aws_sdk_dynamodb/operation/
get_item.rs

1// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
2/// Orchestration and serialization glue logic for `GetItem`.
3#[derive(::std::clone::Clone, ::std::default::Default, ::std::fmt::Debug)]
4#[non_exhaustive]
5pub struct GetItem;
6impl GetItem {
7    /// Creates a new `GetItem`
8    pub fn new() -> Self {
9        Self
10    }
11    pub(crate) async fn orchestrate(
12        runtime_plugins: &::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins,
13        input: crate::operation::get_item::GetItemInput,
14    ) -> ::std::result::Result<
15        crate::operation::get_item::GetItemOutput,
16        ::aws_smithy_runtime_api::client::result::SdkError<
17            crate::operation::get_item::GetItemError,
18            ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
19        >,
20    > {
21        let map_err =
22            |err: ::aws_smithy_runtime_api::client::result::SdkError<
23                ::aws_smithy_runtime_api::client::interceptors::context::Error,
24                ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
25            >| { err.map_service_error(|err| err.downcast::<crate::operation::get_item::GetItemError>().expect("correct error type")) };
26        let context = Self::orchestrate_with_stop_point(runtime_plugins, input, ::aws_smithy_runtime::client::orchestrator::StopPoint::None)
27            .await
28            .map_err(map_err)?;
29        let output = context.finalize().map_err(map_err)?;
30        ::std::result::Result::Ok(
31            output
32                .downcast::<crate::operation::get_item::GetItemOutput>()
33                .expect("correct output type"),
34        )
35    }
36
37    pub(crate) async fn orchestrate_with_stop_point(
38        runtime_plugins: &::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins,
39        input: crate::operation::get_item::GetItemInput,
40        stop_point: ::aws_smithy_runtime::client::orchestrator::StopPoint,
41    ) -> ::std::result::Result<
42        ::aws_smithy_runtime_api::client::interceptors::context::InterceptorContext,
43        ::aws_smithy_runtime_api::client::result::SdkError<
44            ::aws_smithy_runtime_api::client::interceptors::context::Error,
45            ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
46        >,
47    > {
48        let input = ::aws_smithy_runtime_api::client::interceptors::context::Input::erase(input);
49        use ::tracing::Instrument;
50        ::aws_smithy_runtime::client::orchestrator::invoke_with_stop_point("DynamoDB", "GetItem", input, runtime_plugins, stop_point)
51            // Create a parent span for the entire operation. Includes a random, internal-only,
52            // seven-digit ID for the operation orchestration so that it can be correlated in the logs.
53            .instrument(::tracing::debug_span!(
54                "DynamoDB.GetItem",
55                "rpc.service" = "DynamoDB",
56                "rpc.method" = "GetItem",
57                "sdk_invocation_id" = ::fastrand::u32(1_000_000..10_000_000),
58                "rpc.system" = "aws-api",
59            ))
60            .await
61    }
62
63    pub(crate) fn operation_runtime_plugins(
64        client_runtime_plugins: ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins,
65        client_config: &crate::config::Config,
66        config_override: ::std::option::Option<crate::config::Builder>,
67    ) -> ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins {
68        let mut runtime_plugins = client_runtime_plugins.with_operation_plugin(Self::new());
69
70        if let ::std::option::Option::Some(config_override) = config_override {
71            for plugin in config_override.runtime_plugins.iter().cloned() {
72                runtime_plugins = runtime_plugins.with_operation_plugin(plugin);
73            }
74            runtime_plugins = runtime_plugins.with_operation_plugin(crate::config::ConfigOverrideRuntimePlugin::new(
75                config_override,
76                client_config.config.clone(),
77                &client_config.runtime_components,
78            ));
79        }
80        runtime_plugins
81    }
82}
83impl ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugin for GetItem {
84    fn config(&self) -> ::std::option::Option<::aws_smithy_types::config_bag::FrozenLayer> {
85        let mut cfg = ::aws_smithy_types::config_bag::Layer::new("GetItem");
86
87        cfg.store_put(::aws_smithy_runtime_api::client::ser_de::SharedRequestSerializer::new(
88            GetItemRequestSerializer,
89        ));
