loopback-component-explorer/index.js

77 lines
2.5 KiB
JavaScript

'use strict';
/*!
* Adds dynamically-updated docs as /explorer
*/
var path = require('path');
var _defaults = require('lodash.defaults');
var extend = require('util')._extend;
var loopback = require('loopback');
var express = requireLoopbackDependency('express');
var swagger = require('./lib/swagger');
var fs = require('fs');
var SWAGGER_UI_ROOT = path.join(__dirname, 'node_modules', 'swagger-ui', 'dist');
var STATIC_ROOT = path.join(__dirname, 'public');
module.exports = explorer;
/**
* Example usage:
*
* var explorer = require('loopback-explorer');
* app.use('/explorer', explorer(app, options));
*/
function explorer(loopbackApplication, options) {
options = _defaults({}, options, {
basePath: loopbackApplication.get('restApiRoot') || '/',
name: 'swagger',
resourcePath: 'resources',
apiInfo: loopbackApplication.get('apiInfo') || {}
});
swagger(loopbackApplication.remotes(), options);
var app = express();
app.disable('x-powered-by');
app.get('/config.json', function(req, res) {
res.send({
url: path.join(options.basePath, options.name, options.resourcePath)
});
});
// Allow specifying a static file root for swagger files. Any files in that folder
// will override those in the swagger-ui distribution. In this way one could e.g.
// make changes to index.html without having to worry about constantly pulling in
// JS updates.
if (options.swaggerDistRoot) {
app.use(loopback.static(options.swaggerDistRoot));
}
// File in node_modules are overridden by a few customizations
app.use(loopback.static(STATIC_ROOT));
// Swagger UI distribution
app.use(loopback.static(SWAGGER_UI_ROOT));
return app;
}
function requireLoopbackDependency(module) {
try {
return require('loopback/node_modules/' + module);
} catch (err) {
if (err.code !== 'MODULE_NOT_FOUND') throw err;
try {
// Dependencies may be installed outside the loopback module,
// e.g. as peer dependencies. Try to load the dependency from there.
return require(module);
} catch (errPeer) {
if (errPeer.code !== 'MODULE_NOT_FOUND') throw errPeer;
// Rethrow the initial error to make it clear that we were trying
// to load a module that should have been installed inside
// "loopback/node_modules". This should minimise end-user's confusion.
// However, such situation should never happen as `require('loopback')`
// would have failed before this function was even called.
throw err;
}
}
}