Websockets + TLS for Async-Std / Tokio (#30)
* fix: relax trait bounds on JsonRpcClient * refactor(provider): move http client to separate dir * feat(provider): add initial Websocket support over Stream/Sink + Tungstenite * test(provider): add websocket test * feat(provider): add convenience method using tokio/async-std behind a feature flag * test(provider): add websocket ssl test * feat(provider): add TLS websockets for tokio/async-std * docs(provider): add websocket docs / examples * fix(provider): make tokio an optional dep
This commit is contained in:
Georgios Konstantopoulos
GitHub
parent
ded8f50ef4
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name = "async-trait"
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"async-std",
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"async-tls",
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"futures-util",
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"log",
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"native-tls",
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"tokio",
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"tokio-native-tls",
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"tungstenite",
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]
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|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
|
checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "openssl"
|
||||||
|
version = "0.10.29"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "cee6d85f4cb4c4f59a6a85d5b68a233d280c82e29e822913b9c8b129fbf20bdd"
|
||||||
|
dependencies = [
|
||||||
|
"bitflags",
|
||||||
|
"cfg-if",
|
||||||
|
"foreign-types",
|
||||||
|
"lazy_static",
|
||||||
|
"libc",
|
||||||
|
"openssl-sys",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "openssl-probe"
|
name = "openssl-probe"
|
||||||
version = "0.1.2"
|
version = "0.1.2"
|
||||||
|
|
@ -918,6 +1145,12 @@ dependencies = [
|
||||||
"serde",
|
"serde",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "parking"
|
||||||
|
version = "1.0.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9a7fad362df89617628a7508b3e9d588ade1b0ac31aa25de168193ad999c2dd4"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "parking_lot"
|
name = "parking_lot"
|
||||||
version = "0.10.2"
|
version = "0.10.2"
|
||||||
|
|
@ -980,6 +1213,18 @@ version = "0.1.0"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
|
checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "piper"
|
||||||
|
version = "0.1.3"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "01608bfa680dafb103f9207fa944facf572e4e3e708d10de19a0d0c3d36e5f18"
|
||||||
|
dependencies = [
|
||||||
|
"crossbeam-utils",
|
||||||
|
"futures-io",
|
||||||
|
"futures-sink",
|
||||||
|
"futures-util",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "pkg-config"
|
name = "pkg-config"
|
||||||
version = "0.3.17"
|
version = "0.3.17"
|
||||||
|
|
@ -1106,6 +1351,15 @@ version = "0.6.18"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
|
checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "remove_dir_all"
|
||||||
|
version = "0.5.3"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
|
||||||
|
dependencies = [
|
||||||
|
"winapi 0.3.8",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "reqwest"
|
name = "reqwest"
|
||||||
version = "0.10.6"
|
version = "0.10.6"
|
||||||
|
|
@ -1201,6 +1455,12 @@ dependencies = [
|
||||||
"winapi 0.3.8",
|
"winapi 0.3.8",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "scoped-tls"
|
||||||
|
version = "1.0.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "scopeguard"
|
name = "scopeguard"
|
||||||
version = "1.1.0"
|
version = "1.1.0"
|
||||||
|
|
@ -1217,6 +1477,29 @@ dependencies = [
|
||||||
"untrusted",
|
"untrusted",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "security-framework"
|
||||||
|
version = "0.4.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "64808902d7d99f78eaddd2b4e2509713babc3dc3c85ad6f4c447680f3c01e535"
|
||||||
|
dependencies = [
|
||||||
|
"bitflags",
|
||||||
|
"core-foundation",
|
||||||
|
"core-foundation-sys",
|
||||||
|
"libc",
|
||||||
|
"security-framework-sys",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "security-framework-sys"
|
||||||
|
version = "0.4.3"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "17bf11d99252f512695eb468de5516e5cf75455521e69dfe343f3b74e4748405"
|
||||||
|
dependencies = [
|
||||||
|
"core-foundation-sys",
|
||||||
|
"libc",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "serde"
|
name = "serde"
|
||||||
version = "1.0.112"
|
version = "1.0.112"
|
||||||
|
|
@ -1282,6 +1565,18 @@ dependencies = [
|
||||||
"syn",
|
"syn",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "sha-1"
|
||||||
|
version = "0.8.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "f7d94d0bede923b3cea61f3f1ff57ff8cdfd77b400fb8f9998949e0cf04163df"
|
||||||
|
dependencies = [
|
||||||
|
"block-buffer",
|
||||||
|
"digest",
|
||||||
|
"fake-simd",
|
||||||
|
"opaque-debug",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "sha2"
|
name = "sha2"
|
||||||
version = "0.8.2"
|
version = "0.8.2"
|
||||||
|
|
@ -1306,6 +1601,27 @@ version = "1.4.0"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
|
checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "smol"
|
||||||
|
version = "0.1.15"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "4c3546640e104d1ee544df9c08ac4896d44ef1de89a6d7cc4a3c22f677d5ef38"
|
||||||
|
dependencies = [
|
||||||
|
"async-task",
|
||||||
|
"blocking",
|
||||||
|
"concurrent-queue",
|
||||||
|
"fastrand",
|
||||||
|
"futures-io",
|
||||||
|
"futures-util",
|
||||||
|
"libc",
|
||||||
|
"once_cell",
|
||||||
|
"piper",
|
||||||
|
"scoped-tls",
|
||||||
|
"slab",
|
||||||
|
"socket2",
|
||||||
|
"wepoll-binding",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "socket2"
|
name = "socket2"
|
||||||
version = "0.3.12"
|
version = "0.3.12"
|
||||||
|
|
@ -1353,6 +1669,20 @@ dependencies = [
|
||||||
"unicode-xid",
|
"unicode-xid",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "tempfile"
|
||||||
|
version = "3.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
|
||||||
|
dependencies = [
|
||||||
|
"cfg-if",
|
||||||
|
"libc",
|
||||||
|
"rand",
|
||||||
|
"redox_syscall",
|
||||||
|
"remove_dir_all",
|
||||||
|
"winapi 0.3.8",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "thiserror"
|
name = "thiserror"
|
||||||
version = "1.0.19"
|
version = "1.0.19"
|
||||||
|
|
@ -1439,6 +1769,16 @@ dependencies = [
|
||||||
"syn",
|
"syn",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "tokio-native-tls"
|
||||||
|
version = "0.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "cd608593a919a8e05a7d1fc6df885e40f6a88d3a70a3a7eff23ff27964eda069"
|
||||||
|
dependencies = [
|
||||||
|
"native-tls",
|
||||||
|
