refactor: cdk MSRV

crates/cdk-axum/Cargo.toml

@@ -1,19 +1,19 @@
 [package]
 name = "cdk-axum"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
-license.workspace = true
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 description = "Cashu CDK axum webserver"
 
 [dependencies]
-anyhow.workspace = true
-async-trait.workspace = true
-axum.workspace = true
-cdk = { workspace = true, default-features = false, features = ["mint"] }
-tokio.workspace = true
-tower-http.workspace = true
-tracing.workspace = true
-futures.workspace = true
+anyhow = "1"
+async-trait = "0.1"
+axum = "0.6.20"
+cdk = { path = "../cdk", default-features = false, features = ["mint"] }
+tokio = { version = "1", default-features = false }
+tower-http = { version = "0.4.4", features = ["cors"] }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+futures = { version = "0.3.28", default-features = false }

crates/cdk-axum/src/lib.rs

@@ -58,8 +58,9 @@ pub async fn create_mint_router(
     Ok(mint_router)
 }
 
+/// CDK Mint State
 #[derive(Clone)]
-struct MintState {
+pub struct MintState {
     ln: HashMap<LnKey, Arc<dyn MintLightning<Err = cdk_lightning::Error> + Send + Sync>>,
     mint: Arc<Mint>,
     mint_url: MintUrl,

crates/cdk-cli/Cargo.toml

@@ -1,32 +1,32 @@
 [package]
 name = "cdk-cli"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
 description = "Cashu cli wallet built on CDK"
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-anyhow.workspace = true
-bip39.workspace = true
-cdk = { workspace = true, default-features = false, features = ["wallet"] }
-cdk-redb = { workspace = true, default-features = false, features = ["wallet"] }
-cdk-sqlite = { workspace = true, default-features = false, features = ["wallet"] }
-clap.workspace = true
-serde = { workspace = true, features = ["derive"] }
-serde_json.workspace = true
-tokio.workspace = true
-tracing.workspace = true
-tracing-subscriber.workspace = true
-rand.workspace = true
-home.workspace = true
+anyhow = "1"
+bip39 = "2.0"
+cdk = { path = "../cdk", default-features = false, features = ["wallet"] }
+cdk-redb = { path = "../cdk-redb", default-features = false, features = ["wallet"] }
+cdk-sqlite = { path = "../cdk-sqlite", default-features = false, features = ["wallet"] }
+clap = { version = "4.4.8", features = ["derive", "env", "default"] }
+serde = { version = "1", default-features = false, features = ["derive"] }
+serde_json = "1"
+tokio = { version = "1", default-features = false }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
+rand = "0.8.5"
+home = "0.5.5"
 nostr-sdk = { version = "0.33.0", default-features = false, features = [
     "nip04",
     "nip44"
 ]}
-url.workspace = true
+url = "2.3"

crates/cdk-cln/Cargo.toml

@@ -1,21 +1,21 @@
 [package]
 name = "cdk-cln"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 description = "CDK ln backend for cln"
 
 [dependencies]
-async-trait.workspace = true
-bitcoin.workspace = true
-cdk = { workspace = true, default-features = false, features = ["mint"] }
+async-trait = "0.1"
+bitcoin = { version = "0.30", default-features = false } # lightning-invoice uses v0.30
+cdk = { path = "../cdk", default-features = false, features = ["mint"] }
 cln-rpc = "0.1.9"
-futures.workspace = true
-tokio.workspace = true
-tracing.workspace = true
-thiserror.workspace = true
-uuid.workspace = true
+futures = { version = "0.3.28", default-features = false }
+tokio = { version = "1", default-features = false }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+thiserror = "1"
+uuid = { version = "1", features = ["v4"] }

crates/cdk-fake-wallet/Cargo.toml

@@ -1,24 +1,24 @@
 [package]
 name = "cdk-fake-wallet"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
-description = "CDK ln backend for cln"
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
+description = "CDK fake ln backend"
 
