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/*******************************************************************************
* Copyright 2013 ClearBlade, Inc
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Any redistribution of this program in any form must include this copyright
*******************************************************************************/
if (!window.console) {
window.console = window.console || {};
window.console.log = window.console.log || function() {};
}
(function(window, undefined) {
"use strict";
var ClearBlade, $cb, currentUser;
/**
* This is the base module for the ClearBlade Platform API
* @namespace ClearBlade
* @example <caption>Initialize ClearBladeAPI</caption>
* initOptions = {systemKey: 'asdfknafikjasd3853n34kj2vc', systemSecret: 'SHHG245F6GH7SDFG823HGSDFG9'};
* var cb = new ClearBlade();
* cb.init(initOptions);
*
*/
if (typeof exports != "undefined") {
// window = exports;
}
ClearBlade = $cb = window.$cb = window.ClearBlade =
window.ClearBlade || function() {};
ClearBlade.MESSAGING_QOS_AT_MOST_ONCE = 0;
ClearBlade.MESSAGING_QOS_AT_LEAST_ONCE = 1;
ClearBlade.MESSAGING_QOS_EXACTLY_ONCE = 2;
/**
* This method initializes the ClearBlade module with the values needed to connect to the platform
* @method ClearBlade.init
* @param {Object} options This value contains the config object for initializing the ClearBlade module. A number of reasonable defaults are set for the option if none are set.
*<p>
*The connect options and their defaults are:
* <p>{String} [systemKey] This is the app key that will identify your app in order to connect to the Platform</p>
* <p>{String} [systemSecret] This is the app secret that will be used in combination with the systemKey to authenticate your app</p>
* <p>{String} [URI] This is the URI used to identify where the Platform is located. Default is https://platform.clearblade.com</p>
* <p>{String} [messagingURI] This is the URI used to identify where the Messaging server is located. Default is platform.clearblade.com</p>
n * <p>{Number} [messagingPort] This is the default port used when connecting to the messaging server. Default is 8904</p>
* <p>{Boolean} [logging] This is the property that tells the API whether or not the API will log to the console. This should be left `false` in production. Default is false</p>
* <p>{Number} [callTimeout] This is the amount of time that the API will use to determine a timeout. Default is 30 seconds</p>
* <p>{Boolean} [mqttAuth] Setting this to true and providing an email and password will use mqtt websockets to authenticate, rather than http.</p>
* <p>{String} [messagingAuthPort] is the port that the messaging auth websocket server is listening on.</p>
*</p>
*/
ClearBlade.prototype.init = function(options) {
var _this = this;
//check for undefined/null then check if they are the correct types for required params
if (!options || typeof options !== "object")
throw new Error("Options must be an object or it is undefined");
if (!options.systemKey || typeof options.systemKey !== "string")
throw new Error("systemKey must be defined/a string");
if (!options.systemSecret || typeof options.systemSecret !== "string")
throw new Error("systemSecret must be defined/a string");
//check for optional params.
if (options.logging && typeof options.logging !== "boolean")
throw new Error("logging must be a true boolean if present");
if (options.callback && typeof options.callback !== "function") {
throw new Error("callback must be a function");
}
if (options.email && typeof options.email !== "string") {
throw new Error("email must be a string");
}
if (options.password && typeof options.password !== "string") {
throw new Error("password must be a string");
}
if (options.registerUser && typeof options.registerUser !== "boolean") {
throw new Error("registerUser must be a true boolean if present");
}
if (
options.useUser &&
(!options.useUser.email || !options.useUser.authToken)
) {
throw new Error(
"useUser must contain both an email and an authToken " +
'{"email":email,"authToken":authToken}'
);
}
if (options.email && !options.password) {
throw new Error("Must provide a password for email");
}
if (options.password && !options.email) {
throw new Error("Must provide a email for password");
}
if (options.registerUser && !options.email) {
throw new Error("Cannot register anonymous user. Must provide an email");
}
if (
options.useUser &&
(options.email || options.password || options.registerUser)
) {