"tokio",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "tokio-rustls"
|
name = "tokio-rustls"
|
||||||
version = "0.13.1"
|
version = "0.13.1"
|
||||||
|
|
@ -1477,6 +1817,26 @@ version = "0.2.2"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
|
checksum = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "tungstenite"
|
||||||
|
version = "0.11.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "a5c7d464221cb0b538a1cd12f6d9127ed1e6bb7f3ffca98fb3cd4c6e3af8175c"
|
||||||
|
dependencies = [
|
||||||
|
"base64 0.12.1",
|
||||||
|
"byteorder",
|
||||||
|
"bytes",
|
||||||
|
"http",
|
||||||
|
"httparse",
|
||||||
|
"input_buffer",
|
||||||
|
"log",
|
||||||
|
"native-tls",
|
||||||
|
"rand",
|
||||||
|
"sha-1",
|
||||||
|
"url",
|
||||||
|
"utf-8",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "typenum"
|
name = "typenum"
|
||||||
version = "1.12.0"
|
version = "1.12.0"
|
||||||
|
|
@ -1545,6 +1905,12 @@ dependencies = [
|
||||||
"percent-encoding",
|
"percent-encoding",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "utf-8"
|
||||||
|
version = "0.7.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "vcpkg"
|
name = "vcpkg"
|
||||||
version = "0.2.8"
|
version = "0.2.8"
|
||||||
|
|
@ -1557,6 +1923,12 @@ version = "0.9.2"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
|
checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "waker-fn"
|
||||||
|
version = "1.0.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9571542c2ce85ce642e6b58b3364da2fb53526360dfb7c211add4f5c23105ff7"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "want"
|
name = "want"
|
||||||
version = "0.3.0"
|
version = "0.3.0"
|
||||||
|
|
@ -1670,6 +2042,25 @@ dependencies = [
|
||||||
"webpki",
|
"webpki",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wepoll-binding"
|
||||||
|
version = "2.0.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "374fff4ff9701ff8b6ad0d14bacd3156c44063632d8c136186ff5967d48999a7"
|
||||||
|
dependencies = [
|
||||||
|
"bitflags",
|
||||||
|
"wepoll-sys",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wepoll-sys"
|
||||||
|
version = "2.0.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9082a777aed991f6769e2b654aa0cb29f1c3d615daf009829b07b66c7aff6a24"
|
||||||
|
dependencies = [
|
||||||
|
"cc",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "winapi"
|
name = "winapi"
|
||||||
version = "0.2.8"
|
version = "0.2.8"
|
||||||
|
|
|
||||||
|
|
@ -260,7 +260,10 @@ where
|
||||||
/// Returns a new contract instance at `address`.
|
/// Returns a new contract instance at `address`.
|
||||||
///
|
///
|
||||||
/// Clones `self` internally
|
/// Clones `self` internally
|
||||||
pub fn at<T: Into<Address>>(&self, address: T) -> Self {
|
pub fn at<T: Into<Address>>(&self, address: T) -> Self
|
||||||
|
where
|
||||||
|
P: Clone,
|
||||||
|
{
|
||||||
let mut this = self.clone();
|
let mut this = self.clone();
|
||||||
this.address = address.into();
|
this.address = address.into();
|
||||||
this
|
this
|
||||||
|
|
@ -269,7 +272,10 @@ where
|
||||||
/// Returns a new contract instance using the provided client
|
/// Returns a new contract instance using the provided client
|
||||||
///
|
///
|
||||||
/// Clones `self` internally
|
/// Clones `self` internally
|
||||||
pub fn connect(&self, client: &'a Client<P, S>) -> Self {
|
pub fn connect(&self, client: &'a Client<P, S>) -> Self
|
||||||
|
where
|
||||||
|
P: Clone,
|
||||||
|
{
|
||||||
let mut this = self.clone();
|
let mut this = self.clone();
|
||||||
this.client = client;
|
this.client = client;
|
||||||
this
|
this
|
||||||
|
|
|
||||||
|
|
@ -9,6 +9,10 @@ homepage = "https://docs.rs/ethers"
|
||||||
repository = "https://github.com/gakonst/ethers-rs"
|
repository = "https://github.com/gakonst/ethers-rs"
|
||||||
keywords = ["ethereum", "web3", "celo", "ethers"]
|
keywords = ["ethereum", "web3", "celo", "ethers"]
|
||||||
|
|
||||||
|
[package.metadata.docs.rs]
|
||||||
|
all-features = true
|
||||||
|
rustdoc-args = ["--cfg", "docsrs"]
|
||||||
|
|
||||||
[dependencies]
|
[dependencies]
|
||||||
ethers-core = { version = "0.1.3", path = "../ethers-core" }
|
ethers-core = { version = "0.1.3", path = "../ethers-core" }
|
||||||
|
|
||||||
|
|
@ -23,17 +27,45 @@ url = { version = "2.1.1", default-features = false }
|
||||||
futures-core = { version = "0.3.5", default-features = false }
|
futures-core = { version = "0.3.5", default-features = false }
|
||||||
futures-util = { version = "0.3.5", default-features = false }
|
futures-util = { version = "0.3.5", default-features = false }
|
||||||
pin-project = { version = "0.4.20", default-features = false }
|
pin-project = { version = "0.4.20", default-features = false }
|
||||||
tokio = { version = "0.2.21", default-features = false, features = ["time"] }
|
async-tungstenite = { version = "0.6.0", default-features = false }
|
||||||
|
|
||||||
|
# ws support async-std and tokio runtimes for the convenience methods
|
||||||
|
async-std = { version = "1.6.2", default-features = false, optional = true }
|
||||||
|
tokio = { version = "0.2.21", default-features = false, optional = true }
|
||||||
|
|
||||||
|
# needed for tls
|
||||||
|
real-tokio-native-tls = { package = "tokio-native-tls", version = "0.1.0", optional = true }
|
||||||
|
async-tls = { version = "0.7.0", optional = true }
|
||||||
|
futures-timer = "3.0.2"
|
||||||
|
|
||||||
[dev-dependencies]
|
[dev-dependencies]
|
||||||
ethers = { version = "0.1.3", path = "../ethers" }
|
ethers = { version = "0.1.3", path = "../ethers" }
|
||||||
|
|
||||||
rustc-hex = "2.1.0"
|
rustc-hex = "2.1.0"
|
||||||
tokio = { version = "0.2.21", default-features = false, features = ["rt-core", "macros"] }
|
tokio = { version = "0.2.21", default-features = false, features = ["rt-core", "macros"] }
|
||||||
|
async-std = { version = "1.6.2", default-features = false, features = ["attributes"] }
|
||||||
|
async-tungstenite = { version = "0.6.0", features = ["tokio-runtime"] }
|
||||||
|
serial_test = "0.4.0"
|
||||||
|
|
||||||
[features]
|
[features]
|
||||||
celo = ["ethers-core/celo"]
|
celo = ["ethers-core/celo"]
|
||||||
|
|
||||||
[package.metadata.docs.rs]
|
tokio-runtime = [
|
||||||
all-features = true
|
"tokio",
|
||||||
rustdoc-args = ["--cfg", "docsrs"]
|
"async-tungstenite/tokio-runtime"
|
||||||
|
]
|
||||||
|
tokio-tls = [
|
||||||
|
"tokio-runtime",
|
||||||
|
"async-tungstenite/tokio-native-tls",
|
||||||
|
"real-tokio-native-tls"
|
||||||
|
]
|
||||||
|
|
||||||
|
async-std-runtime = [
|
||||||
|
"async-std",
|
||||||
|
"async-tungstenite/async-std-runtime"
|
||||||
|
]
|
||||||
|
async-std-tls = [
|
||||||
|
"async-std-runtime",
|
||||||
|
"async-tungstenite/async-tls",
|
||||||
|
"async-tls"
|
||||||
|
]
|
||||||
|
|
|
||||||
|
|
@ -28,6 +28,55 @@
|
||||||
//! # }
|
//! # }
|
||||||
//! ```
|
//! ```
|
||||||
//!
