Welcome to the API!

How to use this API:

• GET /posts/:id : Get a post by ID. Replace ':id' with the ID of the post you want to retrieve.
• POST /posts : Create a new post. The body should be a JSON object with 'title', 'content', and 'author' keys.
• PUT /posts/:id : Update an existing post. Replace ':id' with the ID of the post you want to update. The body should be a JSON object with the 'title', 'content', and 'author' keys you want to update.
• DELETE /posts/:id : Delete a post. Replace ':id' with the ID of the post you want to delete.