diff --git a/system/discourse/client.go b/system/discourse/client.go
new file mode 100644
index 0000000..f6ffc0b
--- /dev/null
+++ b/system/discourse/client.go
@@ -0,0 +1,200 @@
+package discourse
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+
+	"github.com/hashicorp/go-retryablehttp"
+)
+
+type Response struct {
+	Type       string                 `json:"type"`
+	Timestamp  int64                  `json:"timestamp"`
+	Message    string                 `json:"message"`
+	Validation map[string]interface{} `json:"validation,omitempty"`
+
+	Post  PostModel   `json:"post,omitempty"`
+	Posts []PostModel `json:"latest_posts,omitempty"`
+}
+
+type RequestError struct {
+	Response Response
+	Err      error
+}
+
+func (re *RequestError) Error() string {
+	return re.Err.Error()
+}
+
+func (re *RequestError) Type() string {
+	return re.Response.Type
+}
+
+func (re *RequestError) Message() string {
+	return re.Response.Message
+}
+
+type Logger interface {
+	Debug(args ...interface{})
+	Debugf(format string, args ...interface{})
+
+	Info(args ...interface{})
+	Infof(format string, args ...interface{})
+
+	Warn(args ...interface{})
+	Warnf(format string, args ...interface{})
+
+	Error(args ...interface{})
+	Errorf(format string, args ...interface{})
+
+	Fatal(args ...interface{})
+	Fatalf(format string, args ...interface{})
+}
+
+type StdLogger struct {
+	L Logger
+}
+
+func NewStdLogger(l Logger) retryablehttp.Logger {
+	return &StdLogger{
+		L: l,
+	}
+}
+
+func (l *StdLogger) Printf(message string, v ...interface{}) {
+	l.L.Debug(message, v)
+}
+
+type ClientConfig struct {
+	Endpoint    string
+	Credentials map[string]string
+	HTTPClient  *http.Client
+	Logger      Logger
+}
+
+type Client struct {
+	httpClient  *retryablehttp.Client
+	endpoint    *url.URL
+	credentials map[string]string
+	logger      Logger
+	Posts       PostsService
+}
+
+func NewDefaultClientConfig(
+	endpoint string,
+	credentials map[string]string,
+	logger Logger,
+) ClientConfig {
+	return ClientConfig{
+		Endpoint:    endpoint,
+		Credentials: credentials,
+		HTTPClient:  http.DefaultClient,
+		Logger:      logger,
+	}
+}
+
+func NewClient(cc *ClientConfig) *Client {
+	c := new(Client)
+	c.logger = cc.Logger
+	c.httpClient = retryablehttp.NewClient()
+	c.httpClient.RetryMax = 3
+	if c.logger != nil {
+		c.httpClient.Logger = NewStdLogger(c.logger)
+	}
+	c.httpClient.HTTPClient = cc.HTTPClient
+	c.endpoint, _ = url.Parse(cc.Endpoint)
+	c.credentials = cc.Credentials
+	fmt.Printf("%v\n", c.credentials)
+
+	c.Posts = &PostServiceHandler{client: c}
+
+	return c
+}
+
+func (c *Client) NewRequest(
+	ctx context.Context,
+	method string,
+	location string,
+	body interface{},
+) (*http.Request, error) {
+	var parsedURL *url.URL
+	var req *http.Request
+	var err error
+
+	if parsedURL, err = c.endpoint.Parse(location); err != nil {
+		return nil, err
+	}
+
+	buffer := new(bytes.Buffer)
+	if body != nil {
+		if err = json.NewEncoder(buffer).Encode(body); err != nil {
+			return nil, err
+		}
+	}
+
+	if req, err = http.NewRequest(
+		method,
+		parsedURL.String(),
+		buffer,
+	); err != nil {
+		return nil, err
+	}
+
+	req.Header.Add("User-Agent", "gobbs")
+	req.Header.Add("Accept", "application/json")
+	req.Header.Add("Content-Type", "application/json")
+	req.Header.Add("Api-Username", c.credentials["username"])
+	req.Header.Add("Api-Key", c.credentials["key"])
+
+	fmt.Printf("%v\n", req)
+	return req, nil
+}
+
+func (c *Client) Do(
+	ctx context.Context,
+	req *http.Request,
+	content *Response,
+) error {
+	var rreq *retryablehttp.Request
+	var res *http.Response
+	var body []byte
+	var err error
+
+	if rreq, err = retryablehttp.FromRequest(req); err != nil {
+		return err
+	}
+
+	rreq = rreq.WithContext(ctx)
+	if res, err = c.httpClient.Do(rreq); err != nil {
+		return err
+	}
+	defer res.Body.Close()
+
+	if body, err = ioutil.ReadAll(res.Body); err != nil {
+		return err
+	}
+
+	if content != nil {
+		if err = json.Unmarshal(body, content); err != nil {
+			return err
+		}
+	}
+
+	fmt.Printf("%v\n", res)
+
+	if res.StatusCode < http.StatusOK ||
+		res.StatusCode > http.StatusNoContent {
+		return &RequestError{
+			Err:      errors.New("Non-2xx status code"),
+			Response: *content,
+		}
+	}
+
+	return nil
+}
diff --git a/system/discourse/discourse.go b/system/discourse/discourse.go
index 4dcd8ed..eb34215 100644
--- a/system/discourse/discourse.go
+++ b/system/discourse/discourse.go
@@ -2,6 +2,7 @@ package discourse
 
