API/Storing-Files.md

@@ -36,11 +36,10 @@ Currently, three types of "file" attributes are supported: file, picture, video.
 
 In the universe, an attribute which needs to be handled by uploading a file has
 
-```
+```json
 "baseDataType": "file"
 ```
 
-
 https://git.ironapi.com/ironapi/api/-/wikis/API/Form-Input-Types
 
 ## Upload
@@ -49,8 +48,9 @@ To set (upload) a file, it needs to be packed into the json request of any trans
 
 The attribute must be set to the original file name and the base64 encoded file data, seperated by a semi-colon. In the following example "attachment" is the name of the attribute and a file called "test.txt" is being uploaded:
 
-```
-#/data/helpdesk/ticket/transitions/create
+`/data/helpdesk/ticket/transitions/create`
+
+```json
 {
     "category" : 1, 
     "subject" : "test", 
@@ -60,7 +60,7 @@ The attribute must be set to the original file name and the base64 encoded file
 
 As seen in the reply, the attribute will be replaced with meta data needed to store and retrieve the file.
 
-```
+```json
   "data": {
     "modification_time": "2019-06-05T12:00:58.580746",
     "cost_bearing_department": null,
@@ -90,13 +90,25 @@ As stated in the universe, the file itself can be downloaded via a seperate url:
  
 Permission to do so will be the same as a permission to view the instance.
 
+## Update
+
+To upload a different file, just update the attribute with a new file:
+
+`POST /data/helpdesk/ticket/3/transitions/edit`
+
+```json
+{
+  "attachment" : "test1.txt;Ymxh"
+}
+```
+
 ## Delete
 
 To delete the file, just set the attribute to an empty value:
 
 `POST /data/helpdesk/ticket/3/transitions/edit`
 
-```
+```json
 {
   "attachment" : null
 }