.rs

@@ -7,7 +7,7 @@ use crate::{
     error::Result,
     models::{
         CreateOrderGroupRequest, CreateOrderGroupResponse, GetOrderGroupResponse,
-        GetOrderGroupsParams, OrderGroupsResponse,
+        GetOrderGroupsParams, OrderGroupsResponse, UpdateOrderGroupLimitRequest,
     },
 };
 
@@ -55,3 +55,25 @@ pub async fn reset_order_group(http: &HttpClient, order_group_id: &str) -> Resul
     );
     http.put_empty_json(&path).await
 }
+
+/// Triggers an order group, cancelling all orders within it.
+pub async fn trigger_order_group(http: &HttpClient, order_group_id: &str) -> Result<()> {
+    let path = format!(
+        "/portfolio/order_groups/{}/trigger",
+        encode_id(order_group_id)
+    );
+    http.put_empty_json(&path).await
+}
+
+/// Updates the contracts limit for an order group.
+pub async fn update_order_group_limit(
+    http: &HttpClient,
+    order_group_id: &str,
+    request: UpdateOrderGroupLimitRequest,
+) -> Result<()> {
+    let path = format!(
+        "/portfolio/order_groups/{}/limit",
+        encode_id(order_group_id)
+    );
+    http.put_no_response(&path, &request).await
+}

src/client.rs

@@ -6,29 +6,29 @@ pub use websocket::WebSocketClient;
 
 use crate::{
     api::{
-        api_keys, communications, events, exchange, fcm, incentive_programs, live_data, markets,
-        milestones, multivariate, order_groups, orders, portfolio, search, series,
+        account, api_keys, communications, events, exchange, fcm, incentive_programs, live_data,
+        markets, milestones, multivariate, order_groups, orders, portfolio, search, series,
         structured_targets, subaccounts,
     },
     auth::KalshiConfig,
     error::Result,
     models::{
         AcceptQuoteRequest, AmendOrderRequest, AmendOrderResponse, ApiKeysResponse,
-        BalanceResponse, BatchCancelOrdersRequest, BatchCancelOrdersResponse,
-        BatchCandlesticksResponse, BatchCreateOrdersRequest, BatchCreateOrdersResponse,
-        BatchLiveDataResponse, CancelOrderResponse, CandlesticksResponse, CommunicationsIdResponse,
-        CreateApiKeyRequest, CreateApiKeyResponse, CreateMarketInCollectionRequest,
-        CreateMarketInCollectionResponse, CreateOrderGroupRequest, CreateOrderGroupResponse,
-        CreateOrderRequest, CreateQuoteRequest, CreateRfqRequest, CreateSubaccountRequest,
-        CreateSubaccountResponse, DecreaseOrderRequest, DeleteApiKeyResponse,
-        EventCandlesticksResponse, EventForecastPercentileHistoryResponse, EventMetadataResponse,
-        EventResponse, EventsResponse, ExchangeAnnouncementsResponse, ExchangeScheduleResponse,
-        ExchangeStatusResponse, FeeChangesResponse, FillsResponse, FiltersBySportResponse,
-        GenerateApiKeyRequest, GenerateApiKeyResponse, GetBatchCandlesticksParams,
-        GetBatchLiveDataParams, GetCandlesticksParams, GetEventCandlesticksParams,
-        GetEventForecastPercentileHistoryParams, GetEventParams, GetEventsParams,
-        GetFcmOrdersParams, GetFcmPositionsParams, GetFeeChangesParams, GetFillsParams,
-        GetLookupHistoryParams, GetMarketsParams, GetMilestonesParams,
+        ApiTierLimitsResponse, BalanceResponse, BatchCancelOrdersRequest,
+        BatchCancelOrdersResponse, BatchCandlesticksResponse, BatchCreateOrdersRequest,
+        BatchCreateOrdersResponse, BatchLiveDataResponse, CancelOrderResponse,
+        CandlesticksResponse, CommunicationsIdResponse, CreateApiKeyRequest, CreateApiKeyResponse,
+        CreateMarketInCollectionRequest, CreateMarketInCollectionResponse, CreateOrderGroupRequest,
+        CreateOrderGroupResponse, CreateOrderRequest, CreateQuoteRequest, CreateRfqRequest,
+        CreateSubaccountRequest, CreateSubaccountResponse, DecreaseOrderRequest,
+        DeleteApiKeyResponse, EventCandlesticksResponse, EventForecastPercentileHistoryResponse,
+        EventMetadataResponse, EventResponse, EventsResponse, ExchangeAnnouncementsResponse,
+        ExchangeScheduleResponse, ExchangeStatusResponse, FeeChangesResponse, FillsResponse,
+        FiltersBySportResponse, GenerateApiKeyRequest, GenerateApiKeyResponse,
+        GetBatchCandlesticksParams, GetBatchLiveDataParams, GetCandlesticksParams,
+        GetEventCandlesticksParams, GetEventForecastPercentileHistoryParams, GetEventParams,
+        GetEventsParams, GetFcmOrdersParams, GetFcmPositionsParams, GetFeeChangesParams,
+        GetFillsParams, GetLookupHistoryParams, GetMarketsParams, GetMilestonesParams,
         GetMultivariateCollectionsParams, GetMultivariateEventsParams, GetOrderGroupResponse,
         GetOrderGroupsParams, GetOrderbookParams, GetOrdersParams, GetPositionsParams,
         GetQueuePositionsParams, GetQuoteResponse, GetRfqResponse, GetSettlementsParams,
@@ -43,7 +43,7 @@ use crate::{
         SettlementsResponse, StructuredTargetResponse, StructuredTargetsResponse,
         SubaccountBalancesResponse, SubaccountTransfersResponse, TagsByCategoriesResponse,
         TradesResponse, TransferBetweenSubaccountsRequest, TransferResponse,
-        UserDataTimestampResponse,
+        UpdateOrderGroupLimitRequest, UserDataTimestampResponse,
     },
 };
 
