Files
crank/crates/crank-adapter-rest/src/lib.rs
T

99 lines
3.6 KiB
Rust

mod client;
mod error;
mod model;
use async_trait::async_trait;
use crank_core::{
AdapterResponse, DispatchEvidence, ExecutionMode, PreparedRequest, Protocol, ProtocolAdapter,
ProtocolAdapterError, RestTarget, RuntimeRequestContext, Target,
};
pub use client::{ExternalReferenceFetcher, OutboundHttpPolicy, RestAdapter};
pub use error::{ExternalReferenceFetchError, RestAdapterError};
pub use model::{RestRequest, RestResponse};
#[async_trait]
impl ProtocolAdapter for RestAdapter {
fn protocol(&self) -> Protocol {
Protocol::Rest
}
fn supports_mode(&self, mode: ExecutionMode) -> bool {
matches!(mode, ExecutionMode::Unary)
}
async fn invoke_unary(
&self,
target: &Target,
prepared: &PreparedRequest,
context: &RuntimeRequestContext,
) -> Result<AdapterResponse, ProtocolAdapterError> {
let target = rest_target(target)?;
let request = RestRequest {
path_params: prepared.path_params.clone(),
query_params: prepared.query_params.clone(),
headers: prepared.headers.clone(),
trusted_header_names: prepared.trusted_header_names.clone(),
body: prepared.body.clone(),
timeout_ms: prepared.timeout_ms,
};
let response = self.execute_with_context(target, &request, context).await?;
Ok(AdapterResponse {
status_code: response.status_code,
headers: response.headers,
data: response.body.clone(),
body: response.body,
})
}
}
fn rest_target(target: &Target) -> Result<&RestTarget, ProtocolAdapterError> {
match target {
Target::Rest(target) => Ok(target),
}
}
impl From<RestAdapterError> for ProtocolAdapterError {
fn from(value: RestAdapterError) -> Self {
match value {
RestAdapterError::InvalidBaseUrl { .. }
| RestAdapterError::InvalidConfiguration { .. } => Self::InvalidConfiguration,
RestAdapterError::InvalidPathParameter { .. }
| RestAdapterError::InvalidQueryParameter { .. }
| RestAdapterError::InvalidHeaderName { .. }
| RestAdapterError::InvalidHeaderValue { .. } => Self::InvalidPreparedRequest,
RestAdapterError::RedirectNotAllowed => Self::TargetRejected,
RestAdapterError::TargetNotAllowed { .. } => Self::TargetRejected,
RestAdapterError::RequestTooLarge { .. } => Self::RequestTooLarge,
RestAdapterError::ResponseTooLarge { .. } => Self::ResponseTooLarge {
dispatch: DispatchEvidence::MayHaveDispatched,
},
RestAdapterError::Transport { timeout, connect } if timeout => Self::Timeout {
dispatch: if connect {
DispatchEvidence::NotDispatched
} else {
DispatchEvidence::MayHaveDispatched
},
},
RestAdapterError::Transport { connect, .. } => Self::Transport {
dispatch: if connect {
DispatchEvidence::NotDispatched
} else {
DispatchEvidence::MayHaveDispatched
},
},
RestAdapterError::WindowExpired => Self::Timeout {
dispatch: DispatchEvidence::MayHaveDispatched,
},
RestAdapterError::UnexpectedStatus { status, .. } => Self::UnexpectedStatus {
status,
dispatch: DispatchEvidence::MayHaveDispatched,
},
RestAdapterError::InvalidSseEvent => Self::InvalidResponse {
dispatch: DispatchEvidence::MayHaveDispatched,
},
}
}
}