throw new Error(
"Cannot authenticate or register a new user when useUser is set"
);
}
// store keys
/**
* This is the app key that will identify your app in order to connect to the Platform
* @property systemKey
* @type String
*/
ClearBlade.prototype.systemKey = options.systemKey;
this.systemKey = options.systemKey;
/**
* This is the app secret that will be used in combination with the systemKey to authenticate your app
* @property systemSecret
* @type String
*/
ClearBlade.prototype.systemSecret = options.systemSecret;
this.systemSecret = options.systemSecret;
/**
* This is the master secret that is used during development to test many apps at a time
* This is not currently not in use
* @property masterSecret
* @type String
*/
ClearBlade.prototype.masterSecret = options.masterSecret;
this.masterSecret = options.masterSecret || null;
/**
* This is the URI used to identify where the Platform is located
* @property URI
* @type String
*/
ClearBlade.prototype.URI = options.URI;
this.URI = options.URI || "https://platform.clearblade.com";
/**
* This is the URI used to identify where the Messaging server is located
* @property messagingURI
* @type String
*/
ClearBlade.prototype.messagingURI = options.messagingURI;
this.messagingURI = options.messagingURI || "platform.clearblade.com";
/**
* This is the default port used when connecting to the messaging server
* @prpopert messagingPort
* @type Number
*/
ClearBlade.prototype.messagingPort = options.messagingPort;
this.messagingPort = options.messagingPort || 8904;
/**
* This is the property that tells the API whether or not the API will log to the console
* This should be left `false` in production
* @property logging
* @type Boolean
*/
ClearBlade.prototype.logging = options.logging;
this.logging = options.logging || false;
ClearBlade.prototype.defaultQoS = options.defaultQoS;
this.defaultQoS = options.defaultQoS || 0;
/**
* This is the amount of time that the API will use to determine a timeout
* @property _callTimeout=30000
* @type Number
* @private
*/
ClearBlade.prototype._callTimeout = options.callTimeout;
this._callTimeout = options.callTimeout || 30000; //default to 30 seconds
/**
* This property tells us which port to use for websocket mqtt auth.
* @property messagingAuthPort
* @type Number
*/
this.messagingAuthPort = options.messagingAuthPort || 8907;
this.user = {};
if (options.useUser) {
_this.setUser(options.useUser.email, options.useUser.authToken);
} else if (options.registerUser) {
this.registerUser(options.email, options.password, function(
err,
response
) {
if (err) {
execute(err, response, options.callback);
} else {
_this.loginUser(options.email, options.password, function(err, user) {
execute(err, user, options.callback);
});
}
});
} else if (options.email) {
if (options.mqttAuth) {
this.loginUserMqtt(options.email, options.password, function(
err,
user
) {
execute(err, user, options.callback);
});
} else {
this.loginUser(options.email, options.password, function(err, user) {
execute(err, user, options.callback);
});
}
} else {
this.loginAnon(function(err, user) {
execute(err, user, options.callback);
});
}
};
var _validateEmailPassword = function(email, password) {
if (email == null || email == undefined || typeof email != "string") {
throw new Error("Email must be given and must be a string");
}
if (
password == null ||
password == undefined ||
typeof password != "string"
) {
throw new Error("Password must be given and must be a string");
}
};
/**
* Used when assuming the role of a user to make subsequent requests
* @method ClearBlade.setUser
* @param email {String} the email of the user
* @param authToken {String} the authToken for the user
*/
ClearBlade.prototype.setUser = function(email, authToken) {
this.user.email = email;
this.user.authToken = authToken;
ClearBlade.prototype.user = this.user;
};
/**
* Method to register a user with the ClearBlade Platform
* @method ClearBlade.registerUser
* @param email {String} the users email
* @param password {String} the password for the user
* @param callback {function} returns a Boolean error value and a response as parameters
* @example <caption> Register User </caption>
* cb.registerUser("[email protected]", "qwerty", function(err, body) {
* if(err) {
* //handle error
* } else {
* console.log(body);
* }
* });
*/
ClearBlade.prototype.registerUser = function(email, password, callback) {
_validateEmailPassword(email, password);
ClearBlade.request(
{
method: "POST",
