How to concat npm_package_config variable inside the single quotes

Question

In package.json I have following configuration:

  "scripts": {
    ...
    "api:update": "curl -k -H 'Cookie: JSESSIONID=$npm_package_config_session'  -o api-docs.json https://localhost:8445/v2/api-docs",
    ...
  }

Variable is defined using following command: npm config set project:session XXXX

When npm config get project:session is executed I get proper value.

Any suggestion how to resolve $npm_package_config_session inside the single quotes?