Alt Texter

This script automatically adds alt tags to all the images (including featured images) on your blog using SceneXplain.

What platforms does it support?

Platform	Post images	Page images	Media images	Product images	Notes
Ghost	✅	Pending	N/A	N/A	Tested, works decently
WordPress	✅	✅	✅	N/A	Converts post content to HTML
WooCommerce	Use WordPress handler	Use WordPress handler	Use Wordpress handler	✅	Experimental
Shopify	✅			✅	Experimental

How does it work?

When you run the script or Docker image it will:

• Download each content item from whatever platform you're using
• Check each image to see if it has alt text:
  • If yes, skip that image
  • If no, create an alt text using SceneXplain and write that to the post data
• Check if the content has new alt texts:
  • If yes, update the content
  • If no, skip update

Instructions

Set API environment variables

Environment variables let you safely define your credentials and settings. No matter which platform you use, you will need:

Environment variable name	Required?	Default value	Notes
PLATFORM	No	ghost	ghost, wordpress, woocommerce or shopify
SCENEX_API_KEY	Yes	None	Generate here

Then, depending on your platform, you will need to set additional variables to define your URL and credientials:

Ghost

Environment variable name	Required?	Default value	Notes
GHOST_BLOG_URL	Yes	None	Must include "http(s)" prefix
GHOST_API_KEY	Yes	None

WordPress

Environment variable name	Required?	Default value	Notes
WORDPRESS_URL	Yes	None	Must include "http(s)" prefix
WORDPRESS_USERNAME	Yes	None
WORDPRESS_PASSWORD	Yes	None

WooCommerce

Environment variable name	Required?	Default value	Notes
WOOCOMMERCE_URL	Yes	None	Must include "http(s)" prefix
WOOCOMMERCE_KEY	Yes	None	Your WooCommerce consumer key
WOOCOMMERCE_SECRET	Yes	None	Your WooCommerce consumer secret

Shopify

Environment variable name	Required?	Default value	Notes
SHOPIFY_SHOP_NAME	Yes	None
SHOPIFY_ACCESS_TOKEN	Yes	None	Your Shopify Admin API access token

Run in Docker

Fill in the environment variables (denoted by angle brackets) and run the code. For each line that begins with -e you'll need to specify each of your environment variables from your platform above. For example, if you use Ghost, you would specify:

docker run -d --name alt-texter \
-e SCENEX_API_KEY=<scenex-api-key> \
-e PLATFORM=ghost \
-e GHOST_API_KEY=<ghost-api-key> \
-e GHOST_BLOG_URL="<ghost-blog-url>" \
jinaai/alt-texter:0.1

Bare metal

1. Clone this repo then enter its directory.
2. Run pip install -r requirements.txt to install requirements.
3. Fill in the environment variables (denoted by angle brackets) and run the code.

env GHOST_API_KEY=<ghost-api-key> \
SCENEX_API_KEY=<scenex-api-key> \
GHOST_BLOG_URL="<ghost-blog-url>" \
python app.py

FAQ

Why doesn't the WooCommerce handler update my posts and pages?

WooCommerce is a WordPress plugin, so you should use the WordPress handler to update the posts and pages on your site.

Do you plan any proper plugins for the platforms?

I have no expertise in that area. If someone wants to lend a hand, drop an issue and let's chat!