Building a journaling app

Throughout the following chapters of this book, we'll build a proof-of-concept application using Svelte 3 – a journaling app:

Figure 1.2 – Screenshot of the completed app

App features

This app features three main views:

• The starter view is a list of all the journal entries for a given day; a date picker lets users select the day.
• Users can add new content using a form that lets them type it in freely.
• Content is presented to users when they select a journal entry, rendering the input text as Markdown.

The app requires authentication before users can read or write any journal entries, and it uses OAuth 2.0/OpenID Connect to achieve that.

Data is stored inside a back-end service, which runs separately from our application (remember that we're building a JAMstack app!), and our front-end communicates with the back-end service via RESTful APIs.

While this proof-of-concept app has...