use-ink/ink-examples

A set of examples for ink! smart contract language. Happy hacking!

ink-examples's Issues

Add example: Call Solidity contracts from ink!

The code is already available here: https://github.com/xermicus/call_solidity.

Needs to be ported to ink! 4.0 and a README needs to be added.

flipper error for the https://contracts-ui.substrate.io/

Hello,

I have used the flipper example

But the contracts-ui gives this error with no more explanations.

Probably the contracts rococo was not updated to the ink! 5.0.0, right ?

CI: Use `windows_server_64_core` runner

Currently our CI config is:

        platform:
          - ubuntu_20_64_core
          - macos-latest

Please add windows_server_64_core and see if it works.

Error: while deploy erc20 contract

I got this error while I am deploying erc20 smart contract in swanky dev container. The compilation is successfully done but got this error in deploying

⠋ DeployingError: createType(Balance):: String should not contain decimal points or scientific notation
    at createTypeUnsafe (/opt/swanky/node_modules/@polkadot/types-create/cjs/create/type.js:54:22)
    at TypeRegistry.createType (/opt/swanky/node_modules/@polkadot/types/cjs/create/registry.js:270:52)
    at /opt/swanky/node_modules/@polkadot/api-contract/cjs/Abi/index.js:145:204
    at Array.map (<anonymous>)
    at Abi.<anonymous> (/opt/swanky/node_modules/@polkadot/api-contract/cjs/Abi/index.js:145:143)
    at Object.toU8a (/opt/swanky/node_modules/@polkadot/api-contract/cjs/Abi/index.js:118:95)
    at CodePromise.<anonymous> (/opt/swanky/node_modules/@polkadot/api-contract/cjs/base/Code.js:31:169)
    at /opt/swanky/node_modules/@polkadot/api-contract/cjs/base/Code.js:45:185
    at Object.new (/opt/swanky/node_modules/@polkadot/api-contract/cjs/base/util.js:14:51)
    at DeployApi.deploy (/opt/swanky/node_modules/@astar-network/swanky-core/dist/lib/deploy-api.js:19:44)
✖ Error Deploying

e2e tests are failing

in flipper directory when running:

cargo test --features e2e-tests

getting this error:

  --> lib.rs:62:9
   |
62 |         #[ink_e2e::test]
   |         ^^^^^^^^^^^^^^^^
   |
   = help: message: contract build for /home/nikhil/astar/ink-examples/flipper/Cargo.toml failed: Loading of original wasm failed

error: custom attribute panicked
  --> lib.rs:94:9
   |
94 |         #[ink_e2e::test]
   |         ^^^^^^^^^^^^^^^^
   |
   = help: message: Once instance has previously been poisoned

warning: unused import: `super::*`
  --> lib.rs:57:13
   |
57 |         use super::*;
   |             ^^^^^^^^
   |
   = note: `#[warn(unused_imports)]` on by default

warning: unused import: `ink_e2e::build_message`
  --> lib.rs:58:13
   |
58 |         use ink_e2e::build_message;
   |             ^^^^^^^^^^^^^^^^^^^^^^

warning: `flipper` (lib test) generated 2 warnings
error: could not compile `flipper` (lib test) due to 2 previous errors; 2 warnings emitted

Add frontend for each example

Tracking issue to reflect this goal on the Parity Roadmap.

change_forward_address method Disappeared

Hello,

I follow this instruction to deploy an upgradable contract link. When I have to deploy the contract only gives me 2 methods flip and get. When I want to change the forward contract to invoke the change_forward_address method, the method Disappeared. Please help

Error in delegator example

When running the e2e-test and trying out the contract I get the following error:
E2e-test:

thread 'delegator::e2e_tests::e2e_delegator' panicked at 'error on ws request upload_code: Rpc(ClientError(Call(Custom(ErrorObject { code: ServerError(-32000), message: "Client error: Execution failed: Runtime panicked: Bad input data provided to upload_code: Input buffer has still data left after decoding!", data: None }))))', /Users/parity/.cargo/registry/src/github.com-1ecc6299db9ec823/ink_e2e-4.0.1/src/xts.rs:333:17

Running the contract:

tokio-runtime-worker jsonrpsee_server::transport::ws: WS transport error: i/o error: Socket is not connected (os error 57); terminate connection: 8

ERROR: Error invoking `cargo metadata` for Cargo.toml Caused by: `cargo metadata` exited with an error: error: failed to get `dia-oracle-getter` as a dependency of package `stable_coin_contract v4.0.0-beta.1 (/home/blockchain/myproject/coin)` Caused by: failed to load source for dependency `dia-oracle-getter` Caused by: Unable to update /home/blockchain/myproject/oracle-contracts/oracle-getter Caused by: failed to read `/home/blockchain/myproject/oracle-contracts/oracle-getter/Cargo.toml` Caused by: No such file or directory (os error 2)