90        cfg.store_put(::aws_smithy_runtime_api::client::ser_de::SharedResponseDeserializer::new(
91            GetItemResponseDeserializer,
92        ));
93
94        cfg.store_put(::aws_smithy_runtime_api::client::auth::AuthSchemeOptionResolverParams::new(
95            crate::config::auth::Params::builder()
96                .operation_name("GetItem")
97                .build()
98                .expect("required fields set"),
99        ));
100
101        cfg.store_put(::aws_smithy_runtime_api::client::orchestrator::Metadata::new("GetItem", "DynamoDB"));
102        let mut signing_options = ::aws_runtime::auth::SigningOptions::default();
103        signing_options.double_uri_encode = true;
104        signing_options.content_sha256_header = false;
105        signing_options.normalize_uri_path = true;
106        signing_options.payload_override = None;
107
108        cfg.store_put(::aws_runtime::auth::SigV4OperationSigningConfig {
109            signing_options,
110            ..::std::default::Default::default()
111        });
112
113        ::std::option::Option::Some(cfg.freeze())
114    }
115
116    fn runtime_components(
117        &self,
118        _: &::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder,
119    ) -> ::std::borrow::Cow<'_, ::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder> {
120        #[allow(unused_mut)]
121        let mut rcb = ::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder::new("GetItem")
122            .with_interceptor(::aws_smithy_runtime::client::stalled_stream_protection::StalledStreamProtectionInterceptor::default())
123            .with_interceptor(GetItemEndpointParamsInterceptor)
124            .with_retry_classifier(::aws_smithy_runtime::client::retries::classifiers::TransientErrorClassifier::<
125                crate::operation::get_item::GetItemError,
126            >::new())
127            .with_retry_classifier(::aws_smithy_runtime::client::retries::classifiers::ModeledAsRetryableClassifier::<
128                crate::operation::get_item::GetItemError,
129            >::new())
130            .with_retry_classifier(::aws_runtime::retries::classifiers::AwsErrorCodeClassifier::<
131                crate::operation::get_item::GetItemError,
132            >::new());
133
134        ::std::borrow::Cow::Owned(rcb)
135    }
136}
137
138#[derive(Debug)]
139struct GetItemResponseDeserializer;
140impl ::aws_smithy_runtime_api::client::ser_de::DeserializeResponse for GetItemResponseDeserializer {
141    fn deserialize_nonstreaming(
142        &self,
143        response: &::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
144    ) -> ::aws_smithy_runtime_api::client::interceptors::context::OutputOrError {
145        let (success, status) = (response.status().is_success(), response.status().as_u16());
146        let headers = response.headers();
147        let body = response.body().bytes().expect("body loaded");
148        #[allow(unused_mut)]
149        let mut force_error = false;
150        ::tracing::debug!(request_id = ?::aws_types::request_id::RequestId::request_id(response));
151        let parse_result = if !success && status != 200 || force_error {
152            crate::protocol_serde::shape_get_item::de_get_item_http_error(status, headers, body)
153        } else {
154            crate::protocol_serde::shape_get_item::de_get_item_http_response(status, headers, body)
155        };
156        crate::protocol_serde::type_erase_result(parse_result)
157    }
158}
159#[derive(Debug)]
160struct GetItemRequestSerializer;
161impl ::aws_smithy_runtime_api::client::ser_de::SerializeRequest for GetItemRequestSerializer {
162    #[allow(unused_mut, clippy::let_and_return, clippy::needless_borrow, clippy::useless_conversion)]
163    fn serialize_input(
164        &self,
165        input: ::aws_smithy_runtime_api::client::interceptors::context::Input,
166        _cfg: &mut ::aws_smithy_types::config_bag::ConfigBag,
167    ) -> ::std::result::Result<::aws_smithy_runtime_api::client::orchestrator::HttpRequest, ::aws_smithy_runtime_api::box_error::BoxError> {
168        let input = input.downcast::<crate::operation::get_item::GetItemInput>().expect("correct type");
169        let _header_serialization_settings = _cfg
170            .load::<crate::serialization_settings::HeaderSerializationSettings>()
171            .cloned()
172            .unwrap_or_default();
173        let mut request_builder = {
174            fn uri_base(
175                _input: &crate::operation::get_item::GetItemInput,
176                output: &mut ::std::string::String,
177            ) -> ::std::result::Result<(), ::aws_smithy_types::error::operation::BuildError> {
