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actix-web
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actix-web/src/response.rs

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use std::{
cell::{Ref, RefMut},
convert::TryInto,
fmt,
future::Future,
mem,
pin::Pin,
task::{Context, Poll},
};
use actix_http::{
body::{Body, BodyStream, MessageBody, ResponseBody},
http::{
header::{self, HeaderMap, HeaderName, IntoHeaderPair, IntoHeaderValue},
ConnectionType, Error as HttpError, StatusCode,
},
Extensions, Response, ResponseHead,
};
use bytes::Bytes;
use futures_core::Stream;
use serde::Serialize;
#[cfg(feature = "cookies")]
use actix_http::http::header::HeaderValue;
#[cfg(feature = "cookies")]
use cookie::{Cookie, CookieJar};
use crate::error::{Error, JsonPayloadError};
/// An HTTP Response
pub struct HttpResponse<B = Body> {
res: Response<B>,
error: Option<Error>,
}
impl HttpResponse<Body> {
/// Create HTTP response builder with specific status.
#[inline]
pub fn build(status: StatusCode) -> HttpResponseBuilder {
HttpResponseBuilder::new(status)
}
/// Create HTTP response builder
#[inline]
pub fn build_from<T: Into<HttpResponseBuilder>>(source: T) -> HttpResponseBuilder {
source.into()
}
/// Create a response.
#[inline]
pub fn new(status: StatusCode) -> Self {
Self {
res: Response::new(status),
error: None,
}
}
/// Create an error response.
#[inline]
pub fn from_error(error: Error) -> Self {
let res = error.as_response_error().error_response();
Self {
res,
error: Some(error),
}
}
/// Convert response to response with body
pub fn into_body<B>(self) -> HttpResponse<B> {
HttpResponse {
res: self.res.into_body(),
error: self.error,
}
}
}
impl<B> HttpResponse<B> {
/// Constructs a response with body
#[inline]
pub fn with_body(status: StatusCode, body: B) -> Self {
Self {
res: Response::with_body(status, body),
error: None,
}
}
/// Returns a reference to response head.
#[inline]
pub fn head(&self) -> &ResponseHead {
self.res.head()
}
/// Returns a mutable reference to response head.
#[inline]
pub fn head_mut(&mut self) -> &mut ResponseHead {
self.res.head_mut()
}
/// The source `error` for this response
#[inline]
pub fn error(&self) -> Option<&Error> {
self.error.as_ref()
}
/// Get the response status code
#[inline]
pub fn status(&self) -> StatusCode {
self.res.status()
}
/// Set the `StatusCode` for this response
#[inline]
pub fn status_mut(&mut self) -> &mut StatusCode {
self.res.status_mut()
}
/// Get the headers from the response
#[inline]
pub fn headers(&self) -> &HeaderMap {
self.res.headers()
}
/// Get a mutable reference to the headers
#[inline]
pub fn headers_mut(&mut self) -> &mut HeaderMap {
self.res.headers_mut()
}
/// Get an iterator for the cookies set by this response.
#[cfg(feature = "cookies")]
pub fn cookies(&self) -> CookieIter<'_> {
CookieIter {
iter: self.headers().get_all(header::SET_COOKIE),
}
}
/// Add a cookie to this response
#[cfg(feature = "cookies")]
pub fn add_cookie(&mut self, cookie: &Cookie<'_>) -> Result<(), HttpError> {
HeaderValue::from_str(&cookie.to_string())
.map(|c| {
self.headers_mut().append(header::SET_COOKIE, c);
})
.map_err(|e| e.into())
}
/// Remove all cookies with the given name from this response. Returns
/// the number of cookies removed.