 import (
 	"bufio"
+	"context"
 	"crypto/rand"
 	"crypto/rsa"
 	"crypto/x509"
@@ -9,6 +10,7 @@ import (
 	"encoding/json"
 	"encoding/pem"
 	"fmt"
+	"net/http"
 	"net/url"
 	"os"
 	"strings"
@@ -17,10 +19,12 @@ import (
 	"github.com/mrusme/gobbs/models/post"
 	"github.com/mrusme/gobbs/system/adapter"
 	"github.com/pkg/browser"
+	"go.uber.org/zap"
 )
 
 type System struct {
 	config map[string]interface{}
+	logger *zap.SugaredLogger
 }
 
 type UserAPIKey struct {
@@ -38,6 +42,10 @@ func (sys *System) SetConfig(cfg *map[string]interface{}) {
 	sys.config = *cfg
 }
 
+func (sys *System) SetLogger(logger *zap.SugaredLogger) {
+	sys.logger = logger
+}
+
 func (sys *System) Load() error {
 
 	return nil
@@ -149,12 +157,31 @@ func (sys *System) Connect(sysURL string) error {
 	if sys.config == nil {
 		sys.config = make(map[string]interface{})
 	}
+	sys.config["url"] = sysURL
 	sys.config["credentials"] = credentials
 
 	return nil
 }
 
 func (sys *System) ListPosts() ([]post.Post, error) {
+	credentials := make(map[string]string)
+	for k, v := range (sys.config["credentials"]).(map[string]interface{}) {
+		credentials[k] = v.(string)
+	}
+	c := NewClient(&ClientConfig{
+		Endpoint:    sys.config["url"].(string),
+		Credentials: credentials,
+		HTTPClient:  http.DefaultClient,
+		Logger:      sys.logger,
+	})
+
+	posts, err := c.Posts.List(context.Background())
+	if err != nil {
+		return []post.Post{}, err
+	}
+
+	fmt.Printf("%v\n", posts)
+
 	return []post.Post{}, nil
 }
 
