add samples to test anyOf in rust client

bin/configs/rust-hyper-anyof.yaml

@@ -0,0 +1,8 @@
+generatorName: rust
+outputDir: samples/client/others/rust/hyper/anyof
+library: hyper
+inputSpec: modules/openapi-generator/src/test/resources/3_0/rust/rust-anyof-test.yaml
+templateDir: modules/openapi-generator/src/main/resources/rust
+additionalProperties:
+  supportAsync: false
+  packageName: anyof-hyper

samples/client/others/rust/hyper/anyof/.gitignore

@@ -0,0 +1,3 @@
+/target/
+**/*.rs.bk
+Cargo.lock

samples/client/others/rust/hyper/anyof/.openapi-generator-ignore

@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

samples/client/others/rust/hyper/anyof/.openapi-generator/FILES

@@ -0,0 +1,19 @@
+.gitignore
+.travis.yml
+Cargo.toml
+README.md
+docs/AnotherAnyOfTest.md
+docs/DefaultApi.md
+docs/ModelIdentifier.md
+docs/TestResponse.md
+git_push.sh
+src/apis/client.rs
+src/apis/configuration.rs
+src/apis/default_api.rs
+src/apis/mod.rs
+src/apis/request.rs
+src/lib.rs
+src/models/another_any_of_test.rs
+src/models/mod.rs
+src/models/model_identifier.rs
+src/models/test_response.rs

samples/client/others/rust/hyper/anyof/.openapi-generator/VERSION

@@ -0,0 +1 @@
+7.16.0-SNAPSHOT

samples/client/others/rust/hyper/anyof/.travis.yml

@@ -0,0 +1 @@
+language: rust

samples/client/others/rust/hyper/anyof/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "anyof-hyper"
+version = "1.0.0"
+authors = ["OpenAPI Generator team and contributors"]
+description = "No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)"
+# Override this license by providing a License Object in the OpenAPI.
+license = "Unlicense"
+edition = "2021"
+
+[dependencies]
+serde = { version = "^1.0", features = ["derive"] }
+serde_json = "^1.0"
+serde_repr = "^0.1"
+url = "^2.5"
+hyper = { version = "^1.3.1", features = ["full"] }
+hyper-util = { version = "0.1.5", features = ["client", "client-legacy", "http1", "http2"] }
+http-body-util = { version = "0.1.2" }
+http = "~0.2"
+base64 = "~0.7.0"
+futures = "^0.3"

samples/client/others/rust/hyper/anyof/README.md

@@ -0,0 +1,48 @@
+# Rust API client for anyof-hyper
+
+No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
+
+
+## Overview
+
+This API client was generated by the [OpenAPI Generator](https://openapi-generator.tech) project.  By using the [openapi-spec](https://openapis.org) from a remote server, you can easily generate an API client.
+
+- API version: 1.0.0
+- Package version: 1.0.0
+- Generator version: 7.16.0-SNAPSHOT
+- Build package: `org.openapitools.codegen.languages.RustClientCodegen`
+
+## Installation
+
+Put the package under your project folder in a directory named `anyof-hyper` and add the following to `Cargo.toml` under `[dependencies]`:
+
+```
+anyof-hyper = { path = "./anyof-hyper" }
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to *http://localhost*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*DefaultApi* | [**model_get**](docs/DefaultApi.md#model_get) | **Get** /model | 
+
+
+## Documentation For Models
+
+ - [AnotherAnyOfTest](docs/AnotherAnyOfTest.md)
+ - [ModelIdentifier](docs/ModelIdentifier.md)
+ - [TestResponse](docs/TestResponse.md)
+
+
+To get access to the crate's generated documentation, use:
+
+```
+cargo doc --open
+```
+
+## Author
+
+
+

samples/client/others/rust/hyper/anyof/docs/AnotherAnyOfTest.md

@@ -0,0 +1,10 @@
+# AnotherAnyOfTest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/client/others/rust/hyper/anyof/docs/DefaultApi.md

@@ -0,0 +1,34 @@
+# \DefaultApi
+
+All URIs are relative to *http://localhost*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**model_get**](DefaultApi.md#model_get) | **Get** /model | 
+
+
+
+## model_get
+
+> models::TestResponse model_get()
+
+
+### Parameters
+
+This endpoint does not need any parameter.
+
+### Return type
+
+[**models::TestResponse**](TestResponse.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+

samples/client/others/rust/hyper/anyof/docs/ModelIdentifier.md

@@ -0,0 +1,10 @@
+# ModelIdentifier
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/client/others/rust/hyper/anyof/docs/TestResponse.md

