Adding single transformed cloudinary image in Gatsby markdown post

[kim-lindgren]

I am building a Gatsby site and uploading images to Cloudinary. What I have done so far is:

• Installed gatsby-source-cloudinary and gatsby-transformer-cloudinary.
• Following this tutorial I have added keys and other variables in a .env file and made some changes to gatsby-config.js. All files in /images now upload automatically to Cloudinary.
• I can, if I want to, copy CDN:s from Cloudinary images and use them in pages or markdown posts. But as far as I understand, this does not transform the image, which is half the point.

What I don't understand is the following:

1. How can I fetch a single image with GraphQL? There is an example here but it doesn't work because my API structure in GraphiQL is different - I don't have "childCloudinaryAsset" inside "file" but next to it. Also, there is an example here that shows how you can download multiple files, but I don't have "CloudinaryImage" with "CloudinaryMedia" inside, I just have "cloudinaryAsset". This "cloudinaryAsset" does not have a "public_id" or "secure_url" inside it.
2. What I can do is to query allCloudinaryAsset -> edges -> node -> fluid -> src, this gives me an array of all uploaded image url:s. But how do I query one of these url:s? "src" does not have any options like "eq" or "in".
3. Finally, if I succeed in fetching an image, how do I include it in a markdown post - in a transformed state? I don't want it as a featured image, I want to be able to include it anywhere in the post.

These are a lot of questions, but I would appreciate it if someone would help out at least with points 1 and 2.