Interface: LinkSchema<TSchema>

Schema type for link validation.

Extends

AnySchema<TSchema>

Type Parameters

Type Parameter	Default type
`TSchema`	`any`

Properties

Property	Modifier	Type	Description	Inherited from
`_flags`	`public`	`Record`<`string`, `any`>	Flags of current schema.	`AnySchema`.`_flags`
`~standard`	`readonly`	`Props`<`TSchema`, `TSchema`>	The Standard Schema properties.	`AnySchema`.`~standard`
`$`	`public`	`LinkSchema`<`TSchema`>	Starts a ruleset in order to apply multiple rule options. The set ends when `rule()`, `keep()`, `message()`, or `warn()` is called.	`AnySchema`.`$`
`$_knex`	`public`	`any`	-	`AnySchema`.`$_knex`
`$_super`	`public`	`Schema`	Parent schema object.	`AnySchema`.`$_super`
`$_terms`	`public`	`Record`<`string`, `any`>	Terms of current schema.	`SchemaInternals`.`$_terms`
`ruleset`	`public`	`LinkSchema`<`TSchema`>	Starts a ruleset in order to apply multiple rule options. The set ends when `rule()`, `keep()`, `message()`, or `warn()` is called.	`AnySchema`.`ruleset`
`type?`	`public`	`string`	-	`AnySchema`.`type`

Methods

$_addRule()

$_addRule(rule: string | AddRuleOptions): Schema;

Adds a rule to current validation schema.

Parameters

Parameter	Type
`rule`	`string` \| `AddRuleOptions`

Returns

Schema

Inherited from

AnySchema.$_addRule

$_compile()

$_compile(schema: SchemaLike, options?: CompileOptions): Schema;

Internally compiles schema.

Parameters

Parameter	Type
`schema`	`SchemaLike`
`options?`	`CompileOptions`

Returns

Schema

Inherited from

AnySchema.$_compile

$_createError()

$_createError(
   code: string,
   value: any,
   context: ValidationContext,
   state: State,
   prefs: ValidationOptions,
   options?: CreateErrorOptions): Err;

Creates a joi error object.

Parameters

Parameter	Type
`code`	`string`
`value`	`any`
`context`	`ValidationContext`
`state`	`State`
`prefs`	`ValidationOptions`
`options?`	`CreateErrorOptions`

Returns

Err

Inherited from

SchemaInternals.$_createError

$_getFlag()

$_getFlag(name: string): any;

Get value from given flag.

Parameters

Parameter	Type
`name`	`string`

Returns

any

Inherited from

SchemaInternals.$_getFlag

$_getRule()

$_getRule(name: string): GetRuleOptions | undefined;

Retrieve some rule configuration.

Parameters

Parameter	Type
`name`	`string`

Returns

GetRuleOptions | undefined

Inherited from

AnySchema.$_getRule

$_mapLabels()

$_mapLabels(path: string | string[]): string;

Parameters

Parameter	Type
`path`	`string` \| `string`[]

Returns

string

Inherited from

AnySchema.$_mapLabels

$_match()

$_match(
   value: any,
   state: State,
   prefs: ValidationOptions): boolean;

Returns true if validations runs fine on given value.

Parameters

Parameter	Type
`value`	`any`
`state`	`State`
`prefs`	`ValidationOptions`

Returns

boolean

Inherited from

SchemaInternals.$_match

$_modify()

$_modify(options?: ModifyOptions): Schema;

Parameters

Parameter	Type
`options?`	`ModifyOptions`

Returns

Schema

Inherited from

AnySchema.$_modify

$_mutateRebuild()

$_mutateRebuild(): this;

Resets current schema.

Returns

this

Inherited from

AnySchema.$_mutateRebuild

$_mutateRegister()

$_mutateRegister(schema: Schema, options?: MutateRegisterOptions): void;

Parameters

Parameter	Type
`schema`	`Schema`
`options?`	`MutateRegisterOptions`

Returns

void

Inherited from

SchemaInternals.$_mutateRegister

$_property()

$_property(name: string): any;

Get value from given property.

Parameters

Parameter	Type
`name`	`string`

Returns

any

Inherited from

SchemaInternals.$_property

$_reach()

$_reach(path: string[]): Schema;

Get schema at given path.