|
//!
|
||||||
|
//! # Websockets
|
||||||
|
//!
|
||||||
|
//! The crate has support for WebSockets. If none of the provided async runtime
|
||||||
|
//! features are enabled, you must manually instantiate the WS connection and wrap
|
||||||
|
//! it with with a [`Ws::new`](method@crate::Ws::new) call.
|
||||||
|
//!
|
||||||
|
//! ```ignore
|
||||||
|
//! use ethers::providers::Ws;
|
||||||
|
//!
|
||||||
|
//! let ws = Ws::new(...);
|
||||||
|
//! ```
|
||||||
|
//!
|
||||||
|
//! If you have compiled the library with any of the following features, you may
|
||||||
|
//! instantiate the websocket instance with the `connect` call and your URL:
|
||||||
|
//! - `tokio-runtime`: Uses `tokio` as the runtime
|
||||||
|
//! - `async-std-runtime`: Uses `async-std-runtime`
|
||||||
|
//!
|
||||||
|
//! ```no_run
|
||||||
|
//! # #[cfg(any(
|
||||||
|
//! # feature = "tokio-runtime",
|
||||||
|
//! # feature = "tokio-tls",
|
||||||
|
//! # feature = "async-std-runtime",
|
||||||
|
//! # feature = "async-std-tls",
|
||||||
|
//! # ))]
|
||||||
|
//! # async fn foo() -> Result<(), Box<dyn std::error::Error>> {
|
||||||
|
//! # use ethers::providers::Ws;
|
||||||
|
//! let ws = Ws::connect("ws://localhost:8545").await?;
|
||||||
|
//! # Ok(())
|
||||||
|
//! # }
|
||||||
|
//! ```
|
||||||
|
//!
|
||||||
|
//! TLS support is also provided via the following feature flags:
|
||||||
|
//! - `tokio-tls`
|
||||||
|
//! - `async-tls`
|
||||||
|
//!
|
||||||
|
//! ```no_run
|
||||||
|
//! # #[cfg(any(
|
||||||
|
//! # feature = "tokio-runtime",
|
||||||
|
//! # feature = "tokio-tls",
|
||||||
|
//! # feature = "async-std-runtime",
|
||||||
|
//! # feature = "async-std-tls",
|
||||||
|
//! # ))]
|
||||||
|
//! # async fn foo() -> Result<(), Box<dyn std::error::Error>> {
|
||||||
|
//! # use ethers::providers::Ws;
|
||||||
|
//! let ws = Ws::connect("wss://localhost:8545").await?;
|
||||||
|
//! # Ok(())
|
||||||
|
//! # }
|
||||||
|
//! ```
|
||||||
|
//!
|
||||||
//! # Ethereum Name Service
|
//! # Ethereum Name Service
|
||||||
//!
|
//!
|
||||||
//! The provider may also be used to resolve [Ethereum Name Service](https://ens.domains) (ENS) names
|
//! The provider may also be used to resolve [Ethereum Name Service](https://ens.domains) (ENS) names
|
||||||
|
|
@ -50,8 +99,8 @@
|
||||||
//! # Ok(())
|
//! # Ok(())
|
||||||
//! # }
|
//! # }
|
||||||
//! ```
|
//! ```
|
||||||
mod http;
|
mod transports;
|
||||||
pub use http::Provider as Http;
|
pub use transports::{Http, Ws};
|
||||||
|
|
||||||
mod provider;
|
mod provider;
|
||||||
|
|
||||||
|
|
@ -76,7 +125,7 @@ pub use provider::{Provider, ProviderError};
|
||||||
#[async_trait]
|
#[async_trait]
|
||||||
/// Trait which must be implemented by data transports to be used with the Ethereum
|
/// Trait which must be implemented by data transports to be used with the Ethereum
|
||||||
/// JSON-RPC provider.
|
/// JSON-RPC provider.
