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server.js
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server.js
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/**
* Module dependencies.
*/
var debug = require('debug')('glint-adapter-ajax');
var express = require('express');
var bodyParser = require('body-parser');
var bj = bodyParser.json({limit: '1gb'});
var path = require('path');
var merge = require('utils-merge');
var jsonify = require('json-fn');
var c = require('./config');
var cs = require('./config-server');
/**
* Module variables.
*/
/**
* Initialize a new `AjaxAdapter` element.
*
* Caution when using options: options for the server side adapter go into the `server` field, those for the (ajax) part, must be provided via the `browser` field.
*/
function AjaxAdapter(options) {
if (!(this instanceof AjaxAdapter)) return new AjaxAdapter(options);
merge(this, c);
this.server = {};
merge(this.server, cs);
merge(this, options);
this.adapter = this.server.adapter(this.server);
this.adapter.routes = this._initRoutes();
this.adapter.provider = this.server.adapter.provider;
this.adapter.ajax = this;
return this.adapter;
}
/**
* routes for API functions.
*/
AjaxAdapter.prototype.api = AjaxAdapter.api = 'adapter-provider';
AjaxAdapter.prototype.provider = AjaxAdapter.provider = 'ajax';
/**
* @description: If you get something like this Error: POST http://... 413 (Request Entity Too Large) , make sure you have got the body-parser size set correctly.
*
* To Avoid 413 Errors with big json: Error: POST http://localhost:8080/ajax/:db/:type/:id 413 (Request Entity Too Large),
* you can use the following line:
*
* router.use(bodyParser.json({limit: '1gb'}));
*
*/
AjaxAdapter.prototype._initRoutes = function() {
var router = this.router = express.Router();
var adapter = this.adapter;
var path = this.path;
// find
router.post(path + '/:db/:type/' + this.find, bj, function(req, res) {
var db = req.params.db;
var type = req.params.type;
var queryString = req.body;
var query = jsonify.parse(queryString);
debug('AjaxAdapter find', db, type, query);
adapter.find(db, type, query, function(err, data) {
if (err) return res.status(404).json({error: err});
res.send(data);
});
});
// load
router.get(path + '/:db/:type/:id', function(req, res) {
var db = req.params.db;
var type = req.params.type;
var id = req.params.id;
debug('AjaxAdapter load', db, type, id);
adapter.load(db, type, id, function(err, data) {
if (err) return res.status(404).json({error: err});
res.send(data);
});
});
// save
router.post(path + '/:db/:type/:id', bj, function(req, res) {
var db = req.params.db;
var type = req.params.type;
var id = req.params.id;
var content = req.body;
debug('AjaxAdapter save', db, type, id, content);
adapter.save(db, type, id, content, function(err, data) {
if (err) return res.status(404).json({error: err});
res.send(data);
});
});
// delete
router.delete(path + '/:db/:type/:id', function(req, res) {
var db = req.params.db;
var type = req.params.type;
var id = req.params.id;
debug('AjaxAdapter delete', db, type, id);
adapter.delete(db, type, id, function(err, success) {
if (err) return res.status(404).json({error: err});
res.send(success);
});
});
return router;
};
/**
* Helper functions.
*/
AjaxAdapter.prototype.getPath = function(db, type, id) {
debug('ajax getPath', db, type, id);
db = db || '';
var p = [this.address, this.path, db, type, id];
p = p.map(function(val) {
return val.toLowerCase();
});
p = p.join('/');
return p;
};
/**
* Expose AjaxAdapter.
*/
exports = module.exports = AjaxAdapter;
/**
* usage with express:
* use('*', AjaxAdapter().routes)
*/