 [dependencies]
-async-trait.workspace = true
-bitcoin.workspace = true
-cdk = { workspace = true, default-features = false, features = ["mint"] }
-futures.workspace = true
-tokio.workspace = true
-tracing.workspace = true
-thiserror.workspace = true
-uuid.workspace = true
-lightning-invoice.workspace = true
+async-trait = "0.1.74"
+bitcoin = { version = "0.30", default-features = false } # lightning-invoice uses v0.30
+cdk = { path = "../cdk", default-features = false, features = ["mint"] }
+futures = { version = "0.3.28", default-features = false }
+tokio = { version = "1", default-features = false }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+thiserror = "1"
+uuid = { version = "1", features = ["v4"] }
+lightning-invoice = { version = "0.31", features = ["serde"] }
 lightning = "0.0.123"
 tokio-stream = "0.1.15"
-rand.workspace = true
+rand = "0.8.5"

crates/cdk-integration-tests/Cargo.toml

@@ -1,31 +1,31 @@
 [package]
 name = "cdk-integration-tests"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
 description = "Core Cashu Development Kit library implementing the Cashu protocol"
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 
 
 [features]
 
 
 [dependencies]
-axum.workspace = true
-rand.workspace = true
-bip39 = { workspace = true, features = ["rand"] }
-anyhow.workspace = true
-cdk = { workspace = true, features = ["mint", "wallet"] }
-cdk-axum.workspace = true
-cdk-fake-wallet.workspace = true
-tower-http.workspace = true
-futures.workspace = true
+axum = "0.6.20"
+rand = "0.8.5"
+bip39 = { version = "2.0", features = ["rand"] }
+anyhow = "1"
+cdk = { path = "../cdk", features = ["mint", "wallet"] }
+cdk-axum = { path = "../cdk-axum"}
+cdk-fake-wallet = { path = "../cdk-fake-wallet" }
+tower-http = { version = "0.4.4", features = ["cors"] }
+futures = { version = "0.3.28", default-features = false }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-tokio = { workspace = true, features = [
+tokio = { version = "1", features = [
     "rt-multi-thread",
     "time",
     "macros",
@@ -33,18 +33,15 @@ tokio = { workspace = true, features = [
 ] }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-tokio = { workspace = true, features = ["rt", "macros", "sync", "time"] }
+tokio = { version = "1", features = ["rt", "macros", "sync", "time"] }
 getrandom = { version = "0.2", features = ["js"] }
 instant = { version = "0.1", features = ["wasm-bindgen", "inaccurate"] }
 
 [dev-dependencies]
-axum.workspace = true
-rand.workspace = true
-bip39 = { workspace = true, features = ["rand"] }
-anyhow.workspace = true
-cdk = { workspace = true, features = ["mint", "wallet"] }
-cdk-axum.workspace = true
-cdk-fake-wallet.workspace = true
-tower-http.workspace = true
-# cdk-redb.workspace = true
-# cdk-sqlite.workspace = true
+rand = "0.8.5"
+bip39 = { version= "2.0", features = ["rand"] }
+anyhow = "1"
+cdk = { path = "../cdk", features = ["mint", "wallet"] }
+cdk-axum = { path = "../cdk-axum" }
+cdk-fake-wallet = { path = "../cdk-fake-wallet" }
+tower-http = { version = "0.4.4", features = ["cors"] }

crates/cdk-integration-tests/src/lib.rs

@@ -115,11 +115,14 @@ pub async fn start_mint(
             }
         });
     }
-    let listener =
-        tokio::net::TcpListener::bind(format!("{}:{}", LISTEN_ADDR, LISTEN_PORT)).await?;
 
-    println!("Starting mint");
-    axum::serve(listener, mint_service).await?;
+    axum::Server::bind(
+        &format!("{}:{}", LISTEN_ADDR, LISTEN_PORT)
+            .as_str()
+            .parse()?,
+    )
+    .serve(mint_service.into_make_service())
+    .await?;
 
     Ok(())
 }

crates/cdk-lnbits/Cargo.toml

@@ -1,22 +1,22 @@
 [package]
 name = "cdk-lnbits"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 description = "CDK ln backend for lnbits"
 
