How to filter content using dynamic slug

I am trying to fetch the content from the model using graphql (Next JS). I want to filter results by slug. In the playground I was able to do it but if I pass it dynamically in the code it throws error,

There was an error processing your request
I tried in postman as well but it’s showing the same error.

Reproducible code example

curl --location 'https://cdn.builder.io/api/v3/graphql/{api-key}' \
--header 'Content-Type: application/json' \
--data '{
  "query": "query GetAizleSiteArticles($slug: String!) { aizleSiteArticles(query: { data: { slug: $slug } }) { data { id slug title } } }",
  "variables": {
    "slug": "my-slug"
  }
}'

Help will be much appreciated xx

Hi!

Could you share your API key? It’s a read-only key.

Thanks!