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Flagsmith Go SDK

The SDK client for Go https://flagsmith.com/. Flagsmith allows you to manage feature flags and remote config across multiple projects, environments and organisations.

The source code for the client is available on Github.

Getting Started​

go get github.com/Flagsmith/flagsmith-go-client
import (
  "github.com/Flagsmith/flagsmith-go-client"
)

Basic Usage​

The SDK is initialised against a single environment within a project on https://flagsmith.com, for example the Development or Production environment. You can find your environment key in the Environment settings page.

API Key

Retrieving feature flags for your project​

Sign Up and create account at https://flagsmith.com/

In your application initialise the Flagsmith client with your API key

fs := flagsmith.DefaultClient("<Your API Key>")

To check if a feature flag exists and is enabled:

fs := flagsmith.DefaultClient("<Your API Key>")
enabled, err := fs.FeatureEnabled("cart_abundant_notification_ab_test_enabled")
if err != nil {
    log.Fatal(err)
} else {
    if (enabled) {
        fmt.Printf("Feature enabled")
    }
}

To get the configuration value for feature flag value:

feature_value, err := fs.GetValue("cart_abundant_notification_ab_test")
if err != nil {
    log.Fatal(err)
} else {
    fmt.Printf(feature_value)
}

More examples can be found in the Tests

Override default configuration​

By default, client is using default configuration. You can override configuration as follows:

fs := flagsmith.NewClient("<Your API Key>", flagsmith.Config{BaseURI: "<Your API URL>"})