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The `google-appengine1_beta5` library allows access to all features of the *Google appengine* service.
This documentation was generated from *appengine* crate version *5.0.2+20181005*, where *20181005* is the exact revision of the *appengine:v1beta5* schema built by the [mako](http://www.makotemplates.org/) code generator *v5.0.2*.
Everything else about the *appengine* *v1_beta5* API can be found at the
[official documentation site](https://cloud.google.com/appengine/docs/admin-api/).
# Features
Handle the following *Resources* with ease from the central [hub](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/Appengine) ...
* apps
* [*create*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppCreateCall), [*get*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppGetCall), [*locations get*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppLocationGetCall), [*locations list*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppLocationListCall), [*operations get*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppOperationGetCall), [*operations list*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppOperationListCall), [*patch*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppPatchCall), [*services delete*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceDeleteCall), [*services get*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceGetCall), [*services list*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceListCall), [*services patch*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServicePatchCall), [*services versions create*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionCreateCall), [*services versions delete*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionDeleteCall), [*services versions get*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionGetCall), [*services versions instances debug*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionInstanceDebugCall), [*services versions instances delete*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionInstanceDeleteCall), [*services versions instances get*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionInstanceGetCall), [*services versions instances list*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionInstanceListCall), [*services versions list*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionListCall) and [*services versions patch*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/api::AppServiceVersionPatchCall)
# Structure of this Library
The API is structured into the following primary items:
* **[Hub](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/Appengine)**
* a central object to maintain state and allow accessing all *Activities*
* creates [*Method Builders*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::MethodsBuilder) which in turn
allow access to individual [*Call Builders*](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::CallBuilder)
* **[Resources](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::Resource)**
* primary types that you can apply *Activities* to
* a collection of properties and *Parts*
* **[Parts](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::Part)**
* a collection of properties
* never directly used in *Activities*
* **[Activities](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::CallBuilder)**
* operations to apply to *Resources*
All *structures* are marked with applicable traits to further categorize them and ease browsing.
Generally speaking, you can invoke *Activities* like this:
```Rust,ignore
let r = hub.resource().activity(...).doit().await
```
Or specifically ...
```ignore
let r = hub.apps().operations_get(...).doit().await
let r = hub.apps().services_versions_instances_debug(...).doit().await
let r = hub.apps().services_versions_instances_delete(...).doit().await
let r = hub.apps().services_versions_create(...).doit().await
let r = hub.apps().services_versions_delete(...).doit().await
let r = hub.apps().services_versions_patch(...).doit().await
let r = hub.apps().services_delete(...).doit().await
let r = hub.apps().services_patch(...).doit().await
let r = hub.apps().create(...).doit().await
let r = hub.apps().patch(...).doit().await
```
The `resource()` and `activity(...)` calls create [builders][builder-pattern]. The second one dealing with `Activities`
supports various methods to configure the impending operation (not shown here). It is made such that all required arguments have to be
specified right away (i.e. `(...)`), whereas all optional ones can be [build up][builder-pattern] as desired.
The `doit()` method performs the actual communication with the server and returns the respective result.
# Usage
## Setting up your Project
To use this library, you would put the following lines into your `Cargo.toml` file:
```toml
[dependencies]
google-appengine1_beta5 = "*"
serde = "^1.0"
serde_json = "^1.0"
```
## A complete example
```Rust
extern crate hyper;
extern crate hyper_rustls;
extern crate google_appengine1_beta5 as appengine1_beta5;
use appengine1_beta5::api::DebugInstanceRequest;
use appengine1_beta5::{Result, Error};
use std::default::Default;
use appengine1_beta5::{Appengine, oauth2, hyper, hyper_rustls, chrono, FieldMask};
// Get an ApplicationSecret instance by some means. It contains the `client_id` and
// `client_secret`, among other things.
let secret: oauth2::ApplicationSecret = Default::default();
// Instantiate the authenticator. It will choose a suitable authentication flow for you,
// unless you replace `None` with the desired Flow.