|
||||||
pub trait JsonRpcClient: Debug + Clone + Send + Sync {
|
pub trait JsonRpcClient: Send + Sync {
|
||||||
/// A JSON-RPC Error
|
/// A JSON-RPC Error
|
||||||
type Error: Error + Into<ProviderError>;
|
type Error: Error + Into<ProviderError>;
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -1,8 +1,7 @@
|
||||||
use crate::{
|
use crate::{
|
||||||
ens,
|
ens,
|
||||||
http::Provider as HttpProvider,
|
|
||||||
stream::{FilterStream, FilterWatcher},
|
stream::{FilterStream, FilterWatcher},
|
||||||
JsonRpcClient, PendingTransaction,
|
Http as HttpProvider, JsonRpcClient, PendingTransaction,
|
||||||
};
|
};
|
||||||
|
|
||||||
use ethers_core::{
|
use ethers_core::{
|
||||||
|
|
|
||||||
|
|
@ -3,7 +3,8 @@ use crate::ProviderError;
|
||||||
use ethers_core::types::U256;
|
use ethers_core::types::U256;
|
||||||
|
|
||||||
use futures_core::{stream::Stream, TryFuture};
|
use futures_core::{stream::Stream, TryFuture};
|
||||||
use futures_util::StreamExt;
|
use futures_timer::Delay;
|
||||||
|
use futures_util::{stream, FutureExt, StreamExt};
|
||||||
use pin_project::pin_project;
|
use pin_project::pin_project;
|
||||||
use serde::Deserialize;
|
use serde::Deserialize;
|
||||||
use std::{
|
use std::{
|
||||||
|
|
@ -13,7 +14,11 @@ use std::{
|
||||||
time::Duration,
|
time::Duration,
|
||||||
vec::IntoIter,
|
vec::IntoIter,
|
||||||
};
|
};
|
||||||
use tokio::time::{interval, Interval};
|
|
||||||
|
// https://github.com/tomusdrw/rust-web3/blob/befcb2fb8f3ca0a43e3081f68886fa327e64c8e6/src/api/eth_filter.rs#L20
|
||||||
|
fn interval(duration: Duration) -> impl Stream<Item = ()> + Send + Unpin {
|
||||||
|
stream::unfold((), move |_| Delay::new(duration).map(|_| Some(((), ())))).map(drop)
|
||||||
|
}
|
||||||
|
|
||||||
const DEFAULT_POLL_DURATION: Duration = Duration::from_millis(7000);
|
const DEFAULT_POLL_DURATION: Duration = Duration::from_millis(7000);
|
||||||
|
|
||||||
|
|
@ -54,7 +59,7 @@ pub(crate) struct FilterWatcher<F: FutureFactory, R> {
|
||||||
factory: F,
|
factory: F,
|
||||||
|
|
||||||
// The polling interval
|
// The polling interval
|
||||||
interval: Interval,
|
interval: Box<dyn Stream<Item = ()> + Send + Unpin>,
|
||||||
|
|
||||||
state: FilterWatcherState<F::FutureItem, R>,
|
state: FilterWatcherState<F::FutureItem, R>,
|
||||||
}
|
}
|
||||||
|
|
@ -68,7 +73,7 @@ where
|
||||||
pub fn new<T: Into<U256>>(id: T, factory: F) -> Self {
|
pub fn new<T: Into<U256>>(id: T, factory: F) -> Self {
|
||||||
Self {
|
Self {
|
||||||
id: id.into(),
|
id: id.into(),
|
||||||
interval: interval(DEFAULT_POLL_DURATION),
|
interval: Box::new(interval(DEFAULT_POLL_DURATION)),
|
||||||
state: FilterWatcherState::WaitForInterval,
|
state: FilterWatcherState::WaitForInterval,
|
||||||
factory,
|
factory,
|
||||||
}
|
}
|
||||||
|
|
@ -86,7 +91,7 @@ where
|
||||||
}
|
}
|
||||||
|
|
||||||
fn interval<T: Into<u64>>(mut self, duration: T) -> Self {
|
fn interval<T: Into<u64>>(mut self, duration: T) -> Self {
|
||||||
self.interval = interval(Duration::from_millis(duration.into()));
|
self.interval = Box::new(interval(Duration::from_millis(duration.into())));
|
||||||
self
|
self
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
@ -107,21 +112,18 @@ where
|
||||||
*this.state = match this.state {
|
*this.state = match this.state {
|
||||||
FilterWatcherState::WaitForInterval => {
|
FilterWatcherState::WaitForInterval => {
|
||||||
// Wait the polling period
|
// Wait the polling period
|
||||||
let mut interval = Box::pin(this.interval.tick());
|
let _ready = futures_util::ready!(this.interval.poll_next_unpin(cx));
|
||||||
let _ready = futures_util::ready!(interval.as_mut().poll(cx));
|
|
||||||
|
|
||||||
// create a new instance of the future
|
// create a new instance of the future
|
||||||
|
cx.waker().wake_by_ref();
|
||||||
FilterWatcherState::GetFilterChanges(this.factory.as_mut().new())
|
FilterWatcherState::GetFilterChanges(this.factory.as_mut().new())
|
||||||
}
|
}
|
||||||
FilterWatcherState::GetFilterChanges(fut) => {
|
FilterWatcherState::GetFilterChanges(fut) => {
|
||||||
// wait for the future to be ready
|
|
||||||
let mut fut = Box::pin(fut);
|
|
||||||
|
|
||||||
// NOTE: If the provider returns an error, this will return an empty
|
// NOTE: If the provider returns an error, this will return an empty
|
||||||
// vector. Should we make this return a Result instead? Ideally if we're
|
// vector. Should we make this return a Result instead? Ideally if we're
|
||||||
// in a streamed loop we wouldn't want the loop to terminate if an error
|
// in a streamed loop we wouldn't want the loop to terminate if an error
|
||||||
// is encountered (since it might be a temporary error).
|
// is encountered (since it might be a temporary error).
|
||||||
let items: Vec<R> = futures_util::ready!(fut.as_mut().poll(cx)).unwrap_or_default();
|
let items: Vec<R> = futures_util::ready!(fut.poll_unpin(cx)).unwrap_or_default();
|
||||||
FilterWatcherState::NextItem(items.into_iter())
|
FilterWatcherState::NextItem(items.into_iter())
|
||||||
}
|
}
|
||||||
// Consume 1 element from the vector. If more elements are in the vector,
|
// Consume 1 element from the vector. If more elements are in the vector,
|
||||||
|
|
@ -130,7 +132,10 @@ where
|
||||||
// for new logs
|
// for new logs
|
||||||
FilterWatcherState::NextItem(iter) => match iter.next() {
|
FilterWatcherState::NextItem(iter) => match iter.next() {
|
||||||