Parameters

Parameter	Type
`path`	`string`[]

Returns

Schema

Inherited from

AnySchema.$_reach

$_rootReferences()

$_rootReferences(): any;

Get current schema root references.

Returns

any

Inherited from

SchemaInternals.$_rootReferences

$_setFlag()

$_setFlag(
   flag: string,
   value: any,
   options?: SetFlagOptions): void;

Set flag to given value.

Parameters

Parameter	Type
`flag`	`string`
`value`	`any`
`options?`	`SetFlagOptions`

Returns

void

Inherited from

SchemaInternals.$_setFlag

$_validate()

$_validate(
   value: any,
   state: State,
   prefs: ValidationOptions): ValidationResult;

Runs internal validations against given value.

Parameters

Parameter	Type
`value`	`any`
`state`	`State`
`prefs`	`ValidationOptions`

Returns

ValidationResult

Inherited from

SchemaInternals.$_validate

allow()

allow(...values: any[]): this;

Parameters

Parameter	Type
...`values`	`any`[]

Returns

this

Inherited from

AnySchema.allow

alter()

alter(targets: Record<string, (schema: this) => Schema>): this;

Parameters

Parameter	Type
`targets`	`Record`<`string`, (`schema`: `this`) => `Schema`>

Returns

this

Inherited from

AnySchema.alter

artifact()

artifact(id: any): this;

Parameters

Parameter	Type
`id`	`any`

Returns

this

Inherited from

AnySchema.artifact

bind()

bind(): this;

Returns

this

Inherited from

AnySchema.bind

cache()

cache(cache?: Cache): this;

Parameters

Parameter	Type
`cache?`	`Cache`

Returns

this

Inherited from

AnySchema.cache

cast()

cast(to: "string" | "number" | "object" | "map" | "set"): this;

Parameters

Parameter	Type
`to`	`"string"` \| `"number"` \| `"object"` \| `"map"` \| `"set"`

Returns

this

Inherited from

AnySchema.cast

concat()

concat(schema: Schema<any>): this;

Same as any.concat() but the schema is merged after the link is resolved which allows merging with schemas of the same type as the resolved link. Will throw an exception during validation if the merged types are not compatible.

Parameters

Parameter	Type
`schema`	`Schema`<`any`>

Returns

this

Overrides

AnySchema.concat

custom()

custom(fn: CustomValidator, description?: string): this;

Parameters

Parameter	Type
`fn`	`CustomValidator`
`description?`	`string`

Returns

this

Inherited from

AnySchema.custom

db()

db(connection: any): this;

Alias for .knex(). Sets the database connection for database validation rules.

Parameters

Parameter	Type	Description
`connection`	`any`	A Knex instance, transaction, or connection configuration

Returns

this

Inherited from

AnySchema.db

default()

default(value?: DefaultableValue): this;

Sets a default value if the original value is undefined.

Parameters

Parameter	Type	Description
`value?`	`DefaultableValue`	The default value. Can be: - A literal value (string, number, object, etc.) - A reference to another schema value - A function that returns the default value with signature `(parent, helpers) => value` - `parent` - A clone of the object containing the value being validated - `helpers` - Validation helper functions for custom validation logic

Returns

this

Example

typescript

const schema = joi.string().default("hello world");
const schemaWithFunction = joi
  .number()
  .default((parent, helpers) => parent.someOtherField * 2);

Inherited from

AnySchema.default

describe()

describe(): Description;

Returns a plain object representing the schema's rules and properties

Returns

Description

Inherited from

AnySchema.describe

description()

description(desc: string): this;

Parameters

Parameter	Type
`desc`	`string`

Returns

this

Inherited from

AnySchema.description

disallow()

disallow(...values: any[]): this;

Parameters

Parameter	Type
...`values`	`any`[]

Returns

this

Inherited from

AnySchema.disallow

empty()

empty(schema?: SchemaLike): this;

Parameters

Parameter	Type
`schema?`	`SchemaLike`

Returns

this

Inherited from

AnySchema.empty

equal()

equal(...values: any[]): this;

Parameters

Parameter	Type
...`values`	`any`[]

Returns

this

Inherited from

AnySchema.equal

error()

error(err:
  | Error
  | ValidationErrorFunction): this;

Parameters

Parameter	Type
`err`	\| `Error` \| `ValidationErrorFunction`

Returns

this

Inherited from

AnySchema.error

example()

example(value: any, options?: {
  override: boolean;
}): this;

Parameters

Parameter	Type
`value`	`any`
`options?`	{ `override`: `boolean`; }
`options.override?`	`boolean`

Returns

this

Inherited from

AnySchema.example

exist()

exist(): this;

Returns

this

Inherited from

AnySchema.exist

existsInDb()

existsInDb(
   table: string | Reference,
   column: string | Reference,
   options?: DbValidationOptions): this;

Validates that the value exists in the specified database table and column. Requires .knex() or .db() to be called first to set the database connection.

