Sponsored transaction enabled auction

.github/workflows/rust-fmt-lint.yaml

@@ -12,8 +12,8 @@ on:
   workflow_dispatch: # allows manual trigger
 
 env:
-  RUST_FMT: nightly-2022-06-09-x86_64-unknown-linux-gnu
-  RUST_CLIPPY: 1.65
+  RUST_FMT: nightly-2023-04-01-x86_64-unknown-linux-gnu
+  RUST_CLIPPY: 1.67
 
 jobs:
   "lint_fmt":
@@ -26,6 +26,7 @@ jobs:
         crates:
           - gallery/verifier/Cargo.toml
           - sponsoredTransactions/backend/Cargo.toml
+          - sponsoredTransactionsAuction/backend/Cargo.toml
 
     steps:
       - name: Checkout
@@ -54,6 +55,7 @@ jobs:
         crates:
           - gallery/verifier/Cargo.toml
           - sponsoredTransactions/backend/Cargo.toml
+          - sponsoredTransactionsAuction/backend/Cargo.toml
 
     steps:
       - name: Checkout

.gitignore

@@ -27,4 +27,4 @@ yarn-error.log*
 target
 dist
 gallery/public
-.eslintcache
+.eslintcache

README.md

@@ -16,13 +16,15 @@ The following examples are available.
 
 - [gallery](./gallery/) demonstrates a gallery which requires the user to authorize using ID proofs from the browser wallet.
 
-- [sponsoredTransactions](./sponsoredTransactions/) demonstrates how a user (without holding CCD in the wallet) can sign a message with the browser wallet or mobile wallet through wallet connect and submit the signature to a backend. The backend pays for the transaction fee and submits the sponsored transaction on behalf of the user to the chain.
+- [sponsoredTransactions](./sponsoredTransactions/) demonstrates how a user (without holding CCD in the wallet) can sign a message with the browser wallet and submit the signature to a backend. The backend pays for the transaction fee and submits the sponsored transaction on behalf of the user to the chain.
 
-- [simple age verification](./simpleAgeVerification/) demonstrates in a simple use case of verifiying the users age with the browser wallet.
+- [sponsoredTransactionsAuction](./sponsoredTransactionsAuction/) demonstrates how to use a sponsored-transaction-enabled token as a payment method in an auction contract so that the user does not have to hold CCD in their wallet. The user signs a bidding message with the browser wallet and submits the signature to a backend. The backend pays for the transaction fee and submits the sponsored transaction on behalf of the user to the chain.
+
+- [simple age verification](./simpleAgeVerification/) demonstrates in a simple use case of verifying the user's age with the browser wallet.
 
 ## Setup
 
-Some projects uses submodules, to initialize or update those, run:
+Some projects use submodules, to initialize or update those, run:
 ```shell
 git submodule update --init --recursive
 ```

sponsoredTransactions/Dockerfile

@@ -6,12 +6,12 @@ FROM ${node_base_image} AS frontend
 WORKDIR /app
 COPY ./sponsoredTransactions/frontend ./
 
-RUN yarn && yarn cache clean
+RUN yarn
 RUN yarn build
 
 FROM ${rust_base_image} AS backend
 
-WORKDIR /backend
+WORKDIR /backend/app
 COPY ./deps/concordium-rust-sdk /deps/concordium-rust-sdk
 COPY ./sponsoredTransactions/backend ./
 
@@ -27,7 +27,7 @@ ENV SMART_CONTRACT_INDEX=6372
 
 ENV ACCOUNT_KEY_FILE=/KEY_FILE
 
-COPY --from=backend ./backend/target/release/sponsored-transaction-backend ./main
+COPY --from=backend ./backend/app/target/release/sponsored-transaction-backend ./main
 COPY --from=frontend ./app/dist ./public
 
 RUN chmod +x ./main

sponsoredTransactions/frontend/package.json

@@ -10,7 +10,6 @@
         "@concordium/browser-wallet-api-helpers": "2.4.0",
         "@concordium/react-components": "^0.3.0",
         "@concordium/web-sdk": "^3.4.0",
-        "@thi.ng/leb128": "^2.1.18",
         "@types/sha256": "^0.2.0",
         "@walletconnect/types": "^2.1.4",
         "eslint": "^8.37.0",
@@ -31,7 +30,6 @@
         "cross-env": "^7.0.3",
         "esbuild": "^0.14.42",
         "esbuild-plugin-svgr": "^1.0.1",
-        "eslint": "7",
         "eslint-config-airbnb": "^19.0.4",
         "eslint-config-airbnb-typescript": "^17.0.0",
         "eslint-config-prettier": "^8.5.0",