From a3619e3c5d9a0299f1284c8e29ec94ba6213fc48 Mon Sep 17 00:00:00 2001
From: Lev Khoroshansky <sololev27@gmail.com>
Date: Mon, 3 Feb 2025 18:18:45 +0100
Subject: [PATCH 1/2] feat: Add `anyhow::Error` example

---
 Cargo.toml                        |  1 +
 examples/anyhow-error/Cargo.toml  | 13 ++++++++++
 examples/anyhow-error/bindings.ts |  5 ++++
 examples/anyhow-error/src/main.rs | 40 +++++++++++++++++++++++++++++++
 4 files changed, 59 insertions(+)
 create mode 100644 examples/anyhow-error/Cargo.toml
 create mode 100644 examples/anyhow-error/bindings.ts
 create mode 100644 examples/anyhow-error/src/main.rs

diff --git a/Cargo.toml b/Cargo.toml
index a9bf91c1..faabc62d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,6 +10,7 @@ members = [
     "./examples/tauri/src-tauri",
     "./examples/legacy",
     "./examples/binario",
+    "./examples/anyhow-error",
 ]
 
 [workspace.dependencies]
diff --git a/examples/anyhow-error/Cargo.toml b/examples/anyhow-error/Cargo.toml
new file mode 100644
index 00000000..9bccbd18
--- /dev/null
+++ b/examples/anyhow-error/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "anyhow-error"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+rspc = { path = "../../rspc", features = ["typescript"] }
+specta.workspace = true
+anyhow = "1.0.95"
+thiserror = "2.0.11"
+
+[lints]
+workspace = true
diff --git a/examples/anyhow-error/bindings.ts b/examples/anyhow-error/bindings.ts
new file mode 100644
index 00000000..e4d63e90
--- /dev/null
+++ b/examples/anyhow-error/bindings.ts
@@ -0,0 +1,5 @@
+// This file was generated by [rspc](https://github.com/specta-rs/rspc). Do not edit this file manually.
+
+export type Procedures = {
+	anyhow: { kind: "query", input: any, output: any, error: any },
+}
\ No newline at end of file
diff --git a/examples/anyhow-error/src/main.rs b/examples/anyhow-error/src/main.rs
new file mode 100644
index 00000000..1caf6a32
--- /dev/null
+++ b/examples/anyhow-error/src/main.rs
@@ -0,0 +1,40 @@
+use rspc::{Procedure, Router};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+fn main() {
+    let (_procedures, _types) = Router::new()
+        .procedure(
+            //
+            "anyhow",
+            Procedure::builder().query(anyhow_procedure),
+        )
+        .build()
+        .expect("router should be built");
+}
+
+// Some procedure that needs `anyhow::Error` to be compatible with `rspc`.
+async fn anyhow_procedure(_ctx: (), _input: ()) -> Result<String, AnyhowError> {
+    let response = fallible()?; // `?` converts `anyhow::Error` into `AnyhowError`.
+    Ok(response)
+}
+
+fn fallible() -> Result<String, anyhow::Error> {
+    anyhow::bail!("oh no!")
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+// Make `anyhow::Error` work where `std::error::Error + Send + 'static` is expected.
+// NB: Define this only once; afterwards, you can import and use it anywhere.
+// See: https://github.com/dtolnay/anyhow/issues/153#issuecomment-833718851
+#[derive(Debug, thiserror::Error)]
+#[error(transparent)]
+struct AnyhowError(#[from] anyhow::Error);
+
+impl rspc::Error for AnyhowError {
+    fn into_procedure_error(self) -> rspc::ProcedureError {
+        let message = format!("something bad happened: {}", self);
+        rspc::ResolverError::new(message, Some(self)).into()
+    }
+}

From c5b37e699d1753a81457cf7f55d2b29d63fa70f6 Mon Sep 17 00:00:00 2001
From: Oscar Beaumont <oscar@otbeaumont.me>
Date: Fri, 7 Feb 2025 15:38:24 +1100
Subject: [PATCH 2/2] nit

---
 Cargo.toml                                    | 2 +-
 examples/{anyhow-error => anyhow}/Cargo.toml  | 5 +++--
 examples/{anyhow-error => anyhow}/bindings.ts | 0
 examples/{anyhow-error => anyhow}/src/main.rs | 9 +++++++--
 4 files changed, 11 insertions(+), 5 deletions(-)
 rename examples/{anyhow-error => anyhow}/Cargo.toml (76%)
 rename examples/{anyhow-error => anyhow}/bindings.ts (100%)
 rename examples/{anyhow-error => anyhow}/src/main.rs (90%)

diff --git a/Cargo.toml b/Cargo.toml
index faabc62d..2776468d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ members = [
     "./examples/tauri/src-tauri",
     "./examples/legacy",
     "./examples/binario",
-    "./examples/anyhow-error",
+    "./examples/anyhow",
 ]
 
 [workspace.dependencies]
diff --git a/examples/anyhow-error/Cargo.toml b/examples/anyhow/Cargo.toml
similarity index 76%
rename from examples/anyhow-error/Cargo.toml
rename to examples/anyhow/Cargo.toml
index 9bccbd18..aff7d6ff 100644
--- a/examples/anyhow-error/Cargo.toml
+++ b/examples/anyhow/Cargo.toml
@@ -1,7 +1,8 @@
 [package]
-name = "anyhow-error"
-version = "0.1.0"
+name = "example-anyhow"
+version = "0.0.0"
 edition = "2021"
+publish = false
 
 [dependencies]
 rspc = { path = "../../rspc", features = ["typescript"] }
diff --git a/examples/anyhow-error/bindings.ts b/examples/anyhow/bindings.ts
similarity index 100%
rename from examples/anyhow-error/bindings.ts
rename to examples/anyhow/bindings.ts
diff --git a/examples/anyhow-error/src/main.rs b/examples/anyhow/src/main.rs
similarity index 90%
rename from examples/anyhow-error/src/main.rs
rename to examples/anyhow/src/main.rs
index 1caf6a32..e1f6d2ad 100644
--- a/examples/anyhow-error/src/main.rs
+++ b/examples/anyhow/src/main.rs
@@ -1,4 +1,5 @@
 use rspc::{Procedure, Router};
+use specta::Type;
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
@@ -28,9 +29,13 @@ fn fallible() -> Result<String, anyhow::Error> {
 // Make `anyhow::Error` work where `std::error::Error + Send + 'static` is expected.
 // NB: Define this only once; afterwards, you can import and use it anywhere.
 // See: https://github.com/dtolnay/anyhow/issues/153#issuecomment-833718851
-#[derive(Debug, thiserror::Error)]
+#[derive(Debug, thiserror::Error, Type)]
 #[error(transparent)]
-struct AnyhowError(#[from] anyhow::Error);
+struct AnyhowError(
+    #[from]
+    #[serde(skip)]
+    anyhow::Error,
+);
 
 impl rspc::Error for AnyhowError {
     fn into_procedure_error(self) -> rspc::ProcedureError {