Parameters

Parameter	Type	Description
`table`	`string` \| `Reference`	The database table name (can be a Joi reference)
`column`	`string` \| `Reference`	The column name to check (can be a Joi reference)
`options?`	`DbValidationOptions`	Optional configuration: - `caseInsensitive`: Perform case-insensitive comparison (default: false) - `filter`: Async function to add additional WHERE clauses to the query

Returns

this

Example

typescript

const schema = joi.object({
  country_id: joi.number().knex(db).existsInDb("countries", "id"),
  category: joi.string().knex(db).existsInDb("categories", "name", {
    caseInsensitive: true,
  }),
});

Inherited from

AnySchema.existsInDb

external()

external(method: ExternalValidationFunction, description?: string): this;

Parameters

Parameter	Type
`method`	`ExternalValidationFunction`
`description?`	`string`

Returns

this

Inherited from

AnySchema.external

extract()

extract(path: string | string[]): Schema;

Returns a sub-schema based on a path of object keys or schema ids.

Parameters

Parameter	Type	Description
`path`	`string` \| `string`[]	a dot `.` separated path string or a pre-split array of path keys. The keys must match the sub-schema id or object key (if no id was explicitly set).

Returns

Schema

Inherited from

AnySchema.extract

failover()

failover(value: any): this;

Parameters

Parameter	Type
`value`	`any`

Returns

this

Inherited from

AnySchema.failover

forbidden()

forbidden(): this;

Returns

this

Inherited from

AnySchema.forbidden

fork()

fork(key: string | string[] | string[][], adjuster: SchemaFunction): this;

Parameters

Parameter	Type
`key`	`string` \| `string`[] \| `string`[][]
`adjuster`	`SchemaFunction`

Returns

this

Inherited from

AnySchema.fork

id()

id(name?: string): this;

Parameters

Parameter	Type
`name?`	`string`

Returns

this

Inherited from

AnySchema.id

invalid()

invalid(...values: any[]): this;

Parameters

Parameter	Type
...`values`	`any`[]

Returns

this

Inherited from

AnySchema.invalid

isAsync()

isAsync(): boolean;

Returns a boolean indicating whether this schema contains a rule that requires asynchronous validation.

Returns

boolean

Inherited from

AnySchema.isAsync

keep()

keep(): this;

Returns

this

Inherited from

AnySchema.keep

knex()

knex(connection: any): this;

Sets the database connection for database validation rules. This must be called before using .uniqueInDb() or .existsInDb().

Parameters

Parameter	Type	Description
`connection`	`any`	A Knex instance, transaction, or connection configuration

Returns

this

Example

typescript

import knex from 'knex'
const db = knex({ client: 'pg', connection: {...} })
const schema = joi.string().knex(db).uniqueInDb('users', 'email')

Inherited from

AnySchema.knex

label()

label(name: string): this;

Parameters

Parameter	Type
`name`	`string`

Returns

this

Inherited from

AnySchema.label

message()

message(message: string): this;

Parameters

Parameter	Type
`message`	`string`

Returns

this

Inherited from

AnySchema.message

messages()

messages(messages: LanguageMessages): this;

Parameters

Parameter	Type
`messages`	`LanguageMessages`

Returns

this

Inherited from

AnySchema.messages

meta()

meta(meta: object): this;

Parameters

Parameter	Type
`meta`	`object`

Returns

this

Inherited from

AnySchema.meta

not()

not(...values: any[]): this;

Parameters

Parameter	Type
...`values`	`any`[]

Returns

this

Inherited from

AnySchema.not

note()

note(...notes: string[]): this;

Parameters

Parameter	Type
...`notes`	`string`[]

