aws_sdk_connect/operation/
delete_user.rs

1// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
2/// Orchestration and serialization glue logic for `DeleteUser`.
3#[derive(::std::clone::Clone, ::std::default::Default, ::std::fmt::Debug)]
4#[non_exhaustive]
5pub struct DeleteUser;
6impl DeleteUser {
7    /// Creates a new `DeleteUser`
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::delete_user::DeleteUserInput,
14    ) -> ::std::result::Result<
15        crate::operation::delete_user::DeleteUserOutput,
16        ::aws_smithy_runtime_api::client::result::SdkError<
17            crate::operation::delete_user::DeleteUserError,
18            ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
19        >,
20    > {
21        let map_err = |err: ::aws_smithy_runtime_api::client::result::SdkError<
22            ::aws_smithy_runtime_api::client::interceptors::context::Error,
23            ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
24        >| {
25            err.map_service_error(|err| {
26                err.downcast::<crate::operation::delete_user::DeleteUserError>()
27                    .expect("correct error type")
28            })
29        };
30        let context = Self::orchestrate_with_stop_point(runtime_plugins, input, ::aws_smithy_runtime::client::orchestrator::StopPoint::None)
31            .await
32            .map_err(map_err)?;
33        let output = context.finalize().map_err(map_err)?;
34        ::std::result::Result::Ok(
35            output
36                .downcast::<crate::operation::delete_user::DeleteUserOutput>()
37                .expect("correct output type"),
38        )
39    }
40
41    pub(crate) async fn orchestrate_with_stop_point(
42        runtime_plugins: &::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins,
43        input: crate::operation::delete_user::DeleteUserInput,
44        stop_point: ::aws_smithy_runtime::client::orchestrator::StopPoint,
45    ) -> ::std::result::Result<
46        ::aws_smithy_runtime_api::client::interceptors::context::InterceptorContext,
47        ::aws_smithy_runtime_api::client::result::SdkError<
48            ::aws_smithy_runtime_api::client::interceptors::context::Error,
49            ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
50        >,
51    > {
52        let input = ::aws_smithy_runtime_api::client::interceptors::context::Input::erase(input);
53        use ::tracing::Instrument;
54        ::aws_smithy_runtime::client::orchestrator::invoke_with_stop_point("Connect", "DeleteUser", input, runtime_plugins, stop_point)
55            // Create a parent span for the entire operation. Includes a random, internal-only,
56            // seven-digit ID for the operation orchestration so that it can be correlated in the logs.
57            .instrument(::tracing::debug_span!(
58                "Connect.DeleteUser",
59                "rpc.service" = "Connect",
60                "rpc.method" = "DeleteUser",
61                "sdk_invocation_id" = ::fastrand::u32(1_000_000..10_000_000),
62                "rpc.system" = "aws-api",
63            ))
64            .await
65    }
66
67    pub(crate) fn operation_runtime_plugins(
68        client_runtime_plugins: ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins,
69        client_config: &crate::config::Config,
70        config_override: ::std::option::Option<crate::config::Builder>,
71    ) -> ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins {
72        let mut runtime_plugins = client_runtime_plugins.with_operation_plugin(Self::new());
73
74        if let ::std::option::Option::Some(config_override) = config_override {
75            for plugin in config_override.runtime_plugins.iter().cloned() {
76                runtime_plugins = runtime_plugins.with_operation_plugin(plugin);
77            }
78            runtime_plugins = runtime_plugins.with_operation_plugin(crate::config::ConfigOverrideRuntimePlugin::new(
79                config_override,
80                client_config.config.clone(),
81                &client_config.runtime_components,
82            ));
83        }
84        runtime_plugins
85    }
86}
87impl ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugin for DeleteUser {