 [dependencies]
-async-trait.workspace = true
-anyhow.workspace = true
-axum.workspace = true
-bitcoin.workspace = true
-cdk = { workspace = true, default-features = false, features = ["mint"] }
-futures.workspace = true
-tokio.workspace = true
-tracing.workspace = true
-thiserror.workspace = true
-lnbits-rs = "0.1.0"
+async-trait = "0.1"
+anyhow = "1"
+axum = "0.6.20"
+bitcoin = { version = "0.30", default-features = false } # lightning-invoice uses v0.30
+cdk = { path = "../cdk", default-features = false, features = ["mint"] }
+futures = { version = "0.3.28", default-features = false }
+tokio = { version = "1", default-features = false }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+thiserror = "1"
+lnbits-rs = "0.2.0"

crates/cdk-lnd/Cargo.toml

@@ -1,20 +1,19 @@
 [package]
 name = "cdk-lnd"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
 description = "CDK ln backend for lnd"
 
 [dependencies]
-async-trait.workspace = true
-anyhow.workspace = true
-cdk = { workspace = true, default-features = false, features = ["mint"] }
+async-trait = "0.1"
+anyhow = "1"
+cdk = { path = "../cdk", default-features = false, features = ["mint"] }
 fedimint-tonic-lnd = "0.2.0"
-futures.workspace = true
-tokio.workspace = true
-tracing.workspace = true
-thiserror.workspace = true
+futures = { version = "0.3.28", default-features = false }
+tokio = { version = "1", default-features = false }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+thiserror = "1"

crates/cdk-lnd/README.md

@@ -0,0 +1,14 @@
+
+## Minimum Supported Rust Version (MSRV)
+
+The `cdk` library should always compile with any combination of features on Rust **1.66.0**.
+
+To build and test with the MSRV you will need to pin the below dependency versions:
+
+```shell
+cargo update -p home --precise 0.5.5
+cargo update -p prost --precise 0.12.3
+cargo update -p prost-types --precise 0.12.3
+cargo update -p prost-build --precise 0.12.3
+cargo update -p prost-derive --precise 0.12.3
+```

crates/cdk-mintd/Cargo.toml

@@ -1,36 +1,36 @@
 [package]
 name = "cdk-mintd"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 description = "CDK mint binary"
 
 [dependencies]
-anyhow.workspace = true
-axum.workspace = true
-cdk = { workspace = true, default-features = false, features = ["mint"] }
-cdk-redb = { workspace = true, default-features = false, features = ["mint"] }
-cdk-sqlite = { workspace = true, default-features = false, features = ["mint"] }
-cdk-cln = { workspace = true, default-features = false }
-cdk-lnbits = { workspace = true, default-features = false }
-cdk-phoenixd = { workspace = true, default-features = false }
-cdk-lnd = { workspace = true, default-features = false }
-cdk-fake-wallet = { workspace = true, default-features = false }
-cdk-strike.workspace = true
-cdk-axum = { workspace = true, default-features = false }
+anyhow = "1"
+axum = "0.6.20"
+cdk = { path = "../cdk", default-features = false, features = ["mint"] }
+cdk-redb = { path = "../cdk-redb", default-features = false, features = ["mint"] }
+cdk-sqlite = { path = "../cdk-sqlite", default-features = false, features = ["mint"] }
+cdk-cln = { path = "../cdk-cln", default-features = false }
+cdk-lnbits = { path = "../cdk-lnbits", default-features = false }
+cdk-phoenixd = { path = "../cdk-phoenixd", default-features = false }
+cdk-lnd = { path = "../cdk-lnd", default-features = false }
+cdk-fake-wallet = { path = "../cdk-fake-wallet", default-features = false }
+cdk-strike = { path = "../cdk-strike" }
+cdk-axum = { path = "../cdk-axum", default-features = false }
 config = { version = "0.13.3", features = ["toml"] }
-clap.workspace = true
-tokio.workspace = true
-tracing.workspace = true
-tracing-subscriber.workspace = true
-futures.workspace = true
-serde.workspace = true
-bip39.workspace = true
-tower-http = { version = "0.5.2", features = ["cors"] }
-lightning-invoice.workspace = true
-home.workspace = true
-url.workspace = true
+clap = { version = "4.4.8", features = ["derive", "env", "default"] }
+tokio = { version = "1", default-features = false }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
+futures = { version = "0.3.28", default-features = false }
+serde = { version = "1", default-features = false, features = ["derive"] }
+bip39 = "2.0"
+tower-http = { version = "0.4.4", features = ["cors"] }
+lightning-invoice = { version = "0.31", features = ["serde"] }
+home = "0.5.5"
+url = "2.3"

crates/cdk-mintd/src/main.rs

@@ -480,10 +480,13 @@ async fn main() -> anyhow::Result<()> {
         });
     }
 
