adding pagination

app/app.go

@@ -3,6 +3,7 @@ package app
 import (
 	"bytes"
 	"net/http"
+	"strconv"
 	"time"
 
 	"github.com/gin-gonic/gin"
@@ -29,6 +30,11 @@ func SetupRoutes(app_settings common.AppSettings, database database.Database) *g
 	// DO not cache as it needs to handlenew form values
 	r.POST("/contact-send", makeContactFormHandler())
 
+	// this will setup the route for pagination
+	r.GET("/page/:num", func(c *gin.Context) {
+		homeHandler(c, app_settings, database)
+	})
+
 	r.Static("/static", "./static")
 	return r
 }
@@ -75,7 +81,16 @@ func addCachableHandler(e *gin.Engine, method string, endpoint string, generator
 // / This function will act as the handler for
 // / the home page
 func homeHandler(c *gin.Context, settings common.AppSettings, db database.Database) ([]byte, error) {
-	posts, err := db.GetPosts()
+	pageNumQuery := c.Param("num")
+	pageNum, err := strconv.Atoi(pageNumQuery)
+	if err != nil {
+		return nil, err
+	}
+
+	limit := 10 // or whatever limit you want
+	offset := (pageNum - 1) * limit
+
+	posts, err := db.GetPosts(limit, offset)
 	if err != nil {
 		return nil, err
 	}

database/database.go

@@ -28,8 +28,9 @@ type SqlDatabase struct {
 
 // / This function gets all the posts from the current
 // / database connection.
-func (db SqlDatabase) GetPosts() (all_posts []common.Post, err error) {
-	rows, err := db.Connection.Query("SELECT title, excerpt, id FROM posts;")
+func (db SqlDatabase) GetPosts(limit int, offset int) (all_posts []common.Post, err error) {
+	query := fmt.Sprintf("SELECT title, excerpt, id FROM posts LIMIT %d OFFSET %d;", limit, offset)
+	rows, err := db.Connection.Query(query)
 	if err != nil {
 		return make([]common.Post, 0), err
 	}