@@ -0,0 +1,12 @@
+# TestResponse
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**model** | Option<[**models::ModelIdentifier**](ModelIdentifier.md)> |  | [optional]
+**status** | Option<**String**> |  | [optional]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/client/others/rust/hyper/anyof/git_push.sh

@@ -0,0 +1,57 @@
+#!/bin/sh
+# ref: https://help.github.com/articles/adding-an-existing-project-to-github-using-the-command-line/
+#
+# Usage example: /bin/sh ./git_push.sh wing328 openapi-petstore-perl "minor update" "gitlab.com"
+
+git_user_id=$1
+git_repo_id=$2
+release_note=$3
+git_host=$4
+
+if [ "$git_host" = "" ]; then
+    git_host="github.com"
+    echo "[INFO] No command line input provided. Set \$git_host to $git_host"
+fi
+
+if [ "$git_user_id" = "" ]; then
+    git_user_id="GIT_USER_ID"
+    echo "[INFO] No command line input provided. Set \$git_user_id to $git_user_id"
+fi
+
+if [ "$git_repo_id" = "" ]; then
+    git_repo_id="GIT_REPO_ID"
+    echo "[INFO] No command line input provided. Set \$git_repo_id to $git_repo_id"
+fi
+
+if [ "$release_note" = "" ]; then
+    release_note="Minor update"
+    echo "[INFO] No command line input provided. Set \$release_note to $release_note"
+fi
+
+# Initialize the local directory as a Git repository
+git init
+
+# Adds the files in the local repository and stages them for commit.
+git add .
+
+# Commits the tracked changes and prepares them to be pushed to a remote repository.
+git commit -m "$release_note"
+
+# Sets the new remote
+git_remote=$(git remote)
+if [ "$git_remote" = "" ]; then # git remote not defined
+
+    if [ "$GIT_TOKEN" = "" ]; then
+        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git credential in your environment."
+        git remote add origin https://${git_host}/${git_user_id}/${git_repo_id}.git
+    else
+        git remote add origin https://${git_user_id}:"${GIT_TOKEN}"@${git_host}/${git_user_id}/${git_repo_id}.git
+    fi
+
+fi
+
+git pull origin master
+
+# Pushes (Forces) the changes in the local repository up to the remote repository
+echo "Git pushing to https://${git_host}/${git_user_id}/${git_repo_id}.git"
+git push origin master 2>&1 | grep -v 'To https'

samples/client/others/rust/hyper/anyof/src/apis/client.rs

@@ -0,0 +1,25 @@
+use std::sync::Arc;
+
+use hyper;
+use hyper_util::client::legacy::connect::Connect;
+use super::configuration::Configuration;
+
+pub struct APIClient {
+    default_api: Box<dyn crate::apis::DefaultApi>,
+}
+
+impl APIClient {
+    pub fn new<C: Connect>(configuration: Configuration<C>) -> APIClient
+        where C: Clone + std::marker::Send + Sync + 'static {
+        let rc = Arc::new(configuration);
+
+        APIClient {
+            default_api: Box::new(crate::apis::DefaultApiClient::new(rc.clone())),
+        }
+    }
+
+    pub fn default_api(&self) -> &dyn crate::apis::DefaultApi{
+        self.default_api.as_ref()
+    }
+
+}

