Struct ResponsePolicy

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pub struct ResponsePolicy { /* private fields */ }

Expand description

Complete checked-response policy.

Implementations§

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impl ResponsePolicy

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pub fn new( success_statuses: &'static [StatusCode], content_type: ContentTypePolicy, body: ResponseBodyPolicy, max_body_bytes: usize, ) -> Result<Self, ResponsePolicyValidationError>

Creates a complete policy without implicit status, media, or body defaults.

Examples found in repository ?

examples/prepared_request.rs (lines 50-55)

31    fn prepare<'storage>(
32        &self,
33        storage: PreparationStorage<'storage>,
34    ) -> Result<PreparedRequest<'storage>, Self::Error> {
35        let (target_storage, _body_storage) = storage.into_parts();
36        let target = target_storage
37            .get_mut(..17)
38            .ok_or(PrepareError::TargetBuffer)?;
39        target.copy_from_slice(b"/resources?page=1");
40        let target = core::str::from_utf8(target).map_err(|_| PrepareError::InvalidTarget)?;
41        let target = RequestTarget::new(target).map_err(|_| PrepareError::InvalidTarget)?;
42        let request = TransportRequest::new(Method::Get, target);
43        let metadata = OperationMetadata::new(
44            OperationImpact::ReadOnly,
45            RequestSemantics::Safe,
46            RetryEligibility::ExplicitPolicy,
47            CostIntent::NoKnownCost,
48        )
49        .map_err(|_| PrepareError::InvalidMetadata)?;
50        let response_policy = ResponsePolicy::new(
51            &OK_STATUS,
52            ContentTypePolicy::Required(&JSON_MEDIA),
53            ResponseBodyPolicy::Required,
54            65_536,
55        )
56        .map_err(|_| PrepareError::InvalidResponsePolicy)?;
57        let endpoint =
58            EndpointIdentity::new(EndpointScheme::Https, "api.example.invalid", 443, "/v1")
59                .map_err(|_| PrepareError::InvalidEndpoint)?;
60        Ok(PreparedRequest::new(
61            request,
62            ProviderService::new(Provider::Hetzner, ApiFamily::Cloud, endpoint),
63            metadata,
64            response_policy,
65        ))
66    }

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pub const fn success_statuses(self) -> &'static [StatusCode]

Returns expected success statuses.

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pub const fn content_type_policy(self) -> ContentTypePolicy

Returns response content-type policy.

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pub const fn body_policy(self) -> ResponseBodyPolicy

Returns response-body policy.

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pub const fn max_body_bytes(self) -> usize

Returns maximum admitted initialized response bytes.

Examples found in repository ?

examples/prepared_request.rs (line 77)

69fn main() {
70    let mut target = [0_u8; MAX_REQUEST_TARGET_BYTES];
71    let mut body = [0_u8; 1];
72    let prepared = ListResources.prepare(PreparationStorage::new(&mut target, &mut body));
73    let Ok(prepared) = prepared else { return };
74
75    assert_eq!(prepared.transport_request().method(), Method::Get);
76    assert_eq!(prepared.metadata().impact(), OperationImpact::ReadOnly);
77    assert_eq!(prepared.response_policy().max_body_bytes(), 65_536);
78}