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feat(body): add body::aggregate and body::to_bytes functions

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Adds utility functions to `hyper::body` to help asynchronously
collecting all the buffers of some `HttpBody` into one.

- `aggregate` will collect all into an `impl Buf` without copying the
  contents. This is ideal if you don't need a contiguous buffer.
- `to_bytes` will copy all the data into a single contiguous `Bytes`
  buffer.
This commit is contained in:
Sean McArthur
2019-12-05 17:51:37 -08:00
parent 5a59875742
commit 8ba9a8d2c4
15 changed files with 282 additions and 128 deletions
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8
examples/params.rs
View File

@@ -4,7 +4,6 @@
use hyper::service::{make_service_fn, service_fn};
use hyper::{Body, Method, Request, Response, Server, StatusCode};
use futures_util::StreamExt;
use std::collections::HashMap;
use url::form_urlencoded;
@@ -13,15 +12,12 @@ static MISSING: &[u8] = b"Missing field";
static NOTNUMERIC: &[u8] = b"Number field is not numeric";
// Using service_fn, we can turn this function into a `Service`.
async fn param_example(mut req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
async fn param_example(req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
match (req.method(), req.uri().path()) {
(&Method::GET, "/") | (&Method::GET, "/post") => Ok(Response::new(INDEX.into())),
(&Method::POST, "/post") => {
// Concatenate the body...
let mut b = Vec::new();
while let Some(chunk) = req.body_mut().next().await {
b.extend_from_slice(&chunk?);
}
let b = hyper::body::to_bytes(req.into_body()).await?;
// Parse the request body. form_urlencoded::parse
// always succeeds, but in general parsing may
// fail (for example, an invalid post of json), so