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 65-70)

46    fn prepare<'storage>(
47        &self,
48        storage: PreparationStorage<'storage>,
49    ) -> Result<PreparedRequest<'storage>, Self::Error> {
50        let (target_storage, _body_storage) = storage.into_parts();
51        let target = target_storage
52            .get_mut(..17)
53            .ok_or(PrepareError::TargetBuffer)?;
54        target.copy_from_slice(b"/resources?page=1");
55        let target = core::str::from_utf8(target).map_err(|_| PrepareError::InvalidTarget)?;
56        let target = RequestTarget::new(target).map_err(|_| PrepareError::InvalidTarget)?;
57        let request = TransportRequest::new(Method::Get, target);
58        let metadata = OperationMetadata::new(
59            OperationImpact::ReadOnly,
60            RequestSemantics::Safe,
61            RetryEligibility::ExplicitPolicy,
62            CostIntent::NoKnownCost,
63        )
64        .map_err(|_| PrepareError::InvalidMetadata)?;
65        let response_policy = ResponsePolicy::new(
66            &OK_STATUS,
67            ContentTypePolicy::Required(&JSON_MEDIA),
68            ResponseBodyPolicy::Required,
69            65_536,
70        )
71        .map_err(|_| PrepareError::InvalidResponsePolicy)?;
72        let endpoint =
73            EndpointIdentity::new(EndpointScheme::Https, "api.example.invalid", 443, "/v1")
74                .map_err(|_| PrepareError::InvalidEndpoint)?;
75        Ok(PreparedRequest::new(
76            request,
77            ProviderService::from_marker::<ComputeService>(EndpointPolicy::fixed(endpoint)),
78            metadata,
79            response_policy,
80        ))
81    }

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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 92)

84fn main() {
85    let mut target = [0_u8; MAX_REQUEST_TARGET_BYTES];
86    let mut body = [0_u8; 1];
87    let prepared = ListResources.prepare(PreparationStorage::new(&mut target, &mut body));
88    let Ok(prepared) = prepared else { return };
89
90    assert_eq!(prepared.transport_request().method(), Method::Get);
91    assert_eq!(prepared.metadata().impact(), OperationImpact::ReadOnly);
92    assert_eq!(prepared.response_policy().max_body_bytes(), 65_536);
93}