endpoint: "api/v/1/user/reg",
useUser: true,
user: this.user,
body: { email: email, password: password },
authToken: this.user.authToken,
systemKey: this.systemKey,
systemSecret: this.systemSecret,
timeout: this._callTimeout,
URI: this.URI
},
function(err, response) {
if (err) {
execute(true, response, callback);
} else {
this.setUser(email, response.user_token);
execute(false, this.user, callback);
}
}.bind(this)
);
};
/**
* Method to check if the current user has an active server session
* @method ClearBlade.isCurrentUserAuthenticated
* @param {Function} callback
* @example
* cb.isCurrentUserAuthenticated(function(err, body) {
* if(err) {
* //handle error
* } else {
* //check authentication boolean
* }
* })
*/
ClearBlade.prototype.isCurrentUserAuthenticated = function(callback) {
ClearBlade.request(
{
method: "POST",
endpoint: "api/v/1/user/checkauth",
systemKey: this.systemKey,
systemSecret: this.systemSecret,
timeout: this._callTimeout,
user: this.user,
URI: this.URI
},
function(err, response) {
if (err) {
execute(true, response, callback);
} else {
execute(false, response.is_authenticated, callback);
}
}
);
};
/**
* Method to end the server session for the current user
* @method ClearBlade.logoutUser
* @param {Function} callback
* @example
* cb.logoutUser(function(err, body) {
* if(err) {
* //handle error
* } else {
* //do post logout stuff
* }
* })
*/
ClearBlade.prototype.logoutUser = function(callback) {
ClearBlade.request(
{
method: "POST",
endpoint: "api/v/1/user/logout",
systemKey: this.systemKey,
systemSecret: this.systemSecret,
timeout: this._callTimeout,
user: this.user,
URI: this.URI
},
function(err, response) {
if (err) {
execute(true, response, callback);
} else {
execute(false, "User Logged out", callback);
}
}
);
};
/**
* Method to create an anonymous session with the ClearBlade Platform
* @method ClearBlade.loginAnon
* @param {Function} callback
* @example
* cb.loginAnon(function(err, body) {
* if(err) {
* //handle error
* } else {
* //do post login stuff
* }
* })
*/
ClearBlade.prototype.loginAnon = function(callback) {
var _this = this;
ClearBlade.request(
{
method: "POST",
useUser: false,
endpoint: "api/v/1/user/anon",
systemKey: this.systemKey,
systemSecret: this.systemSecret,
timeout: this._callTimeout,
URI: this.URI
},
function(err, response) {
if (err) {
execute(true, response, callback);
} else {
_this.setUser(null, response.user_token);
execute(false, _this.user, callback);
}
}
);
};
/**
* Method to create an authenticated session with the ClearBlade Platform
* @method
* @param {String} email
* @param {String} password
* @param {Function} callback
* @example
* cb.loginUser("[email protected]", "qwerty", function(err, body) {
* if(err) {
* //handle error
* } else {
* //do post login stuff
* }
* })
*/
ClearBlade.prototype.loginUser = function(email, password, callback) {
var _this = this;
_validateEmailPassword(email, password);
ClearBlade.request(
{
method: "POST",
useUser: false,
endpoint: "api/v/1/user/auth",
systemKey: this.systemKey,
systemSecret: this.systemSecret,
URI: this.URI,
timeout: this._callTimeout,
body: { email: email, password: password }
},
function(err, response) {
if (err) {
execute(true, response, callback);
} else {
_this.setUser(email, response.user_token);
execute(false, _this.user, callback);
}
}
);
};
/**
* Method to log user or developer in via MQTT over websockets
* @method ClearBlade.loginUserMqtt
* @param {String} email
* @param {String} password
* @param {Function} callback
* @example
* cb.loginUserMqtt("[email protected]","secret_password", function(err, body) {
* if(err) {
* //handle error
* } else {
* //do post login stuff
* }
* })
*/
ClearBlade.prototype.loginUserMqtt = function(email, password, callback) {
var _this = this;
_validateEmailPassword(email, password);
var clientid = email + ":" + password;
var client = new Paho.MQTT.Client(
_this.messagingURI,
_this.messagingAuthPort,
"/mqtt_auth",
clientid
);
var ourTopic = _this.systemKey + "/" + email;
//helper
var getString = function(msg) {
//take two bytes
if (msg.length < 2) {
var err = new Error("Bad Return Value from mqtt auth: bad length");
callback(err, null);
}
var b1 = msg[0];
var b2 = msg[1];
//get the string length
var len = b1.charCodeAt(0) + b2.charCodeAt(0);
if (msg.length < len + 2) {
var err = new Error(
"Bad return value from mqtt auth: length longer than substring"
);
callback(err, null);
}
return msg.substring(0, len);
};
var onConnect = function() {
//subscribe to our topic
