Class Context

Container for a context/contexts. Because contexts come from external code they must be thoroughly validated and then formed to comply with the type system.

Hierarchy

  • Context

Constructors

constructor

Properties

_context? _contextForKind _contexts _isMulti _isUser _privateAttributeReferences? _wasLegacy kind message? valid UserKind _contextForError _fromLegacyUser _fromMultiKindContext _fromSingleKindContext _getValueFromContext

Accessors

canonicalKey isMultiKind kinds kindsAndKeys legacy

Methods

getContexts key privateAttributes valueForKind fromLDContext toLDContext

Constructors

Private constructor

  • Contexts should be created using the static factory method Context.fromLDContext.

    Returns Context

Properties

Private Optional _context

_context?: any

Private _contextForKind

_contextForKind: any

Private _contexts

_contexts: any

Private _isMulti

_isMulti: any

Private _isUser

_isUser: any

Private Optional _privateAttributeReferences

_privateAttributeReferences?: any

Private _wasLegacy

_wasLegacy: any

Readonly kind

kind: string

Optional Readonly message

message?: string

Readonly valid

valid: boolean

Is this a valid context. If a valid context cannot be created, then this flag will be true. The validity of a context should be tested before it is used.

Static Readonly UserKind

UserKind: string

Static Private _contextForError

_contextForError: any

Static Private _fromLegacyUser

_fromLegacyUser: any

Static Private _fromMultiKindContext

_fromMultiKindContext: any

Static Private _fromSingleKindContext

_fromSingleKindContext: any

Static Private _getValueFromContext

_getValueFromContext: any

Accessors

canonicalKey

  • get canonicalKey(): string

  • Get the canonical key for this context.

    Returns string

isMultiKind

  • get isMultiKind(): boolean

  • True if this is a multi-kind context.

    Returns boolean

kinds

  • get kinds(): string[]

  • Get the kinds of this context.

    Returns string[]

kindsAndKeys

  • get kindsAndKeys(): Record<string, string>

  • Get the kinds, and their keys, for this context.

    Returns Record<string, string>

legacy

  • get legacy(): boolean

  • Returns boolean

Methods

getContexts

  • Get the underlying context objects from this context.

    This method is intended to be used in event generation.

    The returned objects should not be modified.

    Returns [string, LDContextCommon][]

key

  • Attempt to get a key for the specified kind.

    Parameters

    • Optional kind: string

      The kind to get a key for.

      Optional

    Returns undefined | string

    The key for the specified kind, or undefined.

privateAttributes

  • Get the attribute references.

    Parameters

    • kind: string

    Returns AttributeReference[]

valueForKind

  • Attempt to get a value for the given context kind using the given reference.

    Parameters

    • reference: AttributeReference

      The reference to the value to get.

    • Optional kind: string

      The kind of the context to get the value for.

      Optional

    Returns any

    a value or undefined if one is not found.

Static fromLDContext

  • Attempt to create a Context from an LDContext.

    Parameters

    • context: LDContext

      The input context to create a Context from.

    Returns Context

    a Context, if the context was not valid, then the returned contexts valid property will be false.

Static toLDContext

  • Creates a LDContext from a Context.

    Parameters

    Returns undefined | LDContext

    an LDContext if input was valid, otherwise undefined

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