DFX does not deploy backend canister

Developers Rust
1

I am attempting to deploy the Rust program listed on the Adding and searching simple records page as a backend canister.

I currently have the following dfx.json:

{
  "canisters": {
    "app": {
      "backend": {
        "main": "backend/main.rs",
        "type": "rust"
      },
      "frontend": {
        "entrypoint": "src/index.tsx"
      },
      "source": ["build"],
      "type": "assets"
    }
  }
}

Within my backend folder, I have a cargo.toml and main.rs. The main.rs consists of the code listed in this page.

When I run dfx build and then dfx deploy, it currently only builds and deploys the frontend. What could I be doing wrong?

2

Replace the dfx.json with this one and rename your canister at your convenience

{
  "canisters": {
    "rust_profile_backend": {
      "candid": "src/rust_profile_backend/rust_profile_backend.did",
      "package": "rust_profile_backend",
      "type": "rust"
    },
    "rust_profile_frontend": {
      "dependencies": [
        "rust_profile_backend"
      ],
      "frontend": {
        "entrypoint": "src/rust_profile_frontend/src/index.html"
      },
      "source": [
        "src/rust_profile_frontend/assets",
        "dist/rust_profile_frontend/"
      ],
      "type": "assets"
    }
  },
  "defaults": {
    "build": {
      "args": "",
      "packtool": ""
    }
  },
  "output_env_file": ".env",
  "version": 1
}```
1 Like
3

This defines a single canister "app", within which you have "backend", which is ignored because the canister app is of type assets. Move backend up by one level and it should work

4

Thank you for the response! How did

Ah, it seems like I will need to generate a candid file in order for it to work. I’ll take a look!