178                use ::std::fmt::Write as _;
179                ::std::write!(output, "/").expect("formatting should succeed");
180                ::std::result::Result::Ok(())
181            }
182            #[allow(clippy::unnecessary_wraps)]
183            fn update_http_builder(
184                input: &crate::operation::get_item::GetItemInput,
185                builder: ::http::request::Builder,
186            ) -> ::std::result::Result<::http::request::Builder, ::aws_smithy_types::error::operation::BuildError> {
187                let mut uri = ::std::string::String::new();
188                uri_base(input, &mut uri)?;
189                ::std::result::Result::Ok(builder.method("POST").uri(uri))
190            }
191            let mut builder = update_http_builder(&input, ::http::request::Builder::new())?;
192            builder = _header_serialization_settings.set_default_header(builder, ::http::header::CONTENT_TYPE, "application/x-amz-json-1.0");
193            builder = _header_serialization_settings.set_default_header(
194                builder,
195                ::http::header::HeaderName::from_static("x-amz-target"),
196                "DynamoDB_20120810.GetItem",
197            );
198            builder
199        };
200        let body = ::aws_smithy_types::body::SdkBody::from(crate::protocol_serde::shape_get_item::ser_get_item_input(&input)?);
201        if let Some(content_length) = body.content_length() {
202            let content_length = content_length.to_string();
203            request_builder = _header_serialization_settings.set_default_header(request_builder, ::http::header::CONTENT_LENGTH, &content_length);
204        }
205        ::std::result::Result::Ok(request_builder.body(body).expect("valid request").try_into().unwrap())
206    }
207}
208#[derive(Debug)]
209struct GetItemEndpointParamsInterceptor;
210
211impl ::aws_smithy_runtime_api::client::interceptors::Intercept for GetItemEndpointParamsInterceptor {
212    fn name(&self) -> &'static str {
213        "GetItemEndpointParamsInterceptor"
214    }
215
216    fn read_before_execution(
217        &self,
218        context: &::aws_smithy_runtime_api::client::interceptors::context::BeforeSerializationInterceptorContextRef<
219            '_,
220            ::aws_smithy_runtime_api::client::interceptors::context::Input,
221            ::aws_smithy_runtime_api::client::interceptors::context::Output,
222            ::aws_smithy_runtime_api::client::interceptors::context::Error,
223        >,
224        cfg: &mut ::aws_smithy_types::config_bag::ConfigBag,
225    ) -> ::std::result::Result<(), ::aws_smithy_runtime_api::box_error::BoxError> {
226        let _input = context
227            .input()
228            .downcast_ref::<GetItemInput>()
229            .ok_or("failed to downcast to GetItemInput")?;
230
231        let params = crate::config::endpoint::Params::builder()
232            .set_region(cfg.load::<::aws_types::region::Region>().map(|r| r.as_ref().to_owned()))
233            .set_use_dual_stack(cfg.load::<::aws_types::endpoint_config::UseDualStack>().map(|ty| ty.0))
234            .set_use_fips(cfg.load::<::aws_types::endpoint_config::UseFips>().map(|ty| ty.0))
235            .set_endpoint(cfg.load::<::aws_types::endpoint_config::EndpointUrl>().map(|ty| ty.0.clone()))
236            .set_account_id_endpoint_mode(::std::option::Option::Some(
237                cfg.load::<::aws_types::endpoint_config::AccountIdEndpointMode>()
238                    .cloned()
239                    .unwrap_or_default()
240                    .to_string(),
241            ))
242            .set_resource_arn(Some(
243                _input
244                    .table_name
245                    .clone()
246                    .filter(|f| !AsRef::<str>::as_ref(f).trim().is_empty())
247                    .ok_or_else(|| ::aws_smithy_types::error::operation::BuildError::missing_field("table_name", "A required field was not set"))?,
248            ))
249            .build()
250            .map_err(|err| {
251                ::aws_smithy_runtime_api::client::interceptors::error::ContextAttachedError::new("endpoint params could not be built", err)
252            })?;
253        cfg.interceptor_state()
254            .store_put(::aws_smithy_runtime_api::client::endpoint::EndpointResolverParams::new(params));
255        ::std::result::Result::Ok(())
256    }
257}
258
259// The get_* functions below are generated from JMESPath expressions in the
260// operationContextParams trait. They target the operation's input shape.
