If one:

• has two projects, one coded from the book (book project) and another one from git (git project)
• runs ./db/seed.sh from the git project.
• runs make test from the book project.

then one test will fail because the first article in the book ends with to improve network coverage... and it does not match the string from the git project to improve network coverage.

Possible solution is to finish the article sentence in the book with a dot, even when the strings are longer.

I'm using the index.js and app.js raw code from git hub to run the mocha test. I'm recieving a timeout and failure when testing.

As we can see in this screenshot, it does not following any linear order.

Can we fix it to make it easier to follow during reading?

At: https://github.com/azat-co/practicalnode/blob/master/Chapter11/chapter11.md#caching-with-varnish

The following link is broken:

Varnish Cache video (http://youtu.be/x7t2Sp174eI)

Somebody deleted video you are linking to.
Varnish Cache video(link)

I'm a bit confused by this section. After "However, it's trivial to write your own middleware..." well, an example of a middleware to route by query string arguments is given. And then it says: "The request handler itself (index.js, in this case) is straightforward".

What index.js? The example was not mentioned as being in an index.js file. After all, is an example of something not included in express cli generated project. Is it the index.js in the routes folder? The one shown later is actually users.js.

The following path 'chapter1/media/Homebrew is causing the git checkout to fail and therefore the cloning succeeds but deletes the contents right after.

Is there anybody who can explain how to go about updating this to the newest versions of each module? I installed them, and got the server running, but then when I try to visit the port, I get some errors. If anybody's tried this, and could share their experience, I'd appreciate that.

http://stackoverflow.com/questions/26922125/node-js-post-causes-error

0 down vote favorite

I am running this app. the only change is twitter consumer key and secret I made in app.js file

I can run this app and sign-in with twitter. But when I try to post an article it causes error.

Connect
400 Error: request size did not match content length

at makeError (/home/myname/Documents/nodejs/practicalnode/ch7/blog-express/node_modules/body-parser/node_modules/raw-body/index.js:136:15)
at IncomingMessage.onEnd (/home/myname/Documents/nodejs/practicalnode/ch7/blog-express/node_modules/body-parser/node_modules/raw-body/index.js:106:13)
at IncomingMessage.g (events.js:180:16)
at IncomingMessage.emit (events.js:92:17)
at _stream_readable.js:938:16
at process._tickCallback (node.js:419:13)

What should I check?what could be wrong. thanks

As of Feb 11th 2020, request is fully deprecated(https://www.npmjs.com/package/request).

See also: request/request#3142.

Therefore, I propose to remove them from suggested alternatives.

If you agree, I've opened a PR: #63

I think you can talk about node security as well. that would be really interesting.

many files are missing in every chapters. kindly update the repo

Using the source code from git and the recommended start.sh from the book, when I try to sign in with Twitter, I get a 500 error from Express. (Key, Secret and Twitter name are set)

Console output:

starting step - getRequestToken
undefined
GET /auth/twitter 500 5898ms

This error appear in 155th page of this book.

I noticed that blog.js is empty.

Replace Grunt example with Webpack (Hot Module Replacement) in code and text (chapter 10)

https://github.com/azat-co/practicalnode/blob/master/chapter1/chapter1.md#prototypal-nature

var user = function (ops) {
  return { firstName: ops.name || 'John'
         , lastName: ops.name || 'Doe'
         , email: ops.email || '[email protected]'
         , name: function() { return this.firstName + this.lastName}
         }
}

var agency = function(ops) {
  ops = ops || {}
  var agency = user(ops)
  agency.customers = ops.customers || 0
  agency.isAgency = true
  return agency
}

should be

var user = function (ops) {
  return { firstName: ops.firstName || 'John'
         , lastName: ops.lastName || 'Doe'
         , email: ops.email || '[email protected]'
         , name: function() { return this.firstName + this.lastName}
         }
}

var agency = function(ops) {
  ops = ops || {}
  var agency = user(ops)
  agency.customers = ops.customers || 0
  agency.isAgency = true
  return agency
}

In the book, there is no mention how to download the javascripts/css files, e.g. bower install bootstrap#3.0.2 and bower install jquery#2.0.3. And if one follows the coding instructions without checking out the git source code, one does not see the final UI.

