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Experimental extractors, middleware, and other extras for possible inclusion in Actix Web.

License: Apache License 2.0

Rust 98.53% Shell 0.31% HTML 0.50% Nix 0.26% Just 0.40%

rust actix actix-web experimental

actix-web-lab's Introduction

actix-web-lab

Experimental extractors, middleware, and other extras for possible inclusion in Actix Web.

Features

Feature Voting →

Responders

Csv: efficient CSV streaming (docs)
NdJson: efficient NDJSON streaming (docs)
DisplayStream: efficient line-by-line Display streaming (docs)
Html: basic string wrapper that responds with HTML Content-Type (docs)
Cbor: basic CBOR format wrapper with appropriate Content-Type (docs)
MessagePack: basic MessagePack format wrapper with appropriate Content-Type (docs)
Sse: semantic server-sent events (SSE) responder with a channel-like interface (docs)

Middleware

from_fn: use an async function as a middleware (docs)
map_response: use an async function to modify the response (docs)
map_response_body: use an async function to modify the response body (docs)
RedirectHttps: middleware to redirect traffic to HTTPS if connection is insecure with optional HSTS (docs)
redirect_to_www: function middleware to redirect traffic to www. if not already there (docs)
redirect_to_non_www: function middleware to redirect traffic to www. if not already there (docs)
ErrorHandlers: alternative error handler middleware with simpler interface (docs)
NormalizePath: alternative path normalizing middleware with redirect option (docs)
CatchPanic: catch panics in wrapped handlers and middleware, returning empty 500 responses (docs)
PanicReporter: catch panics in wrapped handlers and middleware, returning empty 500 responses (docs)
LoadShed: sheds load when the inner service isn't ready (docs)

Extractors

LazyData: app data/state initialized on first use (docs)
SwapData: app data/state that can be replaced at runtime (alternative to Data<RwLock<T>>) (docs)
LocalData: app data/state that uses an Rc internally, avoiding atomic overhead (alternative to Data<RwLock<T>>) (docs)
ThinData: app data/state for cheaply-cloned types (docs)
Json: simplified JSON extractor with const-generic payload limits (docs)
Path: simplified path parameter extractor that supports destructuring (docs)
Query: simplified query-string extractor that can also collect multi-value items (docs)
RequestSignature: wraps an extractor and calculates a request signature alongside (docs)
BodyLimit: wraps a body extractor and prevents DoS attacks by limiting payload size (docs)
Bytes: simplified Bytes extractor with const-generic limits (docs)
UrlEncodedForm: URL-encoded form extractor with const-generic payload size limit (docs)
Host: Host information taken from either URL or Host header (docs)

Macros

FromRequest: Derive macro to implement FromRequest on an aggregate struct of other extractors (docs)

Headers

StrictTransportSecurity: Strict-Transport-Security (HSTS) configuration (docs)
CacheControl: Cache-Control typed header with support for modern directives (docs)
ContentLength: Content-Length typed header (docs)
Forwarded: Proxy and original client info (docs)

Body Types

channel: a simple channel-like body type with a sender side that can be used from another thread (docs)
writer: a simple AsyncWrite body type (docs)

Services

Redirect: (graduated 🎉) simple redirects (docs)
spa: Easy Single-page Application (SPA) service (docs)

Route Guards

Acceptable: (graduated 🎉) verifies that an Accept header is present and it contains a compatible MIME type (docs)

Test Utilities

test_request: construct TestRequest using an HTTP-like DSL (docs)
assert_response_matches: quickly write tests that check various parts of a ServiceResponse (docs)

Other Utilities

fork_request_payload: effectively clone a request payload (docs)

Things To Know About This Crate

It will never reach v1.0.
Minimum Supported Rust Version (MSRV) is latest stable at the time of each release.
Breaking changes will likely happen on most 0.x version bumps.
Documentation might be limited for some items.
Items that graduate to Actix Web crate will be marked deprecated here for a reasonable amount of time so you can migrate.
Migrating will often be as easy as dropping the _lab suffix from imports.

actix-web-lab's People

Contributors

Stargazers

Watchers

Forkers

aliemjay thecre8tor conradludgate kirinse janpauldahlke darrenbaldwin07 blakejakopovic cjrh midnightexigent payload ggueyraud jayvdb vojtechkral selfing83

actix-web-lab's Issues

[poll] `Redirect` service

React to this issue with a ":+1:" to vote for this feature. Highest voted features will graduate to Actix Web sooner.