88    fn config(&self) -> ::std::option::Option<::aws_smithy_types::config_bag::FrozenLayer> {
89        let mut cfg = ::aws_smithy_types::config_bag::Layer::new("DeleteUser");
90
91        cfg.store_put(::aws_smithy_runtime_api::client::ser_de::SharedRequestSerializer::new(
92            DeleteUserRequestSerializer,
93        ));
94        cfg.store_put(::aws_smithy_runtime_api::client::ser_de::SharedResponseDeserializer::new(
95            DeleteUserResponseDeserializer,
96        ));
97
98        cfg.store_put(::aws_smithy_runtime_api::client::auth::AuthSchemeOptionResolverParams::new(
99            crate::config::auth::Params::builder()
100                .operation_name("DeleteUser")
101                .build()
102                .expect("required fields set"),
103        ));
104
105        cfg.store_put(::aws_smithy_runtime_api::client::orchestrator::Metadata::new("DeleteUser", "Connect"));
106        let mut signing_options = ::aws_runtime::auth::SigningOptions::default();
107        signing_options.double_uri_encode = true;
108        signing_options.content_sha256_header = false;
109        signing_options.normalize_uri_path = true;
110        signing_options.payload_override = None;
111
112        cfg.store_put(::aws_runtime::auth::SigV4OperationSigningConfig {
113            signing_options,
114            ..::std::default::Default::default()
115        });
116
117        ::std::option::Option::Some(cfg.freeze())
118    }
119
120    fn runtime_components(
121        &self,
122        _: &::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder,
123    ) -> ::std::borrow::Cow<'_, ::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder> {
124        #[allow(unused_mut)]
125        let mut rcb = ::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder::new("DeleteUser")
126            .with_interceptor(::aws_smithy_runtime_api::client::interceptors::SharedInterceptor::permanent(
127                DeleteUserTelemetryInputCaptureInterceptor,
128            ))
129            .with_interceptor(::aws_smithy_runtime_api::client::interceptors::SharedInterceptor::permanent(
130                ::aws_smithy_runtime::client::stalled_stream_protection::StalledStreamProtectionInterceptor::default(),
131            ))
132            .with_interceptor(::aws_smithy_runtime_api::client::interceptors::SharedInterceptor::permanent(
133                DeleteUserEndpointParamsInterceptor,
134            ))
135            .with_retry_classifier(::aws_smithy_runtime::client::retries::classifiers::TransientErrorClassifier::<
136                crate::operation::delete_user::DeleteUserError,
137            >::new())
138            .with_retry_classifier(::aws_smithy_runtime::client::retries::classifiers::ModeledAsRetryableClassifier::<
139                crate::operation::delete_user::DeleteUserError,
140            >::new())
141            .with_retry_classifier(::aws_runtime::retries::classifiers::AwsErrorCodeClassifier::<
142                crate::operation::delete_user::DeleteUserError,
143            >::new());
144
145        ::std::borrow::Cow::Owned(rcb)
146    }
147}
148
149#[derive(Debug)]
150struct DeleteUserTelemetryInputCaptureInterceptor;
151
152#[::aws_smithy_runtime_api::client::interceptors::dyn_dispatch_hint]
153impl ::aws_smithy_runtime_api::client::interceptors::Intercept for DeleteUserTelemetryInputCaptureInterceptor {
154    fn name(&self) -> &'static str {
155        "DeleteUserTelemetryInputCaptureInterceptor"
156    }
157
158    fn read_before_execution(
159        &self,
160        context: &::aws_smithy_runtime_api::client::interceptors::context::BeforeSerializationInterceptorContextRef<
161            '_,
162            ::aws_smithy_runtime_api::client::interceptors::context::Input,
163            ::aws_smithy_runtime_api::client::interceptors::context::Output,
164            ::aws_smithy_runtime_api::client::interceptors::context::Error,
165        >,
166        cfg: &mut ::aws_smithy_types::config_bag::ConfigBag,
167    ) -> ::std::result::Result<(), ::aws_smithy_runtime_api::box_error::BoxError> {
168        // Nothing to do unless the customer opted in by naming members to record.
