18 releases
0.6.3 | Jul 13, 2024 |
---|---|
0.6.2 | Jan 28, 2024 |
0.6.1 | Sep 21, 2023 |
0.6.0 | Jul 28, 2023 |
0.3.1 | Feb 19, 2022 |
#1338 in Network programming
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Used in 3 crates
145KB
4K
SLoC
DXR: declarative XML-RPC
The dxr project provides crates for writing XML-RPC API clients and servers in Rust. The goal is to match the XML-RPC Specification -- even though some parts of it are under-specified -- and provide optional support for some common non-standard extensions.
Features
- (de)serialization support for converting XML-RPC XML strings into strongly-typed Rust values
- conversion traits between XML-RPC values and Rust primitives, arrays, slices, byte arrays, tuples, hashmaps, and custom structs (via derive macros)
- built-in XML-escaping and un-escaping of string arguments
- built-in date & time parsing for the
dateTime.iso8861
value type - built-in base64 en- and decoding of byte vectors for the
base64
type - optional support for (non-standard)
<i8>
(64-bit unsigned integer) and<nil/>
values - support for arbitrary method call argument types without needing to convert values first (for up to 8 arguments; support for more could be implemented, if needed)
- basic support for both XML-RPC clients (with
reqwest
) and servers (withaxum
)
All conversion methods (both between Rust XML-RPC values and XML strings, and between
Rust primitives and Rust XML-RPC values) are extensively checked for correctness by unit
tests and property-based tests using quickcheck
.
Limitations
Only valid UTF-8 is currently supported in both XML-RPC requests and responses. Support for other encodings can be handled manually by implementing a custom client or server which handles other encodings transparently.
Components
dxr
: implementation of XML-RPC types, conversion traits between XML-RPC types and Rust types, and (de)serialization implementations for converting between XML strings and XML-RPC valuesdxr_derive
:TryFromDXR
andTryToDxr
derive macros for custom data typesdxr_client
: XML-RPC client implementation usingreqwest
dxr_server
: generic XML-RPC server functionality
Why another crate for XML-RPC?
Searching for xml-rpc
on crates.io yields a few results, but they all did not fit my
use case, or were very hard to use. Either they didn't support implementing both clients
and servers, or no easy conversion methods from Rust types to XML-RPC types was available.
And none of the crates supports (de)serializing both Rust types and custom user-defined
types by using derive macros.
Goals
Because of this state of the XML-RPC crate ecosystem in Rust, the defining purpose of the
dxr
crate is that it should be opinionated, but also very easy to use, for implementing
both XML-RPC clients and servers, with first-class support for (de)serializing custom
types, in addition to built-in support for transparently converting Rust primitives to
XML-RPC values.
Additionally, the crate is built on top of best-in-class (in my opinion) libraries for
(de)serializing XML (quick-xml
), HTTP client side (reqwest
), HTTP server side
(axum
).
Dependencies
~2.7–4MB
~69K SLoC