[poll] `Acceptable` route guard

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[poll] `LoadShed` middleware

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[poll] `from_fn` middleware

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[poll] `ReconstructedPath` extractor

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[poll] `Bytes` extractor

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[poll] `BodyHash` extractor

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[poll] `PanicReporter` middleware

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[poll] `SwapData` extractor

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[poll] `MessagePack` responder

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[poll] `LocalData` extractor

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[poll] Improved `CacheControl` header

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[poll] `BodyLimit` extractor

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[poll] `test_request` helper macro

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[poll] Improved `Query` extractor

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[poll] `writer` body type

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[poll] `echo_path_service` testing service

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[poll] `redirect_to_www` middleware

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[poll] `map_response_body` midleware

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[poll] `Host` extractor

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[poll] `Html` responder

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[poll] `RequestSignature` extractor

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[poll] `redirect_to_non_www` fn middleware

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[poll] `fork_request_payload` util

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[poll] `Forwarded` header

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[poll] Server-sent events (SSE) types

Includes Sse & SseSender.

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[poll] `spa` service

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[poll] `Csv` responder

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[poll] `FromRequest` derive macro

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[poll] `ContentLength` header

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Dynamic redirecting

The docs show that you can do this

// redirects "/oh/hi/mark" to "/oh/bye/mark"
Redirect::new("/oh/hi/mark", "../../bye/mark");

A nice thing to be able to do would be would be more dynamic redirects.
Examples:

// redirects "/redirect/me/to/here" to "https://hello.com/me/to/here"
Redirect::new("/redirect", "https://hello.com/../../..")

// redirects "/redirectme/tohere" to https://hello.com/tohere"
Redirect::new("/redirectme", "https://hello.com/..")

// redirects /redirect/me/to/here to "https://hello.com/redirect/me/to/here"
Redirect::new("/redirectme", "https://hello.com/**")

[poll] `LazyData` extractor

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[poll] `Cbor` responder

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[poll] `channel` body type

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[poll] `ThinData` extractor

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[poll] `map_response` midleware

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[poll] `RedirectHttps` middleware

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[poll] `StrictTransportSecurity` header

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[poll] `NdJson` responder

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Unable to update response header within wrap_fn

I use this project to append csrf cookie in my response header within the middleware function, started from the example, but I found the function would fail to update the header, the code as below:

pub async fn append_csrf_token(req: ServiceRequest,  next: Next<impl MessageBody + 'static>) -> core::result::Result<ServiceResponse<impl MessageBody + 'static>, actix_web::error::Error> {
        let mut response = next.call(req).await?;
        let http_req = response.request();
        if let Ok(identity) = Identity::from_request(&http_req, &mut Payload::None).into_inner() {
             if let Ok(user_json) = identity.id() {
                 if let Ok(user) = serde_json::from_str::<UserIdentity>(&user_json) {
                     //generate csrf token based on user token
                     if let Some(protect_key) = http_req.app_data::<web::Data<SecVec<u8>>>() {
                         if let Ok(protect_key_array) = protect_key.clone().unsecure().try_into() {
                             if let Ok(csrf_token) = user.generate_new_csrf_cookie(protect_key_array, 600) {
                                 let http_header = response.headers_mut();
                                 //code crashed here.
                                 http_header.insert(
                                     HeaderName::from_static("XSRF-TOKEN"),
                                     HeaderValue::from_str(&csrf_token).unwrap(),
                                 );
                             } else {
                                 warn!("failed to generate csrf token in middleware")
                             }
                         }
                     }
                 }
             }
        }
        Ok(response)
    }

and the stack information

[2023-07-05T12:06:49Z INFO  sqlx::query] SELECT * FROM user …; rows affected: 0, rows returned: 1, elapsed: 6.509ms
    
