Struct sc_service::GenericChainSpec

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pub struct GenericChainSpec<G, E = Option<()>, EHF = ()> { /* private fields */ }
Expand description

A configuration of a chain. Can be used to build a genesis block.

The chain spec is generic over the native RuntimeGenesisConfig struct (G). It is also possible to parametrize chain spec over the extended host functions (EHF). It should be use if runtime is using the non-standard host function during genesis state creation.

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impl<G, E, EHF> ChainSpec<G, E, EHF>

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pub fn boot_nodes(&self) -> &[MultiaddrWithPeerId]

A list of bootnode addresses.

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pub fn name(&self) -> &str

Spec name.

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pub fn id(&self) -> &str

Spec id.

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pub fn telemetry_endpoints(&self) -> &Option<TelemetryEndpoints>

Telemetry endpoints (if any)

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pub fn protocol_id(&self) -> Option<&str>

Network protocol id.

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pub fn fork_id(&self) -> Option<&str>

Optional network fork identifier.

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pub fn properties(&self) -> Map<String, Value>

Additional loosely-typed properties of the chain.

Returns an empty JSON object if ‘properties’ not defined in config

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pub fn add_boot_node(&mut self, addr: MultiaddrWithPeerId)

Add a bootnode to the list.

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pub fn extensions(&self) -> &E

Returns a reference to the defined chain spec extensions.

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pub fn extensions_mut(&mut self) -> &mut E

Returns a mutable reference to the defined chain spec extensions.

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pub fn from_genesis<F>( name: &str, id: &str, chain_type: ChainType, constructor: F, boot_nodes: Vec<MultiaddrWithPeerId>, telemetry_endpoints: Option<TelemetryEndpoints>, protocol_id: Option<&str>, fork_id: Option<&str>, properties: Option<Map<String, Value>>, extensions: E, code: &[u8] ) -> ChainSpec<G, E, EHF>
where F: Fn() -> G + 'static + Send + Sync,

👎Deprecated: from_genesis is planned to be removed in May 2024. Use builder() instead.

Create hardcoded spec.

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pub fn builder(code: &[u8], extensions: E) -> ChainSpecBuilder<G, E, EHF>

Provides a ChainSpec builder.

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impl<G, E, EHF> ChainSpec<G, E, EHF>
where G: DeserializeOwned, E: DeserializeOwned,

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pub fn from_json_bytes( json: impl Into<Cow<'static, [u8]>> ) -> Result<ChainSpec<G, E, EHF>, String>

Parse json content into a ChainSpec

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pub fn from_json_file(path: PathBuf) -> Result<ChainSpec<G, E, EHF>, String>

Parse json file into a ChainSpec

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impl<G, E, EHF> ChainSpec<G, E, EHF>
where G: RuntimeGenesis, E: Serialize + Clone + 'static, EHF: HostFunctions,

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pub fn as_json(&self, raw: bool) -> Result<String, String>

Dump the chain specification to JSON string.

Trait Implementations§

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impl<G, E, EHF> BuildStorage for ChainSpec<G, E, EHF>
where G: RuntimeGenesis, EHF: HostFunctions,

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fn assimilate_storage(&self, storage: &mut Storage) -> Result<(), String>

Assimilate the storage for this module into pre-existing overlays.
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fn build_storage(&self) -> Result<Storage, String>

Build the storage out of this builder.
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impl<G, E, EHF> ChainSpec for ChainSpec<G, E, EHF>
where G: RuntimeGenesis + 'static, E: GetExtension + Serialize + Clone + Send + Sync + 'static, EHF: HostFunctions,

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fn boot_nodes(&self) -> &[MultiaddrWithPeerId]

A list of bootnode addresses.
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fn name(&self) -> &str

Spec name.
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fn id(&self) -> &str

Spec id.
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fn chain_type(&self) -> ChainType

Type of the chain.
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fn telemetry_endpoints(&self) -> &Option<TelemetryEndpoints>

Telemetry endpoints (if any)
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fn protocol_id(&self) -> Option<&str>

Network protocol id.
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fn fork_id(&self) -> Option<&str>

Optional network fork identifier. None by default.
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fn properties(&self) -> Map<String, Value>

Additional loosely-typed properties of the chain. Read more
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fn add_boot_node(&mut self, addr: MultiaddrWithPeerId)

Add a bootnode to the list.
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fn extensions(&self) -> &dyn GetExtension

Returns a reference to the defined chain spec extensions.
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fn extensions_mut(&mut self) -> &mut dyn GetExtension

Returns a mutable reference to the defined chain spec extensions.
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fn as_json(&self, raw: bool) -> Result<String, String>

Return spec as JSON.
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fn as_storage_builder(&self) -> &dyn BuildStorage

Return StorageBuilder for this spec.
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fn cloned_box(&self) -> Box<dyn ChainSpec>

Returns a cloned Box<dyn ChainSpec>.
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fn set_storage(&mut self, storage: Storage)

Set the storage that should be used by this chain spec. Read more
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fn code_substitutes(&self) -> BTreeMap<String, Vec<u8>>

Returns code substitutes that should be used for the on chain wasm.
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impl<G, E, EHF> Clone for ChainSpec<G, E, EHF>
where E: Clone,

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fn clone(&self) -> ChainSpec<G, E, EHF>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl<G, E = Option<()>, EHF = ()> !RefUnwindSafe for ChainSpec<G, E, EHF>

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impl<G, E, EHF> Send for ChainSpec<G, E, EHF>
where E: Send, EHF: Send,

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impl<G, E, EHF> Sync for ChainSpec<G, E, EHF>
where E: Sync, EHF: Sync,

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impl<G, E, EHF> Unpin for ChainSpec<G, E, EHF>
where E: Unpin, EHF: Unpin,

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impl<G, E = Option<()>, EHF = ()> !UnwindSafe for ChainSpec<G, E, EHF>

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