Some(item) => return Poll::Ready(Some(item)),
|
Some(item) => return Poll::Ready(Some(item)),
|
||||||
None => FilterWatcherState::WaitForInterval,
|
None => {
|
||||||
|
cx.waker().wake_by_ref();
|
||||||
|
FilterWatcherState::WaitForInterval
|
||||||
|
}
|
||||||
},
|
},
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
@ -184,14 +189,16 @@ mod watch {
|
||||||
async fn stream() {
|
async fn stream() {
|
||||||
let factory = || Box::pin(async { Ok::<Vec<u64>, ProviderError>(vec![1, 2, 3]) });
|
let factory = || Box::pin(async { Ok::<Vec<u64>, ProviderError>(vec![1, 2, 3]) });
|
||||||
let filter = FilterWatcher::<_, u64>::new(1, factory);
|
let filter = FilterWatcher::<_, u64>::new(1, factory);
|
||||||
let mut stream = filter.interval(1u64).stream();
|
// stream combinator calls are still doable since FilterStream extends
|
||||||
assert_eq!(stream.next().await.unwrap(), 1);
|
// Stream and StreamExt
|
||||||
|
let mut stream = filter.interval(100u64).stream().map(|x| 2 * x);
|
||||||
assert_eq!(stream.next().await.unwrap(), 2);
|
assert_eq!(stream.next().await.unwrap(), 2);
|
||||||
assert_eq!(stream.next().await.unwrap(), 3);
|
assert_eq!(stream.next().await.unwrap(), 4);
|
||||||
|
assert_eq!(stream.next().await.unwrap(), 6);
|
||||||
// this will poll the factory function again since it consumed the entire
|
// this will poll the factory function again since it consumed the entire
|
||||||
// vector, so it'll wrap around. Realistically, we'd then sleep for a few seconds
|
// vector, so it'll wrap around. Realistically, we'd then sleep for a few seconds
|
||||||
// until new blocks are mined, until the call to the factory returns a non-empty
|
// until new blocks are mined, until the call to the factory returns a non-empty
|
||||||
// vector of logs
|
// vector of logs
|
||||||
assert_eq!(stream.next().await.unwrap(), 1);
|
assert_eq!(stream.next().await.unwrap(), 2);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,85 @@
|
||||||
|
// Code adapted from: https://github.com/althea-net/guac_rs/tree/master/web3/src/jsonrpc
|
||||||
|
use serde::{Deserialize, Serialize};
|
||||||
|
use serde_json::Value;
|
||||||
|
use std::fmt;
|
||||||
|
use thiserror::Error;
|
||||||
|
|
||||||
|
#[derive(Serialize, Deserialize, Debug, Clone, Error)]
|
||||||
|
/// A JSON-RPC 2.0 error
|
||||||
|
pub struct JsonRpcError {
|
||||||
|
/// The error code
|
||||||
|
pub code: i64,
|
||||||
|
/// The error message
|
||||||
|
pub message: String,
|
||||||
|
/// Additional data
|
||||||
|
pub data: Option<Value>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl fmt::Display for JsonRpcError {
|
||||||
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||||
|
write!(
|
||||||
|
f,
|
||||||
|
"(code: {}, message: {}, data: {:?})",
|
||||||
|
self.code, self.message, self.data
|
||||||
|
)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Serialize, Deserialize, Debug)]
|
||||||
|
/// A JSON-RPC request
|
||||||
|
pub struct Request<'a, T> {
|
||||||
|
id: u64,
|
||||||
|
jsonrpc: &'a str,
|
||||||
|
method: &'a str,
|
||||||
|
params: T,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<'a, T> Request<'a, T> {
|
||||||
|
/// Creates a new JSON RPC request
|
||||||
|
pub fn new(id: u64, method: &'a str, params: T) -> Self {
|
||||||
|
Self {
|
||||||
|
id,
|
||||||
|
jsonrpc: "2.0",
|
||||||
|
method,
|
||||||
|
params,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Serialize, Deserialize, Debug, Clone)]
|
||||||
|
pub struct Response<T> {
|
||||||
|
id: u64,
|
||||||
|
jsonrpc: String,
|
||||||
|
#[serde(flatten)]
|
||||||
|
pub data: ResponseData<T>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Serialize, Deserialize, Debug, Clone)]
|
||||||
|
#[serde(untagged)]
|
||||||
|
pub enum ResponseData<R> {
|
||||||
|
Error { error: JsonRpcError },
|
||||||
|
Success { result: R },
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<R> ResponseData<R> {
|
||||||
|
/// Consume response and return value
|
||||||
|
pub fn into_result(self) -> Result<R, JsonRpcError> {
|
||||||
|
match self {
|
||||||
|
ResponseData::Success { result } => Ok(result),
|
||||||
|
ResponseData::Error { error } => Err(error),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[cfg(test)]
|
||||||
|
mod tests {
|
||||||
|
use super::*;
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn response() {
|
||||||
|
let response: Response<u64> =
|
||||||
|
serde_json::from_str(r#"{"jsonrpc": "2.0", "result": 19, "id": 1}"#).unwrap();
|
||||||
|
assert_eq!(response.id, 1);
|
||||||
|
assert_eq!(response.data.into_result().unwrap(), 19);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -4,15 +4,15 @@ use crate::{provider::ProviderError, JsonRpcClient};
|
||||||
use async_trait::async_trait;
|
use async_trait::async_trait;
|
||||||
use reqwest::{Client, Error as ReqwestError};
|
use reqwest::{Client, Error as ReqwestError};
|
||||||
use serde::{Deserialize, Serialize};
|
use serde::{Deserialize, Serialize};
|
||||||
use serde_json::Value;
|
|
||||||
use std::{
|
use std::{
|
||||||
fmt,
|
|
||||||
str::FromStr,
|
str::FromStr,
|
||||||
sync::atomic::{AtomicU64, Ordering},
|
sync::atomic::{AtomicU64, Ordering},
|
||||||
};
|
};
|
||||||
use thiserror::Error;
|
use thiserror::Error;
|
||||||
use url::Url;
|
use url::Url;
|
||||||
|
|
||||||
|
use super::common::{JsonRpcError, Request, Response};
|
||||||
|
|
||||||
/// A low-level JSON-RPC Client over HTTP.
|
/// A low-level JSON-RPC Client over HTTP.
