NodeJS Version Upgrade 5.1.0 and Error Handling
1 Version Upgrade
4.2.2 on Local Mac OS
https://nodejs.org/dist/v4.2.2/
I like to build all these things on my own server. Download the source version.
> wget https://nodejs.org/dist/v4.2.2/node-v4.2.2.tar.gz
> ./configure --prefix=/Users/carl/tool/node-v4.2.2
Make and make install there. Add it to the class path.
5.1.0 on Local Mac OS
https://nodejs.org/dist/v5.1.0/
> wget https://nodejs.org/dist/v5.1.0/node-v5.1.0.tar.gz
> ./configure --prefix=/Users/carl/tool/node-v5.1.0
Do the same thing as 4.2.2.
> node --version && npm --version
v5.1.0
3.3.12
5.1.0 on CentOS/Linux
Prepare the build env
> sudo yum groupinstall "Development Tools"
Same thing as on MAC
Add things to the path as follow:
>vi ~/.bash_profile
PATH=$PATH:$HOME/.local/bin:$HOME/bin
JAVA_HOME=/opt/jdk1.8.0_60
export JAVA_HOME
JRE_HOME=/opt/jdk1.8.0_60/jre
export JRE_HOME
PATH=$PATH:/opt/jdk1.8.0_60/bin:/opt/jdk1.8.0_60/jre/bin
PATH=$PATH:/opt/sbt/bin
PATH=$PATH:/opt/node/bin
export PATH
Done
> node --version && npm --version
v5.1.0
3.3.12
5.1.0 on Ubuntu System
Same as on MAC OS
5.1.0 on RaspberryPi
Currently version is as follow:
> node --version && npm --version
v0.12.7
2.11.3
Check OS version
> uname -a
Linux raspberrypi1 4.1.7+ #817 PREEMPT Sat Sep 19 15:25:36 BST 2015 armv6l GNU/Linux
> uname -a
Linux raspberrypi2 4.1.7-v7+ #817 SMP PREEMPT Sat Sep 19 15:32:00 BST 2015 armv7l GNU/Linux
Oh, my different raspberryPis are different.
On ARMV61
> wget https://nodejs.org/dist/v5.1.0/node-v5.1.0-linux-armv6l.tar.gz
Put it in the working directory
> mv node-v5.1.0-linux-armv6l ~/tool/node-v5.1.0
> sudo ln -s /home/carl/tool/node-v5.1.0 /opt/node-v5.1.0
> sudo ln -s /opt/node-v5.1.0 /opt/node
Add that node to the path, then check the version
> node --version && npm --version
v5.1.0
3.3.12
On ARMV71
> wget https://nodejs.org/dist/v5.1.0/node-v5.1.0-linux-armv7l.tar.gz
Same thing as On ARMV61
> node --version && npm --version
v5.1.0
3.3.12
2 Error Handling
For example:
/*jslint node: true */
'use strict';
var ContextIO = require('contextio');
var HashMap = require('hashmap').HashMap;
var _ = require('../underscore');
var services = null;
var cxtioClient = null;
var jobsFilter = null;
var resumesFilter = null;
module.exports = {
init: init,
fetchEmailsWithFilter: fetchEmailsWithFilter,
fetchAttachmentLink: fetchAttachmentLink,
fetchMailContent: fetchMailContent,
fetchResumesByAccountCode: fetchResumesByAccountCode,
fetchJobsByAccountCode: fetchJobsByAccountCode,
fetchAccountInfoByEmail: fetchAccountInfoByEmail
};
function init(myServices) {
services = myServices;
var logger = services.get('logger');
var config = services.get('config');
logger.info("EmailScan - initConnection ---------------");
logger.info(config.data.contextio);
cxtioClient = new ContextIO.Client(config.data.contextio.version, config.data.contextio.endpoint, config.data.contextio.security);
jobsFilter = config.data.contextio.jobsFilter;
resumesFilter = config.data.contextio.resumesFilter;
//todo: log this twice?
logger.info("EmailScan - initConnection ---------------");
}
function fetchEmailsWithFilter(accountCode, filter, callback) {
var logger = services.get('logger');
logger.trace("EmailScan - fetchEmailsWithFilter - accountCode = " + accountCode);
logger.trace("EmailScan - fetchEmailsWithFilter - filter = " + JSON.stringify(filter));
cxtioClient
.accounts(accountCode)
.messages()
.get(filter, function (err, data) {
if (err) {
logger.error("EmailScan - fetchEmailsWithFilter - fail to fetch the messages.");
callback(err, []);
return;
}
if (!data) {
var warning_message = "EmailScan - fetchEmailsWithFilter - fail to fetch any messages with filter = " + JSON.stringify(filter);
logger.warn(warning_message);
callback(null, []);
}
if (data.statusCode !== 200) {
handleNotOk(data, logger, callback);
return;
}
var msgBody = data.body;
logger.trace("EmailScan - fetchEmailsWithFilter - get the messages info with filter = " + JSON.stringify(filter));
logger.trace("EmailScan - fetchEmailsWithFilter - get response info = " + JSON.stringify(data));
logger.trace("EmailScan - fetchEmailsWithFilter - get message body = " + JSON.stringify(msgBody));
if (msgBody.length < 1) {
var warning_msg = "EmailScan - fetchEmailsWithFilter - fail to fetch any messages with filter = " + JSON.stringify(filter);
logger.warn(warning_msg);
callback(null, []);
return;
}
callback(null, msgBody);
});
}
function handleNotOk (data, logger, callback) {
//error handle, handle the error
logger.error("Unsuccessful response handle " + JSON.stringify(data));
var statusCode = 500;
if (data.statusCode !== undefined) {
statusCode = data.statusCode;
}
var err_obj = {"statusCode": statusCode, "message": data.body};
callback(err_obj, null);
}
I like the idea that my colleague change the exports part. Error Handling on the express.io controller
/*jslint node: true */
'use strict';
var HashMap = require('hashmap').HashMap;
var services = null;
module.exports = {
getAccountByEmail : function(req, res) {
//services
var emailscan = services.get('emailscan');
var logger = services.get('logger');
//params
var email = req.params.email;
emailscan.fetchAccountInfoByEmail(email, function(err, account){
if(err){
res.status(err.statusCode).json(err.message);
return ;
}
if(account === undefined || account === null){
res.status(404).json({ "type":"error", "value":"The email[" + email + "] is not valid!"});
return ;
}
logger.debug("account info = " + account.id);
res.json(account);
return ;
});
},
init : function(myservices){
services = myservices;
}
};
References:
http://sillycat.iteye.com/blog/2256088
NodeJS Version Upgrade 5.1.0 and Error Handling
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