#[cfg(feature = "cookies")]
pub fn del_cookie(&mut self, name: &str) -> usize {
let headers = self.headers_mut();
let vals: Vec<HeaderValue> = headers
.get_all(header::SET_COOKIE)
.map(|v| v.to_owned())
.collect();
headers.remove(header::SET_COOKIE);
let mut count: usize = 0;
for v in vals {
if let Ok(s) = v.to_str() {
if let Ok(c) = Cookie::parse_encoded(s) {
if c.name() == name {
count += 1;
continue;
}
}
}
// put set-cookie header head back if it does not validate
headers.append(header::SET_COOKIE, v);
}
count
}
/// Connection upgrade status
#[inline]
pub fn upgrade(&self) -> bool {
self.res.upgrade()
}
/// Keep-alive status for this connection
pub fn keep_alive(&self) -> bool {
self.res.keep_alive()
}
/// Responses extensions
#[inline]
pub fn extensions(&self) -> Ref<'_, Extensions> {
self.res.extensions()
}
/// Mutable reference to a the response's extensions
#[inline]
pub fn extensions_mut(&mut self) -> RefMut<'_, Extensions> {
self.res.extensions_mut()
}
/// Get body of this response
#[inline]
pub fn body(&self) -> &ResponseBody<B> {
self.res.body()
}
/// Set a body
pub fn set_body<B2>(self, body: B2) -> HttpResponse<B2> {
HttpResponse {
res: self.res.set_body(body),
error: None,
// error: self.error, ??
}
}
/// Split response and body
pub fn into_parts(self) -> (HttpResponse<()>, ResponseBody<B>) {
let (head, body) = self.res.into_parts();
(
HttpResponse {
res: head,
error: None,
},
body,
)
}
/// Drop request's body
pub fn drop_body(self) -> HttpResponse<()> {
HttpResponse {
res: self.res.drop_body(),
error: None,
}
}
/// Set a body and return previous body value
pub fn map_body<F, B2>(self, f: F) -> HttpResponse<B2>
where
F: FnOnce(&mut ResponseHead, ResponseBody<B>) -> ResponseBody<B2>,
{
HttpResponse {
res: self.res.map_body(f),
error: self.error,
}
}
/// Extract response body
pub fn take_body(&mut self) -> ResponseBody<B> {
self.res.take_body()
}
}
impl<B: MessageBody> fmt::Debug for HttpResponse<B> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("HttpResponse")
.field("error", &self.error)
.field("res", &self.res)
.finish()
}
}
impl<B> From<Response<B>> for HttpResponse<B> {
fn from(res: Response<B>) -> Self {
HttpResponse { res, error: None }
}
}
impl From<Error> for HttpResponse {
fn from(err: Error) -> Self {
HttpResponse::from_error(err)
}
}
impl<B> From<HttpResponse<B>> for Response<B> {
fn from(res: HttpResponse<B>) -> Self {
// this impl will always be called as part of dispatcher
// TODO: expose cause somewhere?
// if let Some(err) = res.error {
// eprintln!("impl<B> From<HttpResponse<B>> for Response<B> let Some(err)");
// return Response::from_error(err).into_body();
// }
res.res
}
}
impl Future for HttpResponse {
type Output = Result<Response<Body>, Error>;
fn poll(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<Self::Output> {
if let Some(err) = self.error.take() {
return Poll::Ready(Ok(Response::from_error(err).into_body()));
}
Poll::Ready(Ok(mem::replace(
&mut self.res,
Response::new(StatusCode::default()),
)))
}
}
/// An HTTP response builder.
///
/// This type can be used to construct an instance of `Response` through a builder-like pattern.
pub struct HttpResponseBuilder {
head: Option<ResponseHead>,
err: Option<HttpError>,
#[cfg(feature = "cookies")]
cookies: Option<CookieJar>,
}
impl HttpResponseBuilder {
#[inline]
/// Create response builder
pub fn new(status: StatusCode) -> Self {
Self {
head: Some(ResponseHead::new(status)),
err: None,
#[cfg(feature = "cookies")]
cookies: None,
}
}
/// Set HTTP status code of this response.
#[inline]
pub fn status(&mut self, status: StatusCode) -> &mut Self {
if let Some(parts) = self.inner() {
parts.status = status;
}
self
}
/// Insert a header, replacing any that were set with an equivalent field name.
