Unsupported step in meteor

[Bogdan Mustata]

Issue with the default connect middleware & S3 storage:

Error: Unsupported step: 
   at /node_modules/image-steam/lib/router/router.js:213:13
   at Array.map (native)
   at EventEmitter.getImageStepsFromRoute (/node_modules/image-steam/lib/router/router.js:206:21)
   at EventEmitter.p.getInfo (/node_modules/image-steam/lib/router/router.js:102:49)
   at /node_modules/image-steam/lib/http/connect.js:71:30
   at doCall (packages/meteorhacks_picker.js:140:16)

Query path:
http://localhost:3000/file-path/:/rs=w:320

Temporary solution: /node_modules/image-steam/lib/router/router.js:201

if (imageSteps.length && !imageSteps[0])
    imageSteps.splice(0, 1);
console.log(imageSteps);

Node & NPM version:

node -v
v4.5.0
npm -v
3.10.6

Any idea what's the best solution to fix this?

[Aaron Silvas]

Hey @bmustata -- i cannot repro using the info provided. If you're saying one of the image steps is falsey, this may indicate a configuration issue.

Can you provide the configuration you're using? (Excluding storage config)

[Bogdan Mustata]

@asilvas Thank you for the quick reply. In the config, I only have the storage setting.

"image-steam": "^0.32.0"

let streamOption = {
    "storage": {
        "driver": "s3",
        "endpoint": "s3.amazonaws.com",
        "accessKey": "...",
        "secretKey": "..."
    }
}

[Aaron Silvas]

And you're sure the above url is the one that is failing? Any other examples, or doesn't matter? This module is serving millions of requests without issue, so just trying to better understand what differs in your environment. I might experiment with node version but it'll probably be a day or two -- so the more you can diagnose the better. Feel free to issue a PR if you identify a bug.

[Aaron Silvas]

Verified it works as expected on node 4.5.0. Please advise on what may differ in your environment or how you're making the request.

[Aaron Silvas]

Closing. Reopen if still an issue.

[Bogdan Mustata]

I have just made a repo so we can reproduce the issue: @asilvas
https://github.com/bmustata/meteor-image-processing.

Working link:
http://localhost:3000/development-store/products_screenshots/2DEZk5QsuTNcKGp7W-7njzoi4wGGSdKfPbt-no-mans-sky-streams.jpg

Not working link:

http://localhost:3000/development-store/products_screenshots/2DEZk5QsuTNcKGp7W-7njzoi4wGGSdKfPbt-no-mans-sky-streams.jpg/:/rs=w:640

Error:
ImageStream error { [Error: Unsupported step: ]
    url: '/development-store/products_screenshots/2DEZk5QsuTNcKGp7W-7njzoi4wGGSdKfPbt-no-mans-sky-streams.jpg/://rs=w:640' }

[Aaron Silvas]

Appears to be a conflict with meteor. I'll try to find the time in the next couple days, but would appreciate you identifying the culprit if you can.

[Bogdan Mustata]

Tks for reopening the issue.

How to debug the issue:

Meteor.startup(function () {

    console.log("render/images startup");

    Picker.middleware(function (req, res, next) {
        console.log('Debug: url=', req.url, "originalUrl=", req.originalUrl);
        next()
    });

    var connect = new imgSteam.http.Connect(streamOption);
    Picker.middleware(connect.getHandler());

    connect.on('error', function (err) {
        console.error("ImageStream error", err);
    });
})

The issue is the req.url & res.originalUrl are both incorrect but your library is working fine.

Browsers link: file-link/:/rs=w:640
Express middleware: file-link/://rs=w:640

[Aaron Silvas]

What is Picker?

[Bogdan Mustata]

It's meteor middleware connect. https://github.com/meteorhacks/picker

[Aaron Silvas]

Forking your project as-is does not work at all. Installing meteor manually fails as well. If you'd like this fixed, you'll probably need to create a PR. It does appear to be a meteor specific issue, though.

[Bogdan Mustata]

I will investigate more and find the route cause, after that we will search for a solution.

[Bogdan Mustata]

This is a meteor related issue not related to node-image-steam or node. Closed.