inital draft (#4883)

api/post_test.go

@@ -1389,3 +1389,33 @@ func TestGetPostById(t *testing.T) {
 		t.Fatal(respMetadata.Error)
 	}
 }
+
+func TestGetPermalinkTmp(t *testing.T) {
+	th := Setup().InitBasic()
+	Client := th.BasicClient
+	channel1 := th.BasicChannel
+
+	time.Sleep(10 * time.Millisecond)
+	post1 := &model.Post{ChannelId: channel1.Id, Message: "a" + model.NewId() + "a"}
+	post1 = Client.Must(Client.CreatePost(post1)).Data.(*model.Post)
+
+	time.Sleep(10 * time.Millisecond)
+	post2 := &model.Post{ChannelId: channel1.Id, Message: "a" + model.NewId() + "a"}
+	post2 = Client.Must(Client.CreatePost(post2)).Data.(*model.Post)
+
+	etag := Client.Must(Client.GetPost(channel1.Id, post1.Id, "")).Etag
+
+	// test etag caching
+	if cache_result, respMetadata := Client.GetPermalink(channel1.Id, post1.Id, etag); respMetadata.Error != nil {
+		t.Fatal(respMetadata.Error)
+	} else if cache_result != nil {
+		t.Log(cache_result)
+		t.Fatal("cache should be empty")
+	}
+
+	if results, respMetadata := Client.GetPermalink(channel1.Id, post1.Id, ""); respMetadata.Error != nil {
+		t.Fatal(respMetadata.Error)
+	} else if results == nil {
+		t.Fatal("should not be empty")
+	}
+}

model/client.go

@@ -1471,6 +1471,21 @@ func (c *Client) GetPostById(postId string, etag string) (*PostList, *ResponseMe
 	}
 }
 
+// GetPermalink returns a post list, based on the provided channel and post ID.
+func (c *Client) GetPermalink(channelId string, postId string, etag string) (*PostList, *ResponseMetadata) {
+	if r, err := c.DoApiGet(c.GetTeamRoute()+fmt.Sprintf("/pltmp/%v", postId), "", etag); err != nil {
+		return nil, &ResponseMetadata{StatusCode: r.StatusCode, Error: err}
+	} else {
+		defer closeBody(r)
+		return PostListFromJson(r.Body),
+			&ResponseMetadata{
+				StatusCode: r.StatusCode,
+				RequestId:  r.Header.Get(HEADER_REQUEST_ID),
+				Etag:       r.Header.Get(HEADER_ETAG_SERVER),
+			}
+	}
+}
+
 func (c *Client) DeletePost(channelId string, postId string) (*Result, *AppError) {
 	if r, err := c.DoApiPost(c.GetChannelRoute(channelId)+fmt.Sprintf("/posts/%v/delete", postId), ""); err != nil {
 		return nil, err