///
/// ```
/// use actix_web::{HttpResponse, http::header};
///
/// HttpResponse::Ok()
/// .insert_header(header::ContentType(mime::APPLICATION_JSON))
/// .insert_header(("X-TEST", "value"))
/// .finish();
/// ```
pub fn insert_header<H>(&mut self, header: H) -> &mut Self
where
H: IntoHeaderPair,
{
if let Some(parts) = self.inner() {
match header.try_into_header_pair() {
Ok((key, value)) => {
parts.headers.insert(key, value);
}
Err(e) => self.err = Some(e.into()),
};
}
self
}
/// Append a header, keeping any that were set with an equivalent field name.
///
/// ```
/// use actix_web::{HttpResponse, http::header};
///
/// HttpResponse::Ok()
/// .append_header(header::ContentType(mime::APPLICATION_JSON))
/// .append_header(("X-TEST", "value1"))
/// .append_header(("X-TEST", "value2"))
/// .finish();
/// ```
pub fn append_header<H>(&mut self, header: H) -> &mut Self
where
H: IntoHeaderPair,
{
if let Some(parts) = self.inner() {
match header.try_into_header_pair() {
Ok((key, value)) => parts.headers.append(key, value),
Err(e) => self.err = Some(e.into()),
};
}
self
}
/// Replaced with [`Self::insert_header()`].
#[deprecated(
since = "4.0.0",
note = "Replaced with `insert_header((key, value))`. Will be removed in v5."
)]
pub fn set_header<K, V>(&mut self, key: K, value: V) -> &mut Self
where
K: TryInto<HeaderName>,
K::Error: Into<HttpError>,
V: IntoHeaderValue,
{
if self.err.is_some() {
return self;
}
match (key.try_into(), value.try_into_value()) {
(Ok(name), Ok(value)) => return self.insert_header((name, value)),
(Err(err), _) => self.err = Some(err.into()),
(_, Err(err)) => self.err = Some(err.into()),
}
self
}
/// Replaced with [`Self::append_header()`].
#[deprecated(
since = "4.0.0",
note = "Replaced with `append_header((key, value))`. Will be removed in v5."
)]
pub fn header<K, V>(&mut self, key: K, value: V) -> &mut Self
where
K: TryInto<HeaderName>,
K::Error: Into<HttpError>,
V: IntoHeaderValue,
{
if self.err.is_some() {
return self;
}
match (key.try_into(), value.try_into_value()) {
(Ok(name), Ok(value)) => return self.append_header((name, value)),
(Err(err), _) => self.err = Some(err.into()),
(_, Err(err)) => self.err = Some(err.into()),
}
self
}
/// Set the custom reason for the response.
#[inline]
pub fn reason(&mut self, reason: &'static str) -> &mut Self {
if let Some(parts) = self.inner() {
parts.reason = Some(reason);
}
self
}
/// Set connection type to KeepAlive
#[inline]
pub fn keep_alive(&mut self) -> &mut Self {
if let Some(parts) = self.inner() {
parts.set_connection_type(ConnectionType::KeepAlive);
}
self
}
/// Set connection type to Upgrade
#[inline]
pub fn upgrade<V>(&mut self, value: V) -> &mut Self
where
V: IntoHeaderValue,
{
if let Some(parts) = self.inner() {
parts.set_connection_type(ConnectionType::Upgrade);
}
if let Ok(value) = value.try_into_value() {
self.insert_header((header::UPGRADE, value));
}
self
}
/// Force close connection, even if it is marked as keep-alive
#[inline]
pub fn force_close(&mut self) -> &mut Self {
if let Some(parts) = self.inner() {
parts.set_connection_type(ConnectionType::Close);
}
self
}
/// Disable chunked transfer encoding for HTTP/1.1 streaming responses.
#[inline]
pub fn no_chunking(&mut self, len: u64) -> &mut Self {
let mut buf = itoa::Buffer::new();
self.insert_header((header::CONTENT_LENGTH, buf.format(len)));
if let Some(parts) = self.inner() {
parts.no_chunking(true);
}
self
}
/// Set response content type.
#[inline]
pub fn content_type<V>(&mut self, value: V) -> &mut Self
where
V: IntoHeaderValue,
{
if let Some(parts) = self.inner() {
match value.try_into_value() {
Ok(value) => {
parts.headers.insert(header::CONTENT_TYPE, value);
}
Err(e) => self.err = Some(e.into()),
};
}
self
}
/// Set a cookie.
