Interface ServiceResolver

Read-only service resolver — the interface that factories and classes receive to pull in their own dependencies.

Since

1.2.0

interface ServiceResolver {
    has(token: ServiceToken<unknown>): boolean;
    resolve<T>(token: ServiceToken<T>): T;
    resolveAsync<T>(token: ServiceToken<T>): Promise<T>;
    resolveByTag(tag: string): unknown[];
    tryResolve<T>(token: ServiceToken<T>): undefined | T;
}

Implemented by

SynapseContext

Index

Methods

has resolve resolveAsync resolveByTag tryResolve

Methods

has

has(token): boolean
Check if a token has been registered.
Parameters
- token: ServiceToken<unknown>
Returns boolean
- Defined in src/context/types.ts:197

resolve

resolve<T>(token): T
Resolve a service synchronously.
Type Parameters
- T
Parameters
- token: ServiceToken<T>
Returns T
Throws
If no provider is registered for the token.
- Defined in src/context/types.ts:181

resolveAsync

resolveAsync<T>(token): Promise<T>
Resolve a service asynchronously (for async factory providers).
Type Parameters
- T
Parameters
- token: ServiceToken<T>
Returns Promise<T>
Throws
If no provider is registered for the token.
- Defined in src/context/types.ts:187

resolveByTag

resolveByTag(tag): unknown[]
Resolve all services whose registrations contain the given tag.
Parameters
- tag: string
Returns unknown[]
- Defined in src/context/types.ts:202

tryResolve

tryResolve<T>(token): undefined | T
Attempt to resolve; return undefined if the token is not registered.
Type Parameters
- T
Parameters
- token: ServiceToken<T>
Returns undefined | T
- Defined in src/context/types.ts:192