|
||||||
///
|
///
|
||||||
/// # Example
|
/// # Example
|
||||||
|
|
@ -42,7 +42,7 @@ pub enum ClientError {
|
||||||
ReqwestError(#[from] ReqwestError),
|
ReqwestError(#[from] ReqwestError),
|
||||||
#[error(transparent)]
|
#[error(transparent)]
|
||||||
/// Thrown if the response could not be parsed
|
/// Thrown if the response could not be parsed
|
||||||
JsonRpcError(#[from] errors::JsonRpcError),
|
JsonRpcError(#[from] JsonRpcError),
|
||||||
}
|
}
|
||||||
|
|
||||||
impl From<ClientError> for ProviderError {
|
impl From<ClientError> for ProviderError {
|
||||||
|
|
@ -118,88 +118,3 @@ impl Clone for Provider {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
// leak private type w/o exposing it
|
|
||||||
mod errors {
|
|
||||||
use super::*;
|
|
||||||
|
|
||||||
#[derive(Serialize, Deserialize, Debug, Clone, Error)]
|
|
||||||
/// A JSON-RPC 2.0 error
|
|
||||||
pub struct JsonRpcError {
|
|
||||||
/// The error code
|
|
||||||
pub code: i64,
|
|
||||||
/// The error message
|
|
||||||
pub message: String,
|
|
||||||
/// Additional data
|
|
||||||
pub data: Option<Value>,
|
|
||||||
}
|
|
||||||
|
|
||||||
impl fmt::Display for JsonRpcError {
|
|
||||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
||||||
write!(
|
|
||||||
f,
|
|
||||||
"(code: {}, message: {}, data: {:?})",
|
|
||||||
self.code, self.message, self.data
|
|
||||||
)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Serialize, Deserialize, Debug)]
|
|
||||||
/// A JSON-RPC request
|
|
||||||
struct Request<'a, T> {
|
|
||||||
id: u64,
|
|
||||||
jsonrpc: &'a str,
|
|
||||||
method: &'a str,
|
|
||||||
params: T,
|
|
||||||
}
|
|
||||||
|
|
||||||
impl<'a, T> Request<'a, T> {
|
|
||||||
/// Creates a new JSON RPC request
|
|
||||||
fn new(id: u64, method: &'a str, params: T) -> Self {
|
|
||||||
Self {
|
|
||||||
id,
|
|
||||||
jsonrpc: "2.0",
|
|
||||||
method,
|
|
||||||
params,
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Serialize, Deserialize, Debug, Clone)]
|
|
||||||
struct Response<T> {
|
|
||||||
id: u64,
|
|
||||||
jsonrpc: String,
|
|
||||||
#[serde(flatten)]
|
|
||||||
data: ResponseData<T>,
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Serialize, Deserialize, Debug, Clone)]
|
|
||||||
#[serde(untagged)]
|
|
||||||
enum ResponseData<R> {
|
|
||||||
Error { error: errors::JsonRpcError },
|
|
||||||
Success { result: R },
|
|
||||||
}
|
|
||||||
|
|
||||||
impl<R> ResponseData<R> {
|
|
||||||
/// Consume response and return value
|
|
||||||
fn into_result(self) -> Result<R, errors::JsonRpcError> {
|
|
||||||
match self {
|
|
||||||
ResponseData::Success { result } => Ok(result),
|
|
||||||
ResponseData::Error { error } => Err(error),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#[cfg(test)]
|
|
||||||
mod tests {
|
|
||||||
use super::*;
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn response() {
|
|
||||||
let response: Response<u64> =
|
|
||||||
serde_json::from_str(r#"{"jsonrpc": "2.0", "result": 19, "id": 1}"#).unwrap();
|
|
||||||
assert_eq!(response.id, 1);
|
|
||||||
assert_eq!(response.data.into_result().unwrap(), 19);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
@ -0,0 +1,7 @@
|
||||||
|
mod common;
|
||||||
|
|
||||||
|
mod http;
|
||||||
|
pub use http::Provider as Http;
|
||||||
|
|
||||||
|
mod ws;
|
||||||
|
pub use ws::Provider as Ws;
|
||||||
|
|
@ -0,0 +1,194 @@
|
||||||
|
use crate::{provider::ProviderError, JsonRpcClient};
|
||||||
|
|
||||||
|
use async_trait::async_trait;
|
||||||
|
use async_tungstenite::tungstenite::{self, protocol::Message};
|
||||||
|
use futures_util::{
|
||||||
|
lock::Mutex,
|
||||||
|
sink::{Sink, SinkExt},
|
||||||
|
stream::{Stream, StreamExt},
|
||||||
|
};
|
||||||
|
use serde::{Deserialize, Serialize};
|
||||||
|
use std::fmt::Debug;
|
||||||
|
use std::sync::atomic::{AtomicU64, Ordering};
|
||||||
|
use thiserror::Error;
|
||||||
|
|
||||||
|
use super::common::{JsonRpcError, Request, ResponseData};
|
||||||
|
|
||||||
|
// Convenience methods for connecting with async-std/tokio:
|
||||||
|
|
||||||
|
#[cfg(any(feature = "tokio-runtime", feature = "async-std-runtime"))]
|
||||||
|
use async_tungstenite::WebSocketStream;
|
||||||
|
|
||||||
|
// connect_async
|
||||||
|
#[cfg(all(feature = "async-std-runtime", not(feature = "tokio-runtime")))]
|
||||||
|
use async_tungstenite::async_std::connect_async;
|
||||||
|
#[cfg(feature = "tokio-runtime")]
|
||||||
|
use async_tungstenite::tokio::{connect_async, TokioAdapter};
|
||||||
|
|
||||||
|
#[cfg(feature = "tokio-runtime")]
|
||||||
|
type TcpStream = TokioAdapter<tokio::net::TcpStream>;
|
||||||
|
#[cfg(all(feature = "async-std-runtime", not(feature = "tokio-runtime")))]
|
||||||
|
type TcpStream = async_std::net::TcpStream;
|
||||||
|
|
||||||
|
// If there is no TLS, just use the TCP Stream
|
||||||
|
#[cfg(all(feature = "tokio-runtime", not(feature = "tokio-tls")))]
|
||||||
|
pub type MaybeTlsStream = TcpStream;
|
||||||
|
#[cfg(all(feature = "async-std-runtime", not(feature = "async-std-tls")))]
|
||||||
|
pub type MaybeTlsStream = TcpStream;
|
||||||
|
|
||||||
|
// Use either
|
||||||
|
#[cfg(feature = "tokio-tls")]
|
||||||
|
type TlsStream<S> = real_tokio_native_tls::TlsStream<S>;
|
||||||
|
#[cfg(all(feature = "async-std-tls", not(feature = "tokio-tls")))]
|
||||||
|
type TlsStream<S> = async_tls::client::TlsStream<S>;
|
||||||
|
|
||||||
|
#[cfg(any(feature = "tokio-tls", feature = "async-std-tls"))]
|
||||||
|
pub use async_tungstenite::stream::Stream as StreamSwitcher;
|
||||||
|
#[cfg(feature = "tokio-tls")]
|
||||||
|
pub type MaybeTlsStream =
|
||||||
|
StreamSwitcher<TcpStream, TokioAdapter<TlsStream<TokioAdapter<TcpStream>>>>;
|
||||||
|
#[cfg(all(feature = "async-std-tls", not(feature = "tokio-tls")))]
|
||||||
|
pub type MaybeTlsStream = StreamSwitcher<TcpStream, TlsStream<TcpStream>>;
|
||||||
|
|
||||||
|
/// A JSON-RPC Client over Websockets.
|
||||||
|
///
|
||||||
|
/// If the library is not compiled with any runtime support, then you will have
|
||||||
|
/// to manually instantiate a websocket connection and call `Provider::new` on it.
|
||||||
|
///
|
||||||
|
/// ```ignore
|
||||||
|
/// use ethers::providers::Ws;
|
||||||
|
///
|
||||||
|
/// let ws = Ws::new(...)
