A super-easy, composable, web server framework for warp speeds.



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A super-easy, composable, web server framework for warp speeds.

The fundamental building block of warp is the Filter: they can be combined and composed to express rich requirements on requests.

Thanks to its Filter system, warp provides these out of the box:

  • Path routing and parameter extraction
  • Header requirements and extraction
  • Query string deserialization
  • JSON and Form bodies
  • Multipart form data
  • Static Files and Directories
  • Websockets
  • Access logging
  • Gzip, Deflate, and Brotli compression

Since it builds on top of hyper, you automatically get:

  • HTTP/1
  • HTTP/2
  • Asynchronous
  • One of the fastest HTTP implementations
  • Tested and correct


Add warp and Tokio to your dependencies:

tokio = { version = "1", features = ["full"] }
warp = "0.3"

And then get started in your main.rs:

use warp::Filter;

async fn main() {
    // GET /hello/warp => 200 OK with body "Hello, warp!"
    let hello = warp::path!("hello" / String)
        .map(|name| format!("Hello, {}!", name));

        .run(([127, 0, 0, 1], 3030))

For more information you can check the docs or the examples.

  • Upgrade to Tokio 1.0

    Upgrade to Tokio 1.0

    Similar to @Urhengulas' PR #741, although more complete, this PR aims to upgrade to Tokio v1.0.

    I can successfully run all tests with all features enabled: cargo test --all-features.

    This is my first time trying to contribute to warp, and I'm not super familiar with the internals, so please consider it a best effort :)

    Fixes #725.

    opened by aknuds1 30
  • Upgrade to Tokio v1

    Upgrade to Tokio v1

    Dependencies which need to upgrade

    • [x] hyper (hyperium/hyper#2369)
    • [x] tokio-rustls (tokio-rs/tls#46)
    • [x] tokio-tungstenite (snapview/tokio-tungstenite#142)
    opened by Urhengulas 26
  • Why warp is so slow? (compared to nginx)

    Why warp is so slow? (compared to nginx)


    I have been testing warp and nginx with a minimal content (just a "hello world" message) and noticed warp is very slow, but I'm not sure if the slowness is related to warp or something I'm doing wrong.

    The nginx config and content:

    nginx -v
    nginx version: nginx/1.16.1
    cat /etc/nginx/nginx.conf
    worker_processes auto;
    worker_cpu_affinity auto;
    events {
        worker_connections  10000;
    http {
        access_log off;
        keepalive_timeout 65;
        server {
            listen 8080 default_server;
    cat /usr/share/nginx/html/index.html
    Hello World
    curl -v http://localhost:8080
    *   Trying ::1:8080...
    * TCP_NODELAY set
    * connect to ::1 port 8080 failed: Connection refused
    *   Trying
    * TCP_NODELAY set
    * Connected to localhost ( port 8080 (#0)
    > GET / HTTP/1.1
    > Host: localhost:8080
    > User-Agent: curl/7.65.3
    > Accept: */*
    * Mark bundle as not supporting multiuse
    < HTTP/1.1 200 OK
    < Server: nginx/1.16.1
    < Date: Thu, 30 Apr 2020 22:43:42 GMT
    < Content-Type: text/html
    < Content-Length: 12
    < Last-Modified: Thu, 30 Apr 2020 21:16:45 GMT
    < Connection: keep-alive
    < ETag: "5eab403d-c"
    < Accept-Ranges: bytes
    Hello World
    * Connection #0 to host localhost left intact

    The warp stuff:

    rustc --version
    rustc 1.43.0-nightly (2890b37b8 2020-03-06)
    cat examples/hello.rs 
    use warp::Filter;
    async fn main() {
        let routes = warp::any().map(|| "Hello World");
        warp::serve(routes).run(([0, 0, 0, 0], 8080)).await;
    cargo build --release
    sudo ./target/release/examples/hello
    # using sudo just to get all kernel configurations
    curl -v http://localhost:8080
    *   Trying ::1:8080...
    * TCP_NODELAY set
    * connect to ::1 port 8080 failed: Connection refused
    *   Trying
    * TCP_NODELAY set
    * Connected to localhost ( port 8080 (#0)
    > GET / HTTP/1.1
    > Host: localhost:8080
    > User-Agent: curl/7.65.3
    > Accept: */*
    * Mark bundle as not supporting multiuse
    < HTTP/1.1 200 OK
    < content-type: text/plain; charset=utf-8
    < content-length: 11
    < date: Thu, 30 Apr 2020 22:43:13 GMT
    * Connection #0 to host localhost left intact