samples/client/others/rust/hyper/anyof/src/apis/configuration.rs

@@ -0,0 +1,92 @@
+/*
+ * Rust anyOf Test
+ *
+ * No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+use hyper;
+use hyper_util::client::legacy::Client;
+use hyper_util::client::legacy::connect::Connect;
+use hyper_util::client::legacy::connect::HttpConnector;
+use hyper_util::rt::TokioExecutor;
+
+pub struct Configuration<C: Connect = HttpConnector>
+    where C: Clone + std::marker::Send + Sync + 'static {
+    pub base_path: String,
+    pub user_agent: Option<String>,
+    pub client: Client<C, String>,
+    pub basic_auth: Option<BasicAuth>,
+    pub oauth_access_token: Option<String>,
+    pub api_key: Option<ApiKey>,
+    // TODO: take an oauth2 token source, similar to the go one
+}
+
+pub type BasicAuth = (String, Option<String>);
+
+pub struct ApiKey {
+    pub prefix: Option<String>,
+    pub key: String,
+}
+
+impl Configuration<HttpConnector> {
+    /// Construct a default [`Configuration`](Self) with a hyper client using a default
+    /// [`HttpConnector`](hyper_util::client::legacy::connect::HttpConnector).
+    ///
+    /// Use [`with_client`](Configuration<T>::with_client) to construct a Configuration with a
+    /// custom hyper client.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # use anyof_hyper::apis::configuration::Configuration;
+    /// let api_config = Configuration {
+    ///   basic_auth: Some(("user".into(), None)),
+    ///   ..Configuration::new()
+    /// };
+    /// ```
+    pub fn new() -> Configuration<HttpConnector> {
+        Configuration::default()
+    }
+}
+
+impl<C: Connect> Configuration<C>
+    where C: Clone + std::marker::Send + Sync {
+
+    /// Construct a new Configuration with a custom hyper client.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # use core::time::Duration;
+    /// # use anyof_hyper::apis::configuration::Configuration;
+    /// use hyper_util::client::legacy::Client;
+    /// use hyper_util::rt::TokioExecutor;
+    ///
+    /// let client = Client::builder(TokioExecutor::new())
+    ///   .pool_idle_timeout(Duration::from_secs(30))
+    ///   .build_http();
+    ///
+    /// let api_config = Configuration::with_client(client);
+    /// ```
+    pub fn with_client(client: Client<C, String>) -> Configuration<C> {
+        Configuration {
+            base_path: "http://localhost".to_owned(),
+            user_agent: Some("OpenAPI-Generator/1.0.0/rust".to_owned()),
+            client,
+            basic_auth: None,
+            oauth_access_token: None,
+            api_key: None,
+        }
+    }
+}
+
+impl Default for Configuration<HttpConnector> {
+    fn default() -> Self {
+        let client = Client::builder(TokioExecutor::new()).build_http();
+    	Configuration::with_client(client)
+    }
+}

samples/client/others/rust/hyper/anyof/src/apis/default_api.rs

@@ -0,0 +1,53 @@
+/*
+ * Rust anyOf Test
+ *
+ * No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+use std::sync::Arc;
+use std::borrow::Borrow;
+use std::pin::Pin;
+#[allow(unused_imports)]
+use std::option::Option;
+
+use hyper;
+use hyper_util::client::legacy::connect::Connect;
+use futures::Future;
+
+use crate::models;
+use super::{Error, configuration};
+use super::request as __internal_request;
+
+pub struct DefaultApiClient<C: Connect>
+    where C: Clone + std::marker::Send + Sync + 'static {
+    configuration: Arc<configuration::Configuration<C>>,
+}
+
+impl<C: Connect> DefaultApiClient<C>
+    where C: Clone + std::marker::Send + Sync {
+    pub fn new(configuration: Arc<configuration::Configuration<C>>) -> DefaultApiClient<C> {
+        DefaultApiClient {
+            configuration,
+        }
+    }
+}
+
+pub trait DefaultApi: Send + Sync {
+    fn model_get(&self, ) -> Pin<Box<dyn Future<Output = Result<models::TestResponse, Error>> + Send>>;
+}
+
+impl<C: Connect>DefaultApi for DefaultApiClient<C>
+    where C: Clone + std::marker::Send + Sync {
+    #[allow(unused_mut)]
+    fn model_get(&self, ) -> Pin<Box<dyn Future<Output = Result<models::TestResponse, Error>> + Send>> {
+        let mut req = __internal_request::Request::new(hyper::Method::GET, "/model".to_string())
+        ;
+
+        req.execute(self.configuration.borrow())
+    }
+
+}