    SELECT
      *
    FROM
      user
    WHERE
      email = ?
    
thread 'actix-server worker 2' panicked at 'index out of bounds: the len is 0 but the index is 0', /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/http-0.2.9/src/header/name.rs:1270:13
stack backtrace:
   0:        0x111515d73 - std::backtrace_rs::backtrace::libunwind::trace::hae6efe039b3fd59a
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:        0x111515d73 - std::backtrace_rs::backtrace::trace_unsynchronized::hdcd38835c997b122
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:        0x111515d73 - std::sys_common::backtrace::_print_fmt::hc4a546b1903dc7d6
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/sys_common/backtrace.rs:65:5
   3:        0x111515d73 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfe6f44aff11c179e
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/sys_common/backtrace.rs:44:22
   4:        0x11153586b - core::fmt::rt::Argument::fmt::hfa69b0060701a7ed
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/fmt/rt.rs:138:9
   5:        0x11153586b - core::fmt::write::h3bc6e7c5ab093964
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/fmt/mod.rs:1094:21
   6:        0x111511fa8 - std::io::Write::write_fmt::ha0b68ab4c15f0bc6
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/io/mod.rs:1712:15
   7:        0x111515b6a - std::sys_common::backtrace::_print::h796f55fec72c897e
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/sys_common/backtrace.rs:47:5
   8:        0x111515b6a - std::sys_common::backtrace::print::h18ece7990e53029f
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/sys_common/backtrace.rs:34:9
   9:        0x111516fe5 - std::panicking::default_hook::{{closure}}::h55ac5a157221e609
  10:        0x111516def - std::panicking::default_hook::hac2381dcb7cdb29f
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panicking.rs:288:9
  11:        0x11151746e - std::panicking::rust_panic_with_hook::h11885c0070d88355
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panicking.rs:691:13
  12:        0x111517393 - std::panicking::begin_panic_handler::{{closure}}::he04c85739230a2b0
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panicking.rs:582:13
  13:        0x111516189 - std::sys_common::backtrace::__rust_end_short_backtrace::h0cf32c4b3dbfd4f6
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/sys_common/backtrace.rs:150:18
  14:        0x1115170dd - rust_begin_unwind
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panicking.rs:578:5
  15:        0x111569063 - core::panicking::panic_fmt::h5f1768fb380922f0
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/panicking.rs:67:14
  16:        0x1115691b6 - core::panicking::panic_bounds_check::h2cb4edcf4f6d0db4
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/panicking.rs:162:5
  17:        0x110d4b5bd - http::header::name::HeaderName::from_static::h1104acea9f713b28
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/http-0.2.9/src/header/name.rs:1270:13
  18:        0x10fd0f51f - control_server::presentation::handler::control::model::user::dto::UserIdentity::append_csrf_token::{{closure}}::hd4e9b67ed30dde00
                               at /Users/tommylike/Work/codes/rust-projects/gitee-signatrust/signatrust/src/presentation/handler/control/model/user/dto.rs:86:38
  19:        0x10fe669ff - <actix_session::middleware::InnerSessionMiddleware<S,Store> as actix_service::Service<actix_web::service::ServiceRequest>>::call::{{closure}}::hdbf678bc122ccaac
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/actix-session-0.7.2/src/middleware.rs:223:45
  20:        0x10fb51682 - <core::pin::Pin<P> as core::future::future::Future>::poll::h4f51628a30b3d23e
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/future/future.rs:125:9
  21:        0x10fc04e13 - <actix_service::map_err::MapErrFuture<A,Req,F,E> as core::future::future::Future>::poll::h2bf74de4f71847ef
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/actix-service-2.0.2/src/map_err.rs:99:9
  22:        0x10fe74abd - <actix_http::h2::dispatcher::Dispatcher<T,S,B,X,U> as core::future::future::Future>::poll::{{closure}}::h08950f7e295ff158
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/actix-http-3.3.0/src/h2/dispatcher.rs:138:45
  23:        0x10fc99617 - tokio::runtime::task::core::Core<T,S>::poll::{{closure}}::h8eb2019c5590e0b7