///
/// ```
/// use actix_web::{HttpResponse, cookie::Cookie};
///
/// HttpResponse::Ok()
/// .cookie(
/// Cookie::build("name", "value")
/// .domain("www.rust-lang.org")
/// .path("/")
/// .secure(true)
/// .http_only(true)
/// .finish(),
/// )
/// .finish();
/// ```
#[cfg(feature = "cookies")]
pub fn cookie<'c>(&mut self, cookie: Cookie<'c>) -> &mut Self {
if self.cookies.is_none() {
let mut jar = CookieJar::new();
jar.add(cookie.into_owned());
self.cookies = Some(jar)
} else {
self.cookies.as_mut().unwrap().add(cookie.into_owned());
}
self
}
/// Remove cookie.
///
/// A `Set-Cookie` header is added that will delete a cookie with the same name from the client.
///
/// ```
/// use actix_web::{HttpRequest, HttpResponse, Responder};
///
/// async fn handler(req: HttpRequest) -> impl Responder {
/// let mut builder = HttpResponse::Ok();
///
/// if let Some(ref cookie) = req.cookie("name") {
/// builder.del_cookie(cookie);
/// }
///
/// builder.finish()
/// }
/// ```
#[cfg(feature = "cookies")]
pub fn del_cookie(&mut self, cookie: &Cookie<'_>) -> &mut Self {
if self.cookies.is_none() {
self.cookies = Some(CookieJar::new())
}
let jar = self.cookies.as_mut().unwrap();
let cookie = cookie.clone().into_owned();
jar.add_original(cookie.clone());
jar.remove(cookie);
self
}
/// Responses extensions
#[inline]
pub fn extensions(&self) -> Ref<'_, Extensions> {
let head = self.head.as_ref().expect("cannot reuse response builder");
head.extensions()
}
/// Mutable reference to a the response's extensions
#[inline]
pub fn extensions_mut(&mut self) -> RefMut<'_, Extensions> {
let head = self.head.as_ref().expect("cannot reuse response builder");
head.extensions_mut()
}
/// Set a body and generate `Response`.
///
/// `HttpResponseBuilder` can not be used after this call.
#[inline]
pub fn body<B: Into<Body>>(&mut self, body: B) -> HttpResponse {
self.message_body(body.into())
}
/// Set a body and generate `Response`.
///
/// `HttpResponseBuilder` can not be used after this call.
pub fn message_body<B>(&mut self, body: B) -> HttpResponse<B> {
if let Some(err) = self.err.take() {
return HttpResponse::from_error(Error::from(err)).into_body();
}
// allow unused mut when cookies feature is disabled
#[allow(unused_mut)]
let mut head = self.head.take().expect("cannot reuse response builder");
let mut res = HttpResponse::with_body(StatusCode::OK, body);
*res.head_mut() = head;
#[cfg(feature = "cookies")]
if let Some(ref jar) = self.cookies {
for cookie in jar.delta() {
match HeaderValue::from_str(&cookie.to_string()) {
Ok(val) => res.headers_mut().append(header::SET_COOKIE, val),
Err(err) => return HttpResponse::from_error(Error::from(err)).into_body(),
};
}
}
res
}
/// Set a streaming body and generate `Response`.
///
/// `HttpResponseBuilder` can not be used after this call.
#[inline]
pub fn streaming<S, E>(&mut self, stream: S) -> HttpResponse
where
S: Stream<Item = Result<Bytes, E>> + Unpin + 'static,
E: Into<Error> + 'static,
{
self.body(Body::from_message(BodyStream::new(stream)))
}
/// Set a json body and generate `Response`
///
/// `HttpResponseBuilder` can not be used after this call.
pub fn json(&mut self, value: impl Serialize) -> HttpResponse {
match serde_json::to_string(&value) {
Ok(body) => {
let contains = if let Some(parts) = self.inner() {
parts.headers.contains_key(header::CONTENT_TYPE)
} else {
true
};
if !contains {
self.insert_header((header::CONTENT_TYPE, mime::APPLICATION_JSON));
}
self.body(Body::from(body))
}
Err(err) => HttpResponse::from_error(JsonPayloadError::Serialize(err).into()),
}
}
/// Set an empty body and generate `Response`
///
/// `HttpResponseBuilder` can not be used after this call.