I am facing this issue please anyone here who guide me how I solve this.

build ink-example /trait-dyn-cross-contract-calls fail

cd trait-dyn-cross-contract-calls/contracts/incrementer
cargo contract build
the error is :
Compiling trait-incrementer v4.0.0 (/private/var/folders/q3/qpr18mtx5pzdfzdp282189gw0000gn/T/cargo-contract_LdIgay/contracts/incrementer) error: the#[global_allocator]` in ink_allocator conflicts with global allocator in: ink_allocator

error[E0152]: duplicate lang item in crate ink_env (which ink depends on): panic_impl.
|
= note: the lang item is first defined in crate ink_env (which ink depends on)
= note: first definition in ink_env loaded from /Volumes/E/project/github.com/paritytech/ink-examples/trait-dyn-cross-contract-calls/target/ink/trait_incrementer/wasm32-unknown-unknown/release/deps/libink_env-732c71f7eb8a9501.rlib, /Volumes/E/project/github.com/paritytech/ink-examples/trait-dyn-cross-contract-calls/target/ink/trait_incrementer/wasm32-unknown-unknown/release/deps/libink_env-732c71f7eb8a9501.rmeta
= note: second definition in ink_env loaded from /Volumes/E/project/github.com/paritytech/ink-examples/trait-dyn-cross-contract-calls/target/ink/trait_incrementer/wasm32-unknown-unknown/release/deps/libink_env-d25c2c37eb82aaca.rlib, /Volumes/E/project/github.com/paritytech/ink-examples/trait-dyn-cross-contract-calls/target/ink/trait_incrementer/wasm32-unknown-unknown/release/deps/libink_env-d25c2c37eb82aaca.rmeta

`

the Cargo.toml is as follow； I modity the ink = { path = "/Volumes/E/project/github.com/paritytech/ink/crates/ink", default-features = false };
`
[package]
name = "trait-incrementer"
version = "4.0.0"
authors = ["Parity Technologies [email protected]"]
edition = "2021"
publish = false

[dependencies]
ink = { path = "/Volumes/E/project/github.com/paritytech/ink/crates/ink", default-features = false }
#ink = { path = "../../../../crates/ink", default-features = false }
`
So how can i build this contract。 @cmichi thanks

broken link

There's a broken link on the use.ink website.

At https://use.ink/examples/smart-contracts if we click on view example for Cross-contract calls we end up with 404

`ink-examples/set_code_hash` e2e failing

The e2e test for the set_code_hash example is failing.

When I run the e2e tests with cargo test --features e2e-tests I get the following error:

thread 'incrementer::e2e_tests::set_code_works' panicked at 'error on call `sign_and_submit_then_watch_default`: Encode(Error { context: Context { path: LinkedList(Some(Inner { item: Location { inner: Field("determinism") }, prev: LinkedList(None) })) }, kind: CannotFindVariant { name: "Deterministic", expected: 80 } })', /Users/peterwhite/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ink_e2e-4.2.0/src/xts.rs:318:17
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
test incrementer::e2e_tests::set_code_works ... FAILED

It is panicking at the following lines of code:

            // When
            let new_code_hash = client
                .upload("updated_incrementer", &ink_e2e::alice(), None)
                .await
                .expect("uploading `updated_incrementer` failed")
                .code_hash;

• Cargo contract version: cargo-contract-contract 2.2.1-unknown-aarch64-apple-darwin
• ink! version: 4.2.0
  -rustc tried with:
  • stable 1.69.0
  • nightly nightly-2023-03-14

Use checked arithmetic

Due to use-ink/cargo-contract#1190 we now need to update examples to use checked arithmetic operations

psp22-extension and rand-extension examples not working after deploying contracts

Steps

1. cargo contract build
2. Deploy it here https://contracts-ui.substrate.io/instantiate
3. Getting below error

CI: Display test coverage of each example

A question that developers writing ink! contracts regularly ask is: How can I see the test coverage?

We should add a CI stage that outputs the test coverage of each example.

CI: add job for comparing contracts sizes

We need some job to demonstrate effect on contract sizes, like it's done in this job in ink-waterfall, which provides its results in a table like this.

Getting StorageDepositLimitExhausted when uploading dns contract to https://contracts-ui.substrate.io/instantiate UI

UI : https://contracts-ui.substrate.io/instantiate
Error :

StorageDepositLimitExhausted
More storage was created than allowed by the storage deposit limit.

Example contract - https://github.com/paritytech/ink-examples/tree/main/dns