Getting Started with Golang SDK

Golang SDK is a powerful tool for building scalable and concurrent systems. It's designed to be simple and easy to use, making it a great choice for beginners.

To get started, you'll need to install the Go programming language on your machine. This can be done using a package manager like Homebrew or by downloading the binary from the official Go website.

One of the first things you'll notice about Golang is its use of concurrency. This allows your program to perform multiple tasks at the same time, making it much faster and more efficient.

Discover more: Go vs Golang

Getting started with the Golang SDK is a breeze. The SDK is compatible with Go version 1.12.x and up.

To get started, you'll need to set up your project for Go modules. This is a requirement for SDK v2 and above. You can do this by using the `go get` command.

Using `go get` is also the best way to add the SDK and desired service clients to your Go dependencies explicitly. This is the recommended approach to get started working with the SDK.

For more insights, see: Azure Sdk Go

To install the current release, you'll need to use the `go get` command. This will add the SDK and desired service clients to your Go dependencies explicitly.

The SDK is compatible with Go version 1.12.x and up, so make sure your Go version meets this requirement.

You can use the `go get` command to install the current release. For example, you can use the v2 SDK to make an API request using the SDK's Amazon DynamoDB client.

Here are the steps to install the current release:

To get started with initializing a client, you'll need to construct a client instance by passing in your Okta domain name and API token. This is a crucial step in setting up your project.

You can hard-code these values for quick tests, but for real projects, it's recommended to use a more secure way of storing them, such as environment variables. This library supports various configuration sources, as covered in the configuration reference section.

To create a client instance, you'll need to use the okta.NewConfiguration() method, which allows you to pass custom instances of http.Client and cache.Cache. This gives you flexibility in configuring your client to suit your project's needs.

For another approach, see: Golang Use Cases

The Go SDK allows you to configure the client with various settings. You can specify the configuration sources in a specific order, with higher numbers taking precedence over lower numbers.

The Go SDK looks for configuration in the following sources: an okta.yaml file in a .okta folder in the current user's home directory, a .okta.yaml file in the application or project's root directory, environment variables, and configuration explicitly passed to the constructor.

You can use a configuration setter object to configure the client. The configuration setter object has several methods that allow you to set different configuration options.

Here's a list of some of the configuration options you can set using the configuration setter object:

Caching helps keep HTTP requests to the Okta API at a minimum by utilizing a memory cache with a time to live on its cached values.

You can configure the client with WithCache(false) to completely disable the request memory cache. Access Tokens from OAuth requests are always cached.

By default, the SDK retries requests that are returned with a 429 exception. This can be disabled by setting OKTA_CLIENT_REQUEST_TIMEOUT and OKTA_CLIENT_RATELIMIT_MAXRETRIES to 0.

Caching helps keep HTTP requests to the Okta API at a minimum by storing cached values in memory with a time to live.

You can configure the client to use a memory cache by setting `cache` to `true` using methods like `ObjectWithCache` and `WithCacheTtl`. This is the default configuration.

To clear the request cache, use the `refresh next` facility, especially after operations like deleting an item and listing items again.

Access Tokens from OAuth requests are always cached, regardless of the cache manager.

You can create a custom cache driver by implementing the `cache.Cache` interface.

By passing custom instances of `http.Client` and `cache.Cache` to `okta.NewConfiguration()`, you can extend the client to use your custom cache manager.

Here's an interesting read: Golang Version Manager

Connection Retry is a feature that helps your app handle temporary issues with the Okta API. By default, this SDK retries requests that are returned with a 429 exception.

You can disable this functionality by setting OKTA_CLIENT_REQUEST_TIMEOUT and OKTA_CLIENT_RATELIMIT_MAXRETRIES to 0. Setting only one of the values to zero disables that check.

The SDK will make four retry attempts by default, but you can adjust this by setting OKTA_CLIENT_RATELIMIT_MAXRETRIES to a different value. If you set OKTA_CLIENT_REQUEST_TIMEOUT to 45 seconds and OKTA_CLIENT_RATELIMIT_MAXRETRIES to 0, the SDK will continue to retry indefinitely for 45 seconds.

The SDK uses the Date header from the server to calculate the delta, which is more reliable than system time. It adds 1 second to account for some clock skew in the service.

If the backoff_seconds calculation exceeds the request timeout, the initial 429 response will be allowed through without additional attempts. This means you should set your request timeout to a value that's large enough to accommodate the retry attempts.

Authentication is a crucial aspect of the GoLang SDK. The SDK supports OAuth 2.0 with private key authentication for service-to-service applications. This is a secure way to authenticate requests.

To use private key authentication, you'll need to register a new service application using a private and public key pair. Key pairs can only be used to manage certain Okta endpoints, so make sure to check the supported scopes.

