initial commit

internal/metal/providers/emapi/config.go

@@ -0,0 +1,81 @@
+package emapi
+
+import (
+	"fmt"
+	"net/url"
+)
+
+// Config provides configuration for connecting to the Equinix Metal API provider.
+type Config struct {
+	// BaseURL is the baseurl to use when connecting to the Equinix Metal API Provider.
+	BaseURL string
+
+	// AuthToken is the token to interact with the Equinix Metal API
+	AuthToken string
+
+	// ConsumerToken is the token to grant higher privileges in the Equinix Metal API
+	ConsumerToken string
+}
+
+func (c Config) Populated() bool {
+	return c.AuthToken != "" || c.ConsumerToken != "" || c.BaseURL != ""
+}
+
+// WithConfig applies all configurations defined in the config.
+func WithConfig(config Config) Option {
+	return func(c *Client) error {
+		var options []Option
+
+		if config.BaseURL != "" {
+			options = append(options, WithBaseURL(config.BaseURL))
+		}
+
+		if config.AuthToken != "" {
+			options = append(options, WithAuthToken(config.AuthToken))
+		}
+
+		if config.ConsumerToken != "" {
+			options = append(options, WithConsumerToken(config.ConsumerToken))
+		}
+
+		for _, opt := range options {
+			if err := opt(c); err != nil {
+				return err
+			}
+		}
+
+		return nil
+	}
+}
+
+// WithBaseURL updates the baseurl used by the client.
+func WithBaseURL(baseURL string) Option {
+	return func(c *Client) error {
+		u, err := url.Parse(baseURL)
+		if err != nil {
+			return fmt.Errorf("failed to parse emapi base url %s: %w", baseURL, err)
+		}
+
+		c.baseURL = u
+
+		return nil
+	}
+}
+
+// WithAuthToken sets the auth token to authenticate the request with.
+func WithAuthToken(token string) Option {
+	return func(c *Client) error {
+		c.authToken = token
+
+		return nil
+	}
+}
+
+// WithConsumerToken sets the consumer token to elevate privileges for the request.
+func WithConsumerToken(token string) Option {
+	return func(c *Client) error {
+		c.consumerToken = token
+
+		return nil
+	}
+}