#[inline]
pub fn finish(&mut self) -> HttpResponse {
self.body(Body::Empty)
}
/// This method construct new `HttpResponseBuilder`
pub fn take(&mut self) -> Self {
Self {
head: self.head.take(),
err: self.err.take(),
#[cfg(feature = "cookies")]
cookies: self.cookies.take(),
}
}
#[inline]
fn inner(&mut self) -> Option<&mut ResponseHead> {
if self.err.is_some() {
return None;
}
self.head.as_mut()
}
}
impl From<HttpResponseBuilder> for HttpResponse {
fn from(mut builder: HttpResponseBuilder) -> Self {
builder.finish()
}
}
impl From<HttpResponseBuilder> for Response<Body> {
fn from(mut builder: HttpResponseBuilder) -> Self {
builder.finish().into()
}
}
impl Future for HttpResponseBuilder {
type Output = Result<HttpResponse, Error>;
fn poll(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<Self::Output> {
eprintln!("httpresponse future error");
Poll::Ready(Ok(self.finish()))
}
}
#[cfg(feature = "cookies")]
pub struct CookieIter<'a> {
iter: header::GetAll<'a>,
}
#[cfg(feature = "cookies")]
impl<'a> Iterator for CookieIter<'a> {
type Item = Cookie<'a>;
#[inline]
fn next(&mut self) -> Option<Cookie<'a>> {
for v in self.iter.by_ref() {
if let Ok(c) = Cookie::parse_encoded(v.to_str().ok()?) {
return Some(c);
}
}
None
}
}
mod http_codes {
//! Status code based HTTP response builders.
use actix_http::http::StatusCode;
use super::{HttpResponse, HttpResponseBuilder};
macro_rules! static_resp {
($name:ident, $status:expr) => {
#[allow(non_snake_case, missing_docs)]
pub fn $name() -> HttpResponseBuilder {
HttpResponseBuilder::new($status)
}
};
}
impl HttpResponse {
static_resp!(Continue, StatusCode::CONTINUE);
static_resp!(SwitchingProtocols, StatusCode::SWITCHING_PROTOCOLS);
static_resp!(Processing, StatusCode::PROCESSING);
static_resp!(Ok, StatusCode::OK);
static_resp!(Created, StatusCode::CREATED);
static_resp!(Accepted, StatusCode::ACCEPTED);
static_resp!(
NonAuthoritativeInformation,
StatusCode::NON_AUTHORITATIVE_INFORMATION
);
static_resp!(NoContent, StatusCode::NO_CONTENT);
static_resp!(ResetContent, StatusCode::RESET_CONTENT);
static_resp!(PartialContent, StatusCode::PARTIAL_CONTENT);
static_resp!(MultiStatus, StatusCode::MULTI_STATUS);
static_resp!(AlreadyReported, StatusCode::ALREADY_REPORTED);
static_resp!(MultipleChoices, StatusCode::MULTIPLE_CHOICES);
static_resp!(MovedPermanently, StatusCode::MOVED_PERMANENTLY);
static_resp!(Found, StatusCode::FOUND);
static_resp!(SeeOther, StatusCode::SEE_OTHER);
static_resp!(NotModified, StatusCode::NOT_MODIFIED);
static_resp!(UseProxy, StatusCode::USE_PROXY);
static_resp!(TemporaryRedirect, StatusCode::TEMPORARY_REDIRECT);
static_resp!(PermanentRedirect, StatusCode::PERMANENT_REDIRECT);
static_resp!(BadRequest, StatusCode::BAD_REQUEST);
static_resp!(NotFound, StatusCode::NOT_FOUND);
static_resp!(Unauthorized, StatusCode::UNAUTHORIZED);
static_resp!(PaymentRequired, StatusCode::PAYMENT_REQUIRED);
static_resp!(Forbidden, StatusCode::FORBIDDEN);
static_resp!(MethodNotAllowed, StatusCode::METHOD_NOT_ALLOWED);
static_resp!(NotAcceptable, StatusCode::NOT_ACCEPTABLE);
static_resp!(
ProxyAuthenticationRequired,