samples/client/others/rust/hyper/anyof/src/apis/mod.rs

@@ -0,0 +1,73 @@
+use std::fmt;
+use std::fmt::Debug;
+
+use hyper;
+use hyper::http;
+use hyper_util::client::legacy::connect::Connect;
+use serde_json;
+
+#[derive(Debug)]
+pub enum Error {
+    Api(ApiError),
+    Header(http::header::InvalidHeaderValue),
+    Http(http::Error),
+    Hyper(hyper::Error),
+    HyperClient(hyper_util::client::legacy::Error),
+    Serde(serde_json::Error),
+    UriError(http::uri::InvalidUri),
+}
+
+pub struct ApiError {
+    pub code: hyper::StatusCode,
+    pub body: hyper::body::Incoming,
+}
+
+impl Debug for ApiError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("ApiError")
+         .field("code", &self.code)
+         .field("body", &"hyper::body::Incoming")
+         .finish()
+    }
+}
+
+impl From<(hyper::StatusCode, hyper::body::Incoming)> for Error {
+    fn from(e: (hyper::StatusCode, hyper::body::Incoming)) -> Self {
+        Error::Api(ApiError {
+            code: e.0,
+            body: e.1,
+        })
+    }
+}
+
+impl From<http::Error> for Error {
+    fn from(e: http::Error) -> Self {
+        Error::Http(e)
+    }
+}
+
+impl From<hyper_util::client::legacy::Error> for Error {
+    fn from(e: hyper_util::client::legacy::Error) -> Self {
+        Error::HyperClient(e)
+    }
+}
+
+impl From<hyper::Error> for Error {
+    fn from(e: hyper::Error) -> Self {
+        Error::Hyper(e)
+    }
+}
+
+impl From<serde_json::Error> for Error {
+    fn from(e: serde_json::Error) -> Self {
+        Error::Serde(e)
+    }
+}
+
+mod request;
+
+mod default_api;
+pub use self::default_api::{ DefaultApi, DefaultApiClient };
+
+pub mod configuration;
+pub mod client;