    Architecture:        x86_64
    CPU op-mode(s):      32-bit, 64-bit
    Byte Order:          Little Endian
    Address sizes:       43 bits physical, 48 bits virtual
    CPU(s):              8
    On-line CPU(s) list: 0-7
    Thread(s) per core:  2
    Core(s) per socket:  4
    Socket(s):           1
    NUMA node(s):        1
    Vendor ID:           AuthenticAMD
    CPU family:          23
    Model:               24
    Model name:          AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx
    Stepping:            1
    CPU MHz:             1295.685
    CPU max MHz:         2300.0000
    CPU min MHz:         1400.0000
    BogoMIPS:            4591.23
    Virtualization:      AMD-V
    L1d cache:           32K
    L1i cache:           64K
    L2 cache:            512K
    L3 cache:            4096K
    NUMA node0 CPU(s):   0-7
    Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate sme ssbd sev ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca
    lsb_release -a
    LSB Version: core-4.1-amd64:core-4.1-noarch
    Distributor ID: Fedora
    Description: Fedora release 30 (Thirty)
    Release: 30
    Codename: Thirty

    Finally, the tests using wrk!

    wrk results (avg, after three intervaled tests) for nginx

    ./wrk -t10 -c1000 -d10s --latency
    Running 10s test @
      10 threads and 1000 connections
      Thread Stats   Avg      Stdev     Max   +/- Stdev
        Latency    14.48ms   16.27ms 285.61ms   90.53%
        Req/Sec     8.12k     1.59k   15.99k    78.23%
      Latency Distribution
         50%   10.07ms
         75%   16.66ms
         90%   29.94ms
         99%   72.74ms
      807992 requests in 10.10s, 190.29MB read
    Requests/sec:  79976.39
    Transfer/sec:     18.84MB

    wrk results (avg) for warp

    ./wrk -t10 -c1000 -d10s --latency
    Running 10s test @
      10 threads and 1000 connections
      Thread Stats   Avg      Stdev     Max   +/- Stdev
        Latency    32.43ms    2.92ms  41.16ms   70.49%
        Req/Sec     3.08k   325.14     3.97k    72.20%
      Latency Distribution
         50%   32.07ms
         75%   34.20ms
         90%   36.97ms
         99%   39.35ms
      306502 requests in 10.06s, 37.41MB read
    Requests/sec:  30474.16
    Transfer/sec:      3.72MB

    (using wrk compiled by sources on Fedora30 with Clang 8.0)

    Notice warp is about three times slower than nginx.

    P.S. 1.: I did more tests using ApacheBench and JMeter with five machines (clients) connected to an external server remotely (with some limits due to internet bandwidth) providing a larger content (around 150 kB), but got slower results in warp again. 😕

    P.S. 2: Notice the nginx.conf on top of this message. How to apply those configs in warp? (specially worker_processes, worker_cpu_affinity and worker_connections).


    I don't know if there is any specific configuration to increase the warp speed. I would appreciate it and retest to get better results.

    TIA for any help!

    opened by silvioprog 24
  • trailing slash redirect

    trailing slash redirect

    Every day something new. Today I discovered the "trailing slash" dilemma. I use Warp to reply dynamic content:

    warp::path!("cargo_crev_web" / "info" ).map(|| {
            let info_data = proof_index_mod::InfoData::new();
            let html_file = info_data.render_html_file("templates/");

    This 2 routes seems the same: https://bestia.dev/cargo_crev_web/info/ https://bestia.dev/cargo_crev_web/info But unfortunately there are some subtle (unpredictable) differences. On the page there is a relative link:

    <div><a style="color:white" href="group_by_crate">group by crate</a></div>

    So if you click on the link "group by crate" there is a difference how the relative routes are calculated. With the first route with trailing slash, the link is correct: https://bestia.dev/cargo_crev_web/info/group_by_crate The relative link is added. This is what I want. But with the second link without trailing slashes, the link is invalid: https://bestia.dev/cargo_crev_web/group_by_crate The /info/ part is completely missing. It was a surprise to me. Not a good one. The recommended thing to do is a redirect from without slash to trailing slash. Do you have some experience how to solve this in Warp?

    opened by bestia-dev 22
  • Improved rejections

    Improved rejections

    I get the impression that the rejection system in this crate ought to be severely refactored. The rejections example does not show a simple way of handling functions which return Results:

    async fn login(credentials: Credentials) -> Result<UserSession, LoginError> {

    which is the standard way of handling Errors in Rust. The suggested way of handling this seems to be to

    • implement Reject for LoginError (which requires me to own the LoginError type)
    • call recover after the handling filter with a "rejection handler" function, which converts rejections into a Reply type which can be sent by warp

    This causes a lot of cognitive and syntactic overhead, and I think the crate would benefit a lot from a refactor like this.

    opened by mankinskin 20
  • Add a tracing filter which enables contextual, structured logging

    Add a tracing filter which enables contextual, structured logging

    Tracing enables us to keep track of some contextual state throughout the lifetime of a request. This means that any logging done when processing a request will automatically also log the context. This is especially useful when processing requests in parallel because it means that one can separate intertwined logs.

    The author of tracing made a good and informative video about the subject, and showing off some of the benefits.

    This is based upon @emschwartz issue and his previous work.

    This is mainly a rough first implementation to see if you would like this feature. If you are interested in this feature I was planning to go through all uses of log in the crate to replace with appropriate span's and event's. What do you think @seanmonstar ?

    Closes #288

    opened by barskern 20
  • Implemented `Filter::then`

    Implemented `Filter::then`

    Tipping point for me to jump into Future type hell to implement this was this comment - but I'd say it's worth it. I've used it in my personal project for a while, and the code I've been able to write is much cleaner, I think.


    • Added Filter::then() and complementary type Then. Exactly like map, but async. The name is meant to reflect future's then() function.
    • Filter::and_then() documentation now points to Filter::then() as an alternative, since my understanding is that:

      Rejections are meant to say "this filter didn't accept the request, maybe another can."

    Fix #712 Fix #594

    Providing Reply implementations for Result would also be very useful, so this is loosely related to #458

    Post-edit note: This function was renamed from map_async to then to more closely match future's api. However it is worth noting that just as Filter::map isn't exactly like future's map on account of rejections, Filter::then isn't exactly like future's then. However Filter::then is the same, conceptually, as future's then, so this seems like the best choice.

    opened by gtsiam 18
  • Add multipart filters

    Add multipart filters

    It would be nice to include some built-in filters in warp::multipart (or warp::body?). I'm not sure what the API should look like. Some things that come to mind that a user could want to do:

    • Decode a multipart body via serde::Deserialize.
    • Receive a file upload.
    • Receive multiple file uploads.
    • Allow streaming of the data, since buffering an entire file upload in memory could be bad if the files are huge.
    opened by seanmonstar 18
  • Custom `with` filters

    Custom `with` filters

    Under the current api, Filter::with requires that the type be W: Wrap however the Wrap trait is sealed making it difficult to write custom wrapping filters. For instance, I'm trying to write a filter that will forward a header from a request to the response. So far I've come up with the filter to generate the either grab the request id or generate a new one:

    let req_id = warp::header::<String>("x-request-id").or_else(|_| Ok(("generated".to_owned(),)))

    But I can't figure out using the combinators provided how to store the request-id in the filter and use it on the response.

    It also seems that you cannot call map after returning a warp::reply in the combinator chain so I can't even make the above work with boiler plate something like

    let my_route = req_id.map(warp::reply).map(|id: String, reply: warp::Reply| {
        reply.set_header("x-request-id", id)
    opened by bbatha 17
  • Compile time is in minutes...

    Compile time is in minutes...

    I'm seeing compile times on the order of minutes for a small < 10 route service.

