bash: make: command not found

koajs/koa#40

PULL REQUESTS WELCOME!!!

The "hello-world" runs out of the box and is really easy.

The "api-boilerplate" example needs some extra files and doesn't run work.

I know the version of koa used in the examples differs from the version I'm using following along with the examples (2.2.0 vs. 2.5.2), but wanted to raise a fundamental difference in the ctx object for extracting files from the request:

app.js in the examples has the following:

const files = ctx.request.body.files || {};

In version 2.5.2, this has to be set as follows:

const files = ctx.request.files || {};

Pretty sure it's a difference between versions, but figured I'd raise the issue in the event that someone else has troubles.

[2:54 pm, 03/08/2021] 🍫🍫: 1. Given values on the next page, write a function that returns an array of strings in the
following format
["Norah | AAA-6818 | 564.67","Norah | AAA-4671 | 138971.19"]
2. Execute your function and output the results as an array in console log for the following
scenarios:
A) filtered by Norah with all account types (ROT, IRA, AAA)
B) filtered by account type sorted by balance ascending
C) filtered by Alyx with IRA account type; sorted by balance descending
D) filtered by All users; sorted by balance ascending
users = [
{
id: "1",
name: "Norah"
},
{
id: "2",
name: "Alyx"
}
];
accounts = [
{
account: "IRA-4679",
user: "1",
balance: "5175.36"
},
{
account: "AAA-3571",
user: "1",
balance: "3896342.08"
},
{
account: "AAA-4671",
user: "1",
balance: "138971.19"
},
{
account: "ROT-1687",
user: "2",
balance: "2686.00"
},
{
account: "AAA-7894",
user: "2",
balance: "68761.32"
},
{
account: "IRA-6818",
user: "2",
balance: "564.67"
},
{
account: "IRA-6819",
user: "2",
balance: "4564.67"
}
};

Your examples link to a 404 github page

i think most people are going to just view this on github vs. actually cloning it, so i think we should move most of the non-technical and philosophical explanations to a readme in each directory. opinions?

I'v installed the dependence, but , I can't run the test.js file like this:

node .\base-auth\test.js

It shows ReferenceError: describe is not defined.
can they be runing successfully in your computer?

I use vscode 1.17.1
Os: windows
node is the latest version 8.6.0

While the Koa docs specifically say that setting ctx.respond to false is not a supported pattern, it is necessary for embedding a Koa application into a large Express application -- the use case is incrementally moving routes from Express/Connect style to Koa. I'm curious if you're open to adding an example here of how to do that, because it can be a little tricky and there are several pitfalls. As a reference example I put together this repo: https://github.com/bttmly/koa-within-express

But I think it could be useful here for others looking for an Express to Koa migration path!

The stream-server-side-events examples located here https://github.com/koajs/examples/tree/master/stream-server-side-events

Using master from koajs/examples with node v0.12.0 to run the stream-server-side-events example program, I had a couple problems:

1. I had to add if (!module.parent) app.listen(3000); as the final line of app.js

2. I got the following error when I connected to http://localhost:3000

   richs-mbp-10715:stream-server-side-events richb$ node --harmony app.js
   
   RangeError: msecs must be a non-negative finite number
       at Object.exports.enroll (timers.js:160:11)
       at Socket.setTimeout (net.js:329:12)
       at IncomingMessage.setTimeout (_http_incoming.js:89:15)
       at Object.<anonymous> (/Users/richb/github/KoaJSExamples/stream-server-side-events/app.js:9:12)
       at GeneratorFunctionPrototype.next (native)
       at Object.respond (/Users/richb/node_modules/koa/lib/application.js:180:10)
       at GeneratorFunctionPrototype.next (native)
       at Object.<anonymous> (/Users/richb/node_modules/koa/node_modules/koa-compose/index.js:29:12)
       at GeneratorFunctionPrototype.next (native)
       at onFulfilled (/Users/richb/node_modules/co/index.js:61:19)
   
   ^C
   

3. If I comment out the line setTimeout(Infinity) line, I get the following when I hit the server:

   richs-mbp-10715:stream-server-side-events richb$ node --harmony app.js 
   events.js:85
     throw er; // Unhandled 'error' event
           ^
   TypeError: Invalid non-string/buffer chunk
   at chunkInvalid (_stream_readable.js:384:10)
   at readableAddChunk (_stream_readable.js:140:12)
   at Subscription.Readable.push (_stream_readable.js:126:10)
   at Subscription._read (/Users/richb/github/KoaJSExamples/stream-server-side-events/db.js:30:30)
   at Subscription.Readable.read (_stream_readable.js:341:10)
   at resume_ (_stream_readable.js:725:12)
   at _stream_readable.js:717:7
   at process._tickCallback (node.js:355:11)
   
   

所有的请求都指向首页 其他页面都进不去了

In the example, custom 404 works only if no response from any downstream middleware.

