I have created a database and I am trying to POST a "book" through Postman. The book should have a bunch of attributes such as title, author, rating, id, description etc. The database seems to work and I can, for example, get information about the logged in user through Postman.

When I try to POST a book I get the error as the headline; AttributeError: 'list' object has no attribute 'get' but I can't understand what 'list' the error is referring to..? Here is the code for the route;

@app.route('/books', methods=['GET', 'POST'])
def books():
    if Book.query.all() == None:
        abort(404)

    if request.method == 'GET':
        # Handle GET-request
        books = []
        for x in Book.query.all():
            books.append(Book.serialize(x))
        return jsonify(books)

    elif request.method == 'POST':
        input_data = request.get_json(force=True)

        if not input_data.get('title', False):
            abort(400)
        if not input_data.get('author', False):
            abort(400)
        if not input_data.get('genre', False):
            abort(400)
        if not input_data.get('publish_year', False):
            abort(400)
        if not input_data.get('image', False):
            abort(400)
        if not input_data.get('current_book', False):
            abort(400)

        title_input = input_data.get('title')
        author_input = input_data.get('author')
        genre_input = input_data.get('genre')
        short_description_input = input_data.get('short_description')
        long_description_input = input_data.get('long_description')
        publish_year_input = input_data.get('publish_year')
        image_input = input_data.get('image')
        rating_input = input_data.get('rating')
        current_book_input = input_data.get('current_book')
        input_book = Book(title=title_input, author=author_input,
                          genre=genre_input, short_description=short_description_input,
                          long_description=long_description_input,
                          publish_year=publish_year_input, image=image_input,
                          rating=rating_input, current_book=current_book_input)
        db.session.add(input_book)
        db.session.commit()
        return jsonify(Book.serialize(input_book))

and the postman POST request

[
 { 
        "title":"Here goes the title",
        "author":"Best author",
        "current_book":true,
        "genre": "Classic",
        "id": 1,
        "image": "pictures/bookpicture1.png",
        "long_description": "reaaaally good book)",
        "publish year": 1803,
        "rating": 3.5,
        "short_description": "read it!!"
    }
 ]