backend/node: PUT and DELETE exercises

courses/backend/node/week2/session-materials/08-put-endpoint.md

@@ -1,3 +1,46 @@
 # PUT endpoint
 
-TODO
+## `PUT /api/snippets/:id`
+
+Let's start with a simplified version of the `PUT /api/snippets/:id` route. First we add the PUT route to `api/snippets.js`:
+
+```js
+// ...
+
+// PUT /api/snippets/:id
+router.put("/:id", async (request, response) => {
+  // TODO
+});
+
+// ...
+```
+
+To be able to update a row in the `snippets` table, we need to have an existing snippet. Create a snippet first and note what the snippet ID is.
+
+The PUT request we want to make will look something like this:
+
+```text
+PUT /api/snippets/1
+{
+    "title": "Updated snippet title",
+    "contents": "#hello world",
+    "is_private": true
+}
+```
+
+### Exercise: Implement the PUT endpoint
+
+When we now make a request like:
+
+```text
+PUT /api/snippets/1
+{
+    "title": "Updated snippet title",
+    "contents": "#hello world",
+    "is_private": true
+}
+```
+
+you should update the existing row in the `snippets` table with the data from the request body, where the snippet ID matches the `:id` parameter in the URL.
+
+When updating a snippet we also need to specify a `user_id`. For now, you can just pass in the `user_id` in the request body (alongside the other snippet data).

courses/backend/node/week2/session-materials/09-delete-endpoint.md

@@ -1,3 +1,34 @@
 # DELETE endpoint
 
-TODO
+## `DELETE /api/snippets/:id`
+
+Let's start with a simplified version of the `DELETE /api/snippets/:id` route. First we add the DELETE route to `api/snippets.js`:
+
+```js
+// ...
+
+// DELETE /api/snippets/:id
+router.delete("/:id", async (request, response) => {
+  // TODO
+});
+
+// ...
+```
+
+To be able to delete a row from the `snippets` table, we need to have an existing snippet. Create a snippet first and note what the snippet ID is.
+
+The DELETE request we want to make will look something like this:
+
+```text
+DELETE /api/snippets/1
+```
+
+### Exercise: Implement the DELETE endpoint
+
+When we now make a request like:
+
+```text
+DELETE /api/snippets/1
+```
+
+you should delete the row from the `snippets` table where the snippet ID matches the `:id` parameter in the URL.