@@ -1085,6 +1085,71 @@ impl KalshiClient {
         order_groups::reset_order_group(&self.http, order_group_id).await
     }
 
+    /// Trigger an order group.
+    ///
+    /// Triggers the order group, cancelling all orders within it as if the
+    /// contracts limit had been hit.
+    ///
+    /// # Arguments
+    ///
+    /// * `order_group_id` - The ID of the order group to trigger
+    ///
+    /// # Example
+    ///
+    /// ```ignore
+    /// client.trigger_order_group("og_123").await?;
+    /// println!("Triggered order group");
+    /// ```
+    pub async fn trigger_order_group(&self, order_group_id: &str) -> Result<()> {
+        order_groups::trigger_order_group(&self.http, order_group_id).await
+    }
+
+    /// Update the contracts limit for an order group.
+    ///
+    /// Changes the maximum number of contracts that can be matched within
+    /// this group before auto-cancel is triggered.
+    ///
+    /// # Arguments
+    ///
+    /// * `order_group_id` - The ID of the order group to update
+    /// * `request` - The new contracts limit
+    ///
+    /// # Example
+    ///
+    /// ```ignore
+    /// use kalshi_trade_rs::UpdateOrderGroupLimitRequest;
+    ///
+    /// let request = UpdateOrderGroupLimitRequest::new(200);
+    /// client.update_order_group_limit("og_123", request).await?;
+    /// println!("Updated order group limit");
+    /// ```
+    pub async fn update_order_group_limit(
+        &self,
+        order_group_id: &str,
+        request: UpdateOrderGroupLimitRequest,
+    ) -> Result<()> {
+        order_groups::update_order_group_limit(&self.http, order_group_id, request).await
+    }
+
+    // =========================================================================
+    // Account API
+    // =========================================================================
+
+    /// Get API tier and rate limits.
+    ///
+    /// Returns the user's API tier and associated rate limits.
+    ///
+    /// # Example
+    ///
+    /// ```ignore
+    /// let limits = client.get_api_limits().await?;
+    /// println!("Tier: {}", limits.usage_tier);
+    /// println!("Read limit: {}", limits.read_limit);
+    /// ```
+    pub async fn get_api_limits(&self) -> Result<ApiTierLimitsResponse> {
+        account::get_api_limits(&self.http).await
+    }
+
     // =========================================================================
     // Candlesticks API
     // =========================================================================

src/client/http.rs

@@ -191,6 +191,17 @@ impl HttpClient {
         response.json::<T>().await.map_err(Error::Http)
     }
 
