iOS iPhone app using RESTful API for sending and retreiving data

The iOS app shall rely on a webapp's RESTful API. You will be provided the API documentation. The app is going to have - A login, post login credentials (username & password) and receive a JSON Web Token (JWT). Header Authentication Bearer {Token} - List expenses (GET): request api for the list. An expense has different statuses which should be shown in the list. The request takes a few params to search/filter the result (date from/to, status) - Add expense (POST): Post data and image. Image should be taken with the camera. When image is taken, user can simply crop the image to fit the document only. Quality of image shall be good, but the size should be less than 700 kb. - Edit expense (PUT): POST data with the _method = PUT. The same as add, except it's editing an existing expense. Existing data from the expense should be populated in the input boxes. Same possibility to add cropped image, - View expense (GET): A simple view of an expense with it's attachment. Attachment can be PDF as well. From the list or view of expenses/expense, you can edit and delete a/the expense. Edit and delete can only be done with a specific status. Expense fields: - id (auto) - user_id (auto) - type (select, value 0-5) - receipt_data (datetime) - amount (decimal) - purpose (text) - date_refunded (datetime, readonly, in view) - paid_by_employee (boolean, checkbox) - attachment_file (file, take picture, cropped) - status (integer, auto) - created (datetime, auto) - modified (datetime, auto) Datetime should be posted as '[login to view URL]'. Retrieved datetime is like '1970-01-01T00:00:00+00:00' and should be formatted to '[login to view URL]'. Decimals is written and formatted as 0,00 (decimal comma). Send and retrieve decimals as 0.00 (decimal period). Data is stored in MySql. MySql knowlegde to work with retrieved data is required. A quick sketch/draw of what layout you think will work would be nice to see with the offer. App settings: Choose language. I will do translation from english, with proper information from developer and needed files which I will return. My company will own the app and the code. Username and password can be stored securely "the apple-way".