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// If you have compiled the library with any of the following features, you may
|
||||||
|
/// instantiate the websocket instance with the `connect` call and your URL:
|
||||||
|
/// - `tokio-runtime`: Uses `tokio` as the runtime
|
||||||
|
/// - `tokio-tls`: Same as `tokio-runtime` but with TLS support
|
||||||
|
/// - `async-std-runtime`: Uses `async-std-runtime`
|
||||||
|
/// - `async-tls`: Same as `async-std-runtime` but with TLS support
|
||||||
|
///
|
||||||
|
/// ```no_run
|
||||||
|
/// # #[cfg(any(
|
||||||
|
/// # feature = "tokio-runtime",
|
||||||
|
/// # feature = "tokio-tls",
|
||||||
|
/// # feature = "async-std-runtime",
|
||||||
|
/// # feature = "async-std-tls",
|
||||||
|
/// # ))]
|
||||||
|
/// # async fn foo() -> Result<(), Box<dyn std::error::Error>> {
|
||||||
|
/// use ethers::providers::Ws;
|
||||||
|
///
|
||||||
|
/// let ws = Ws::connect("ws://localhost:8545").await?;
|
||||||
|
///
|
||||||
|
/// // If built with TLS support (otherwise will get a "TLS Support not compiled in" error)
|
||||||
|
/// let ws = Ws::connect("wss://localhost:8545").await?;
|
||||||
|
/// # Ok(())
|
||||||
|
/// # }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// This feature is built using [`async-tungstenite`](https://docs.rs/async-tungstenite). If you need other runtimes,
|
||||||
|
/// consider importing `async-tungstenite` with the [corresponding feature
|
||||||
|
/// flag](https://github.com/sdroege/async-tungstenite/blob/master/Cargo.toml#L15-L22)
|
||||||
|
/// for your runtime.
|
||||||
|
pub struct Provider<S> {
|
||||||
|
id: AtomicU64,
|
||||||
|
ws: Mutex<S>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[cfg(any(feature = "tokio-runtime", feature = "async-std-runtime"))]
|
||||||
|
impl Provider<WebSocketStream<MaybeTlsStream>> {
|
||||||
|
/// Initializes a new WebSocket Client.
|
||||||
|
/// separately.
|
||||||
|
pub async fn connect(
|
||||||
|
url: impl tungstenite::client::IntoClientRequest + Unpin,
|
||||||
|
) -> Result<Self, tungstenite::Error> {
|
||||||
|
let (ws, _) = connect_async(url).await?;
|
||||||
|
Ok(Self::new(ws))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<S> Provider<S>
|
||||||
|
where
|
||||||
|
S: Send
|
||||||
|
+ Sync
|
||||||
|
+ Stream<Item = Result<Message, tungstenite::Error>>
|
||||||
|
+ Sink<Message, Error = tungstenite::Error>
|
||||||
|
+ Unpin,
|
||||||
|
{
|
||||||
|
/// Initializes a new WebSocket Client. The websocket connection must be initiated
|
||||||
|
/// separately.
|
||||||
|
pub fn new(ws: S) -> Self {
|
||||||
|
Self {
|
||||||
|
id: AtomicU64::new(0),
|
||||||
|
ws: Mutex::new(ws),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Error, Debug)]
|
||||||
|
/// Error thrown when sending a WS message
|
||||||
|
pub enum ClientError {
|
||||||
|
/// Thrown if deserialization failed
|
||||||
|
#[error(transparent)]
|
||||||
|
JsonError(#[from] serde_json::Error),
|
||||||
|
|
||||||
|
#[error(transparent)]
|
||||||
|
/// Thrown if the response could not be parsed
|
||||||
|
JsonRpcError(#[from] JsonRpcError),
|
||||||
|
|
||||||
|
/// Thrown if the websocket didn't respond to our message
|
||||||
|
#[error("Websocket connection did not respond with data")]
|
||||||
|
NoResponse,
|
||||||
|
|
||||||
|
/// Thrown if there's an error over the WS connection
|
||||||
|
#[error(transparent)]
|
||||||
|
TungsteniteError(#[from] tungstenite::Error),
|
||||||
|
}
|
||||||
|
|
||||||
|
impl From<ClientError> for ProviderError {
|
||||||
|
fn from(src: ClientError) -> Self {
|
||||||
|
ProviderError::JsonRpcClientError(Box::new(src))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
|
impl<S> JsonRpcClient for Provider<S>
|
||||||
|
where
|
||||||
|
S: Send
|
||||||
|
+ Sync
|
||||||
|
+ Stream<Item = Result<Message, tungstenite::Error>>
|
||||||
|
+ Sink<Message, Error = tungstenite::Error>
|
||||||
|
+ Unpin,
|
||||||
|
{
|
||||||
|
type Error = ClientError;
|
||||||
|
|
||||||
|
/// Sends a POST request with the provided method and the params serialized as JSON
|
||||||
|
/// over WebSockets
|
||||||
|
async fn request<T: Serialize + Send + Sync, R: for<'a> Deserialize<'a>>(
|
||||||
|
&self,
|
||||||
|
method: &str,
|
||||||
|
params: T,
|
||||||
|
) -> Result<R, ClientError> {
|
||||||
|
// we get a lock on the websocket to avoid race conditions with multiple borrows
|
||||||
|
let mut lock = self.ws.lock().await;
|
||||||
|
|
||||||
|
let next_id = self.id.load(Ordering::SeqCst) + 1;
|
||||||
|
self.id.store(next_id, Ordering::SeqCst);
|
||||||
|
|
||||||
|
// send the message
|
||||||
|
let payload = serde_json::to_string(&Request::new(next_id, method, params))?;
|
||||||
|
lock.send(Message::text(payload)).await?;
|
||||||
|
|
||||||
|
// get the response bytes
|
||||||
|
let resp = lock.next().await.ok_or(ClientError::NoResponse)??;
|
||||||
|
|
||||||
|
let data: ResponseData<R> = match resp {
|
||||||
|
Message::Text(inner) => serde_json::from_str(&inner)?,
|
||||||
|
Message::Binary(inner) => serde_json::from_slice(&inner)?,
|
||||||
|
// TODO: Should we do something if we receive a Ping, Pong or Close?
