the-example-app-nodejs/README.md

The node.js example app

The node.js example app teaches the very basics of how to work with Contentful:

• consume content from the Contentful Delivery and Preview APIs
• model content
• edit content through the Contentful web app

The app demonstrates how decoupling content from its presentation enables greater flexibility and facilitates shipping higher quality software more quickly.

You can see a hosted version of The node.js example app on Heroku.

What is Contentful?

Contentful is content infrastructure for web applications, mobile apps and connected devices. It allows you to create, edit and manage content in the cloud and publish it anywhere via powerful APIs. Contentful offers tools for editorial teams and enabling cooperation between organizations.

Requirements

• Node 8
• Git
• Contentful CLI (only for write access)

Without any changes, this app is connected to a Contentful space with read-only access. To experience the full end-to-end Contentful experience, you need to connect the app to a Contentful space with read and write access. This enables you to see how content editing in the Contentful web app works and how content changes propagate to this app.

Common setup

You can clone the space for this example app to your own Contentful account by using our CLI tool.

contentful space seed -s '<SPACE_ID>' -t the-example-app

If you do not have the Contentful CLI installed you can find instructions on installation and usage here. For more information on the content model check out this repo.

Once you’ve created a space, you can change the credentials in the variables.env. If you don’t feel like changing code immediately, you can also inject credentials via url parameters like so:

Clone the repo and install the dependencies.

git clone https://github.com/contentful/the-example-app.nodejs.git

npm install

Steps for read-only access

To start the express server, run the following

npm run start:dev

Open http://localhost:3000 and take a look around.

Steps for read and write access (recommended)

Step 1: Install the Contentful CLI

Step 2: Login to Contentful through the CLI. It will help you to create a free account if you don't have one already.

contentful login

Step 3: Create a new space

contentful space create --name 'My space for the example app'

Step 4: Seed the new space with the content model. Replace the SPACE_ID with the id returned from the create command executed in step 3

contentful space seed -s '<SPACE_ID>' -t the-example-app

Step 5: Head to the Contentful web app's API section and grab SPACE_ID, DELIVERY_ACCESS_TOKEN, PREVIEW_ACCESS_TOKEN.

Step 6: Open variables.env and inject your credentials so it looks like this

NODE_ENV=development
CONTENTFUL_SPACE_ID=<SPACE_ID>
CONTENTFUL_DELIVERY_TOKEN=<DELIVERY_ACCESS_TOKEN>
CONTENTFUL_PREVIEW_TOKEN=<PREVIEW_ACCESS_TOKEN>
PORT=3000

Step 7: To start the express server, run the following

npm run start:dev

Final Step:

Open http://localhost:3000?enable_editorial_features and take a look around. This URL flag adds an “Edit” button in the app on every editable piece of content which will take you back to Contentful web app where you can make changes. It also adds “Draft” and “Pending Changes” status indicators to all content if relevant.

Deploy to Heroku

You can also deploy this app to Heroku:

Use Docker

You can also run this app as a Docker container:

Step 1: Clone the repo

git clone https://github.com/contentful/the-example-app.nodejs.git

Step 2: Build the Docker image

docker build -t the-example-app.nodejs .

Step 3: Run the Docker container locally:

docker run -p 3000:3000 -d the-example-app.nodejs

If you created your own Contentful space, you can use it by overriding the following environment variables:

docker run -p 3000:3000 \
  -e CONTENTFUL_SPACE_ID=<SPACE_ID> \
  -e CONTENTFUL_DELIVERY_TOKEN=<DELIVERY_ACCESS_TOKEN> \
  -e CONTENTFUL_PREVIEW_TOKEN=<PREVIEW_ACCESS_TOKEN> \
  -d the-example-app.nodejs