AWS SDK for JavaScript Proton Client for Node.js, Browser and React Native.
This is the Proton Service API Reference. It provides descriptions, syntax and usage examples for each of the actions and data types for the Proton service.
The documentation for each action shows the Query API request parameters and the XML response.
Alternatively, you can use the Amazon Web Services CLI to access an API. For more information, see the Amazon Web Services Command Line Interface User Guide.
The Proton service is a two-pronged automation framework. Administrators create service templates to provide standardized infrastructure and deployment tooling for serverless and container based applications. Developers, in turn, select from the available service templates to automate their application or service deployments.
Because administrators define the infrastructure and tooling that Proton deploys and manages, they need permissions to use all of the listed API operations.
When developers select a specific infrastructure and tooling set, Proton deploys their applications. To monitor their applications that are running on Proton, developers need permissions to the service create, list, update and delete API operations and the service instance list and update API operations.
To learn more about Proton, see the Proton User Guide.
Ensuring Idempotency
When you make a mutating API request, the request typically returns a result before the asynchronous workflows of the operation are complete. Operations might also time out or encounter other server issues before they're complete, even if the request already returned a result. This might make it difficult to determine whether the request succeeded. Moreover, you might need to retry the request multiple times to ensure that the operation completes successfully. However, if the original request and the subsequent retries are successful, the operation occurs multiple times. This means that you might create more resources than you intended.
Idempotency ensures that an API request action completes no more than one time. With an idempotent request, if the original request action completes successfully, any subsequent retries complete successfully without performing any further actions. However, the result might contain updated information, such as the current creation status.
The following lists of APIs are grouped according to methods that ensure idempotency.
Idempotent create APIs with a client token
The API actions in this list support idempotency with the use of a client token. The corresponding Amazon Web Services CLI commands also support idempotency using a client token. A client token is a unique, case-sensitive string of up to 64 ASCII characters. To make an idempotent API request using one of these actions, specify a client token in the request. We recommend that you don't reuse the same client token for other API requests. If you don’t provide a client token for these APIs, a default client token is automatically provided by SDKs.
Given a request action that has succeeded:
If you retry the request using the same client token and the same parameters, the retry succeeds without performing any further actions other than returning the original resource detail data in the response.
If you retry the request using the same client token, but one or more of the parameters are different, the retry
throws a ValidationException with an IdempotentParameterMismatch error.
Client tokens expire eight hours after a request is made. If you retry the request with the expired token, a new resource is created.
If the original resource is deleted and you retry the request, a new resource is created.
Idempotent create APIs with a client token:
-
CreateEnvironmentTemplateVersion
-
CreateServiceTemplateVersion
-
CreateEnvironmentAccountConnection
Idempotent create APIs
Given a request action that has succeeded:
If you retry the request with an API from this group, and the original resource hasn't been modified, the retry succeeds without performing any further actions other than returning the original resource detail data in the response.
If the original resource has been modified, the retry throws a ConflictException.
If you retry with different input parameters, the retry throws a ValidationException with an
IdempotentParameterMismatch error.
Idempotent create APIs:
-
CreateEnvironmentTemplate
-
CreateServiceTemplate
-
CreateEnvironment
-
CreateService
Idempotent delete APIs
Given a request action that has succeeded:
When you retry the request with an API from this group and the resource was deleted, its metadata is returned in the response.
If you retry and the resource doesn't exist, the response is empty.
In both cases, the retry succeeds.
Idempotent delete APIs:
-
DeleteEnvironmentTemplate
-
DeleteEnvironmentTemplateVersion
-
DeleteServiceTemplate
-
DeleteServiceTemplateVersion
-
DeleteEnvironmentAccountConnection
Asynchronous idempotent delete APIs
Given a request action that has succeeded:
If you retry the request with an API from this group, if the original request delete operation status is
DELETE_IN_PROGRESS, the retry returns the resource detail data in the response without performing any
further actions.
If the original request delete operation is complete, a retry returns an empty response.
Asynchronous idempotent delete APIs:
-
DeleteEnvironment
-
DeleteService
To install the this package, simply type add or install @aws-sdk/client-proton using your favorite package manager:
npm install @aws-sdk/client-protonyarn add @aws-sdk/client-protonpnpm add @aws-sdk/client-proton
The AWS SDK is modulized by clients and commands.
To send a request, you only need to import the ProtonClient and
the commands you need, for example ListComponentsCommand:
// ES5 example
const { ProtonClient, ListComponentsCommand } = require("@aws-sdk/client-proton");// ES6+ example
import { ProtonClient, ListComponentsCommand } from "@aws-sdk/client-proton";To send a request, you:
- Initiate client with configuration (e.g. credentials, region).
- Initiate command with input parameters.
- Call
sendoperation on client with command object as input. - If you are using a custom http handler, you may call
destroy()to close open connections.
// a client can be shared by different commands.
const client = new ProtonClient({ region: "REGION" });
const params = {
/** input parameters */
};
const command = new ListComponentsCommand(params);We recommend using await operator to wait for the promise returned by send operation as follows:
// async/await.
try {
const data = await client.send(command);
// process data.
} catch (error) {
// error handling.
} finally {
// finally.
}Async-await is clean, concise, intuitive, easy to debug and has better error handling as compared to using Promise chains or callbacks.
You can also use Promise chaining to execute send operation.
client.send(command).then(
(data) => {
// process data.
},
(error) => {
// error handling.
}
);Promises can also be called using .catch() and .finally() as follows:
client
.send(command)
.then((data) => {
// process data.
})
.catch((error) => {
// error handling.
})
.finally(() => {
// finally.
});We do not recommend using callbacks because of callback hell, but they are supported by the send operation.
// callbacks.
client.send(command, (err, data) => {
// process err and data.
});The client can also send requests using v2 compatible style. However, it results in a bigger bundle size and may be dropped in next major version. More details in the blog post on modular packages in AWS SDK for JavaScript
import * as AWS from "@aws-sdk/client-proton";
const client = new AWS.Proton({ region: "REGION" });
// async/await.
try {
const data = await client.listComponents(params);
// process data.
} catch (error) {
// error handling.
}
// Promises.
client
.listComponents(params)
.then((data) => {
// process data.
})
.catch((error) => {
// error handling.
});
// callbacks.
client.listComponents(params, (err, data) => {
// process err and data.
});When the service returns an exception, the error will include the exception information, as well as response metadata (e.g. request id).
try {
const data = await client.send(command);
// process data.
} catch (error) {
const { requestId, cfId, extendedRequestId } = error.$metadata;
console.log({ requestId, cfId, extendedRequestId });
/**
* The keys within exceptions are also parsed.
* You can access them by specifying exception names:
* if (error.name === 'SomeServiceException') {
* const value = error.specialKeyInException;
* }
*/
}Please use these community resources for getting help. We use the GitHub issues for tracking bugs and feature requests, but have limited bandwidth to address them.
- Visit Developer Guide or API Reference.
- Check out the blog posts tagged with
aws-sdk-json AWS Developer Blog. - Ask a question on StackOverflow and tag it with
aws-sdk-js. - Join the AWS JavaScript community on gitter.
- If it turns out that you may have found a bug, please open an issue.
To test your universal JavaScript code in Node.js, browser and react-native environments, visit our code samples repo.
This client code is generated automatically. Any modifications will be overwritten the next time the @aws-sdk/client-proton package is updated.
To contribute to client you can check our generate clients scripts.
This SDK is distributed under the Apache License, Version 2.0, see LICENSE for more information.