169        let ::std::option::Option::Some(requested) = cfg
170            .load::<::aws_smithy_types::telemetry::RequestedTelemetryAttributes>()
171            .filter(|r| !r.is_empty())
172        else {
173            return ::std::result::Result::Ok(());
174        };
175
176        let ::std::option::Option::Some(input) = context.input().downcast_ref::<DeleteUserInput>() else {
177            // A mismatched input is not this interceptor's concern; skip quietly.
178            return ::std::result::Result::Ok(());
179        };
180
181        let mut captured = ::aws_smithy_types::telemetry::CapturedTelemetryAttributes::default();
182        if requested.should_capture("InstanceId") {
183            if let ::std::option::Option::Some(value) = input.instance_id.as_deref() {
184                captured.insert("InstanceId", value);
185            }
186        }
187        if requested.should_capture("UserId") {
188            if let ::std::option::Option::Some(value) = input.user_id.as_deref() {
189                captured.insert("UserId", value);
190            }
191        }
192
193        cfg.interceptor_state().store_put(captured);
194        ::std::result::Result::Ok(())
195    }
196}
197#[derive(Debug)]
198struct DeleteUserResponseDeserializer;
199impl ::aws_smithy_runtime_api::client::ser_de::DeserializeResponse for DeleteUserResponseDeserializer {
200    fn deserialize_nonstreaming_with_config(
201        &self,
202        response: &::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
203        _cfg: &::aws_smithy_types::config_bag::ConfigBag,
204    ) -> ::aws_smithy_runtime_api::client::interceptors::context::OutputOrError {
205        let (success, status) = (response.status().is_success(), response.status().as_u16());
206        let headers = response.headers();
207        let body = response.body().bytes().expect("body loaded");
208        #[allow(unused_mut)]
209        let mut force_error = false;
210        ::tracing::debug!(request_id = ?::aws_types::request_id::RequestId::request_id(response));
211        let parse_result = if !success && status != 200 || force_error {
212            crate::protocol_serde::shape_delete_user::de_delete_user_http_error(status, headers, body)
213        } else {
214            crate::protocol_serde::shape_delete_user::de_delete_user_http_response(status, headers, body)
215        };
216        crate::protocol_serde::type_erase_result(parse_result)
217    }
218}
219#[derive(Debug)]
220struct DeleteUserRequestSerializer;
221impl ::aws_smithy_runtime_api::client::ser_de::SerializeRequest for DeleteUserRequestSerializer {
222    #[allow(unused_mut, clippy::let_and_return, clippy::needless_borrow, clippy::useless_conversion)]
223    fn serialize_input(
224        &self,
225        input: ::aws_smithy_runtime_api::client::interceptors::context::Input,
226        _cfg: &mut ::aws_smithy_types::config_bag::ConfigBag,
227    ) -> ::std::result::Result<::aws_smithy_runtime_api::client::orchestrator::HttpRequest, ::aws_smithy_runtime_api::box_error::BoxError> {
228        let input = input.downcast::<crate::operation::delete_user::DeleteUserInput>().expect("correct type");
229        let _header_serialization_settings = _cfg
230            .load::<crate::serialization_settings::HeaderSerializationSettings>()
231            .cloned()
232            .unwrap_or_default();
233        let mut request_builder = {
234            #[allow(clippy::uninlined_format_args)]
235            fn uri_base(
236                _input: &crate::operation::delete_user::DeleteUserInput,
237                output: &mut ::std::string::String,
238            ) -> ::std::result::Result<(), ::aws_smithy_types::error::operation::BuildError> {
239                use ::std::fmt::Write as _;
240                let input_1 = &_input.instance_id;
241                let input_1 = input_1
242                    .as_ref()
243                    .ok_or_else(|| ::aws_smithy_types::error::operation::BuildError::missing_field("instance_id", "cannot be empty or unset"))?;
244                let instance_id = ::aws_smithy_http::label::fmt_string(input_1, ::aws_smithy_http::label::EncodingStrategy::Default);
245                if instance_id.is_empty() {