The SDK will request an access token for you, so you won't need an API Token. To construct a client instance, pass the necessary parameters, including the private key.

Alternatively, you can use OAuth 2.0 with JWT key authentication. This approach is similar to private key authentication, but instead of providing a public and private key pair, you can use a pre-signed JWT. The SDK will handle the access token request for you.

Remember to generate production keys locally and audit their code to ensure security. The mkjwk can be used to create your keys, but only use it running locally.

To implement the Okta client in your Golang SDK, you'll need to follow these steps. First, create an Okta app based on your requirements, and note that the app type will determine the sign-in method and authorization flow.

The table below lists the app types that issue Bearer tokens, including the sign-in method, application type, and details for each.

Once you've created your Okta app, you'll need to make a call to the Org Authorization Server endpoint to get the authorization code.

To implement an Okta app, you'll need to create it based on your requirements. This can be a Web Application, Single-Page Application, or Native Application, depending on your needs.

For OIDC - OpenID Connect, you'll need to choose the right application type: Web Application, Single-Page Application, or Native Application. The details for each type are as follows:

Once you've created your Okta app, make a call to the Org Authorization Server endpoint to get the authorization code.

You can extend the client by passing custom instances of http.Client and cache.Cache to okta.NewConfiguration(). This allows for more flexibility and control over the client's behavior.

Hard-coding the Okta domain and API token is not recommended for real projects, so it's good to know that you can pass custom configuration sources, like environment variables, to the client.

You can create a custom cache driver by implementing cache.Cache, giving you more control over how the client caches data.

By extending the client, you can tailor its behavior to your specific needs and improve its performance in your application.

The client's memory cache has a time to live on its cached values, which helps keep HTTP requests to the Okta API at a minimum.

You can configure the client to disable the request memory cache by using the WithCache(false) method.

Access Tokens from OAuth requests are always cached, regardless of the cache manager.

To ensure you're accessing recent data, use the refresh next facility to clear the request cache after making changes, such as deleting an item and then listing items again.

You can create a custom cache driver by implementing the cache.Cache interface.

Go SDK makes it safe to use multithreading, so you can write more efficient code without worrying about threading issues. This is a big deal because it allows your program to handle multiple tasks at the same time, making it run faster and more smoothly.

Multithreading is a technique that enables your program to perform multiple tasks simultaneously, which can be especially useful for tasks that don't rely on each other, like making API calls or processing data.

When working with the Golang SDK, you'll often need to handle workflow and messaging tasks.

To send messages to and read the state of Workflow Executions, you can use Signals, Queries, and Updates.

You can develop with Signals to send messages to Workflow Executions, which can trigger actions or notify other services.

Queries allow you to read the state of Workflow Executions, giving you visibility into the current status of your workflows.

Updates are used to modify the state of Workflow Executions, making them a crucial part of workflow management.

Here's a quick rundown of how to use these concepts:

Temporal Go SDK uses versioning to manage changes in workflow definitions without causing non-deterministic behavior. This is achieved through Temporal Go SDK Versioning APIs and runtime checking.

For maintenance and support, refer to the AWS SDKs and Tools Shared Configuration and Credentials Reference Guide for information on AWS SDKs and Tools Maintenance Policy and AWS SDKs and Tools Version Support Matrix. The v2 SDK follows the upstream release policy with an additional six months of support for the most recently deprecated language version.

Here's a brief overview of the library's release status:

Although the 2.x, 3.x, and 4.x versions are no longer recommended, they can still be used, but you should plan to migrate to the new 5.x version.

Versioning is a crucial aspect of software development, and it's essential to understand how to manage different versions of your code. Temporal Go SDK, for instance, has a versioning system that allows for change workflow definitions without causing non-deterministic behavior in running workflows.

Temporal Go SDK uses Runtime checking to ensure that changes to workflow definitions don't impact running workflows. This is a great feature that helps maintain the stability of your applications.

The library uses semantic versioning and follows Okta's library version policy. This means that each version of the library has a specific status, such as Beta Release or Release.

Here's a breakdown of the current release status:

While earlier versions like 2.x, 3.x, and 4.x are still usable, they are either retired or in an unsupported state. You should plan to migrate to the new 5.x version, which is the latest release.

Maintenance and Support is a crucial aspect of any software development project. The AWS SDKs and Tools Shared Configuration and Credentials Reference Guide provides valuable information on maintenance and support for SDK major versions and their underlying dependencies.

You can find detailed information on the AWS SDKs and Tools Maintenance Policy and the AWS SDKs and Tools Version Support Matrix in the referenced guide. These resources outline the support lifecycle for AWS SDKs.

The v2 SDK follows the upstream release policy, which means it receives updates and bug fixes until the next major version is released. Additionally, the v2 SDK gets an extra six months of support for the most recently deprecated language version.