Returns

this

Inherited from

AnySchema.note

only()

only(): this;

Returns

this

Inherited from

AnySchema.only

optional()

optional(): this;

Returns

this

Inherited from

AnySchema.optional

options()

options(options: ValidationOptions): this;

Parameters

Parameter	Type
`options`	`ValidationOptions`

Returns

this

Inherited from

AnySchema.options

preferences()

preferences(options: ValidationOptions): this;

Parameters

Parameter	Type
`options`	`ValidationOptions`

Returns

this

Inherited from

AnySchema.preferences

prefs()

prefs(options: ValidationOptions): this;

Parameters

Parameter	Type
`options`	`ValidationOptions`

Returns

this

Inherited from

AnySchema.prefs

presence()

presence(mode: PresenceMode): this;

Parameters

Parameter	Type
`mode`	`PresenceMode`

Returns

this

Inherited from

AnySchema.presence

raw()

raw(enabled?: boolean): this;

Parameters

Parameter	Type
`enabled?`	`boolean`

Returns

this

Inherited from

AnySchema.raw

ref()

ref(ref: string): this;

Initializes the schema after constructions for cases where the schema has to be constructed first and then initialized. If ref was not passed to the constructor, link.ref() must be called prior to usage.

Parameters

Parameter	Type
`ref`	`string`

Returns

this

required()

required(): this;

Returns

this

Inherited from

AnySchema.required

rule()

rule(options: RuleOptions): this;

Parameters

Parameter	Type
`options`	`RuleOptions`

Returns

this

Inherited from

AnySchema.rule

shared()

shared(ref: Schema): this;

Parameters

Parameter	Type
`ref`	`Schema`

Returns

this

Inherited from

AnySchema.shared

strict()

strict(isStrict?: boolean): this;

Parameters

Parameter	Type
`isStrict?`	`boolean`

Returns

this

Inherited from

AnySchema.strict

strip()

strip(enabled?: boolean): this;

Parameters

Parameter	Type
`enabled?`	`boolean`

Returns

this

Inherited from

AnySchema.strip

tag()

tag(...tags: string[]): this;

Parameters

Parameter	Type
...`tags`	`string`[]

Returns

this

Inherited from

AnySchema.tag

tailor()

tailor(targets: string | string[]): Schema;

Applies any assigned target alterations to a copy of the schema that were applied via any.alter().

Parameters

Parameter	Type
`targets`	`string` \| `string`[]

Returns

Schema

Inherited from

AnySchema.tailor

uniqueInDb()

uniqueInDb(
   table: string | Reference,
   column: string | Reference,
   options?: DbValidationOptions): this;

Validates that the value is unique in the specified database table and column. Requires .knex() or .db() to be called first to set the database connection.

Parameters

Parameter	Type	Description
`table`	`string` \| `Reference`	The database table name (can be a Joi reference)
`column`	`string` \| `Reference`	The column name to check (can be a Joi reference)
`options?`	`DbValidationOptions`	Optional configuration: - `caseInsensitive`: Perform case-insensitive comparison (default: false) - `filter`: Async function to add additional WHERE clauses to the query

Returns

this

Example

typescript

const schema = joi.object({
  email: joi.string().email().knex(db).uniqueInDb("users", "email"),
  username: joi
    .string()
    .knex(db)
    .uniqueInDb("users", "username", {
      caseInsensitive: true,
      filter: async (query) => query.where("tenant_id", tenantId),
    }),
});

Inherited from

AnySchema.uniqueInDb

unit()

unit(name: string): this;

Parameters

Parameter	Type
`name`	`string`

Returns

this

Inherited from

AnySchema.unit

valid()

valid(...values: any[]): this;

Parameters

Parameter	Type
...`values`	`any`[]

Returns

this

Inherited from

AnySchema.valid

validate()

validate(value: any, options?: ValidationOptions): ValidationResult<TSchema>;

Validates a value using the schema and options.

Parameters

Parameter	Type
`value`	`any`
`options?`	`ValidationOptions`

Returns

ValidationResult<TSchema>

Inherited from

AnySchema.validate

validateAsync()

validateAsync<TOpts>(value: any, options?: TOpts): Promise<TOpts extends
  | {
  artifacts: true;
}
  | {
  warnings: true;
} ? {
  value: TSchema;
} & TOpts<TOpts> extends {
  artifacts: true;
} ? {
  artifacts: Map<any, string[][]>;
} : {
} & TOpts<TOpts> extends {
  warnings: true;
} ? {
  warning: ValidationWarning;
} : {
} : TSchema>;

Validates a value using the schema and options.