246                    return ::std::result::Result::Err(::aws_smithy_types::error::operation::BuildError::missing_field(
247                        "instance_id",
248                        "cannot be empty or unset",
249                    ));
250                }
251                let input_2 = &_input.user_id;
252                let input_2 = input_2
253                    .as_ref()
254                    .ok_or_else(|| ::aws_smithy_types::error::operation::BuildError::missing_field("user_id", "cannot be empty or unset"))?;
255                let user_id = ::aws_smithy_http::label::fmt_string(input_2, ::aws_smithy_http::label::EncodingStrategy::Default);
256                if user_id.is_empty() {
257                    return ::std::result::Result::Err(::aws_smithy_types::error::operation::BuildError::missing_field(
258                        "user_id",
259                        "cannot be empty or unset",
260                    ));
261                }
262                ::std::write!(output, "/users/{InstanceId}/{UserId}", InstanceId = instance_id, UserId = user_id).expect("formatting should succeed");
263                ::std::result::Result::Ok(())
264            }
265            #[allow(clippy::unnecessary_wraps)]
266            fn update_http_builder(
267                input: &crate::operation::delete_user::DeleteUserInput,
268                builder: ::http_1x::request::Builder,
269            ) -> ::std::result::Result<::http_1x::request::Builder, ::aws_smithy_types::error::operation::BuildError> {
270                let mut uri = ::std::string::String::new();
271                uri_base(input, &mut uri)?;
272                ::std::result::Result::Ok(builder.method("DELETE").uri(uri))
273            }
274            let mut builder = update_http_builder(&input, ::http_1x::request::Builder::new())?;
275            builder
276        };
277        let body = ::aws_smithy_types::body::SdkBody::from("");
278
279        ::std::result::Result::Ok(request_builder.body(body).expect("valid request").try_into().unwrap())
280    }
281}
282#[derive(Debug)]
283struct DeleteUserEndpointParamsInterceptor;
284
285#[::aws_smithy_runtime_api::client::interceptors::dyn_dispatch_hint]
286impl ::aws_smithy_runtime_api::client::interceptors::Intercept for DeleteUserEndpointParamsInterceptor {
287    fn name(&self) -> &'static str {
288        "DeleteUserEndpointParamsInterceptor"
289    }
290
291    fn read_before_execution(
292        &self,
293        context: &::aws_smithy_runtime_api::client::interceptors::context::BeforeSerializationInterceptorContextRef<
294            '_,
295            ::aws_smithy_runtime_api::client::interceptors::context::Input,
296            ::aws_smithy_runtime_api::client::interceptors::context::Output,
297            ::aws_smithy_runtime_api::client::interceptors::context::Error,
298        >,
299        cfg: &mut ::aws_smithy_types::config_bag::ConfigBag,
300    ) -> ::std::result::Result<(), ::aws_smithy_runtime_api::box_error::BoxError> {
301        let _input = context
302            .input()
303            .downcast_ref::<DeleteUserInput>()
304            .ok_or("failed to downcast to DeleteUserInput")?;
305
306        let params = crate::config::endpoint::Params::builder()
307            .set_region(cfg.load::<::aws_types::region::Region>().map(|r| r.as_ref().to_owned()))
308            .set_use_dual_stack(cfg.load::<::aws_types::endpoint_config::UseDualStack>().map(|ty| ty.0))
309            .set_use_fips(cfg.load::<::aws_types::endpoint_config::UseFips>().map(|ty| ty.0))
310            .set_endpoint(cfg.load::<::aws_types::endpoint_config::EndpointUrl>().map(|ty| ty.0.clone()))
311            .build()
312            .map_err(|err| {
313                ::aws_smithy_runtime_api::client::interceptors::error::ContextAttachedError::new("endpoint params could not be built", err)
314            })?;
315        cfg.interceptor_state()
316            .store_put(::aws_smithy_runtime_api::client::endpoint::EndpointResolverParams::new(params));
317        ::std::result::Result::Ok(())
318    }
319}
320
321// The get_* functions below are generated from JMESPath expressions in the
322// operationContextParams trait. They target the operation's input shape.