samples/client/others/rust/hyper/anyof/src/apis/request.rs

@@ -0,0 +1,247 @@
+use std::collections::HashMap;
+use std::pin::Pin;
+
+use futures;
+use futures::Future;
+use futures::future::*;
+use http_body_util::BodyExt;
+use hyper;
+use hyper_util::client::legacy::connect::Connect;
+use hyper::header::{AUTHORIZATION, CONTENT_LENGTH, CONTENT_TYPE, HeaderValue, USER_AGENT};
+use serde;
+use serde_json;
+
+use super::{configuration, Error};
+
+pub(crate) struct ApiKey {
+    pub in_header: bool,
+    pub in_query: bool,
+    pub param_name: String,
+}
+
+impl ApiKey {
+    fn key(&self, prefix: &Option<String>, key: &str) -> String {
+        match prefix {
+            None => key.to_owned(),
+            Some(ref prefix) => format!("{} {}", prefix, key),
+        }
+    }
+}
+
+#[allow(dead_code)]
+pub(crate) enum Auth {
+    None,
+    ApiKey(ApiKey),
+    Basic,
+    Oauth,
+}
+
+/// If the authorization type is unspecified then it will be automatically detected based
+/// on the configuration. This functionality is useful when the OpenAPI definition does not
+/// include an authorization scheme.
+pub(crate) struct Request {
+    auth: Option<Auth>,
+    method: hyper::Method,
+    path: String,
+    query_params: HashMap<String, String>,
+    no_return_type: bool,
+    path_params: HashMap<String, String>,
+    form_params: HashMap<String, String>,
+    header_params: HashMap<String, String>,
+    // TODO: multiple body params are possible technically, but not supported here.
+    serialized_body: Option<String>,
+}
+
+#[allow(dead_code)]
+impl Request {
+    pub fn new(method: hyper::Method, path: String) -> Self {
+        Request {
+            auth: None,
+            method,
+            path,
+            query_params: HashMap::new(),
+            path_params: HashMap::new(),
+            form_params: HashMap::new(),
+            header_params: HashMap::new(),
+            serialized_body: None,
+            no_return_type: false,
+        }
+    }
+
+    pub fn with_body_param<T: serde::Serialize>(mut self, param: T) -> Self {
+        self.serialized_body = Some(serde_json::to_string(&param).unwrap());
+        self
+    }
+
+    pub fn with_header_param(mut self, basename: String, param: String) -> Self {
+        self.header_params.insert(basename, param);
+        self
+    }
+
+    #[allow(unused)]
+    pub fn with_query_param(mut self, basename: String, param: String) -> Self {
+        self.query_params.insert(basename, param);
+        self
+    }
+
+    #[allow(unused)]
+    pub fn with_path_param(mut self, basename: String, param: String) -> Self {
+        self.path_params.insert(basename, param);
+        self
+    }
+
+    #[allow(unused)]
+    pub fn with_form_param(mut self, basename: String, param: String) -> Self {
+        self.form_params.insert(basename, param);
+        self
+    }
+
+    pub fn returns_nothing(mut self) -> Self {
+        self.no_return_type = true;
+        self
+    }
+
+    pub fn with_auth(mut self, auth: Auth) -> Self {
+        self.auth = Some(auth);
+        self
+    }
+
+    pub fn execute<'a, C, U>(
+        self,
+        conf: &configuration::Configuration<C>,
+    ) -> Pin<Box<dyn Future<Output=Result<U, Error>> + 'a + Send>>
+        where
+            C: Connect + Clone + std::marker::Send + Sync,
+            U: Sized + std::marker::Send + 'a,
+            for<'de> U: serde::Deserialize<'de>,
+    {
+        let mut query_string = ::url::form_urlencoded::Serializer::new("".to_owned());
+
+        let mut path = self.path;
+        for (k, v) in self.path_params {
+            // replace {id} with the value of the id path param
+            path = path.replace(&format!("{{{}}}", k), &v);
+        }
+
+        for (key, val) in self.query_params {
+            query_string.append_pair(&key, &val);
+        }
+
+        let mut uri_str = format!("{}{}", conf.base_path, path);
+
+        let query_string_str = query_string.finish();
+        if !query_string_str.is_empty() {
+            uri_str += "?";
+            uri_str += &query_string_str;
+        }
+        let uri: hyper::Uri = match uri_str.parse() {
+            Err(e) => return Box::pin(futures::future::err(Error::UriError(e))),
+            Ok(u) => u,
+        };
+
+        let mut req_builder = hyper::Request::builder()
+            .uri(uri)
+            .method(self.method);
+
+        // Detect the authorization type if it hasn't been set.
+        let auth = self.auth.unwrap_or_else(||
+            if conf.api_key.is_some() {
+                panic!("Cannot automatically set the API key from the configuration, it must be specified in the OpenAPI definition")
+            } else if conf.oauth_access_token.is_some() {
+                Auth::Oauth
+            } else if conf.basic_auth.is_some() {
+                Auth::Basic
+            } else {
+                Auth::None
+            }
+        );
+        match auth {
+            Auth::ApiKey(apikey) => {
+                if let Some(ref key) = conf.api_key {
+                    let val = apikey.key(&key.prefix, &key.key);
+                    if apikey.in_query {
+                        query_string.append_pair(&apikey.param_name, &val);
+                    }
+                    if apikey.in_header {
+                        req_builder = req_builder.header(&apikey.param_name, val);
+                    }
+                }
+            }
+            Auth::Basic => {
+                if let Some(ref auth_conf) = conf.basic_auth {
+                    let mut text = auth_conf.0.clone();
+                    text.push(':');
+                    if let Some(ref pass) = auth_conf.1 {
+                        text.push_str(&pass[..]);
+                    }
+                    let encoded = base64::encode(&text);
+                    req_builder = req_builder.header(AUTHORIZATION, encoded);
+                }
+            }
+            Auth::Oauth => {
+                if let Some(ref token) = conf.oauth_access_token {
+                    let text = "Bearer ".to_owned() + token;
+                    req_builder = req_builder.header(AUTHORIZATION, text);
+                }
+            }
+            Auth::None => {}
+        }
+
+        if let Some(ref user_agent) = conf.user_agent {
+            req_builder = req_builder.header(USER_AGENT, match HeaderValue::from_str(user_agent) {
+                Ok(header_value) => header_value,
+                Err(e) => return Box::pin(futures::future::err(super::Error::Header(e)))
+            });
+        }
+
+        for (k, v) in self.header_params {
+            req_builder = req_builder.header(&k, v);
+        }
+
+        let req_headers = req_builder.headers_mut().unwrap();
+        let request_result = if self.form_params.len() > 0 {
+            req_headers.insert(CONTENT_TYPE, HeaderValue::from_static("application/x-www-form-urlencoded"));
+            let mut enc = ::url::form_urlencoded::Serializer::new("".to_owned());
+            for (k, v) in self.form_params {
+                enc.append_pair(&k, &v);
+            }
+            req_builder.body(enc.finish())
+        } else if let Some(body) = self.serialized_body {
+            req_headers.insert(CONTENT_TYPE, HeaderValue::from_static("application/json"));
+            req_headers.insert(CONTENT_LENGTH, body.len().into());
+            req_builder.body(body)
+        } else {
+            req_builder.body(String::new())
+        };
+        let request = match request_result {
+            Ok(request) => request,
+            Err(e) => return Box::pin(futures::future::err(Error::from(e)))
+        };
+
+        let no_return_type = self.no_return_type;
+        Box::pin(conf.client
+            .request(request)
+            .map_err(|e| Error::from(e))
+            .and_then(move |response| {
+                let status = response.status();
+                if !status.is_success() {
+                    futures::future::err::<U, Error>(Error::from((status, response.into_body()))).boxed()
+                } else if no_return_type {
+                    // This is a hack; if there's no_ret_type, U is (), but serde_json gives an
+                    // error when deserializing "" into (), so deserialize 'null' into it
+                    // instead.
+                    // An alternate option would be to require U: Default, and then return
+                    // U::default() here instead since () implements that, but then we'd
+                    // need to impl default for all models.
+                    futures::future::ok::<U, Error>(serde_json::from_str("null").expect("serde null value")).boxed()
+                } else {
+                    let collect = response.into_body().collect().map_err(Error::from);
+                    collect.map(|collected| {
+                        collected.and_then(|collected| {
+                           serde_json::from_slice(&collected.to_bytes()).map_err(Error::from)
+                        })
+                    }).boxed()
+                }
+            }))
+    }
+}