        Finished dev [unoptimized + debuginfo] target(s) in 3m 12s
         Running `target/debug/mtbox-warp-admin`

    What are some things that I could look for to help shrink this to something more manageable?

    opened by scull7 14
  • warp 0.2 is slow in benchmarks

    warp 0.2 is slow in benchmarks

    In Framework Benchmarks, warp 0.2 is very very slow (check for entry called warp-rust): https://www.techempower.com/benchmarks/#section=test&runid=7f65c127-fad2-4a88-a6cb-5333c68362ef&hw=ph&test=plaintext

    This isn't the issue with warp 0.1 (again, check for entry called warp-rust): https://www.techempower.com/benchmarks/#section=test&runid=d13756ac-4638-4c62-b1b4-cde1fd47a72a&hw=ph&test=plaintext

    250,000 performance score seems much worse than 1,800,000. PHP running with php-fpm and nginx is faster than warp 0.2. It may be worth looking into why, because that's really unexpected.

    Benchmark code: https://github.com/TechEmpower/FrameworkBenchmarks/blob/master/frameworks/Rust/warp-rust/src/main.rs

    opened by xfix 14
  • Master branch fails `cargo test` on current nightly

    Master branch fails `cargo test` on current nightly

    I just tried to rebase #909 and CI failed.

    I tested again with nightly-2022-09-27 and the tests passed, but the master branch fails cargo test with current nightly.

    Seems some of the examples/tests are now errors (correctly so, at least at first glance).

    opened by gtsiam 0
  • #1002 Performance of Rejections::into_response is improved.

    #1002 Performance of Rejections::into_response is improved.

    The present PR improves the performance of Rejections::into_response(). Compared to the original approach it calls status only for known or custom instances, which allows to avoid exponential complexity. A test is added to check that the response is computed in a reasonable time, with the original implementation the test fails to complete in 1 minute.

    opened by alexeiakimov 1
  • `warp::filters::ws::Message::to_str(&self)` should have more verbose errors

    `warp::filters::ws::Message::to_str(&self)` should have more verbose errors

    Is your feature request related to a problem? Please describe. i keep geting errors that error converting to string with no context as to why it couldent.

    Describe the solution you'd like instead of returning Result<&str, ()> return Result<&str, impl std::error::Error>

    Describe alternatives you've considered n/a

    Additional context i see from scrolling through the src code that its prob because my data is not of type String but ether way a error type of () is not acceptible.

    opened by makerio90 0
  • Two way TLS handshake error

    Two way TLS handshake error

    Version warp = {version = "0.3.3", features = ["tls"]}

    Platform macOS 12.5

    Description I am trying to setup dual TLS for warp, however the TLS handshake fails on client authorization.

    Code snippet:

        async fn handler() -> Result<impl Reply, Rejection> {
        pub async fn web_service() {
            let metrics_route = warp::path("metrics").and(warp::get()).and(warp::path::end()).and_then(handler);
                .run(([0, 0, 0, 0], 9100)).await;

    Private keys and certificate generation (separately in client and server folders):

    openssl genrsa -out rsaprivkey.pem 2048
    openssl pkcs8 -topk8 -inform PEM -outform PEM -in rsaprivkey.pem -out rsaprivkey8.pem -nocrypt
    openssl req -new -x509 -key rsaprivkey8.pem -out cert.pem
    rm rsaprivkey.pem 
    mv rsaprivkey8.pem rsaprivkey.pem 

    To test:

    1. start web_service
    2. in terminal: run openssl s_client -connect localhost:9100 -cert client/cert.pem -key client/rsaprivkey.pem -CAfile server/cert.pem -debug output:
    4377953664:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure:ssl/record/rec_layer_s3.c:1544:SSL alert number 40


    run curl -k -iv --cert client/cert.pem --key client/rsaprivkey.pem --cacert server/cert.pem https://localhost:9100 output:

    *   Trying
    * Connected to localhost ( port 9100 (#0)
    * ALPN, offering h2
    * ALPN, offering http/1.1
    * successfully set certificate verify locations:
    *  CAfile: server/cert.pem
    *  CApath: none
    * (304) (OUT), TLS handshake, Client hello (1):
    * (304) (IN), TLS handshake, Server hello (2):
    * (304) (IN), TLS handshake, Unknown (8):
    * (304) (IN), TLS handshake, Request CERT (13):
    * (304) (IN), TLS handshake, Certificate (11):
    * (304) (IN), TLS handshake, CERT verify (15):
    * (304) (IN), TLS handshake, Finished (20):
    * (304) (OUT), TLS handshake, Certificate (11):
    * (304) (OUT), TLS handshake, CERT verify (15):
    * (304) (OUT), TLS handshake, Finished (20):
    * SSL connection using TLSv1.3 / AEAD-CHACHA20-POLY1305-SHA256
    * ALPN, server accepted to use h2
    * Server certificate:
    *  subject: C=AU; ST=Some-State; O=Internet Widgits Pty Ltd
    *  start date: Nov  8 08:38:26 2022 GMT
    *  expire date: Dec  8 08:38:26 2022 GMT
    *  issuer: C=AU; ST=Some-State; O=Internet Widgits Pty Ltd
    *  SSL certificate verify ok.
    * Using HTTP2, server supports multiplexing
    * Connection state changed (HTTP/2 confirmed)
    * Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
    * Using Stream ID: 1 (easy handle 0x140014000)
    > GET / HTTP/2
    > Host: localhost:9100
    > user-agent: curl/7.79.1
    > accept: */*
    * LibreSSL SSL_read: error:1404C410:SSL routines:ST_OK:sslv3 alert handshake failure, errno 0
    * Failed receiving HTTP2 data
    * LibreSSL SSL_write: SSL_ERROR_SYSCALL, errno 0
    * Failed sending HTTP2 data
    * Connection #0 to host localhost left intact
    curl: (56) LibreSSL SSL_read: error:1404C410:SSL routines:ST_OK:sslv3 alert handshake failure, errno 0

    Everything works fine when I disable client authentication. It may be that I misunderstand the way dual TLS should be used, but I spent a lot of time trying to make this work (including different ways and types of ssl keys and certificates)

    opened by hank179 0
  • v0.3.2(Nov 9, 2021)


    • Add Filter::then(), which is like Filter::map() in that it's infallible, but is async like Filter::and_then().
    • Add redirect::found() reply helper that returns 302 Found.
    • Add compression-brotli and compression-gzip cargo features to enable only the compression you need.
    • Allow HEAD requests to be served to fs::dir() filters.
    • Allow path!() with no arguments.


    • Update private dependencies Tungstenite and Multipart.
    • Replaces uses of futures with futures-util, which is a smaller dependency.

    New Contributors

    • @viraptor made their first contribution in https://github.com/seanmonstar/warp/pull/825
    • @zenria made their first contribution in https://github.com/seanmonstar/warp/pull/835
    • @Aankhen made their first contribution in https://github.com/seanmonstar/warp/pull/849
    • @FlorianDr made their first contribution in https://github.com/seanmonstar/warp/pull/843
    • @adamchalmers made their first contribution in https://github.com/seanmonstar/warp/pull/858
    • @ekzhang made their first contribution in https://github.com/seanmonstar/warp/pull/860
    • @utkarshkukreti made their first contribution in https://github.com/seanmonstar/warp/pull/696
    • @johannescpk made their first contribution in https://github.com/seanmonstar/warp/pull/861
    • @sindreij made their first contribution in https://github.com/seanmonstar/warp/pull/864
    • @haileys made their first contribution in https://github.com/seanmonstar/warp/pull/701
    • @In-line made their first contribution in https://github.com/seanmonstar/warp/pull/836
    • @0xdeafbeef made their first contribution in https://github.com/seanmonstar/warp/pull/839
    • @emesterhazy made their first contribution in https://github.com/seanmonstar/warp/pull/866
    • @joseluisq made their first contribution in https://github.com/seanmonstar/warp/pull/869
    • @JasterV made their first contribution in https://github.com/seanmonstar/warp/pull/873
    • @aujxn made their first contribution in https://github.com/seanmonstar/warp/pull/876
    • @simonborje made their first contribution in https://github.com/seanmonstar/warp/pull/883
    • @yaymukund made their first contribution in https://github.com/seanmonstar/warp/pull/885
    • @SeanChao made their first contribution in https://github.com/seanmonstar/warp/pull/890
    • @e-user made their first contribution in https://github.com/seanmonstar/warp/pull/877
    • @gtsiam made their first contribution in https://github.com/seanmonstar/warp/pull/878
    • @bkgood made their first contribution in https://github.com/seanmonstar/warp/pull/896
    • @nylonicious made their first contribution in https://github.com/seanmonstar/warp/pull/906
    • @Some-Dood made their first contribution in https://github.com/seanmonstar/warp/pull/912
    Source code(tar.gz)
    Source code(zip)
  • v0.3.1(Mar 25, 2021)