323
324/// Error type for the `DeleteUserError` operation.
325#[non_exhaustive]
326#[derive(::std::fmt::Debug)]
327pub enum DeleteUserError {
328    /// <p>Request processing failed because of an error or failure with the service.</p>
329    InternalServiceException(crate::types::error::InternalServiceException),
330    /// <p>One or more of the specified parameters are not valid.</p>
331    InvalidParameterException(crate::types::error::InvalidParameterException),
332    /// <p>The request is not valid.</p>
333    InvalidRequestException(crate::types::error::InvalidRequestException),
334    /// <p>The specified resource was not found.</p>
335    ResourceNotFoundException(crate::types::error::ResourceNotFoundException),
336    /// <p>The throttling limit has been exceeded.</p>
337    ThrottlingException(crate::types::error::ThrottlingException),
338    /// An unexpected error occurred (e.g., invalid JSON returned by the service or an unknown error code).
339    #[deprecated(note = "Matching `Unhandled` directly is not forwards compatible. Instead, match using a \
340    variable wildcard pattern and check `.code()`:
341     \
342    &nbsp;&nbsp;&nbsp;`err if err.code() == Some(\"SpecificExceptionCode\") => { /* handle the error */ }`
343     \
344    See [`ProvideErrorMetadata`](#impl-ProvideErrorMetadata-for-DeleteUserError) for what information is available for the error.")]
345    Unhandled(crate::error::sealed_unhandled::Unhandled),
346}
347impl DeleteUserError {
348    /// Creates the `DeleteUserError::Unhandled` variant from any error type.
349    pub fn unhandled(
350        err: impl ::std::convert::Into<::std::boxed::Box<dyn ::std::error::Error + ::std::marker::Send + ::std::marker::Sync + 'static>>,
351    ) -> Self {
352        Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
353            source: err.into(),
354            meta: ::std::default::Default::default(),
355        })
356    }
357
358    /// Creates the `DeleteUserError::Unhandled` variant from an [`ErrorMetadata`](::aws_smithy_types::error::ErrorMetadata).
359    pub fn generic(err: ::aws_smithy_types::error::ErrorMetadata) -> Self {
360        Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
361            source: err.clone().into(),
362            meta: err,
363        })
364    }
365    ///
366    /// Returns error metadata, which includes the error code, message,
367    /// request ID, and potentially additional information.
368    ///
369    pub fn meta(&self) -> &::aws_smithy_types::error::ErrorMetadata {
370        match self {
371            Self::InternalServiceException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
372            Self::InvalidParameterException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
373            Self::InvalidRequestException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
374            Self::ResourceNotFoundException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
375            Self::ThrottlingException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
376            Self::Unhandled(e) => &e.meta,
377        }
378    }
379    /// Returns `true` if the error kind is `DeleteUserError::InternalServiceException`.
380    pub fn is_internal_service_exception(&self) -> bool {
381        matches!(self, Self::InternalServiceException(_))
382    }
383    /// Returns `true` if the error kind is `DeleteUserError::InvalidParameterException`.
384    pub fn is_invalid_parameter_exception(&self) -> bool {
385        matches!(self, Self::InvalidParameterException(_))
386    }
387    /// Returns `true` if the error kind is `DeleteUserError::InvalidRequestException`.
388    pub fn is_invalid_request_exception(&self) -> bool {
389        matches!(self, Self::InvalidRequestException(_))
390    }
391    /// Returns `true` if the error kind is `DeleteUserError::ResourceNotFoundException`.
