Implement posts endpoints for APIv4 (#5480)

* Implement delete post endpoint for apiv4

* Implement POST search post endpoint for APIv4

* removed delete post quotes

* rearrange formatting

model/client4.go

@@ -10,6 +10,7 @@ import (
 	"io/ioutil"
 	"mime/multipart"
 	"net/http"
+	"strconv"
 	"strings"
 )
 
@@ -684,6 +685,16 @@ func (c *Client4) GetPost(postId string, etag string) (*Post, *Response) {
 	}
 }
 
+// DeletePost deletes a post from the provided post id string.
+func (c *Client4) DeletePost(postId string) (bool, *Response) {
+	if r, err := c.DoApiDelete(c.GetPostRoute(postId)); err != nil {
+		return false, &Response{StatusCode: r.StatusCode, Error: err}
+	} else {
+		defer closeBody(r)
+		return CheckStatusOK(r), BuildResponse(r)
+	}
+}
+
 // GetPostThread gets a post with all the other posts in the same thread.
 func (c *Client4) GetPostThread(postId string, etag string) (*PostList, *Response) {
 	if r, err := c.DoApiGet(c.GetPostRoute(postId)+"/thread", etag); err != nil {
@@ -705,6 +716,17 @@ func (c *Client4) GetPostsForChannel(channelId string, page, perPage int, etag s
 	}
 }
 
+// SearchPosts returns any posts with matching terms string.
+func (c *Client4) SearchPosts(teamId string, terms string, isOrSearch bool) (*PostList, *Response) {
+	requestBody := map[string]string{"terms": terms, "is_or_search": strconv.FormatBool(isOrSearch)}
+	if r, err := c.DoApiPost(c.GetTeamRoute(teamId)+"/posts/search", MapToJson(requestBody)); err != nil {
+		return nil, &Response{StatusCode: r.StatusCode, Error: err}
+	} else {
+		defer closeBody(r)
+		return PostListFromJson(r.Body), BuildResponse(r)
+	}
+}
+
 // File Section
 
 // UploadFile will upload a file to a channel, to be later attached to a post.