client.subscribe(ourTopic, { qos: 0 });
};
var success = false;
var msgArrived = function(msg) {
//we only anticipate receiving one message
if (msg.destinationName != ourTopic) {
return;
}
var body = msg.payloadString;
var tok = getString(body);
body = body.substring(tok.length + 2);
//usrid is unused by the sdk at the momment
var usrid = getString(body);
body = body.substring(usrid.length + 2);
var msgingHost = getString(body);
_this.setUser(email, tok);
_this.messagingURI = msgingHost;
success = true;
client.disconnect();
callback(false, _this.user);
};
var mqtt_options = {
useSSL: true,
cleanSession: true,
userName: _this.systemKey,
password: _this.systemSecret,
onSuccess: onConnect,
onFailure: function(msg) {
if (!success) {
var err = new Error("failed to authenticate: " + JSON.stringify(msg));
console.log(err);
callback(err, null);
}
}
};
client.onConnectionLost = function(msg) {
if (!success) {
var err = new Error("connection lost " + JSON.stringify(msg));
callback(err, null);
}
};
client.onMessageArrived = msgArrived;
client.connect(mqtt_options);
};
var masterCallback = null;
ClearBlade.prototype.registerMasterCallback = function(callback) {
if (typeof callback === "function") {
this.masterCallback = callback;
} else {
logger("Did you forget to supply a valid Callback!");
}
};
/*
* Helper functions
*/
var execute = function(error, response, callback) {
if (typeof callback === "function") {
if (masterCallback !== null) {
masterCallback(error, response);
}
callback(error, response);
} else {
logger("Did you forget to supply a valid Callback!");
}
};
var logger = function(message) {
if (ClearBlade.logging) {
console.log(message);
}
return;
};
var isObjectEmpty = function(object) {
/*jshint forin:false */
if (typeof object !== "object") {
return true;
}
for (var keys in object) {
return false;
}
return true;
};
/*
* request method
*
*/
var _createItemList = function(err, data, options, callback) {
if (data === undefined) {
callback(true, "There was some problem. Data is undefined");
} else {
var itemArray = [];
for (var i = 0; i < data.length; i++) {
itemArray.push(ClearBlade.prototype.Item(data[i], options));
}
callback(err, itemArray);
}
};
var _request = function(options, callback) {
var method = options.method || "GET";
var endpoint = options.endpoint || "";
var body = options.body || {};
var qs = options.qs || "";
var url = options.URI || "https://platform.clearblade.com";
var useUser = options.useUser || true;
var authToken = useUser && options.authToken;
var callTimeout = options.timeout || 30000;
if (useUser && !authToken && options.user && options.user.authToken) {
authToken = options.user.authToken;
}
var params = qs;
if (endpoint) {
url += "/" + endpoint;
}
if (params) {
url += "?" + params;
}
//begin XMLHttpRequest
var httpRequest;
if (typeof window.XMLHttpRequest !== "undefined") {
// Mozilla, Safari, IE 10 ..
httpRequest = new XMLHttpRequest();
// if "withCredentials is not in the XMLHttpRequest object CORS is not supported
// if (!("withCredentials" in httpRequest)) {
// logger("Sorry it seems that CORS is not supported on your Browser. The RESTful api calls will not work!");
// httpRequest = null;
// throw new Error("CORS is not supported!");
// }
httpRequest.open(method, url, true);
} else if (typeof window.XDomainRequest !== "undefined") {
// IE 8/9
httpRequest = new XDomainRequest();
httpRequest.open(method, url);
} else {
alert(
"Sorry it seems that CORS is not supported on your Browser. The RESTful api calls will not work!"
);
httpRequest = null;
throw new Error("CORS is not supported!");
}
// Set Credentials; Maybe some encryption later
if (authToken) {
httpRequest.setRequestHeader("CLEARBLADE-USERTOKEN", authToken);
httpRequest.setRequestHeader("ClearBlade-SystemKey", options.systemKey);
httpRequest.setRequestHeader(
"ClearBlade-SystemSecret",
options.systemSecret
);
} else {
httpRequest.setRequestHeader("ClearBlade-SystemKey", options.systemKey);
httpRequest.setRequestHeader(
"ClearBlade-SystemSecret",
options.systemSecret
);
}
if (!isObjectEmpty(body) || params) {
if (method === "POST" || method === "PUT") {
// Content-Type is expected for POST and PUT; bad things can happen if you don't specify this.
httpRequest.setRequestHeader("Content-Type", "application/json");
}
httpRequest.setRequestHeader("Accept", "application/json");
}
httpRequest.onreadystatechange = function() {
if (httpRequest.readyState === 4) {
// Looks like we didn't time out!