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/core.rs:223:17
  24:        0x10fe1d691 - tokio::loom::std::unsafe_cell::UnsafeCell<T>::with_mut::h12a4b4a9e3e100d4
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/loom/std/unsafe_cell.rs:14:9
  25:        0x10fc978d7 - tokio::runtime::task::core::Core<T,S>::poll::h2c1ed7c0bc211f33
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/core.rs:212:13
  26:        0x10fead3fd - tokio::runtime::task::harness::poll_future::{{closure}}::he28bad7421f2e372
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/harness.rs:476:19
  27:        0x10fd2b765 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h16f6f95a5ae1c1d6
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/panic/unwind_safe.rs:271:9
  28:        0x10fc34d37 - std::panicking::try::do_call::h5cde804d6b409b70
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panicking.rs:485:40
  29:        0x10fc39f4d - ___rust_try
  30:        0x10fc31bff - std::panicking::try::h75a1346babc9acfa
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panicking.rs:449:19
  31:        0x10fb80b0c - std::panic::catch_unwind::h9e781f7f9b9ddc41
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panic.rs:140:14
  32:        0x10fea8e82 - tokio::runtime::task::harness::poll_future::h2c548b71e36f41da
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/harness.rs:464:18
  33:        0x10feaf69a - tokio::runtime::task::harness::Harness<T,S>::poll_inner::he175d0475dae75d0
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/harness.rs:198:27
  34:        0x10feb2e85 - tokio::runtime::task::harness::Harness<T,S>::poll::h2da5aafdd694a950
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/harness.rs:152:15
  35:        0x10fd7dced - tokio::runtime::task::raw::poll::hffd2afab02392c6e
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/raw.rs:255:5
  36:        0x111159f16 - tokio::runtime::task::raw::RawTask::poll::h27c6e8f3de8b1068
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/raw.rs:200:18
  37:        0x1111b6a82 - tokio::runtime::task::LocalNotified<S>::run::h05f29e26b28ddac7
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/task/mod.rs:394:9
  38:        0x1111b7a81 - tokio::task::local::LocalSet::tick::{{closure}}::hda05f723cf079092
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/task/local.rs:615:63
  39:        0x1111b79ef - tokio::runtime::coop::with_budget::hc5c16a707e088459
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/coop.rs:107:5
  40:        0x1111b79ef - tokio::runtime::coop::budget::h452f8777170344cf
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/coop.rs:73:5
  41:        0x1111b79ef - tokio::task::local::LocalSet::tick::h642e0e1d08be04e1
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/task/local.rs:615:31
  42:        0x110459c3b - <tokio::task::local::RunUntil<T> as core::future::future::Future>::poll::{{closure}}::h2e06c4f09a1b0cf5
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/task/local.rs:927:16
  43:        0x110458e26 - tokio::task::local::LocalSet::with::{{closure}}::hd2c6c26ca936e132
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/task/local.rs:684:13
  44:        0x11046e736 - std::thread::local::LocalKey<T>::try_with::h938db2f30a7e74f6
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/thread/local.rs:270:16
  45:        0x11046d741 - std::thread::local::LocalKey<T>::with::hce7f784e49ae613e
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/thread/local.rs:246:9
  46:        0x110458c57 - tokio::task::local::LocalSet::with::h734dbc79120d0b90
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/task/local.rs:667:9
  47:        0x110459afc - <tokio::task::local::RunUntil<T> as core::future::future::Future>::poll::h1f40860cc1a6a185
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/task/local.rs:913:9
  48:        0x1104590d4 - tokio::task::local::LocalSet::run_until::{{closure}}::h108fc08874ed98a2
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/task/local.rs:573:19
  49:        0x110459646 - <core::pin::Pin<P> as core::future::future::Future>::poll::hc9a50666e6a5b5f5
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/future/future.rs:125:9
  50:        0x110487462 - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}::{{closure}}::h48431fd5862eed62