392    pub fn is_resource_not_found_exception(&self) -> bool {
393        matches!(self, Self::ResourceNotFoundException(_))
394    }
395    /// Returns `true` if the error kind is `DeleteUserError::ThrottlingException`.
396    pub fn is_throttling_exception(&self) -> bool {
397        matches!(self, Self::ThrottlingException(_))
398    }
399}
400impl ::std::error::Error for DeleteUserError {
401    fn source(&self) -> ::std::option::Option<&(dyn ::std::error::Error + 'static)> {
402        match self {
403            Self::InternalServiceException(_inner) => ::std::option::Option::Some(_inner),
404            Self::InvalidParameterException(_inner) => ::std::option::Option::Some(_inner),
405            Self::InvalidRequestException(_inner) => ::std::option::Option::Some(_inner),
406            Self::ResourceNotFoundException(_inner) => ::std::option::Option::Some(_inner),
407            Self::ThrottlingException(_inner) => ::std::option::Option::Some(_inner),
408            Self::Unhandled(_inner) => ::std::option::Option::Some(&*_inner.source),
409        }
410    }
411}
412impl ::std::fmt::Display for DeleteUserError {
413    fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
414        match self {
415            Self::InternalServiceException(_inner) => _inner.fmt(f),
416            Self::InvalidParameterException(_inner) => _inner.fmt(f),
417            Self::InvalidRequestException(_inner) => _inner.fmt(f),
418            Self::ResourceNotFoundException(_inner) => _inner.fmt(f),
419            Self::ThrottlingException(_inner) => _inner.fmt(f),
420            Self::Unhandled(_inner) => {
421                if let ::std::option::Option::Some(code) = ::aws_smithy_types::error::metadata::ProvideErrorMetadata::code(self) {
422                    write!(f, "unhandled error ({code})")
423                } else {
424                    f.write_str("unhandled error")
425                }
426            }
427        }
428    }
429}
430impl ::aws_smithy_types::retry::ProvideErrorKind for DeleteUserError {
431    fn code(&self) -> ::std::option::Option<&str> {
432        ::aws_smithy_types::error::metadata::ProvideErrorMetadata::code(self)
433    }
434    fn retryable_error_kind(&self) -> ::std::option::Option<::aws_smithy_types::retry::ErrorKind> {
435        ::std::option::Option::None
436    }
437}
438impl ::aws_smithy_types::error::metadata::ProvideErrorMetadata for DeleteUserError {
439    fn meta(&self) -> &::aws_smithy_types::error::ErrorMetadata {
440        match self {
441            Self::InternalServiceException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
442            Self::InvalidParameterException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
443            Self::InvalidRequestException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
444            Self::ResourceNotFoundException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
445            Self::ThrottlingException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
446            Self::Unhandled(_inner) => &_inner.meta,
447        }
448    }
449}
450impl ::aws_smithy_runtime_api::client::result::CreateUnhandledError for DeleteUserError {
451    fn create_unhandled_error(
452        source: ::std::boxed::Box<dyn ::std::error::Error + ::std::marker::Send + ::std::marker::Sync + 'static>,
453        meta: ::std::option::Option<::aws_smithy_types::error::ErrorMetadata>,
454    ) -> Self {
455        Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
456            source,
457            meta: meta.unwrap_or_default(),
458        })
459    }
460}
461impl ::aws_types::request_id::RequestId for crate::operation::delete_user::DeleteUserError {
462    fn request_id(&self) -> Option<&str> {
463        self.meta().request_id()
464    }
465}
466
467pub use crate::operation::delete_user::_delete_user_input::DeleteUserInput;
468
469pub use crate::operation::delete_user::_delete_user_output::DeleteUserOutput;
470
471mod _delete_user_input;
472
473mod _delete_user_output;
474
475/// Builders
476pub mod builders;
aws_sdk_connect/operation/delete_user.rs

aws_sdk_connect/operation/
delete_user.rs