261
262/// Error type for the `GetItemError` operation.
263#[non_exhaustive]
264#[derive(::std::fmt::Debug)]
265pub enum GetItemError {
266    /// <p>An error occurred on the server side.</p>
267    InternalServerError(crate::types::error::InternalServerError),
268    #[allow(missing_docs)] // documentation missing in model
269    InvalidEndpointException(crate::types::error::InvalidEndpointException),
270    /// <p>Your request rate is too high. The Amazon Web Services SDKs for DynamoDB automatically retry requests that receive this exception. Your request is eventually successful, unless your retry queue is too large to finish. Reduce the frequency of requests and use exponential backoff. For more information, go to <a href="https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.Errors.html#Programming.Errors.RetryAndBackoff">Error Retries and Exponential Backoff</a> in the <i>Amazon DynamoDB Developer Guide</i>.</p>
271    ProvisionedThroughputExceededException(crate::types::error::ProvisionedThroughputExceededException),
272    /// <p>Throughput exceeds the current throughput quota for your account. Please contact <a href="https://aws.amazon.com/support">Amazon Web ServicesSupport</a> to request a quota increase.</p>
273    RequestLimitExceeded(crate::types::error::RequestLimitExceeded),
274    /// <p>The operation tried to access a nonexistent table or index. The resource might not be specified correctly, or its status might not be <code>ACTIVE</code>.</p>
275    ResourceNotFoundException(crate::types::error::ResourceNotFoundException),
276    /// An unexpected error occurred (e.g., invalid JSON returned by the service or an unknown error code).
277    #[deprecated(note = "Matching `Unhandled` directly is not forwards compatible. Instead, match using a \
278    variable wildcard pattern and check `.code()`:
279     \
280    &nbsp;&nbsp;&nbsp;`err if err.code() == Some(\"SpecificExceptionCode\") => { /* handle the error */ }`
281     \
282    See [`ProvideErrorMetadata`](#impl-ProvideErrorMetadata-for-GetItemError) for what information is available for the error.")]
283    Unhandled(crate::error::sealed_unhandled::Unhandled),
284}
285impl GetItemError {
286    /// Creates the `GetItemError::Unhandled` variant from any error type.
287    pub fn unhandled(
288        err: impl ::std::convert::Into<::std::boxed::Box<dyn ::std::error::Error + ::std::marker::Send + ::std::marker::Sync + 'static>>,
289    ) -> Self {
290        Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
291            source: err.into(),
292            meta: ::std::default::Default::default(),
293        })
294    }
295
296    /// Creates the `GetItemError::Unhandled` variant from an [`ErrorMetadata`](::aws_smithy_types::error::ErrorMetadata).
297    pub fn generic(err: ::aws_smithy_types::error::ErrorMetadata) -> Self {
298        Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
299            source: err.clone().into(),
300            meta: err,
301        })
302    }
303    ///
304    /// Returns error metadata, which includes the error code, message,
305    /// request ID, and potentially additional information.
306    ///
307    pub fn meta(&self) -> &::aws_smithy_types::error::ErrorMetadata {
308        match self {
309            Self::InternalServerError(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
310            Self::InvalidEndpointException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
311            Self::ProvisionedThroughputExceededException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
312            Self::RequestLimitExceeded(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
313            Self::ResourceNotFoundException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
314            Self::Unhandled(e) => &e.meta,
315        }
316    }
317    /// Returns `true` if the error kind is `GetItemError::InternalServerError`.
318    pub fn is_internal_server_error(&self) -> bool {
319        matches!(self, Self::InternalServerError(_))
320    }
321    /// Returns `true` if the error kind is `GetItemError::InvalidEndpointException`.
322    pub fn is_invalid_endpoint_exception(&self) -> bool {
323        matches!(self, Self::InvalidEndpointException(_))
324    }
325    /// Returns `true` if the error kind is `GetItemError::ProvisionedThroughputExceededException`.