|
||||||
|
_ => return Err(ClientError::NoResponse),
|
||||||
|
};
|
||||||
|
|
||||||
|
Ok(data.into_result()?)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -1,14 +1,68 @@
|
||||||
|
#![allow(unused_braces)]
|
||||||
use ethers::providers::{Http, Provider};
|
use ethers::providers::{Http, Provider};
|
||||||
use std::convert::TryFrom;
|
use std::convert::TryFrom;
|
||||||
|
|
||||||
#[tokio::test]
|
|
||||||
#[cfg(not(feature = "celo"))]
|
#[cfg(not(feature = "celo"))]
|
||||||
async fn pending_txs_with_confirmations_ganache() {
|
mod eth_tests {
|
||||||
|
use super::*;
|
||||||
use ethers::{
|
use ethers::{
|
||||||
types::TransactionRequest,
|
types::TransactionRequest,
|
||||||
utils::{parse_ether, Ganache},
|
utils::{parse_ether, Ganache},
|
||||||
};
|
};
|
||||||
|
use serial_test::serial;
|
||||||
|
|
||||||
|
// Without TLS this would error with "TLS Support not compiled in"
|
||||||
|
#[test]
|
||||||
|
#[cfg(any(feature = "async-std-tls", feature = "tokio-tls"))]
|
||||||
|
fn ssl_websocket() {
|
||||||
|
// this is extremely ugly but I couldn't figure out a better way of having
|
||||||
|
// a shared async test for both runtimes
|
||||||
|
#[cfg(feature = "async-std-tls")]
|
||||||
|
let block_on = async_std::task::block_on;
|
||||||
|
#[cfg(feature = "tokio-tls")]
|
||||||
|
let mut runtime = tokio::runtime::Runtime::new().unwrap();
|
||||||
|
#[cfg(feature = "tokio-tls")]
|
||||||
|
let mut block_on = |x| runtime.block_on(x);
|
||||||
|
|
||||||
|
use ethers::providers::Ws;
|
||||||
|
block_on(async move {
|
||||||
|
let ws = Ws::connect("wss://rinkeby.infura.io/ws/v3/c60b0bb42f8a4c6481ecd229eddaca27")
|
||||||
|
.await
|
||||||
|
.unwrap();
|
||||||
|
let provider = Provider::new(ws);
|
||||||
|
let _number = provider.get_block_number().await.unwrap();
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
#[tokio::test]
|
||||||
|
#[serial]
|
||||||
|
#[cfg(feature = "tokio-runtime")]
|
||||||
|
async fn watch_blocks_websocket() {
|
||||||
|
use ethers::{
|
||||||
|
providers::{FilterStream, StreamExt, Ws},
|
||||||
|
types::H256,
|
||||||
|
};
|
||||||
|
|
||||||
|
let _ganache = Ganache::new().block_time(2u64).spawn();
|
||||||
|
let (ws, _) = async_tungstenite::tokio::connect_async("ws://localhost:8545")
|
||||||
|
.await
|
||||||
|
.unwrap();
|
||||||
|
let provider = Provider::new(Ws::new(ws));
|
||||||
|
|
||||||
|
let stream = provider
|
||||||
|
.watch_blocks()
|
||||||
|
.await
|
||||||
|
.unwrap()
|
||||||
|
.interval(2000u64)
|
||||||
|
.stream();
|
||||||
|
|
||||||
|
let _blocks = stream.take(3usize).collect::<Vec<H256>>().await;
|
||||||
|
let _number = provider.get_block_number().await.unwrap();
|
||||||
|
}
|
||||||
|
|
||||||
|
#[tokio::test]
|
||||||
|
#[serial]
|
||||||
|
async fn pending_txs_with_confirmations_ganache() {
|
||||||
let _ganache = Ganache::new().block_time(2u64).spawn();
|
let _ganache = Ganache::new().block_time(2u64).spawn();
|
||||||
let provider = Provider::<Http>::try_from("http://localhost:8545").unwrap();
|
let provider = Provider::<Http>::try_from("http://localhost:8545").unwrap();
|
||||||
let accounts = provider.get_accounts().await.unwrap();
|
let accounts = provider.get_accounts().await.unwrap();
|
||||||
|
|
@ -20,6 +74,7 @@ async fn pending_txs_with_confirmations_ganache() {
|
||||||
|
|
||||||
// got the correct receipt
|
// got the correct receipt
|
||||||
assert_eq!(receipt.transaction_hash, hash);
|
assert_eq!(receipt.transaction_hash, hash);
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
#[cfg(feature = "celo")]
|
#[cfg(feature = "celo")]
|
||||||
|
|
|
||||||
|
|
@ -183,7 +183,10 @@ where
|
||||||
/// calls.
|
/// calls.
|
||||||
///
|
///
|
||||||
/// Clones internally.
|
/// Clones internally.
|
||||||
pub fn with_signer(&self, signer: S) -> Self {
|
pub fn with_signer(&self, signer: S) -> Self
|
||||||
|
where
|
||||||
|
P: Clone,
|
||||||
|
{
|
||||||
let mut this = self.clone();
|
let mut this = self.clone();
|
||||||
this.signer = signer;
|
this.signer = signer;
|
||||||
this
|
this
|
||||||
|
|
@ -193,7 +196,10 @@ where
|
||||||
/// calls.
|
/// calls.
|
||||||
///
|
///
|
||||||
/// Clones internally.
|
/// Clones internally.
|
||||||
pub fn with_provider(&self, provider: Provider<P>) -> Self {
|
pub fn with_provider(&self, provider: Provider<P>) -> Self
|
||||||
|
where
|
||||||
|
P: Clone,
|
||||||
|
{
|
||||||
let mut this = self.clone();
|
let mut this = self.clone();
|
||||||
this.provider = provider;
|
this.provider = provider;
|
||||||
this
|
this
|
||||||
|
|
|
||||||
|
|
@ -49,6 +49,7 @@ ethers-signers = { version = "0.1.3", path = "../ethers-signers", optional = tru
|
||||||
|
|
||||||
[dev-dependencies]
|
[dev-dependencies]
|
||||||
ethers-contract = { version = "0.1.3", path = "../ethers-contract", features = ["abigen"] }
|
ethers-contract = { version = "0.1.3", path = "../ethers-contract", features = ["abigen"] }
|
||||||
|
ethers-providers = { version = "0.1.3", path = "../ethers-providers", features = ["tokio-runtime"] }
|
||||||
|
|
||||||
anyhow = "1.0.31"
|
anyhow = "1.0.31"
|
||||||
rand = "0.7"
|
rand = "0.7"
|
||||||
|
|
|
||||||
|
|
@ -1,9 +1,9 @@
|
||||||
use ethers::prelude::*;
|
use ethers::prelude::*;
|
||||||
use std::convert::TryFrom;
|
|
||||||
|
|
||||||
#[tokio::main]
|
#[tokio::main]
|
||||||
async fn main() -> anyhow::Result<()> {
|
async fn main() -> anyhow::Result<()> {
|
||||||
let provider = Provider::<Http>::try_from("http://localhost:8545")?;
|
let ws = Ws::connect("ws://localhost:8546").await?;
|
||||||
|
let provider = Provider::new(ws);
|
||||||
let mut stream = provider.watch_blocks().await?.interval(2000u64).stream();
|
let mut stream = provider.watch_blocks().await?.interval(2000u64).stream();
|
||||||
while let Some(block) = stream.next().await {
|
while let Some(block) = stream.next().await {
|
||||||
dbg!(block);
|
dbg!(block);
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue