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use std::{error, fmt, time::Duration};
#[cfg(feature = "dyn-clone")]
use dyn_clone::{clone_trait_object, DynClone};
pub use http::{self, Request, Response};
pub type Body = Vec<u8>;
pub const MIME_APPLICATION_JSON: &str = "application/json";
#[cfg(feature = "dyn-clone")]
pub trait Endpoint: DynClone {
type RenderRequestError: error::Error + Send + Sync + 'static;
type ParseResponseOutput;
type ParseResponseError: error::Error + Send + Sync + 'static;
fn render_request(&self) -> Result<Request<Body>, Self::RenderRequestError>;
fn parse_response(
&self,
response: Response<Body>,
) -> Result<Self::ParseResponseOutput, Self::ParseResponseError>;
}
#[cfg(not(feature = "dyn-clone"))]
pub trait Endpoint {
type RenderRequestError: error::Error + Send + Sync + 'static;
type ParseResponseOutput;
type ParseResponseError: error::Error + Send + Sync + 'static;
fn render_request(&self) -> Result<Request<Body>, Self::RenderRequestError>;
fn parse_response(
&self,
response: Response<Body>,
) -> Result<Self::ParseResponseOutput, Self::ParseResponseError>;
}
#[cfg(feature = "dyn-clone")]
clone_trait_object!(<RenderRequestError, ParseResponseOutput, ParseResponseError> Endpoint<RenderRequestError = RenderRequestError, ParseResponseOutput = ParseResponseOutput, ParseResponseError = ParseResponseError>);
impl<RenderRequestError, ParseResponseOutput, ParseResponseError> fmt::Debug
for dyn Endpoint<
RenderRequestError = RenderRequestError,
ParseResponseOutput = ParseResponseOutput,
ParseResponseError = ParseResponseError,
>
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("Endpoint").finish()
}
}
impl<RenderRequestError, ParseResponseOutput, ParseResponseError> fmt::Debug
for dyn Endpoint<
RenderRequestError = RenderRequestError,
ParseResponseOutput = ParseResponseOutput,
ParseResponseError = ParseResponseError,
> + Send
+ Sync
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("Endpoint").finish()
}
}
#[cfg(feature = "dyn-clone")]
pub trait RetryableEndpoint: DynClone {
type RetryReason: Send + Sync + Clone;
type RenderRequestError: error::Error + Send + Sync + 'static;
type ParseResponseOutput;
type ParseResponseError: error::Error + Send + Sync + 'static;
fn render_request(
&self,
retry: Option<&RetryableEndpointRetry<Self::RetryReason>>,
) -> Result<Request<Body>, Self::RenderRequestError>;
fn parse_response(
&self,
response: Response<Body>,
retry: Option<&RetryableEndpointRetry<Self::RetryReason>>,
) -> Result<Result<Self::ParseResponseOutput, Self::RetryReason>, Self::ParseResponseError>;
fn max_retry_count(&self) -> usize {
3
}
fn next_retry_in(&self, retry: &RetryableEndpointRetry<Self::RetryReason>) -> Duration {
match retry.count {
0 | 1 | 2 => Duration::from_millis(500),
_ => Duration::from_secs(1),
}
}
}
#[cfg(not(feature = "dyn-clone"))]
pub trait RetryableEndpoint {
type RetryReason: Send + Sync + Clone;
type RenderRequestError: error::Error + Send + Sync + 'static;
type ParseResponseOutput;
type ParseResponseError: error::Error + Send + Sync + 'static;
fn render_request(
&self,
retry: Option<&RetryableEndpointRetry<Self::RetryReason>>,
) -> Result<Request<Body>, Self::RenderRequestError>;
fn parse_response(
&self,
response: Response<Body>,
retry: Option<&RetryableEndpointRetry<Self::RetryReason>>,
) -> Result<Result<Self::ParseResponseOutput, Self::RetryReason>, Self::ParseResponseError>;
fn max_retry_count(&self) -> usize {
3
}
fn next_retry_in(&self, retry: &RetryableEndpointRetry<Self::RetryReason>) -> Duration {
match retry.count {
0 | 1 | 2 => Duration::from_millis(500),
_ => Duration::from_secs(1),
}
}
}
#[cfg(feature = "dyn-clone")]
clone_trait_object!(<RetryReason, RenderRequestError, ParseResponseOutput, ParseResponseError> RetryableEndpoint<RetryReason = RetryReason, RenderRequestError = RenderRequestError, ParseResponseOutput = ParseResponseOutput, ParseResponseError = ParseResponseError>);
impl<RetryReason, RenderRequestError, ParseResponseOutput, ParseResponseError> fmt::Debug
for dyn RetryableEndpoint<
RetryReason = RetryReason,
RenderRequestError = RenderRequestError,
ParseResponseOutput = ParseResponseOutput,
ParseResponseError = ParseResponseError,
>
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("RetryableEndpoint").finish()
}
}
impl<RetryReason, RenderRequestError, ParseResponseOutput, ParseResponseError> fmt::Debug
for dyn RetryableEndpoint<
RetryReason = RetryReason,
RenderRequestError = RenderRequestError,
ParseResponseOutput = ParseResponseOutput,
ParseResponseError = ParseResponseError,
> + Send
+ Sync
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("RetryableEndpoint").finish()
}
}
pub struct RetryableEndpointRetry<T> {
pub count: usize,
pub reason: T,
}
impl<T> fmt::Debug for RetryableEndpointRetry<T>
where
T: fmt::Debug,
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("RetryableEndpointRetry")
.field("count", &self.count)
.field("reason", &self.reason)
.finish()
}
}
impl<T> RetryableEndpointRetry<T> {
pub fn new(count: usize, reason: T) -> Self {
Self { count, reason }
}
}