    • Features:
      • Add pong constructor to websocket messages.
      • Add redirect::see_other and redirect::permanent helpers.
    • Fixes:
      • Fix fs filters sometimes having an off-by-one error with range requests.
      • Fix CORS to allow spaces when checking Access-Control-Request-Headers.
    Source code(tar.gz)
    Source code(zip)
  • v0.3.0(Jan 19, 2021)

    • Features:
      • Add TLS client authentication support.
      • Add TLS OCSP stapling support.
      • Add From<Reject> for Rejection.
      • Add close_frame accessor to ws::Message.
    • Changes:
      • Update to Tokio v1.
      • Update to Bytes v1.
      • Update to hyper v0.14.
      • Rework sse filter to be more like ws, with a single Event type and builder.
      • Change cookie filter to extract a generic FromStr value.
    Source code(tar.gz)
    Source code(zip)
  • v0.2.5(Aug 31, 2020)

    • Features:
      • Add wrap_fn, which can be used to create a Wrap from a closure. These in turn are used with Filter::with().
      • Add warp::host filters to deal with Host/:authority headers.
      • Relax some lifetime bounds on Server.
    • Fixes:
      • Fix panic when URI doesn't have a slash (for example, CONNECT foo.bar).
    Source code(tar.gz)
    Source code(zip)
  • v0.2.4(Jul 20, 2020)

    • Features:
      • Add tracing internals in place of log (log is still emitted for backwards compatibility).
      • Add warp::trace module set of filters to customize tracing dianostics.
      • Add path method to warp::fs::File reply.
      • Add source implementation for BodyDeserializeError.
      • Make warp::ws::MissingConnectionUpgrade rejection public.
    Source code(tar.gz)
    Source code(zip)
  • v0.2.3(May 19, 2020)

    • Features:
      • Add warp::compression filters, which will compress response bodies.
      • Add warp::header::value() filter to get a request HeaderValue.
      • Add request_headers method to warp::log::Info.
      • Add max_frame_size to warp::ws::Ws builder.
      • Add remote_addr to warp::test::RequestBuilder.
      • Add try_bind_with_graceful_shutdown to warp::Server builder.
      • Add serve_incoming_with_graceful_shutdown to warp::Server builder.
    • Fixes:
      • Fix warp::addr::remote when used with Server::tls.
      • Fix panic in warp::path::{peek, tail, full} filters when the request URI is in authority-form or asterisk-form.
    Source code(tar.gz)
    Source code(zip)
  • v0.2.2(May 19, 2020)

    • Features:
      • Implement Reply for all Box<T> where T: Reply.
      • Add name methods to MissingHeader, InvalidHeader, and MissingCookie rejections.
      • Add warp::ext::optional() filter that optionally retrieves an extension from the request.
    • Fixes:
      • Fix the sending of pings when a user sends a ws::Message::ping().
    Source code(tar.gz)
    Source code(zip)
  • v0.2.1(Jan 23, 2020)

  • v0.2.0(Jan 16, 2020)