diff --git a/system/discourse/posts.go b/system/discourse/posts.go
new file mode 100644
index 0000000..2caa206
--- /dev/null
+++ b/system/discourse/posts.go
@@ -0,0 +1,115 @@
+package discourse
+
+import (
+	"context"
+	"net/http"
+)
+
+const PostsBaseURL = "/posts"
+
+type PostModel struct {
+	ID                string `json:"id"`
+	Name              string `json:"name"`
+	Username          string `json:"username"`
+	AvatarTemplate    string `json:"avater_template"`
+	CreatedAt         string `json:"created_at"`
+	Cooked            string `json:"cooked"`
+	PostNumber        int    `json:"post_number"`
+	PostType          int    `json:"post_type"`
+	UpdatedAt         string `json:"updated_at"`
+	ReplyCount        int    `json:"reply_count"`
+	IncomingLinkCount int    `json:"incoming_link_count"`
+	Reads             int    `json:"reads"`
+	ReadersCount      int    `json:"readers_count"`
+	Score             int    `json:"score"`
+	Yours             bool   `json:"yours"`
+	TopicID           int    `json:"topic_id"`
+	TopicSlug         string `json:"topic_slug"`
+	TopicTitle        string `json:"topic_title"`
+	TopicHTMLTitle    string `json:"topic_html_title"`
+	CategoryID        int    `json:"category_id"`
+	DisplayUsername   string `json:"display_username"`
+	PrimaryGroupName  string `json:"primary_group_name"`
+	FlairName         string `json:"flair_name"`
+	FlairURL          string `json:"flair_url"`
+	FlairBGColor      string `json:"flair_bg_color"`
+	FlairColor        string `json:"flair_color"`
+	Version           int    `json:"version"`
+	CanEdit           bool   `json:"can_edit"`
+	CanDelete         bool   `json:"can_delete"`
+	CanRecover        bool   `json:"can_recover"`
+	CanWiki           bool   `json:"can_wiki"`
+	UserTitle         string `json:"user_title"`
+	Raw               string `json:"raw"`
+	ActionsSummary    struct {
+		ID     int  `json:"id"`
+		CanAct bool `json:"can_act"`
+	} `json:"actions_summary"`
+	Moderator                   bool   `json:"moderator"`
+	Admin                       bool   `json:"admin"`
+	Staff                       bool   `json:"staff"`
+	UserID                      int    `json:"user_id"`
+	Hidden                      bool   `json:"hidden"`
+	TrustLevel                  int    `json:"trust_level"`
+	DeletedAt                   string `json:"deleted_at"`
+	UserDeleted                 bool   `json:"user_deleted"`
+	EditReason                  string `json:"edit_reason"`
+	CanViewEditHistory          bool   `json:"can_view_edit_history"`
+	Wiki                        bool   `json:"wiki"`
+	ReviewableID                string `json:"reviewable_id"`
+	ReviewableScoreCount        int    `json:"reviewable_score_count"`
+	ReviewableScorePendingCount int    `json:"reviewable_score_pending_count"`
+}
+
+type PostsService interface {
+	Show(
+		ctx context.Context,
+		id string,
+	) (PostModel, error)
+	List(
+		ctx context.Context,
+	) ([]PostModel, error)
+}
+
+type PostServiceHandler struct {
+	client *Client
+}
+
+// Show
+func (a *PostServiceHandler) Show(
+	ctx context.Context,
+	id string,
+) (PostModel, error) {
+	uri := PostsBaseURL + "/" + id + ".json"
+
+	req, err := a.client.NewRequest(ctx, http.MethodGet, uri, nil)
+	if err != nil {
+		return PostModel{}, err
+	}
+
+	response := new(Response)
+	if err = a.client.Do(ctx, req, response); err != nil {
+		return PostModel{}, err
+	}
+
+	return response.Post, nil
+}
+
+// List
+func (a *PostServiceHandler) List(
+	ctx context.Context,
+) ([]PostModel, error) {
+	uri := PostsBaseURL + ".json"
+
+	req, err := a.client.NewRequest(ctx, http.MethodGet, uri, nil)
+	if err != nil {
+		return []PostModel{}, err
+	}
+
+	response := new(Response)
+	if err = a.client.Do(ctx, req, response); err != nil {
+		return []PostModel{}, err
+	}
+
+	return response.Posts, nil
+}
diff --git a/system/lemmy/lemmy.go b/system/lemmy/lemmy.go
index d32a9d6..574c425 100644
--- a/system/lemmy/lemmy.go
+++ b/system/lemmy/lemmy.go
@@ -3,10 +3,12 @@ package lemmy
 import (
 	"github.com/mrusme/gobbs/models/post"
 	"github.com/mrusme/gobbs/system/adapter"
+	"go.uber.org/zap"
 )
 
 type System struct {
 	config map[string]interface{}
+	logger *zap.SugaredLogger
 }
 
 func (sys *System) GetConfig() map[string]interface{} {
@@ -17,6 +19,10 @@ func (sys *System) SetConfig(cfg *map[string]interface{}) {
 	sys.config = *cfg
 }
 
+func (sys *System) SetLogger(logger *zap.SugaredLogger) {
+	sys.logger = logger
+}
+
 func (sys *System) Connect(sysURL string) error {
 	return nil
 }
diff --git a/system/system.go b/system/system.go
index ef5ccb8..cde6b64 100644
--- a/system/system.go
+++ b/system/system.go
@@ -7,11 +7,13 @@ import (
 	"github.com/mrusme/gobbs/system/adapter"
 	"github.com/mrusme/gobbs/system/discourse"
 	"github.com/mrusme/gobbs/system/lemmy"
+	"go.uber.org/zap"
 )
 
 type System interface {
 	GetConfig() map[string]interface{}
 	SetConfig(cfg *map[string]interface{})
+	SetLogger(logger *zap.SugaredLogger)
 	GetCapabilities() []adapter.Capability
 
 	Connect(sysURL string) error
@@ -20,7 +22,11 @@ type System interface {
 	ListPosts() ([]post.Post, error)
 }
 
-func New(sysType string, sysConfig *map[string]interface{}) (System, error) {
+func New(
+	sysType string,
+	sysConfig *map[string]interface{},
+	logger *zap.SugaredLogger,
+) (System, error) {
 	var sys System
 
 	switch sysType {
@@ -33,6 +39,7 @@ func New(sysType string, sysConfig *map[string]interface{}) (System, error) {
 	}
 
 	sys.SetConfig(sysConfig)
+	sys.SetLogger(logger)
 	err := sys.Load()
 	if err != nil {
 		return nil, err