email-api-client/client/client.go

package client

import "context"

type Client struct {
	config *Configuration
	token  *Token
}

type contextKeyType string

var contextKey contextKeyType = "client"

type accessTokenRequest struct {
	GrantType    string `json:"grant_type"`
	ClientId     string `json:"client_id"`
	ClientSecret string `json:"client_secret"`
}

func NewClient(config *Configuration) *Client {

	client := &Client{
		config: config,
	}

	token, err := getToken(client.config)
	if err != nil {
		return nil
	}

	client.token = token

	return client
}

func FromContext(ctx context.Context) *Client {
	client := ctx.Value(contextKey)
	if client == nil {
		return nil
	}

	if c, ok := client.(*Client); ok {
		return c
	}

	return nil
}

func NewWithContext(ctx context.Context) context.Context {
	client := ctx.Value(contextKey)
	if client == nil {
		return ctx
	}

	if c, ok := client.(*Client); ok {
		return context.WithValue(ctx, contextKey, c)
	}

	return ctx
}