openapi-minifier/dist/validator.js

A CLI tool by Treblle tp minify OpenAPI V3 Specs by removing redundant information not relevant to AI Agents and LLMs.

import SwaggerParser from '@apidevtools/swagger-parser';
import yaml from 'js-yaml';
export async function validateOpenAPI(content, format) {
    try {
        let spec;
        if (format === 'yaml') {
            spec = yaml.load(content);
        }
        else {
            spec = JSON.parse(content);
        }
        await SwaggerParser.validate(spec);
        if (typeof spec === 'object' && spec !== null && 'openapi' in spec) {
            const version = spec.openapi;
            if (!version || !version.startsWith('3.')) {
                throw new Error(`Unsupported OpenAPI version: ${version}. Only OpenAPI v3.x is supported.`);
            }
        }
        else {
            throw new Error('Invalid OpenAPI specification: missing "openapi" field');
        }
    }
    catch (error) {
        if (error instanceof Error) {
            throw new Error(`OpenAPI validation failed: ${error.message}`);
        }
        throw new Error('OpenAPI validation failed: Unknown error');
    }
}
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