class Fact

Language	Type name
.NET	Amazon.CDK.RegionInfo.Fact
Java	software.amazon.awscdk.regioninfo.Fact
Python	aws_cdk.region_info.Fact
TypeScript (source)	@aws-cdk/region-info » Fact

A database of regional information.

Properties

Name	Type	Description
static names	string[]	Returns the list of names of registered facts.
static regions	string[]

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static names

Type: string[]

Returns the list of names of registered facts.

All facts will be present in at least one region.

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static regions

Type: string[]

Methods

Name	Description
static definedFacts()	Return all pairs of (region, factName) that are defined.
static find(region, name)	Retrieves a fact from this Fact database.
static register(fact, allowReplacing?)	Registers a new fact in this Fact database.
static requireFact(region, name)	Retrieve a fact from the Fact database.
static unregister(region, name, value?)	Removes a fact from the database.

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static definedFacts()

public static definedFacts(): string[][]

Returns

• string[][]

Return all pairs of (region, factName) that are defined.

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static find(region, name)

public static find(region: string, name: string): string

Parameters

• region string — the name of the region (e.g: us-east-1).
• name string — the name of the fact being looked up (see the FactName class for details).

Returns

• string

Retrieves a fact from this Fact database.

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static register(fact, allowReplacing?)

public static register(fact: IFact, allowReplacing?: boolean): void

Parameters

• fact IFact — the new fact to be registered.
• allowReplacing boolean — whether new facts can replace existing facts or not.

Registers a new fact in this Fact database.

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static requireFact(region, name)

public static requireFact(region: string, name: string): string

Parameters

• region string — the name of the region (e.g: us-east-1).
• name string — the name of the fact being looked up (see the FactName class for details).

Returns

• string

Retrieve a fact from the Fact database.

(retrieval will fail if the specified region or fact name does not exist.)

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static unregister(region, name, value?)

public static unregister(region: string, name: string, value?: string): void

Parameters

• region string — the region for which the fact is to be removed.
• name string — the name of the fact to remove.
• value string — the value that should be removed (removal will fail if the value is specified, but does not match the current stored value).

Removes a fact from the database.