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V5.0.0 marked a significant change in the Workos-go library, re-introducing metadata removal support, a breaking change made by @nicknisi in pull request 457.

This update brought back a feature that had been previously removed, demonstrating the importance of versioning in software development.

The full changelog for this update is available on the Workos-go GitHub page, comparing the changes between v4.46.1 and v5.0.0.

Here are the key highlights of the v5.0.0 update:

By tracking version changes like this, developers can stay up-to-date on the latest features and fixes, and plan their work accordingly.

In version 4.46.0, a significant update was made that allows for the clearing of existing metadata fields on a user.

This was achieved by adding the ability to pass in nil values to metadata keys when updating a user.

By doing so, developers can now effectively clear existing metadata fields, which can be particularly useful in certain scenarios.

For example, if you need to remove a specific piece of metadata from a user's profile, you can simply pass in nil for that key when updating the user.

V4.22.0 marked a significant milestone in our versioning history, with the introduction of bug fixes for the notorious "login loop" issue that had been plaguing users since V4.20.0.

This update also brought improvements to the performance of our database queries, resulting in faster load times and a more seamless user experience.

The "login loop" issue was a major pain point for our team, and we worked tirelessly to resolve it.

Security is a top priority when developing a GoLang SDK. You can use custom converters and codecs to implement data encryption, compression, and other data handling techniques.

To get started, you'll want to learn how to use a custom Payload Codec in Go. This will allow you to encrypt and compress your data in a way that's tailored to your specific needs.

A custom Payload Codec in Go can be used to handle sensitive data, such as passwords or credit card numbers. By implementing a custom codec, you can ensure that your data is protected from unauthorized access.

Here are some key benefits of using a custom Payload Codec in Go:

You can also use custom payload conversion to handle data in different formats. This is useful when working with different data sources or systems that require different data formats.

To implement custom payload conversion, you'll need to use a custom Payload Converter in Go. This will allow you to convert your data from one format to another, while also handling encryption and compression.

By following these steps, you can ensure that your GoLang SDK is secure and reliable. Remember to always use custom converters and codecs to implement data encryption and compression, and to use custom payload conversion to handle data in different formats.

The v2 SDK uses GitHub Issues to track feature requests and issues with the SDK.

You can provide feedback by filing GitHub Issues on the SDK, which is the preferred mechanism to give feedback and allow other users to engage in the conversation.

To report bugs or provide feedback, file a GitHub Issue on the SDK.

All issues you open will be evaluated and included in the SDK's roadmap for the GA launch.

Additional reading: How to Update a Github Using Golang

You can also contribute to the SDK by opening pull requests for fixes or additions to the AWS SDK for Go 2.0.

All pull requests must be submitted under the Apache 2.0 license and will be reviewed by an SDK team member before being merged in.

Accompanying unit tests, where possible, are appreciated.

The GoLang SDK has undergone significant updates in recent versions.

The GoLang SDK now supports multiple authentication methods, including OAuth and API keys.

One notable change is the addition of a new error handling mechanism.

This allows for more robust error handling and debugging.

The SDK's API has been streamlined to improve performance and reduce latency.

This results in faster response times and a better overall user experience.

The GoLang SDK now includes built-in support for logging and monitoring.

This enables developers to more easily track and debug their applications.

The SDK's documentation has also been improved, with more examples and tutorials.

This makes it easier for developers to get started with the SDK and build their applications.

For more insights, see: Rest Api with Golang

The Golang SDK has undergone some changes that might affect your code.

The v5 release includes a breaking change that affects how you update user metadata. UpdateUserOpts.Metadata field type has changed from map[string]string to map[string]*string.

This change allows you to set metadata values to nil to remove them server-side. This means you can now explicitly remove metadata values when updating a user.

Here's a summary of the breaking change:

The AWS SDK is a crucial part of any Go project that interacts with AWS services. It provides a convenient and efficient way to access AWS resources.

The v2 AWS SDK for Go, specifically, is designed to be more modern and flexible than its predecessor. It requires a minimum version of Go 1.22.

If you're planning to use the v2 SDK, make sure your Go version meets this requirement to avoid any compatibility issues.

The release notes for the v2 SDK are a great resource for staying up-to-date on the latest bug fixes, updates, and features added to the SDK.

AWS reserves the right to drop support for unsupported Go versions earlier to address critical security issues.

For more insights, see: Golang Go

To provide feedback or report bugs, file GitHub Issues on the SDK. This is the preferred mechanism to give feedback so that other users can engage in the conversation, +1 issues, etc.

We use GitHub Projects to track large tasks spanning multiple pull requests, such as refactoring the SDK's internal request lifecycle.

You can open pull requests for fixes or additions to the AWS SDK for Go 2.0. All pull requests must be submitted under the Apache 2.0 license.

Accompanying unit tests, where possible, are appreciated.