326    pub fn is_provisioned_throughput_exceeded_exception(&self) -> bool {
327        matches!(self, Self::ProvisionedThroughputExceededException(_))
328    }
329    /// Returns `true` if the error kind is `GetItemError::RequestLimitExceeded`.
330    pub fn is_request_limit_exceeded(&self) -> bool {
331        matches!(self, Self::RequestLimitExceeded(_))
332    }
333    /// Returns `true` if the error kind is `GetItemError::ResourceNotFoundException`.
334    pub fn is_resource_not_found_exception(&self) -> bool {
335        matches!(self, Self::ResourceNotFoundException(_))
336    }
337}
338impl ::std::error::Error for GetItemError {
339    fn source(&self) -> ::std::option::Option<&(dyn ::std::error::Error + 'static)> {
340        match self {
341            Self::InternalServerError(_inner) => ::std::option::Option::Some(_inner),
342            Self::InvalidEndpointException(_inner) => ::std::option::Option::Some(_inner),
343            Self::ProvisionedThroughputExceededException(_inner) => ::std::option::Option::Some(_inner),
344            Self::RequestLimitExceeded(_inner) => ::std::option::Option::Some(_inner),
345            Self::ResourceNotFoundException(_inner) => ::std::option::Option::Some(_inner),
346            Self::Unhandled(_inner) => ::std::option::Option::Some(&*_inner.source),
347        }
348    }
349}
350impl ::std::fmt::Display for GetItemError {
351    fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
352        match self {
353            Self::InternalServerError(_inner) => _inner.fmt(f),
354            Self::InvalidEndpointException(_inner) => _inner.fmt(f),
355            Self::ProvisionedThroughputExceededException(_inner) => _inner.fmt(f),
356            Self::RequestLimitExceeded(_inner) => _inner.fmt(f),
357            Self::ResourceNotFoundException(_inner) => _inner.fmt(f),
358            Self::Unhandled(_inner) => {
359                if let ::std::option::Option::Some(code) = ::aws_smithy_types::error::metadata::ProvideErrorMetadata::code(self) {
360                    write!(f, "unhandled error ({code})")
361                } else {
362                    f.write_str("unhandled error")
363                }
364            }
365        }
366    }
367}
368impl ::aws_smithy_types::retry::ProvideErrorKind for GetItemError {
369    fn code(&self) -> ::std::option::Option<&str> {
370        ::aws_smithy_types::error::metadata::ProvideErrorMetadata::code(self)
371    }
372    fn retryable_error_kind(&self) -> ::std::option::Option<::aws_smithy_types::retry::ErrorKind> {
373        ::std::option::Option::None
374    }
375}
376impl ::aws_smithy_types::error::metadata::ProvideErrorMetadata for GetItemError {
377    fn meta(&self) -> &::aws_smithy_types::error::ErrorMetadata {
378        match self {
379            Self::InternalServerError(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
380            Self::InvalidEndpointException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
381            Self::ProvisionedThroughputExceededException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
382            Self::RequestLimitExceeded(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
383            Self::ResourceNotFoundException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
384            Self::Unhandled(_inner) => &_inner.meta,
385        }
386    }
387}
388impl ::aws_smithy_runtime_api::client::result::CreateUnhandledError for GetItemError {
389    fn create_unhandled_error(
390        source: ::std::boxed::Box<dyn ::std::error::Error + ::std::marker::Send + ::std::marker::Sync + 'static>,
391        meta: ::std::option::Option<::aws_smithy_types::error::ErrorMetadata>,
392    ) -> Self {
393        Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
394            source,
395            meta: meta.unwrap_or_default(),
396        })
397    }
398}
399impl ::aws_types::request_id::RequestId for crate::operation::get_item::GetItemError {
400    fn request_id(&self) -> Option<&str> {
401        self.meta().request_id()
402    }
403}
404
405pub use crate::operation::get_item::_get_item_output::GetItemOutput;
406
407pub use crate::operation::get_item::_get_item_input::GetItemInput;
408
409mod _get_item_input;
410
411mod _get_item_output;
412
413/// Builders
414pub mod builders;
aws_sdk_dynamodb/operation/get_item.rs

aws_sdk_dynamodb/operation/
get_item.rs