// Provide your own `AuthenticatorDelegate` to adjust the way it operates and get feedback about
// what's going on. You probably want to bring in your own `TokenStorage` to persist tokens and
// retrieve them from storage.
let auth = oauth2::InstalledFlowAuthenticator::builder(
secret,
oauth2::InstalledFlowReturnMethod::HTTPRedirect,
).build().await.unwrap();
let mut hub = Appengine::new(hyper::Client::builder().build(hyper_rustls::HttpsConnectorBuilder::new().with_native_roots().https_or_http().enable_http1().enable_http2().build()), auth);
// As the method needs a request, you would usually fill it with the desired information
// into the respective structure. Some of the parts shown here might not be applicable !
// Values shown here are possibly random and not representative !
let mut req = DebugInstanceRequest::default();
// You can configure optional parameters by calling the respective setters at will, and
// execute the final call using `doit()`.
// Values shown here are possibly random and not representative !
let result = hub.apps().services_versions_instances_debug(req, "appsId", "servicesId", "versionsId", "instancesId")
.doit().await;
match result {
Err(e) => match e {
// The Error enum provides details about what exactly happened.
// You can also just use its `Debug`, `Display` or `Error` traits
Error::HttpError(_)
|Error::Io(_)
|Error::MissingAPIKey
|Error::MissingToken(_)
|Error::Cancelled
|Error::UploadSizeLimitExceeded(_, _)
|Error::Failure(_)
|Error::BadRequest(_)
|Error::FieldClash(_)
|Error::JsonDecodeError(_, _) => println!("{}", e),
},
Ok(res) => println!("Success: {:?}", res),
}
```
## Handling Errors
All errors produced by the system are provided either as [Result](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::Result) enumeration as return value of
the doit() methods, or handed as possibly intermediate results to either the
[Hub Delegate](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::Delegate), or the [Authenticator Delegate](https://docs.rs/yup-oauth2/*/yup_oauth2/trait.AuthenticatorDelegate.html).
When delegates handle errors or intermediate values, they may have a chance to instruct the system to retry. This
makes the system potentially resilient to all kinds of errors.
## Uploads and Downloads
If a method supports downloads, the response body, which is part of the [Result](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::Result), should be
read by you to obtain the media.
If such a method also supports a [Response Result](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::ResponseResult), it will return that by default.
You can see it as meta-data for the actual media. To trigger a media download, you will have to set up the builder by making
this call: `.param("alt", "media")`.
Methods supporting uploads can do so using up to 2 different protocols:
*simple* and *resumable*. The distinctiveness of each is represented by customized
`doit(...)` methods, which are then named `upload(...)` and `upload_resumable(...)` respectively.
## Customization and Callbacks
You may alter the way an `doit()` method is called by providing a [delegate](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::Delegate) to the
[Method Builder](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::CallBuilder) before making the final `doit()` call.
Respective methods will be called to provide progress information, as well as determine whether the system should
retry on failure.
The [delegate trait](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::Delegate) is default-implemented, allowing you to customize it with minimal effort.
## Optional Parts in Server-Requests
All structures provided by this library are made to be [encodable](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::RequestValue) and
[decodable](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::ResponseResult) via *json*. Optionals are used to indicate that partial requests are responses
are valid.
Most optionals are are considered [Parts](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::Part) which are identifiable by name, which will be sent to
the server to indicate either the set parts of the request or the desired parts in the response.
## Builder Arguments
Using [method builders](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::CallBuilder), you are able to prepare an action call by repeatedly calling it's methods.
These will always take a single argument, for which the following statements are true.
* [PODs][wiki-pod] are handed by copy
* strings are passed as `&str`
* [request values](https://docs.rs/google-appengine1_beta5/5.0.2+20181005/google_appengine1_beta5/client::RequestValue) are moved
Arguments will always be copied or cloned into the builder, to make them independent of their original life times.
[wiki-pod]: http://en.wikipedia.org/wiki/Plain_old_data_structure
[builder-pattern]: http://en.wikipedia.org/wiki/Builder_pattern
[google-go-api]: https://github.com/google/google-api-go-client
# License
The **appengine1_beta5** library was generated by Sebastian Thiel, and is placed
under the *MIT* license.
You can read the full text at the repository's [license file][repo-license].
[repo-license]: https://github.com/Byron/google-apis-rsblob/main/LICENSE.md