samples/client/others/rust/hyper/anyof/src/lib.rs

@@ -0,0 +1,12 @@
+#![allow(unused_imports)]
+#![allow(clippy::too_many_arguments)]
+
+extern crate serde_repr;
+extern crate serde;
+extern crate serde_json;
+extern crate url;
+extern crate hyper;
+extern crate futures;
+
+pub mod apis;
+pub mod models;

samples/client/others/rust/hyper/anyof/src/models/another_any_of_test.rs

@@ -0,0 +1,28 @@
+/*
+ * Rust anyOf Test
+ *
+ * No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+use crate::models;
+use serde::{Deserialize, Serialize};
+
+/// AnotherAnyOfTest : Another test case with different types
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[serde(untagged)]
+pub enum AnotherAnyOfTest {
+    String(String),
+    Integer(i32),
+    ArrayVecString(Vec<String>),
+}
+
+impl Default for AnotherAnyOfTest {
+    fn default() -> Self {
+        Self::String(Default::default())
+    }
+}
+

samples/client/others/rust/hyper/anyof/src/models/mod.rs

@@ -0,0 +1,6 @@
+pub mod another_any_of_test;
+pub use self::another_any_of_test::AnotherAnyOfTest;
+pub mod model_identifier;
+pub use self::model_identifier::ModelIdentifier;
+pub mod test_response;
+pub use self::test_response::TestResponse;

samples/client/others/rust/hyper/anyof/src/models/model_identifier.rs

@@ -0,0 +1,29 @@
+/*
+ * Rust anyOf Test
+ *
+ * No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+use crate::models;
+use serde::{Deserialize, Serialize};
+
+/// ModelIdentifier : Model identifier that can be a string or specific enum value
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[serde(untagged)]
+pub enum ModelIdentifier {
+    /// Any model name as string
+    String(String),
+    /// Known model enum values
+    String(String),
+}
+
+impl Default for ModelIdentifier {
+    fn default() -> Self {
+        Self::String(Default::default())
+    }
+}
+

samples/client/others/rust/hyper/anyof/src/models/test_response.rs

@@ -0,0 +1,30 @@
+/*
+ * Rust anyOf Test
+ *
+ * No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+use crate::models;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Default, Debug, PartialEq, Serialize, Deserialize)]
+pub struct TestResponse {
+    #[serde(rename = "model", skip_serializing_if = "Option::is_none")]
+    pub model: Option<Box<models::ModelIdentifier>>,
+    #[serde(rename = "status", skip_serializing_if = "Option::is_none")]
+    pub status: Option<String>,
+}
+
+impl TestResponse {
+    pub fn new() -> TestResponse {
+        TestResponse {
+            model: None,
+            status: None,
+        }
+    }
+}
+