+    /// Make a PUT request with a JSON body, expecting no response body.
+    ///
+    /// # Arguments
+    /// * `path` - The API path
+    /// * `body` - The request body to serialize as JSON
+    pub async fn put_no_response<B: Serialize>(&self, path: &str, body: &B) -> Result<()> {
+        let request = self.build_request(Method::PUT, path)?.json(body);
+        self.execute(request).await?;
+        Ok(())
+    }
+
     /// Make a PUT request with an empty body and deserialize the response.
     ///
     /// # Arguments

src/lib.rs

@@ -53,8 +53,8 @@ pub use client::{Environment, HttpClient, KalshiClient};
 pub use error::{DisconnectReason, Error, MAX_BATCH_SIZE, Result};
 pub use models::{
     AcceptQuoteRequest, Action, AmendOrderRequest, AmendOrderResponse, Announcement,
-    AnnouncementStatus, AnnouncementType, ApiKey, ApiKeysResponse, BalanceResponse,
-    BatchCancelOrderResult, BatchCancelOrdersRequest, BatchCancelOrdersResponse,
+    AnnouncementStatus, AnnouncementType, ApiKey, ApiKeysResponse, ApiTierLimitsResponse,
+    BalanceResponse, BatchCancelOrderResult, BatchCancelOrdersRequest, BatchCancelOrdersResponse,
     BatchCandlesticksResponse, BatchCreateOrdersRequest, BatchCreateOrdersResponse,
     BatchLiveDataResponse, BatchOrderError, BatchOrderResult, CancelOrderResponse, Candlestick,
     CandlestickPeriod, CandlesticksResponse, CommunicationsIdResponse, CompetitionFilter,
@@ -81,8 +81,8 @@ pub use models::{
     Series, SeriesFeeChange, SeriesListResponse, SeriesResponse, Settlement, SettlementStatus,
     SettlementsResponse, Side, SportFilter, StandardHoursPeriod, StrikeType, StructuredTarget,
     StructuredTargetResponse, StructuredTargetsResponse, TagsByCategoriesResponse, TakerSide,
-    TimeInForce, Trade, TradesResponse, TradingSession, UserDataTimestampResponse,
-    cents_to_dollars,
+    TimeInForce, Trade, TradesResponse, TradingSession, UpdateOrderGroupLimitRequest,
+    UserDataTimestampResponse, cents_to_dollars,
 };
 
 // Re-export WebSocket types for convenience

src/models.rs

@@ -3,6 +3,7 @@
 //! All monetary values are in cents unless noted otherwise.
 //! Fields ending in `_dollars` are fixed-point dollar strings.
 
+mod account;
 mod api_key;
 mod balance;
 mod common;
@@ -27,6 +28,7 @@ mod structured_target;
 mod subaccount;
 
 // Re-export all public types
+pub use account::ApiTierLimitsResponse;
 pub use api_key::{
     ApiKey, ApiKeysResponse, CreateApiKeyRequest, CreateApiKeyResponse, DeleteApiKeyResponse,
     GenerateApiKeyRequest, GenerateApiKeyResponse,
@@ -81,7 +83,7 @@ pub use order::{
 };
 pub use order_group::{
     CreateOrderGroupRequest, CreateOrderGroupResponse, GetOrderGroupResponse, GetOrderGroupsParams,
-    OrderGroupSummary, OrderGroupsResponse,
+    OrderGroupSummary, OrderGroupsResponse, UpdateOrderGroupLimitRequest,
 };
 pub use position::{EventPosition, GetPositionsParams, MarketPosition, PositionsResponse};
 pub use search::{

src/models/account.rs

@@ -0,0 +1,16 @@
+//! Account models and response types.
+
+use serde::{Deserialize, Serialize};
+
+/// Response from GET /account/limits.
+///
+/// Contains information about the user's API tier and rate limits.
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ApiTierLimitsResponse {
+    /// The user's API usage tier (e.g., "standard", "premier").
+    pub usage_tier: String,
+    /// Maximum read requests per second.
+    pub read_limit: i64,
+    /// Maximum write requests per second.
+    pub write_limit: i64,
+}