Programmatic usage:

// from forked repo:
const typesGenerate = require('./sources/main');
// or
const typesGenerate = require('graphql-types-generator');

async function main() {
   await typesGenerate({
      filename: './examples/mutations.js',
      // ...other options
   });	
}

main();

Possible options:

• filename: string - path to js file with graphql queries wrapped to tagged template gql (possible to use glob pattern) (required)
• files?: string[] - as alternative filename option allowing multiple source files passing at same time
• declarateSource?: Array<string> - list of files for generating declaration (*.d.ts) files (may match with files option. useful for covering query argument types).
• declTemplate?: string - file name of template using for *.d.ts files generation (look up examples directory)
• target?: string - target file name
• attachTypeName?: boolean - attach __typename field for each query type
• matchTypeNames?: boolean - attach 'QueryTypes' type
• useServerTypes?: boolean - using server types for generation
• screentypes?: boolean - set human understandable type names for specific graphql types (JSONstring, Base64String and DateString by default)
• rules?: object - naming rules to generate types like {number: ['count', 'amount']} (applies if the server type is not found or disabled)
• overRules?: object - rules over server types (override server types!). For example: {cursor: 'Base64String'}
• separateFileForArgumentsTypes?: boolean - separate argument types and queries result types
• verbose?: boolean - includes additional logs output to the console
• watch?: boolean | number - watch mode (number by default is the delay between flogging the file (by default is 250 ms))