-    let listener =
-        tokio::net::TcpListener::bind(format!("{}:{}", listen_addr, listen_port)).await?;
-
-    axum::serve(listener, mint_service).await?;
+    axum::Server::bind(
+        &format!("{}:{}", listen_addr, listen_port)
+            .as_str()
+            .parse()?,
+    )
+    .serve(mint_service.into_make_service())
+    .await?;
 
     Ok(())
 }

crates/cdk-phoenixd/Cargo.toml

@@ -1,24 +1,23 @@
 [package]
 name = "cdk-phoenixd"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 description = "CDK ln backend for phoenixd"
 
 [dependencies]
-async-trait.workspace = true
-anyhow.workspace = true
-axum.workspace = true
-bitcoin.workspace = true
-cdk = { workspace = true, default-features = false, features = ["mint"] }
-futures.workspace = true
-tokio.workspace = true
-tracing.workspace = true
-thiserror.workspace = true
-phoenixd-rs = "0.2.0"
-# phoenixd-rs = { path = "../../../../phoenixd-rs" }
-uuid.workspace = true
+async-trait = "0.1"
+anyhow = "1"
+axum = "0.6.20"
+bitcoin = { version = "0.30", default-features = false } # lightning-invoice uses v0.30
+cdk = { path = "../cdk", default-features = false, features = ["mint"] }
+futures = { version = "0.3.28", default-features = false }
+tokio = { version = "1", default-features = false }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+thiserror = "1"
+phoenixd-rs = "0.3.0"
+uuid = { version = "1", features = ["v4"] }

crates/cdk-redb/Cargo.toml

@@ -1,13 +1,13 @@
 [package]
 name = "cdk-redb"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
 description = "Redb storage backend for CDK"
-license.workspace = true
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.66.0" # MSRV
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [features]
@@ -16,12 +16,12 @@ mint = ["cdk/mint"]
 wallet = ["cdk/wallet"]
 
 [dependencies]
-async-trait.workspace = true
-cdk = { workspace = true, default-features = false }
+async-trait = "0.1"
+cdk = { path = "../cdk", default-features = false }
 redb = "2.1.0"
-tokio.workspace = true
-thiserror.workspace = true
-tracing.workspace = true
-serde.workspace = true
-serde_json.workspace = true
-lightning-invoice.workspace = true
+tokio = { version = "1", default-features = false }
+thiserror = "1"
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+serde = { version = "1", default-features = false, features = ["derive"] }
+serde_json = "1"
+lightning-invoice = { version = "0.31", features = ["serde"] }

crates/cdk-rexie/Cargo.toml

@@ -1,13 +1,13 @@
 [package]
 name = "cdk-rexie"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
 description = "Indexdb storage backend for CDK in the browser"
-license.workspace = true
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [features]
@@ -16,11 +16,11 @@ wallet = ["cdk/wallet"]
 
 [dependencies]
 rexie = "0.6.0"
-cdk = { workspace = true, default-features = false }
-async-trait.workspace = true
-tokio.workspace = true
-serde.workspace = true
-serde_json.workspace = true
-thiserror.workspace = true
-serde-wasm-bindgen.workspace = true
-web-sys.workspace = true
+cdk = { path = "../cdk", default-features = false }
+async-trait = "0.1.74"
+tokio = { version = "1", default-features = false }
+serde = { version = "1", default-features = false, features = ["derive"] }
+serde_json = "1"
+thiserror = "1"
+serde-wasm-bindgen = "0.6.5"
+web-sys =  { version = "0.3.69", default-features = false, features = ["console"] }

crates/cdk-sqlite/Cargo.toml

@@ -1,13 +1,13 @@
 [package]
 name = "cdk-sqlite"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
 description = "SQLite storage backend for CDK"
-license.workspace = true
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.66.0" # MSRV
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [features]
@@ -16,16 +16,16 @@ mint = ["cdk/mint"]
 wallet = ["cdk/wallet"]
 