StatusCode::PROXY_AUTHENTICATION_REQUIRED
);
static_resp!(RequestTimeout, StatusCode::REQUEST_TIMEOUT);
static_resp!(Conflict, StatusCode::CONFLICT);
static_resp!(Gone, StatusCode::GONE);
static_resp!(LengthRequired, StatusCode::LENGTH_REQUIRED);
static_resp!(PreconditionFailed, StatusCode::PRECONDITION_FAILED);
static_resp!(PreconditionRequired, StatusCode::PRECONDITION_REQUIRED);
static_resp!(PayloadTooLarge, StatusCode::PAYLOAD_TOO_LARGE);
static_resp!(UriTooLong, StatusCode::URI_TOO_LONG);
static_resp!(UnsupportedMediaType, StatusCode::UNSUPPORTED_MEDIA_TYPE);
static_resp!(RangeNotSatisfiable, StatusCode::RANGE_NOT_SATISFIABLE);
static_resp!(ExpectationFailed, StatusCode::EXPECTATION_FAILED);
static_resp!(UnprocessableEntity, StatusCode::UNPROCESSABLE_ENTITY);
static_resp!(TooManyRequests, StatusCode::TOO_MANY_REQUESTS);
static_resp!(
RequestHeaderFieldsTooLarge,
StatusCode::REQUEST_HEADER_FIELDS_TOO_LARGE
);
static_resp!(
UnavailableForLegalReasons,
StatusCode::UNAVAILABLE_FOR_LEGAL_REASONS
);
static_resp!(InternalServerError, StatusCode::INTERNAL_SERVER_ERROR);
static_resp!(NotImplemented, StatusCode::NOT_IMPLEMENTED);
static_resp!(BadGateway, StatusCode::BAD_GATEWAY);
static_resp!(ServiceUnavailable, StatusCode::SERVICE_UNAVAILABLE);
static_resp!(GatewayTimeout, StatusCode::GATEWAY_TIMEOUT);
static_resp!(VersionNotSupported, StatusCode::HTTP_VERSION_NOT_SUPPORTED);
static_resp!(VariantAlsoNegotiates, StatusCode::VARIANT_ALSO_NEGOTIATES);
static_resp!(InsufficientStorage, StatusCode::INSUFFICIENT_STORAGE);
static_resp!(LoopDetected, StatusCode::LOOP_DETECTED);
}
#[cfg(test)]
mod tests {
use crate::dev::Body;
use crate::http::StatusCode;
use crate::HttpResponse;
#[test]
fn test_build() {
let resp = HttpResponse::Ok().body(Body::Empty);
assert_eq!(resp.status(), StatusCode::OK);
}
}
}
#[cfg(test)]
mod tests {
use bytes::{Bytes, BytesMut};
use super::{HttpResponse, HttpResponseBuilder};
use crate::dev::{Body, MessageBody, ResponseBody};
use crate::http::header::{self, HeaderValue, CONTENT_TYPE, COOKIE};
use crate::http::StatusCode;
#[test]
fn test_debug() {
let resp = HttpResponse::Ok()
.append_header((COOKIE, HeaderValue::from_static("cookie1=value1; ")))
.append_header((COOKIE, HeaderValue::from_static("cookie2=value2; ")))
.finish();
let dbg = format!("{:?}", resp);
assert!(dbg.contains("HttpResponse"));
}
#[test]
fn test_basic_builder() {
let resp = HttpResponse::Ok()
.insert_header(("X-TEST", "value"))
.finish();
assert_eq!(resp.status(), StatusCode::OK);
}
#[test]
fn test_upgrade() {
let resp = HttpResponseBuilder::new(StatusCode::OK)
.upgrade("websocket")
.finish();
assert!(resp.upgrade());
assert_eq!(
resp.headers().get(header::UPGRADE).unwrap(),
HeaderValue::from_static("websocket")
);
}
#[test]
fn test_force_close() {
let resp = HttpResponseBuilder::new(StatusCode::OK)
.force_close()
.finish();
assert!(!resp.keep_alive())
}
#[test]
fn test_content_type() {
let resp = HttpResponseBuilder::new(StatusCode::OK)
.content_type("text/plain")
.body(Body::Empty);
assert_eq!(resp.headers().get(CONTENT_TYPE).unwrap(), "text/plain")