Type Parameters

Type Parameter
`TOpts` extends `AsyncValidationOptions`

Parameters

Parameter	Type
`value`	`any`
`options?`	`TOpts`

Returns

Promise<TOpts extends | { artifacts: true; } | { warnings: true; } ? { value: TSchema; } & TOpts<TOpts> extends { artifacts: true; } ? { artifacts: Map<any, string[][]>; } : { } & TOpts<TOpts> extends { warnings: true; } ? { warning: ValidationWarning; } : { } : TSchema>

Inherited from

AnySchema.validateAsync

warn()

warn(): this;

Returns

this

Inherited from

AnySchema.warn

warning()

warning(code: string, context: ValidationContext): this;

Parameters

Parameter	Type
`code`	`string`
`context`	`ValidationContext`

Returns

this

Inherited from

AnySchema.warning

when()

Call Signature

when(ref: string | Reference, options:
  | WhenOptions<any, any>
  | WhenOptions<any, any>[]): this;

Parameters

Parameter	Type
`ref`	`string` \| `Reference`
`options`	\| `WhenOptions`<`any`, `any`> \| `WhenOptions`<`any`, `any`>[]

Returns

this

Inherited from

AnySchema.when

Call Signature

when(ref: Schema, options: WhenSchemaOptions): this;

Parameters

Parameter	Type
`ref`	`Schema`
`options`	`WhenSchemaOptions`

Returns

this

Inherited from

AnySchema.when

Interfaces

Variables

Functions

Namespaces

Options

Classes

Interfaces

Variables

Functions

Interfaces

Interface: LinkSchema<TSchema> ​

Extends ​

Type Parameters ​

Properties ​

Methods ​

$_addRule() ​

Parameters ​

Returns ​

Inherited from ​

$_compile() ​

Parameters ​

Returns ​

Inherited from ​

$_createError() ​

Parameters ​

Returns ​

Inherited from ​

$_getFlag() ​

Parameters ​

Returns ​

Inherited from ​

$_getRule() ​

Parameters ​

Returns ​

Inherited from ​

$_mapLabels() ​

Parameters ​

Returns ​

Inherited from ​

$_match() ​

Parameters ​

Returns ​

Inherited from ​

$_modify() ​

Parameters ​

Returns ​

Inherited from ​

$_mutateRebuild() ​

Returns ​

Inherited from ​

$_mutateRegister() ​

Parameters ​

Returns ​

Inherited from ​

$_property() ​

Parameters ​

Returns ​

Inherited from ​

$_reach() ​

Parameters ​

Returns ​

Inherited from ​

$_rootReferences() ​

Returns ​

Inherited from ​

$_setFlag() ​

Parameters ​

Returns ​

Inherited from ​

$_validate() ​

Parameters ​

Returns ​

Inherited from ​

allow() ​

Parameters ​

Returns ​

Inherited from ​

alter() ​

Parameters ​

Returns ​

Interface: LinkSchema<TSchema>

Extends

Type Parameters

Properties

Methods

$_addRule()

Parameters

Returns

Inherited from

$_compile()

Parameters

Returns

Inherited from

$_createError()

Parameters

Returns

Inherited from

$_getFlag()

Parameters

Returns

Inherited from

$_getRule()

Parameters

Returns

Inherited from

$_mapLabels()

Parameters

Returns

Inherited from

$_match()

Parameters

Returns

Inherited from

$_modify()

Parameters

Returns

Inherited from

$_mutateRebuild()

Returns

Inherited from

$_mutateRegister()

Parameters

Returns

Inherited from

$_property()

Parameters

Returns

Inherited from

$_reach()

Parameters

Returns

Inherited from

$_rootReferences()

Returns

Inherited from

$_setFlag()

Parameters

Returns

Inherited from

$_validate()

Parameters

Returns

Inherited from

allow()

Parameters

Returns

Inherited from

alter()

Parameters

Returns

Inherited from

artifact()

Parameters

Returns

Inherited from

bind()

Returns

Inherited from

cache()

Parameters