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85 lines
2.4 KiB
Markdown
85 lines
2.4 KiB
Markdown
---
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id: go_sdk
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title: GO SDK
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---
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> You will need your `API URL` and your `API token` in order to connect the Client SDK to you Unleash instance. You can find this information in the “Admin” section Unleash management UI. [Read more](../user_guide/api-token)
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### 1. Install unleash-client-go {#1-install-unleash-client-go}
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To install the latest version of the client use:
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```bash
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go get github.com/Unleash/unleash-client-go/v3
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```
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If you are still using Unleash Server v2.x.x, then you should use:
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```bash
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go get github.com/Unleash/unleash-client-go
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```
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### 2. Initialize unleash {#2-initialize-unleash}
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The easiest way to get started with Unleash is to initialize it early in your application code:
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```go
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import (
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"github.com/Unleash/unleash-client-go/v3"
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)
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func init() {
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unleash.Initialize(
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unleash.WithListener(&unleash.DebugListener{}),
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unleash.WithAppName("my-application"),
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unleash.WithUrl("http://unleash.herokuapp.com/api/"),
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unleash.WithCustomHeaders(http.Header{"Authorization": {"<API token>"}}),
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)
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}
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```
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### 3. Use unleash {#3-use-unleash}
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After you have initialized the unleash-client you can easily check if a feature toggle is enabled or not.
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```go
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unleash.IsEnabled("app.ToggleX")
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```
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### 4. Stop unleash {#4-stop-unleash}
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To shut down the client (turn off the polling) you can simply call the destroy-method. This is typically not required.
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unleash.Close()
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### Built in activation strategies {#built-in-activation-strategies}
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The Go client comes with implementations for the built-in activation strategies provided by unleash.
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- DefaultStrategy
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- UserIdStrategy
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- FlexibleRolloutStrategy
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- GradualRolloutUserIdStrategy
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- GradualRolloutSessionIdStrategy
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- GradualRolloutRandomStrategy
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- RemoteAddressStrategy
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- ApplicationHostnameStrategy
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Read more about the strategies in [the activation strategies document](../user_guide/activation_strategy).
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### Unleash context {#unleash-context}
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In order to use some of the common activation strategies you must provide a [unleash-context](https://github.com/Unleash/unleash/blob/master/docs/unleash-context.md). This client SDK allows you to send in the unleash context as part of the `isEnabled` call:
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```go
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ctx := context.Context{
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UserId: "123",
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SessionId: "some-session-id",
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RemoteAddress: "127.0.0.1",
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}
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unleash.IsEnabled("someToggle", unleash.WithContext(ctx))
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```
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Read more at [github.com/Unleash/unleash-client-go](https://github.com/Unleash/unleash-client-go)
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