 [dependencies]
-async-trait.workspace = true
-cdk = { workspace = true, default-features = false }
-bitcoin.workspace = true
+async-trait = "0.1"
+cdk = { path = "../cdk", default-features = false }
+bitcoin = { version = "0.30", default-features = false } # lightning-invoice uses v0.30
 sqlx = { version = "0.6.3", default-features = false, features = ["runtime-tokio-rustls", "sqlite", "macros", "migrate"] }
-thiserror.workspace = true
-tokio = { workspace = true, features = [
+thiserror = "1"
+tokio = { version = "1", features = [
     "time",
     "macros",
     "sync",
 ] }
-tracing.workspace = true
-serde_json.workspace = true
-lightning-invoice.workspace = true
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+serde_json = "1"
+lightning-invoice = { version = "0.31", features = ["serde"] }

crates/cdk-strike/Cargo.toml

@@ -1,23 +1,23 @@
 [package]
 name = "cdk-strike"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true # MSRV
-license.workspace = true
+license = "MIT"
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
 description = "CDK ln backend for Strike api"
 
 [dependencies]
-async-trait.workspace = true
-anyhow.workspace = true
-axum.workspace = true
-bitcoin.workspace = true
-cdk = { workspace = true, default-features = false, features = ["mint"] }
-futures.workspace = true
-tokio.workspace = true
-tracing.workspace = true
-thiserror.workspace = true
-uuid.workspace = true
-strike-rs = "0.2.3"
+async-trait = "0.1"
+anyhow = "1"
+axum = "0.6.20"
+bitcoin = { version = "0.30", default-features = false } # lightning-invoice uses v0.30
+cdk = { path = "../cdk", default-features = false, features = ["mint"] }
+futures = { version = "0.3.28", default-features = false }
+tokio = { version = "1", default-features = false }
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+thiserror = "1"
+uuid = { version = "1", features = ["v4"] }
+strike-rs = "0.3.0"

crates/cdk/Cargo.toml

@@ -1,32 +1,33 @@
 [package]
 name = "cdk"
-version = { workspace = true }
+version = "0.3.0"
 edition = "2021"
 authors = ["CDK Developers"]
 description = "Core Cashu Development Kit library implementing the Cashu protocol"
-homepage.workspace = true
-repository.workspace = true
-rust-version.workspace = true                                                      # MSRV
-license.workspace = true
+homepage = "https://github.com/cashubtc/cdk"
+repository = "https://github.com/cashubtc/cdk.git"
+rust-version = "1.63.0" # MSRV
+license = "MIT"
 
 
 [features]
 default = ["mint", "wallet"]
 mint = ["dep:futures"]
 wallet = ["dep:reqwest"]
+bench = []
 
 
 [dependencies]
-async-trait.workspace = true
-anyhow.workspace = true
+async-trait = "0.1"
+anyhow = { version = "1.0.43", features = ["backtrace"] }
 base64 = "0.22" # bitcoin uses v0.13 (optional dep)
-bitcoin = { workspace = true, features = [
+bitcoin = { version= "0.30", features = [
     "serde",
     "rand",
     "rand-std",
 ] } # lightning-invoice uses v0.30
 ciborium = { version = "0.2.2", default-features = false, features = ["std"] }
-lightning-invoice.workspace = true
+lightning-invoice = { version = "0.31", features = ["serde"] }
 once_cell = "1.19"
 regex = "1"
 reqwest = { version = "0.12", default-features = false, features = [
@@ -35,17 +36,21 @@ reqwest = { version = "0.12", default-features = false, features = [
     "rustls-tls-native-roots",
     "socks",
 ], optional = true }
-serde.workspace = true
-serde_json.workspace = true
-serde_with = "3.4"
-tracing.workspace = true
-thiserror.workspace = true
-futures = { workspace = true, optional = true }
-url.workspace = true
-uuid.workspace = true
+serde = { version = "1", default-features = false, features = ["derive"] }
+serde_json = "1"
+serde_with = "3.1"
+tracing = { version = "0.1", default-features = false, features = ["attributes", "log"] }
+thiserror = "1"
+futures = { version = "0.3.28", default-features = false, optional = true }
+url = "2.3"
+uuid = { version = "1", features = ["v4"] }
+
+# -Z minimal-versions
+sync_wrapper = "0.1.2"
+bech32 = "0.9.1"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-tokio = { workspace = true, features = [
+tokio = { version = "1", features = [
     "rt-multi-thread",
     "time",
     "macros",
@@ -53,7 +58,7 @@ tokio = { workspace = true, features = [
 ] }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-tokio = { workspace = true, features = ["rt", "macros", "sync", "time"] }
+tokio = { version = "1", features = ["rt", "macros", "sync", "time"] }
 getrandom = { version = "0.2", features = ["js"] }
 instant = { version = "0.1", features = ["wasm-bindgen", "inaccurate"] }
 