Нowever, if any downstream middleware throws an exception, pageNotFound() middleware don't works (default 404 page will be sent).

See my pull request with a test (currently broken): https://github.com/koajs/examples/pull/82/files

in this example. it can only handle one connection at once. The other connections are waitting for the previous one finish up to start streaming process

the need swig in blog app.

app.use(function* (next){
  try {
    yield* next;
  } catch (err) {
    if (401 == err.status) {
      this.status = 401;
      this.body = 'cant haz that';
    } else {
      throw err;
    }
  }
});

==>

app.use(function *(next){
  try {
    yield next;
  } catch (err) {
    if (401 == err.status) {
      this.status = 401;
      this.set('WWW-Authenticate', 'Basic');
      this.body = 'cant haz that';
    } else {
      throw err;
    }
  }
});

I tried the 404 example , but I found some problems

I tried to make some requests with different custom headers(text/plain and application/json), but the I found that the responses were not what I expected:

➜  ~ http --print=Hhb localhost:3000 Content-Type:text/html
GET / HTTP/1.1
Accept: */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Type: text/html
Host: localhost:3000
User-Agent: HTTPie/0.9.9

HTTP/1.1 404 Not Found
Connection: keep-alive
Content-Length: 21
Content-Type: text/html; charset=utf-8
Date: Wed, 03 May 2017 16:48:50 GMT

<p>Page Not Found</p>

➜  ~ http --print=Hhb localhost:3000 Content-Type:application/json
GET / HTTP/1.1
Accept: */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Type: application/json
Host: localhost:3000
User-Agent: HTTPie/0.9.9

HTTP/1.1 404 Not Found
Connection: keep-alive
Content-Length: 21
Content-Type: text/html; charset=utf-8
Date: Wed, 03 May 2017 16:50:05 GMT

<p>Page Not Found</p>

➜  ~ http --print=Hhb localhost:3000 Content-Type:multipart/form-data
GET / HTTP/1.1
Accept: */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Type: multipart/form-data
Host: localhost:3000
User-Agent: HTTPie/0.9.9

HTTP/1.1 404 Not Found
Connection: keep-alive
Content-Length: 21
Content-Type: text/html; charset=utf-8
Date: Wed, 03 May 2017 16:50:35 GMT

<p>Page Not Found</p>

No matter how I set up what kind of Content-Type,The results are always same.

Is this a bug or my use is not correct?

I'm mostly interested in the stream-view and SSE examples. Thanks.

https://github.com/koajs/examples/blob/master/stream-view/view.js

koajs/koa#142 (comment)

Hi,
I cloned the whole repo and ran npm install， then nav into blog/ ran 'node index.js'， and got this error. Can you help with it? thank you. 😄

I'm using node v5.4.0 and linuxmint 3.16.0-38-generic.

Error: Invalid cache option true found. Expected "memory" or { get: function (key) { ... }, set: function (key, value) { ... } }.
      at validateOptions (/home/sabrina/sa/koa-examples/node_modules/swig/lib/swig.js:113:15)

I hope this makes sense but I am trying to see how I will be able to update my application with koa with no restart.

basically, all started request should keep flowing as they began ; all new request should flow to the new version of the app.

in pseudo code it would be something like

var rolling = [ myapp ]
var app = koa();
app.use(function *() {
    var m = compose(rolling[0])
    return yield m.call(this, next);
});

... somewhere an event does a
rolling.unshift(newapp);

now if I have a koa-livecount middleware like

function livecounter() {

  var count = 0;
  return function livecount*(next) {
    count +=1;
    yield next;
    count -=1;
  }

}

with

myapp.use(livecounter());

I could know when myapp has finished handling requests.
(is this really correct when throw is used somewhere below ? is there a way to know when there are zero processing requests downstream for an app or a middleware ?)

when i know that myapp is not used anymore I can pop it out of the rolling array.

do you think something like this could work and could we try to setup an example for this ?