}
pub async fn read_body<B>(mut body: ResponseBody<B>) -> Bytes
where
B: MessageBody + Unpin,
{
use futures_util::StreamExt as _;
let mut bytes = BytesMut::new();
while let Some(item) = body.next().await {
bytes.extend_from_slice(&item.unwrap());
}
bytes.freeze()
}
#[actix_rt::test]
async fn test_json() {
let mut resp = HttpResponse::Ok().json(vec!["v1", "v2", "v3"]);
let ct = resp.headers().get(CONTENT_TYPE).unwrap();
assert_eq!(ct, HeaderValue::from_static("application/json"));
assert_eq!(
read_body(resp.take_body()).await.as_ref(),
br#"["v1","v2","v3"]"#
);
let mut resp = HttpResponse::Ok().json(&["v1", "v2", "v3"]);
let ct = resp.headers().get(CONTENT_TYPE).unwrap();
assert_eq!(ct, HeaderValue::from_static("application/json"));
assert_eq!(
read_body(resp.take_body()).await.as_ref(),
br#"["v1","v2","v3"]"#
);
// content type override
let mut resp = HttpResponse::Ok()
.insert_header((CONTENT_TYPE, "text/json"))
.json(&vec!["v1", "v2", "v3"]);
let ct = resp.headers().get(CONTENT_TYPE).unwrap();
assert_eq!(ct, HeaderValue::from_static("text/json"));
assert_eq!(
read_body(resp.take_body()).await.as_ref(),
br#"["v1","v2","v3"]"#
);
}
#[actix_rt::test]
async fn test_serde_json_in_body() {
let mut resp = HttpResponse::Ok().body(
serde_json::to_vec(&serde_json::json!({ "test-key": "test-value" })).unwrap(),
);
assert_eq!(
read_body(resp.take_body()).await.as_ref(),
br#"{"test-key":"test-value"}"#
);
}
#[test]
fn response_builder_header_insert_kv() {
let mut res = HttpResponse::Ok();
res.insert_header(("Content-Type", "application/octet-stream"));
let res = res.finish();
assert_eq!(
res.headers().get("Content-Type"),
Some(&HeaderValue::from_static("application/octet-stream"))
);
}
#[test]
fn response_builder_header_insert_typed() {
let mut res = HttpResponse::Ok();
res.insert_header((header::CONTENT_TYPE, mime::APPLICATION_OCTET_STREAM));
let res = res.finish();
assert_eq!(
res.headers().get("Content-Type"),
Some(&HeaderValue::from_static("application/octet-stream"))
);
}
#[test]
fn response_builder_header_append_kv() {
let mut res = HttpResponse::Ok();
res.append_header(("Content-Type", "application/octet-stream"));
res.append_header(("Content-Type", "application/json"));
let res = res.finish();
let headers: Vec<_> = res.headers().get_all("Content-Type").cloned().collect();
assert_eq!(headers.len(), 2);
assert!(headers.contains(&HeaderValue::from_static("application/octet-stream")));
assert!(headers.contains(&HeaderValue::from_static("application/json")));
}
#[test]
fn response_builder_header_append_typed() {
let mut res = HttpResponse::Ok();
res.append_header((header::CONTENT_TYPE, mime::APPLICATION_OCTET_STREAM));
res.append_header((header::CONTENT_TYPE, mime::APPLICATION_JSON));
let res = res.finish();
let headers: Vec<_> = res.headers().get_all("Content-Type").cloned().collect();
assert_eq!(headers.len(), 2);
assert!(headers.contains(&HeaderValue::from_static("application/octet-stream")));
assert!(headers.contains(&HeaderValue::from_static("application/json")));
}
}
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