clearTimeout(xhrTimeout);
//define error for the entire scope of the if statement
var error = false;
if (httpRequest.status >= 200 && httpRequest.status < 300) {
var parsedResponse;
var response;
var flag = true;
// try to parse response, it should be JSON
if (
httpRequest.responseText == "[{}]" ||
httpRequest.responseText == "[]"
) {
error = false;
execute(error, [], callback);
} else {
try {
response = JSON.parse(httpRequest.responseText);
parsedResponse = [];
for (var item in response) {
if (response[item] instanceof Object) {
for (var key in response[item]) {
if (response[item][key] instanceof Object) {
if (response[item][key]["_key"]) {
delete response[item][key]["_key"];
}
if (response[item][key]["collectionID"]) {
delete response[item][key]["collectionID"];
}
parsedResponse.push(response[item][key]);
continue;
} else {
if (response[item]["_key"]) {
delete response[item]["_key"];
}
if (response[item]["collectionID"]) {
delete response[item]["collectionID"];
}
parsedResponse.push(response[item]);
break;
}
}
} else {
flag = true;
}
}
} catch (e) {
// the response probably was not JSON; Probably had html in it, just output it until all requirements of our backend are defined.
if (e instanceof SyntaxError) {
response = httpRequest.responseText;
// some other error occured; log message , execute callback
} else {
logger("Error during JSON response parsing: " + e);
error = true;
execute(error, e, callback);
}
} // end of catch
// execute callback with whatever was in the response
if (flag) {
execute(error, response, callback);
} else {
execute(error, parsedResponse, callback);
}
}
} else {
var msg = httpRequest.responseText;
// var msg = "Request Failed: Status " + httpRequest.status + " " + (httpRequest.statusText);
/*jshint expr: true */
// httpRequest.responseText && (msg += "\nmessage:" + httpRequest.responseText);
logger(msg);
error = true;
execute(error, msg, callback);
}
}
};
logger("calling: " + method + " " + url);
body = JSON.stringify(body);
// set up our own TimeOut function, because XMLHttpRequest.onTimeOut is not implemented by all browsers yet.
function callAbort() {
httpRequest.abort();
logger("It seems the request has timed Out, please try again.");
execute(true, "API Request TimeOut", callback);
}
// set timeout and timeout function
var xhrTimeout = setTimeout(callAbort, callTimeout);
httpRequest.send(body);
};
ClearBlade.request = function(options, callback) {
if (!options || typeof options !== "object") {
throw new Error("Request: options is not an object or is empty");
}
_request(options, callback);
};
var _parseOperationQuery = function(_query) {
return encodeURIComponent(JSON.stringify(_query.FILTERS || []));
};
var _parseQuery = function(_query) {
var parsed = encodeURIComponent(JSON.stringify(_query));
return parsed;
};
/**
* Creates a new Collection that represents the server-side collection with the specified collection ID
* @class ClearBlade.Collection
* @classdesc This class represents a server-side collection. It does not actully make a connection upon instantiation, but has all the methods necessary to do so. It also has all the methods necessary to do operations on the server-side collections.
* @param {String} collectionID The string ID for the collection you want to represent.
* @example
* var col = cb.Collection("12asd3049qwe834qe23asdf1234");
*/
ClearBlade.prototype.Collection = function(options) {
var collection = {};
if (typeof options === "string") {
collection.endpoint = "api/v/1/data/" + options;
options = { collectionID: options };
} else if (options.collectionName && options.collectionName !== "") {
collection.isUsingCollectionName = true;
collection.name = options.collectionName;
collection.endpoint =
"api/v/1/collection/" + this.systemKey + "/" + options.collectionName;
} else if (options.collectionID && options.collectionID !== "") {
collection.endpoint = "api/v/1/data/" + options.collectionID;
} else {
throw new Error(
"Must supply a collectionID or collectionName key in options object"
);
}
collection.user = this.user;
collection.URI = this.URI;
collection.systemKey = this.systemKey;
collection.systemSecret = this.systemSecret;
/**
* Reqests an item or a set of items from the collection.
* @method ClearBlade.Collection.prototype.fetch
* @param {Query} _query Used to request a specific item or subset of items from the collection on the server. Optional.
* @param {function} callback Supplies processing for what to do with the data that is returned from the collection
* @return {ClearBlade.Item} An array of ClearBlade Items
* @example <caption>Fetching data from a collection</caption>
* var returnedData = [];
* var callback = function (err, data) {
* if (err) {
* throw new Error (data);
* } else {
* returnedData = data;
* }
* };
*
* col.fetch(query, callback);
* //this will give returnedData the value of what ever was returned from the server.
