swagger webpack example.js

/* eslint-disable */
const ejs = require('ejs'),
    path = require('path'),
    request = require('request'),
    fs = require('fs'),
    resolvePath = p => path.resolve(__dirname, p);

    let specCompiled = false;

class CodegenPlugin {
    constructor(options) {
        this.options = options;
    }

    fetchAPI(alias) {

        const apiHost = this.options.APP_CONF.API_BGLN_HOST + "swagger/json/v4/";
        console.log('Start generate spec from:', apiHost);
        console.time('generate-api');
        return new Promise((resolve, reject) => {
            if(specCompiled === true) {
                resolve();
            } else {
                request({ url: apiHost, json: true},
                    (err, res, body) => {
                        if (!err && res.statusCode === 200) {
                            console.log('Swagger api spec received \r', Object.keys(body.paths)); // Print the json responsex

                            //Generate axios instance API methods
                            ejs.renderFile(resolvePath('./templates/api-instance.ejs'), {
                                paths: body.paths,
                            }, {}, function(err, str) {
                                if(err) {
 throw new Error(err);
}
                                //Save for server
                                fs.writeFileSync(alias['@server'] + '/routes/bgln/swagger.js', str);
                                console.log(alias['@server'] + '/routes/bgln/swagger.js', '- saved');

                                //Save for client
                                fs.writeFileSync(alias['@client'] + '/api/biglion/swagger.js', str);
                                console.log(alias['@client'] + '/api/biglion/swagger.js', '- saved');
                                console.timeEnd('generate-api');
                                specCompiled = true;
                                resolve();
                            });
                            console.time('route-api');
                            //Generate router instance API methods
                            //@TODO доделать когда бекенд реализует спецификацию.
                            // ejs.renderFile(resolvePath('./templates/router-instance.ejs'), {
                            //     paths: body.paths
                            // }, {}, function(err, str) {
                            //     if(err) throw new Error(err);
                            //     fs.writeFileSync(resolvePath("./router.js"), str);
                            //     console.timeEnd('route-api');
                            //     resolve(true)
                            // });

                        } else {
                            reject('Swagger host unavailable ', apiHost, 'Build spec api failed');
                        }
                    }
                );
            }
        });
    }

    apply(compiler) {
        compiler.hooks.beforeRun.tapPromise(
            'CodegenPlugin',
            compile => this.fetchAPI(compiler.options.resolve.alias),
            err => console.error(err));
    }
}

module.exports = CodegenPlugin;