How to download a schema.json file from Hasura

[maxweld]

Hi. I am trying to download a schema.json file from my graphql endpoint set up on Hasura after following the backend tutorial. I need this to generate the Types for my corresponding Typescript frontend application.

I am running the following command from the client:

apollo service:download --header='x-hasura-admin-key: <my key>' --endpoint=https://sample-backend-for-hasura-tutorial.hasura.app/v1/graphql schema.json

I am getting the following error:

  √ Loading Apollo Project
  × Saving schema to schema.json
    → TypeError:  is not a legal HTTP header name
    Error: TypeError:  is not a legal HTTP header name

Can you suggest what is wrong or how to download the schema?
Thanks in advance

[maxweld]

All Sorted.

It needed double quotes, not single quotes.

apollo service:download --header="x-hasura-admin-key: " --endpoint=https://sample-backend-for-hasura-tutorial.hasura.app/v1/graphql schema.json

You will need to escape them if using a script in your package.json file. (")