Also missing documentation: how to compile styl files to css. (e.g. stylus -w public/css/style.styl)

Moving the file mongo-skin.js to the folder blog-express/ and running node mongo-skin.js gives the following error:

(Using Node.js v0.10.31 and mongoDB 2.6.4)

db.collection('messages').findOneAndAddText('hi', function(count, id){
                          ^
TypeError: Object #<SkinClass> has no method 'findOneAndAddText'
    at Object.<anonymous> (/.../practicalnode/ch5/blog-express/mongo-skin.js:26:27)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:906:3

Mongoose is an ODM instead.

Hello,

I just wanted to point out that the images on the chapiter 2 are not displayed. The link to the images are not correct (only a capital letter which should not be there).

Otherwise, awesome content, thank you for your work ;)

do you have any plan for todo List?

The display URL (https://github.com/maxogden/art-of-node%23callbacks) at Taming Callbacks in Node.js is invalid. However Callbacks refers to the right URL(https://github.com/maxogden/art-of-node#callbacks).

Please vote on these topics to be included into the 2nd edition:

• http/2
• SSL
• NAPI (native modules)
• async/await, promises
• crypto
• Ethereum, dapps, web3
• React Native
• Electron
• Webpack
• ES6 modules in Node
• Babel
• Docker
• AWS
• k8s
• Axios
• Fetch API (node fetch npm module)
• GraphQL server
• TypeScript or Flow
• Yarn

This section of code in admin.js calls both remove and update functions, causing a 500 server error because the document gets deleted and when the update function runs it tries to edit a document that doesn't exist.

$(document.ready(function(){
var $element = $('.admin tbody');
$element.on('click','button.remove', remove);
$element.on('click','button', update);
}

I had to change it to:

$element.on('click', 'button.remove', remove);
$element.on('click', 'button.publish', update);
$element.on('click', 'button.unpublish', update);

I'm sure there is a better way to do this

• Chapter 1 (location 873 of 8083) link to "http://callbackhell.com/):" broken
• Chapter 2 (location 1564 of 8083) reference to process.evn.PORT instead of process.env.PORT
• Chapter 2 (location 1652 of 8083) Missing opening h1 tag:

"Produces the following HTML code: hello </h1><p>Welcome to the Practical Node.js!</p>" 

• Chapter 4 (location 2412 of 8083)
  Quote: "hence the name of the library (see the resemblance to handlebars on a bicycle?".
  Handlebars is named as such because it is a nickname for an impressive mustache. It has nothing to do with handlebars on a bicycle.
• Chapter 8 (location 5014 of 8083): refers to "Anglers JS" instead of "Angular JS".
• Chapter 8 (location 5465 of 8083): section title says "Hapi RESP API..." instead of "Hapi REST API..."
• Chapter 9 (Location 5779): example of of "full source code" of browser websocket implementation is missing error handler (ws.onerror = function(event){...} ).

A note in its repository says:

As of September 10, 2015, this version of the Document SDK will be deprecated in favor of the AWS.DynamoDB.DocumentClient in the official AWS SDK for JavaScript

I believe examples should be updated...

Mongoose is an ODM instead.

I'm having the same issue as in #5

I have set my consumer key and consumer secret as appropriate in Makefile

Could you please go through what settings/permissions the Twitter app requires?

Even a very short and simple step-by-step of creating the app and setting up the permissions would be enough to get this working so we can continue reading the book!

the end's callback function is always be passed two arguments err and response; if no error occurred, the first argument will be null;

request
.get('..')
.end(function(err, res){

});

Replace Derby example with Meteor in code and text (chapter 9)

• code is working
• text make sense
• code is consistent between files and text and in style (standardJS)