From ce1680e0a75bfd71c308e97c3d361a80ec8f93a3 Mon Sep 17 00:00:00 2001
From: Wil Boayue <wil@wsbsolutions.com>
Date: Fri, 15 Nov 2024 17:43:42 -0800
Subject: [PATCH] labeled release. added validation (#182)

---
 Cargo.toml                    |  2 +-
 README.md                     | 15 ++-------------
 src/errors.rs                 |  2 ++
 src/market_data/historical.rs |  4 ++++
 4 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 77707026..750b4284 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ibapi"
-version = "1.0.2"
+version = "1.0.3"
 edition = "2021"
 authors = ["Wil Boayue <wil@wsbsolutions.com>"]
 description = "A Rust implementation of the Interactive Brokers TWS API, providing a reliable and user friendly interface for TWS and IB Gateway. Designed with a focus on simplicity and performance."
diff --git a/README.md b/README.md
index 75b480e2..b4bd23c7 100644
--- a/README.md
+++ b/README.md
@@ -18,18 +18,7 @@ The [Client documentation](https://docs.rs/ibapi/latest/ibapi/struct.Client.html
 
 ## Install
 
-Run the following Cargo command in your project directory:
-
-```bash
-cargo add ibapi
-```
-
-Or add the following line to your `Cargo.toml`:
-
-```toml
-ibapi = "1.0.0"
-```
-> **Note**: Check [crates.io/crates/ibapi](https://crates.io/crates/ibapi) for the latest available version.
+Check [crates.io/crates/ibapi](https://crates.io/crates/ibapi) for the latest available version and installation instructions.
 
 ## Examples
 
@@ -245,7 +234,7 @@ fn main() {
         });
         handles.push(handle);
     }
-    
+
     handles.into_iter().for_each(|handle| handle.join().unwrap());
 }
 ```
diff --git a/src/errors.rs b/src/errors.rs
index 1a22729e..09be7056 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -17,6 +17,7 @@ pub enum Error {
     Parse(usize, String, String),
     ServerVersion(i32, i32, String),
     Simple(String),
+    InvalidArgument(String),
     ConnectionFailed,
     ConnectionReset,
     Cancelled,
@@ -49,6 +50,7 @@ impl std::fmt::Display for Error {
             Error::UnexpectedEndOfStream => write!(f, "UnexpectedEndOfStream"),
 
             Error::Simple(ref err) => write!(f, "error occurred: {err}"),
+            Error::InvalidArgument(ref err) => write!(f, "InvalidArgument: {err}"),
         }
     }
 }
diff --git a/src/market_data/historical.rs b/src/market_data/historical.rs
index ba3c6cda..3fcd9751 100644
--- a/src/market_data/historical.rs
+++ b/src/market_data/historical.rs
@@ -341,6 +341,10 @@ pub(crate) fn historical_data(
         )?;
     }
 
+    if end_date.is_some() && what_to_show == Some(WhatToShow::AdjustedLast) {
+        return Err(Error::InvalidArgument("end_date must be None when requesting WhatToShow::AdjustedLast. You might have called Client::historical_data with WhatToShow::AdjustedLast".into()));
+    }
+
     loop {
         let request_id = client.next_request_id();
         let request = encoders::encode_request_historical_data(