Stream never stop.

The included upload example throws an error that part.pipe is not defined.

migrated from koajs/koa#101

node upload/app.js

open http://localhost:3000
choose a file
click upload

TypeError: Cannot read property 'file' of undefined

I can see how to use koa application in express using koa.callback() but how do I mount an existing express app in koa?

Thank you

Adding an example for how to do websockets would be grand, I'll PR one once I figure it out myself 😅

The error example only details how to handle this.throw and throw new. Where as the koajs application *respond(next) generator handles 404 by

// status body
var status = this.status = this.status || 404;
...
if (null == body) {
  this.type = 'text';
  body = http.STATUS_CODES[status];
}

I would need to use a second generator to repeat similar logic to the *respond(next) generator to enforce json as well. Any suggestions how to handle this elegantly / use the same try / catch generator as per the example?

If I understand well, the vhost example no longer works with version 3.0.0 of koa-compose.

Could it be updated?

I take it koa-compose 3.0.0 cannot be used with Koa 1.x.x.

Maybe adding coding styles check for this repo could make the example codes coherence.
Just some suggestion.
See also:
https://github.com/koajs/koa/blob/v2.x/.eslintrc.yml
https://github.com/feross/standard

I have an Express app that already starts its own http server. How can I mount a koa app on top of this existing server, so that it shares the same port? Similar to how you would mount subapps in Express

Would I include the koa app as an Express middlware? Do I still use app.callback() for that?

See koajs/logger#8

Please create an example similar to https://github.com/visionmedia/express/tree/master/examples/vhost as it would be invaluable :)

Hello, I am trying to use the properties parameter with ctx.throw but I do not see the object added anywhere in the response. For example, if part of a request message is missing, I want to do something like the following:

if (!username) {
    return ctx.throw(400, 'Invalid request message', {
        validationErrors: {
            username: 'Username cannot be null',
        },
    });
}

When I try to do a console.log of the response, I see the status and message set properly but I do not see the validationErrors object in the response. Any suggestions on this are appreciated.

While studying koajs capabilities i made some REST API by using latest koa.
The question are examples, in this repo, should consist of next version yet or until official release only koa1?

About my code https://github.com/DoumanAsh/lazy-http-can
This repo consist of simple REST service that allows you to test HTTP requests.
There are several things:

• ETag usage (without 3pp lib)
• Example when bypassing koa ctx.response might be cool :) https://github.com/DoumanAsh/lazy-http-can/blob/master/server/router.js#L44-L45
• Different kinds of responses (text, files, streams)
• Delayed response
• Usage of koa-better-router (mostly the only 3pp middle-ware i decided to use)

Can I add these links to this repo?

1. Building a RESTful API with Koa and Postgres
2. User Authentication with Passport and Koa

Hi,

I'm trying to upload files using the code from example. But it's not working.

In the controller I wrote the code

var parse = require('co-busboy');
var fs = require('fs');
var path = require('path');

var parts = parse(this);
var part;

while (part = yield parts) {
    var stream = fs.createWriteStream('/tmp/' + part.filename);
    part.pipe(stream);
    console.log('uploading %s -> %s', part.filename, stream.path);
}

But when I upload images in the console I only get new uploading location. But on new location images are not saving.

Any Solution?

Thanks in Advance,
Nixon

try to log every push on server - you'll see than on a client there is not a stream - there is long waiting for whole result as usual
In my samples the first push occurs in 2 ms but on the client TTFB is equal sum of times in the request - so there is no real stream unfortunately

Both packages are currently unmaintained.

Koa-router has already been forked by us and is available as @koa/router.
Swig has been forked too and undergoes some further development as swig-templates.

These two forks aren't under to much development either and more or less stale but using @koa/router gives us a bit more control and swig-templates already fixed some bugs and has more up-to-date dependencies (which npm audit will tell you).
I haven't bothered looking into the other packages but these two I think should get updated...

there is a "undefined" when I run the compose/app.js
undefined / - 6
undefined / - 1
undefined /aaaa - 0

I think that the code 'this' will be modified to 'ctx' in the 'logger()' function.