diff --git a/1.2-BACKEND-APIs.md b/1.2-BACKEND-APIs.md
new file mode 100644
index 0000000..72af4e2
--- /dev/null
+++ b/1.2-BACKEND-APIs.md
@@ -0,0 +1,48 @@
+# BACKEND-APIs
+
+---
+
+> [!TIP]
+> `-k` in CURL allows for self-signed certificates.
+
+## Register
+
+```shell
+curl -k -X POST https://localhost:8080/api/auth/register   -H "Content-Type: application/json"   -d '{
+  "email": "testHDFS@example.com",
+  "password": "Pass@123",
+  "username": "testHDFS3",
+  "firstname": "Test",
+  "lastname": "HDFS",
+  "fullname": "Test HDFS"
+}'
+```
+
+## Login
+
+```shell
+curl -k -X POST https://localhost:8080/api/auth/login \
+  -H "Content-Type: application/json" \
+  -d '{
+    "email": "testHDFS@example.com",
+    "password": "Pass@123"
+  }'
+```
+
+## File upload
+
+```shell
+curl -k -X POST https://localhost:8080/api/files/upload \
+  -H "Authorization: Bearer $JWT" \
+  -F "file=@/home/overnion/Desktop/Typing Speed/15-102-98.mp4"
+```
+
+## File download
+
+```shell
+curl -k -X GET "https://localhost:8080/api/files/download/15-102-98.mp4?password=Pass@123" \
+  -H "Authorization: Bearer $JWT" \
+  --output 15-102-98.mp4
+```
+
+---
diff --git a/Home.md b/Home.md
index 5f2110c..9e82a64 100644
--- a/Home.md
+++ b/Home.md
@@ -5,3 +5,4 @@ Welcome to the Wiki.
 ---
 
 ## [1.1-TODO](1.1-TODO.md)
+## [1.2-BACKEND-APIs](1.2-BACKEND-APIs.md)