    • Features:
      • Update to std::future, adding async/await support!
      • Add warp::service() to convert a Filter into a tower::Service.
      • Implement Reply for Box<dyn Reply>.
    • Changes:
      • Refactored Rejection system (#311).
      • Change path! macro to assume a path::end() by default, with explicit / .. to allow building a prefix (#359).
      • Change warp::path(str) to accept any AsRef<str> argument.
      • Rename "2"-suffixed filters and types (get2 to get, ws2 to ws, etc).
      • Filter::{or, or_else, recover} now require Self::Error=Rejection. This helps catch filters that didn't make sense (like warp::any().or(warp::get())).
      • Change several warp::body filters (#345).
      • Change warp::cors() to return a warp::cors::Builder which still implements Wrap, but can also build a cheaper-to-clone wrapper.
      • Change warp::multipart stream API to allow for errors when streaming.
      • Change warp::sse to no longer return a Filter, adds warp::sse::reply to do what Sse::reply did.
      • Change Server::tls() to return a TLS server builder (#340).
      • Change internal warp::never::Never usage with std::convert::Infallible.
      • Remove warp::ext::set() function (#222).
      • Remove deprecated warp::cookie::optional_value().
    Source code(tar.gz)
    Source code(zip)
  • v0.1.20(Jan 16, 2020)

  • v0.1.19(Jan 16, 2020)

    • Features:
      • Make warp::multipart and warp::ws support optional, though enabled by default.
    • Fixes:
      • Fix warp::fs::dir filter to reject paths containing backslashes.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.18(Jul 26, 2019)

  • v0.1.17(Jul 26, 2019)

  • v0.1.16(Jul 26, 2019)

    • Features:
      • Unseal the Reply trait: custom types can now implement Reply.
      • Add warp::sse::keep_alive() replacement for warp::sse::keep() which allows customizing keep-alive behavior.
      • Add warp::log::Info::host() accessor.
    • Fixes:
      • Fix warp::fs filters from sending some headers for 304 responses.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.15(Jul 26, 2019)

  • v0.1.14(Jul 26, 2019)

  • v0.1.13(Jul 26, 2019)

    • Features:
      • Implement Reply for Vec<u8> and &'static [u8].
      • Set content-type header automatically for string and bytes replies.
      • Add expose_headers to warp::cors filter.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.12(Jan 29, 2019)

    • Features:
      • Implement PartialEq, Eq, and Clone for warp::ws::Message.
    • Fixes:
      • Fix panic when incoming request URI may not have a path (such as CONNECT requests).
    Source code(tar.gz)
    Source code(zip)
  • v0.1.11(Jan 14, 2019)

    • Features:
      • Add warp::sse filters for handling Server-Sent-Events.
      • Add allow_headers to warp::cors filter.
    • Fixes:
      • Fix TLS handshake to close the connection if handshake fails.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.10(Dec 29, 2018)

    • Features:
      • Add optional TLS support. Enable the tls feature, and then use Server::tls.
      • Add warp::cors filter for CORS support.
      • Add warp::addr::remote to access the remote address of a request.
      • Add warp::log::custom to support customizing of access logging.
      • Add warp::test::ws to improve testing Websocket filters.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.9(Oct 31, 2018)

    • Features:
      • Add warp::ext::get and warp::ext::set to set request extensions.
      • Add Filter::untuple_one to unroll nested tuple layers from extractions.
      • Add Ws2::max_send_queue configuration method.
      • Add ws::Message::is_ping method, and yield pings to user code.
    • Fixes:
      • Fix panic in debug mode when receiving a websocket ping.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.8(Oct 25, 2018)

    • Features:
      • Improved flexibility of Rejection system.

        The Rejection type can now nest and combine arbitrary rejections, so it is no longer bound to a small set of meanings. The ranking of status codes is still used to determine which rejection gets priority.

        A different priority can be implemented by handling rejections with a Filter::recover, and searching for causes in order via Rejection::find_cause.

        • Adds warp::reject::custom() to create a Rejection with any Into<Box<std::error::Error>>. These rejections should be handled with an eventual Filter::recover. Any unhandled custom rejections are considered a server error.
        • Deprecates Rejection::with. Use custom rejections instead.
        • Deprecates Rejection::into_cause, as it can no longer work. Always returns Err(Rejection).
        • Deprecates Rejection::json, since the format needed is too generic. The errors.rs example shows how to send custom JSON when recovering from rejections.
        • Deprecates warp::reject(), since it current signals a 400 Bad Request, but in newer versions, it will signal 404 Not Found. It's deprecated simply to warn that the semantics are changing, but the function won't actually go away.
        • Deprecates reject::bad_request(), reject::forbidden(), and reject::server_error(). Uses custom rejections instead.
      • Renamed warp::path::index to warp::path::end.

