reqwest | An easy and powerful Rust HTTP Client | HTTP library
kandi X-RAY | reqwest Summary
kandi X-RAY | reqwest Summary
An ergonomic, batteries-included HTTP Client for Rust.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of reqwest
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Trending Discussions on reqwest
QUESTION
I am new to rust, and trying to learn it after python, and have faced to problem in one of the simplest tasks.
For simplicity I want to write function to get data(in this example - text) from http response.
src/main.rs
ANSWER
Answered 2022-Apr-09 at 10:02The question mark operator passes on an intermediate Result::Err value by returning it. This means that the function must have Result as its return type. But at the end of the function you try to return a String. A String is not a Result variant, but you can make it into one by wrapping it in Ok.
Alternatively if you want do not mind panics, then instead of '?' you could use '.unwrap()' and then your return type could stay String.
QUESTION
I have a function to download a file which is async:
...ANSWER
Answered 2022-Feb-14 at 18:37An established pattern for this is here.
From a synchronous block, build a new runtime then call block_on()
on it:
QUESTION
I have an actor that runs on a regular interval. It worked until I tried to add an HTTP request using reqwest
...ANSWER
Answered 2022-Mar-16 at 21:42I finally found 2 solutions:
Solution 1QUESTION
I'm trying to create a Printing Server in rust and face a problem when trying to send JSON as a response.
I've found on the Rocket documentation that is really easy to send JSON as a response: You just have to use the Serde library.
Unfortunatly, that wasn't so simple for me...
Here is my current code :
...ANSWER
Answered 2021-Aug-06 at 14:23You are using rocket 0.5.0-rc.1 and rocket_contrib 0.4.10. While Json
from rocket_contrib does implement Responder
, it implements the Responder
trait of Rocket v4, not that of Rocket v5.
In Rocket v5, Json
is not part of rocket_contib
anymore, but included in the rocket
crate (note that you need to enable the json
feature on the rocket
crate):
QUESTION
I want to make a request in some API, so I made this:
...ANSWER
Answered 2022-Jan-24 at 21:00Right now your address_by_alias
function is returning the unit-type (), so there's no way to compare () with a &str
and receive true
. You'll need to modify the return value of address_by_alias
.
You can return the response JSON received from the request as a HashMap:
QUESTION
Sorry to ask such a basic question, there's little info about this in Stack Overflow and GitHub. This must be something silly, but I'm not getting it.
I'm trying to send via JavaScript's fetch
to a Rust post endpoint with Rocket 0.5 RC1. But I'm getting hit by:
No matching routes for POST /api/favorites application/json.
Here's the complete log:
...ANSWER
Answered 2022-Jan-23 at 05:46You seem to be sending JSON
from JavaScript but are expecting Form
parameters on the server.
You need to change input: Form
with input: Json
.
QUESTION
I'm trying to convert the result of a reqwest file download in to a type which implements the Read
trait. Reqwest has given back a Bytes
type. Bytes does not seem to implement Read
trait but in the same library there is Buf
which does implement Read
.
I have been trying to find a way to convert Bytes
to Buf
but I have not found a way. Am I going about this the right way if I want to get something which implements Read
and is there a way to do it by converting Bytes
to Buf
?
ANSWER
Answered 2022-Jan-01 at 10:23QUESTION
for downloading with reqwest and tokio and progress I am using the code below
...ANSWER
Answered 2021-Dec-08 at 11:59You can create an async_stream
and yield chunks of the input to upload:
QUESTION
ANSWER
Answered 2021-Aug-08 at 09:15Let's look at this piece by piece:
QUESTION
I need decompress and unpack big .tar.gz files (e.g. ~5Gb) in download process without save an archive file on disk. I use reqwest crate for downloading files, flate2 crate for decompressing and tar crate for unpacking. I try to do it with tar.gz format. But there are the zip and tar.bz2 formats available. (Which one is easier to work with?) It seems that I managed to implement this, but unexpectedly unpacking ended with an error:
...ANSWER
Answered 2021-Nov-14 at 21:47Rust has a std::io::BufRead
trait. It manages an internal buffer and can be filled and consumed, which makes it great for passing data without intermediate collect
s.
As reqwest.Response
implements Read
, we can just make it into a BufReader
and pass it to flate2::bufread::GzDecoder
.
Your problem is that GzDecoder::new
expects everything passed to it to be a complete archive, but anything other than the first chunk obviously are not.
Minimal example (using the blocking API for simplicity):
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Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
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