Type definitions for creating and serializing metadata for smart contracts targeting Substrate's contracts pallet.

Example

# use contract_metadata::*;
# use semver::Version;
# use url::Url;
# use serde_json::{Map, Value};

let language = SourceLanguage::new(Language::Ink, Version::new(2, 1, 0));
let compiler = SourceCompiler::new(Compiler::RustC, Version::parse("1.46.0-nightly").unwrap());
let source = Source::new([0u8; 32], language, compiler);
let contract = Contract::builder()
.name("incrementer".to_string())
.version(Version::new(2, 1, 0))
.authors(vec!["Parity Technologies <admin@parity.io>".to_string()])
.description("increment a value".to_string())
.documentation(Url::parse("http:docs.rs/").unwrap())
.repository(Url::parse("http:github.com/paritytech/ink/").unwrap())
.homepage(Url::parse("http:example.com/").unwrap())
.license("Apache-2.0".to_string())
.build()
.unwrap();
// user defined raw json
let user_json: Map<String, Value> = Map::new();
let user = User::new(user_json);
// contract abi raw json generated by contract compilation
let abi_json: Map<String, Value> = Map::new();

let metadata = ContractMetadata::new(source, contract, Some(user), abi_json);

// serialize to json
let json = serde_json::to_value(&metadata).unwrap();