Cycles

scripts/bind.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+[[ "${1:-}" != "--help" ]] || {
+  cat <<-EOF
+	Generates candid files and bindings.
+
+	Prerequisites:
+	- Deploy all canisters to the 'local' network.  Or otherwise ensure that:
+	  - Wasm for each canister is at: '.dfx/local/canisters/$CANISTER/$CANISTER.wasm.gz'
+	    Note: You may need to set '"gzip": true' for canisters in 'dfx.json'.
+	  - Candid for each canister is at: '.dfx/local/canisters/$CANISTER/$CANISTER.did'
+	EOF
+
+  exit 0
+}
+
+# Generate candid for the backend
+scripts/did.sh # TODO: Use local Wasm as input.
+# Generate rust bindings
+scripts/bind/rust.sh
+# Format
+scripts/format.sh

scripts/bind/rust.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+[[ "${1:-}" != "--help" ]] || {
+  cat <<-EOF
+	Generates rust canister bindings.
+
+	Usage:
+	  $(basename $0) [canister_name..]
+	EOF
+
+  exit 0
+}
+
+# If no canisters are specified, generate bindings for all.
+if (($# == 0)); then
+  mapfile -t canisters < <(jq -r '.canisters|keys|.[]' dfx.json)
+else
+  canisters=("${@}")
+fi
+
+for canister in "${canisters[@]}"; do
+  canister_binding_config="./scripts/bind/rust/${canister}.toml"
+  if test -f "$canister_binding_config"; then
+    echo "INFO: Creating rust bindings for $canister..."
+    mkdir -p "src/backend/src/bind"
+    didc bind -t rs ".dfx/local/canisters/$canister/$canister.did" --config "$canister_binding_config" >"src/backend/src/bind/$canister.rs"
+  else
+    echo "INFO: No rust binding script for $canister at $canister_binding_config"
+  fi
+done

scripts/bind/rust/cycles_ledger.toml

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+[rust]
+visibility = "pub(crate)"
+attributes = "#[derive(CandidType, Deserialize, Debug, Eq, PartialEq, Clone)]"

src/backend/src/bind.rs

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+//! Bindings to call other canisters.
+
+pub mod cycles_ledger;