*/
collection.fetch = function(_query, callback) {
var query;
/*
* The following logic may look funny, but it is intentional.
* I do this because it is typeical for the callback to be the last parameter.
* However, '_query' is an optional parameter, so I have to check if 'callback' is undefined
* in order to see weather or not _query is defined.
*/
if (callback === undefined) {
callback = _query;
query = {
FILTERS: []
};
query = "query=" + _parseQuery(query);
} else {
if (Object.keys(_query) < 1) {
query = "";
} else {
query = "query=" + _parseQuery(_query.query);
}
}
var reqOptions = {
method: "GET",
endpoint: this.endpoint,
qs: query,
user: this.user,
URI: this.URI
};
var callCallback = function(err, data) {
if (err) {
callback(err, data);
} else {
_createItemList(err, data.DATA, options, callback);
}
};
if (typeof callback === "function") {
ClearBlade.request(reqOptions, callCallback);
} else {
logger("No callback was defined!");
}
};
/**
* Creates a new item in the collection and returns the created item to the callback
* @method ClearBlade.Collection.prototype.create
* @param {Object} newItem An object that represents an item that you want to add to the collection
* @param {function} callback Supplies processing for what to do with the data that is returned from the collection
* @example <caption>Creating a new item in the collection</caption>
* //This example assumes a collection of items that have the columns: name, height, and age.
* var newPerson = {
* name: 'Jim',
* height: 70,
* age: 32
* };
* var callback = function (err, data) {
* if (err) {
* throw new Error (data);
* } else {
* console.log(data);
* }
* };
* col.create(newPerson, callback);
* //this inserts the the newPerson item into the collection that col represents
*
*/
collection.create = function(newItem, callback) {
var reqOptions = {
method: "POST",
endpoint: this.endpoint,
body: newItem,
user: this.user,
URI: this.URI
};
if (typeof callback === "function") {
ClearBlade.request(reqOptions, callback);
} else {
logger("No callback was defined!");
}
};
/**
* Updates an existing item or set of items
* @method ClearBlade.Collection.prototype.update
* @param {Query} _query Query object to denote which items or set of Items will be changed
* @param {Object} changes Object representing the attributes that you want changed
* @param {function} callback Function that handles the response of the server
* @example <caption>Updating a set of items</caption>
* //This example assumes a collection of items that have the columns name and age.
* var query = ClearBlade.Query();
* query.equalTo('name', 'John');
* var changes = {
* age: 23
* };
* var callback = function (err, data) {
* if (err) {
* throw new Error (data);
* } else {
* console.log(data);
* }
* };
*
* col.update(query, changes, callback);
* //sets John's age to 23
*/
collection.update = function(_query, changes, callback) {
var reqOptions = {
method: "PUT",
endpoint: this.endpoint,
body: { query: _query.query.FILTERS, $set: changes },
user: this.user,
URI: this.URI
};
if (typeof callback === "function") {
ClearBlade.request(reqOptions, callback);
} else {
logger("No callback was defined!");
}
};
/**
* Removes an item or set of items from the specified collection
* @method ClearBlade.Collection.prototype.remove
* @param {Query} _query Query object that used to define what item or set of items to remove
* @param {function} callback Function that handles the response from the server
* @example <caption>Removing an item in a collection</caption>
* //This example assumes that you have a collection with the item whose 'name' attribute is 'John'
* var query = ClearBlade.Query();
* query.equalTo('name', 'John');
* var callback = function (err, data) {
* if (err) {
* throw new Error (data);
* } else {
* console.log(data);
* }
* };
*
* col.remove(query, callback);
* //removes every item whose 'name' attribute is equal to 'John'
*/
collection.remove = function(_query, callback) {
var query;
if (_query === undefined) {
throw new Error("no query defined!");
} else {
query = "query=" + _parseOperationQuery(_query.query);
}
var reqOptions = {
method: "DELETE",
endpoint: this.endpoint,
qs: query,
user: this.user,
URI: this.URI
};
if (typeof callback === "function") {
ClearBlade.request(reqOptions, callback);
} else {
logger("No callback was defined!");
}
};
collection.columns = function(callback) {
if (typeof callback === "function") {
ClearBlade.request(
{
method: "GET",
URI: this.URI,
endpoint: this.isUsingCollectionName
? "api/v/2/collection/" +
this.systemKey +
"/" +
this.name +
"/columns"
: this.endpoint + "/columns",
systemKey: this.systemKey,
systemSecret: this.systemSecret,