    Source code(tar.gz)
    Source code(zip)
  • v0.1.7(Oct 15, 2018)

    • Features:

      • Export the types returned from the warp::body::stream() filter, BodyStream and StreamBuf.
      • Deprecated Rejection::into_cause, since an upcoming Rejection refactor will make it impossible to support.
    • Fixes:

      • Fix websocket filters to do a case-insensitive match of the Connection header.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.6(Oct 5, 2018)

    • Features:
      • Add Conditional and Range request support for warp::fs filters.
      • Relaxed bounds on Rejection::with to no longer need to be Sized.
      • Add warp::path::peek() which gets the unmatched tail without adjusting the currently matched path.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.5(Oct 3, 2018)

    • Features:

      • Serve index.html automatically with warp::fs::dir filter.
      • Include last-modified header with warp::fs filters.
      • Add warp::redirect to easily reply with redirections.
      • Add warp::reply::{with_status, with_header} to wrap impl Replys directly with a new status code or header.
      • Add support for running a warp Server with a custom source of incoming connections.
        • Server::run_incoming to have the runtime started automatically.
        • Server::serve_incoming to get a future to run on existing runtime.
        • These can be used to support Unix Domain Sockets, TLS, and other transports.
      • Add Rejection::into_cause() to retrieve the original error of a rejection back.
      • Add Rejection::json() to convert a rejection into a JSON response.
    • Fixes

      • Internal errors in warp that result in rendering a 500 Internal Server Error are now also logged at the error level.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.4(Oct 3, 2018)

    • Features:
      • Add warp::reply::with::headers(HeaderMap) filter wrapper.
      • Add warp::cookie::optional() to get an optional cookie value.
      • Add warp::path::full() to be able to extract the full request path without affecting route matching.
      • Add graceful shutdown support to the Server.
      • Allow empty query strings to be treated as for warp::query().
    Source code(tar.gz)
    Source code(zip)
  • v0.1.3(Oct 3, 2018)

    • Features:
      • Add warp::reject::forbidden() to represent 403 Forbidden responses.
      • Add Rejection::with(cause) to customize rejection messages.
    • Fixes:
      • Fix warp::body::form to allow charsets in the content-type header.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.2(Oct 3, 2018)

    • Features:
      • Implemented Reply for Response<impl Into<hyper::Body>, allowing streaming response bodies.
      • Add warp::body::stream() filter to access the request body as an impl Stream.
      • Add warp::ws2() as a more flexible websocket filter.
        • This allows passing other extracted values to the upgrade callback, such as a value from a header or path.
        • Deprecates warp::ws(), and ws2() will become ws() in 0.2.
      • Add warp::get2(), warp::post2(), warp::put2(), and warp::delete2() as more standard method filters that are used via chaining instead of nesting.
        • get(), post(), put(), and delete() are deprecated, and the new versions will become them in 0.2.
      • Add Filter::unify() for when a filter returns Either<T, T>, converting the Either into the inner T, regardless of which variant it was.
        • This requires that both sides of the Either be the same type.

        • This can be useful when extracting a value that might be present in different places of the request.

          // Allow `MyId` to be a path parameter or a header...
          let id = warp::path::param::<MyId>()
          // A way of providing default values...
          let dnt = warp::header::<bool>("dnt")
              .or(warp::any().map(|| true))
      • Add content-type header automatically to replies from file and dir filters based on file extension.
      • Add warp::head(), warp::options(), and warp::patch() as new Method filters.
      • Try to use OS blocksize in warp::fs filters.
    • Fixes:
      • Chaining filters that try to consume the request body will log that the body is already consumed, and return a 500 Internal Server Error rejection.
    Source code(tar.gz)
    Source code(zip)
  • v0.1.1(Aug 8, 2018)

    • Features:
      • add warp::query::raw() filter to get query as a String.
      • add Filter::recover() to ease customizing of rejected responses.
      • add warp::header::headers_clone() filter to get a clone of request's HeaderMap.
      • add warp::path::tail() filter to get remaining "tail" of the request path.
    • Fixes:
      • URL decode path segments in warp::fs filters.
    Source code(tar.gz)
    Source code(zip)
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