@@ -74,14 +79,10 @@ name = "proof-selection"
 required-features = ["wallet"]
 
 [dev-dependencies]
-rand.workspace = true
-bip39.workspace = true
-anyhow.workspace = true
+rand = "0.8.5"
+bip39 = "2.0"
 criterion = "0.5.1"
 
 [[bench]]
 name = "dhke_benchmarks"
 harness = false
-
-[lints.rust]
-unexpected_cfgs = { level = "warn", check-cfg = ['cfg(bench)'] }

crates/cdk/README.md

@@ -81,6 +81,23 @@ async fn main() {
 
 See more examples in the [examples](./examples) folder.
 
+## Minimum Supported Rust Version (MSRV)
+
+The `cdk` library should always compile with any combination of features on Rust **1.63.0**.
+
+To build and test with the MSRV you will need to pin the below dependency versions:
+
+```shell
+cargo update -p half --precise 2.2.1
+cargo update -p tokio --precise 1.38.1
+cargo update -p reqwest --precise 0.12.4
+cargo update -p serde_with --precise 3.1.0
+cargo update -p regex --precise 1.9.6
+cargo update -p backtrace --precise 0.3.58
+# For wasm32-unknown-unknown target 
+cargo update -p bumpalo --precise 3.12.0
+```
+
 
 ## License
 

crates/cdk/src/mint/mod.rs

@@ -660,9 +660,10 @@ impl Mint {
 
         let keysets = self.keysets.read().await;
         let keyset = keysets.get(keyset_id).ok_or(Error::UnknownKeySet)?;
-        let Some(key_pair) = keyset.keys.get(amount) else {
-            // No key for amount
-            return Err(Error::AmountKey);
+
+        let key_pair = match keyset.keys.get(amount) {
+            Some(key_pair) => key_pair,
+            None => return Err(Error::AmountKey),
         };
 
         let c = sign_message(&key_pair.secret_key, blinded_secret)?;
@@ -877,8 +878,10 @@ impl Mint {
         self.ensure_keyset_loaded(&proof.keyset_id).await?;
         let keysets = self.keysets.read().await;
         let keyset = keysets.get(&proof.keyset_id).ok_or(Error::UnknownKeySet)?;
-        let Some(keypair) = keyset.keys.get(&proof.amount) else {
-            return Err(Error::AmountKey);
+
+        let keypair = match keyset.keys.get(&proof.amount) {
+            Some(key_pair) => key_pair,
+            None => return Err(Error::AmountKey),
         };
 
         verify_message(&keypair.secret_key, proof.c, proof.secret.as_bytes())?;

crates/cdk/src/nuts/nut01/public_key.rs

@@ -150,7 +150,7 @@ mod tests {
     }
 }
 
-#[cfg(bench)]
+#[cfg(feature = "bench")]
 mod benches {
     use test::{black_box, Bencher};
 

crates/cdk/src/util/hex.rs

@@ -123,7 +123,7 @@ mod tests {
     }
 }
 
-#[cfg(bench)]
+#[cfg(feature = "bench")]
 mod benches {
     use super::*;
     use crate::test::{black_box, Bencher};