Assets canisters in local network

How to use the assets files, like images in deveploment network

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you need to define the “assets” canister in dfx.json file. For example :

“icevent_assets”: {
“dependencies”: [
“frontend”: {
“entrypoint”: “src/icevent_assets/src/index.html”
“source”: [
“type”: “assets”

in the source folder, you can put any assets as normal webapps

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Thanks for answer, but i don’t know was how to use the images in assets canister.
In IC network, set the img src to " https://<CANISTER_ID>",
What i should do in Local network

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You need to install icx-proxy from the agent-rs repo.

Then, run something like this:

icx-proxy --address --replica http://localhost:$(cat ~/<your home dir>/.dfx/replica-configuration/replica-1.port) --dns-alias -v -v

Make sure you run dfx replica as well.

Then, replace the IP address, canister ID, and with your own, and call<asset name>.


Thanks, i will give it a try

Hello, I’m having trouble installing the tool on a Mac (Monterey). Are there any things I need to consider?

Which tool are you referring to?

ich-proxy, I have tried to install it on my mac, but without success, a lot of missing dependencies,

I have tried it also on a fresh ubuntu 20 box, but unfortunately there is a bug.

You can find here the issue:

I use an M1 Mac and haven’t had any issues, although I use nix.

If you’re interested I could share the nix flake I used.

Thank you, I use homebrew and will not change my settings. That will bring more problems, eventually.

The reason for that tool is, I try to setup a local replica which all developers in my company can use as a kind of central development server.

Do you have any solution for that ?

Thanks for any hint.

The great thing about nix flakes is that they are project-local but share a global cache (the nix store)

Anyway, I’ll take a look and see what I had to do to get it working.

Do you have any specific errors you’re running into?

You don’t actually need to run the proxy yourself - dfx deploy will work, and you can access the files on your local network using localhost:8000.

On Chromium, it’s possible to use the url pattern of http://<canister-id>.localhost:8000/<asset>, while for most browsers, you will need to use http://localhost:8000/<asset>?canisterId=<canister-id>

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ok, but the question for me is, can I access the frontend canister also from other machines in my network?

I built from source and had to make sure some dependencies were available. Here’s what I did, in case it helps:

buildInputs = [] ++ pkgs.lib.optionals pkgs.stdenv.isDarwin [


thank you for your answer, but I solved my problem by changing the dfx.json network binding from to my local IP 192.x.x.x and this is working too.


I personally usually reach for ngrok first in those situations, but that’s a good tip!