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/scheduler/current_thread.rs:541:57
  51:        0x110487375 - tokio::runtime::coop::with_budget::h6a0f2b681be5cdb9
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/coop.rs:107:5
  52:        0x110487375 - tokio::runtime::coop::budget::h697f647d21335389
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/coop.rs:73:5
  53:        0x110487375 - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}::h7d4f19e1e8684e87
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/scheduler/current_thread.rs:541:25
  54:        0x1104861b1 - tokio::runtime::scheduler::current_thread::Context::enter::h54af24cdbd86d2ba
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/scheduler/current_thread.rs:350:19
  55:        0x110486a63 - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::h79f41b4641663abb
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/scheduler/current_thread.rs:540:36
  56:        0x11048681b - tokio::runtime::scheduler::current_thread::CoreGuard::enter::{{closure}}::hc02d83861c9b4863
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/scheduler/current_thread.rs:615:57
  57:        0x110447965 - tokio::macros::scoped_tls::ScopedKey<T>::set::h5fc0d7eaf0c9743c
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/macros/scoped_tls.rs:61:9
  58:        0x110486648 - tokio::runtime::scheduler::current_thread::CoreGuard::enter::hede518f857712d05
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/scheduler/current_thread.rs:615:27
  59:        0x11048684d - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::hb2e9195e444d48af
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/scheduler/current_thread.rs:530:19
  60:        0x110485b0e - tokio::runtime::scheduler::current_thread::CurrentThread::block_on::h869164e2b395c132
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/scheduler/current_thread.rs:154:24
  61:        0x11044b3b2 - tokio::runtime::runtime::Runtime::block_on::h7854303ba3f4d967
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.1/src/runtime/runtime.rs:302:47
  62:        0x110476537 - actix_server::worker::ServerWorker::start::{{closure}}::ha21218e30e4540ec
                               at /Users/tommylike/.cargo/registry/src/github.com-1ecc6299db9ec823/actix-server-2.2.0/src/worker.rs:402:29
  63:        0x1104844ad - std::sys_common::backtrace::__rust_begin_short_backtrace::h4a3742090008581b
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/sys_common/backtrace.rs:134:18
  64:        0x1104a404b - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h274240eee78284fc
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/thread/mod.rs:529:17
  65:        0x11044617b - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h75bab6b6ddfa2ef6
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/panic/unwind_safe.rs:271:9
  66:        0x11045106f - std::panicking::try::do_call::h7ffa196837292a71
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panicking.rs:485:40
  67:        0x110453d5d - ___rust_try
  68:        0x11045094c - std::panicking::try::h61dc6daa54d42d70
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panicking.rs:449:19
  69:        0x1104a3767 - std::panic::catch_unwind::h159d1a1e6b7cb986
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/panic.rs:140:14
  70:        0x1104a3767 - std::thread::Builder::spawn_unchecked_::{{closure}}::h6acbe680ce62d0d2
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/thread/mod.rs:528:30
  71:        0x11049ad01 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbd72094bf8852eb1
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/core/src/ops/function.rs:250:5
  72:        0x111519bf9 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1f2ab9862b396f43
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/alloc/src/boxed.rs:1985:9
  73:        0x111519bf9 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h9fb41ef341cdd807
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/alloc/src/boxed.rs:1985:9
  74:        0x111519bf9 - std::sys::unix::thread::Thread::new::thread_start::h8d71b3b0aaa4f421
                               at /rustc/74c4821045c68d42bb8b8a7c998bdb5c2a72bd0d/library/std/src/sys/unix/thread.rs:108:17
  75:     0x7ff80157c1d3 - __pthread_start

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