The Repeater App creates a repeatable list of key-value pairs in the Contentful web app. Key-value pairs are two pieces of associated information such as:

• Ingredients list (Flour, 500 grams)
• Item variations and amount in stock (T-Shirt, 5 left)
• Statistics (Color variation, 5%)

The Repeater app utilizes the Contentful JSON Field to store a simple Item data stucture:

{
    id: string; // automatically generated by the app
    name: string;
    value: string;
}

Note that the id property is automatically generated and useful for developers to differentiate between different list items even if the labels are the same or similar

An example item in the Contentful response:

{
    "fields": {
        "ingredientsList": [
            {
                "id": "fisgh9s8e-sdfhap832",
                "name": "Flour",
                "value": "500g"
            },
            {
                "id": "asd7f82eiSUHDU-F0sudh4",
                "name": "salt",
                "value": "10g"
            }
        ]
    }
}

Martin's Contentful Reference Matrix Field App is a continuation of this simple Repeater App but uses the Contentful Reference Fields as a data source.

On November 24th, 2020, Stefan and I did a live stream event where we built the prototype for this app as a way to show developers the uses of the App Framework.

Watch the stream

This project was bootstrapped with Create Contentful App.

Before running the app locally, you will need to do 2 things:

• Ensure your Contentful user is admin or developer for the organization.
• Create an AppDefinition in your organization with the following properties:
  • The App URL: http://localhost:3000
  • An entry field location with a type of JSON Object
  • An instance parameter of type short text with the id valueName

If you are using the UI to create the AppDefinition, it should look like this:

Once your app definition is created, running npm start will start a local server on port 3000 (http://localhost:3000).

You must create or modify a content type which has a JSON field in order to see the app inside of the Contentful web app.

Read more and check out the video on how to use the CLI.

Create Contentful App uses Create React App. You can learn more in the Create React App documentation and how to further customize your app.