openapi-alchemist/dist/index.js

Transform OpenAPI 3 to Swagger 2 with alchemical precision

"use strict";
const types_1 = require("./types");
const openapi_3_1 = require("./lib/formats/openapi_3");
const swagger_2_1 = require("./lib/formats/swagger_2");
const Formats = {};
Formats['swagger_2'] = swagger_2_1.Swagger2;
Formats['openapi_3'] = openapi_3_1.OpenApi3;
global.Formats = Formats;
const Converter = {
    Formats,
    BaseFormat: types_1.BaseFormat,
    ResourceReaders: types_1.Util.resourceReaders,
    getSpec(source, format, callback) {
        if (!Formats.hasOwnProperty(format)) {
            throw new Error('Unknown format ' + format + ', you might have forgotten installing an optional dependency');
        }
        const FormatClass = Formats[format];
        const spec = new FormatClass();
        const result = spec.resolveResources(source).then(() => spec);
        if (callback) {
            result.then(result => callback(null, result)).catch(err => callback(err, null));
        }
        return result;
    },
    getFormatName(name, version) {
        let result;
        Object.entries(Formats).forEach(([formatName, format]) => {
            const formatPrototype = format.prototype;
            if (formatPrototype.formatName === name && formatPrototype.supportedVersions.indexOf(version) !== -1) {
                result = formatName;
            }
        });
        return result;
    },
    convert(options, callback) {
        const result = Converter.getSpec(options.source, options.from)
            .then((fromSpec) => fromSpec.convertTo(options.to, options.passthrough));
        if (callback) {
            result.then(result => callback(null, result)).catch(err => callback(err, null));
        }
        return result;
    }
};
module.exports = Converter;