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HierarchiesClientReadOnly

@iota/hierarchies API documentation

Class: HierarchiesClientReadOnly

A client to interact with Hierarchies objects on the IOTA ledger.

This client is used for read-only operations, meaning it does not require an account or signing capabilities. For write operations, use HierarchiesClient.

Methods​

packageId()​

packageId(): string

Retrieves the package ID of the used hierarchies package.

Returns

A string representing the package ID.

Returns​

string

iotaClient()​

iotaClient(): IotaClient

Retrieves the underlying IOTA client used by this client.

Returns

The IotaClient instance.

Returns​

IotaClient

isAttester()​

isAttester(federation_id, user_id): Promise<boolean>

Checks if a user has attestation accreditation.

Arguments

  • federation_id: The [ObjectID] of the federation.
  • user_id: The [ObjectID] of the user.

Returns

A Result containing a boolean indicating if the user has attestation accreditation or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with a boolean.
  • On failure, the promise rejects with an Error.
try {
  const isAttester = await client.isAttester(federationId, userId);
  console.log("Is attester:", isAttester);
} catch (error) {
  console.error("Failed to check attester status:", error);
}

Parameters​

federation_id​

string

user_id​

string

Returns​

Promise<boolean>

isAccreditor()​

isAccreditor(federation_id, user_id): Promise<boolean>

Checks if a user has accreditations to accredit.

Arguments

  • federation_id: The [ObjectID] of the federation.
  • user_id: The [ObjectID] of the user.

Returns

A Result containing a boolean indicating if the user has accreditations to accredit or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with a boolean.
  • On failure, the promise rejects with an Error.
try {
  const isAccreditor = await client.isAccreditor(federationId, userId);
  console.log("Is accreditor:", isAccreditor);
} catch (error) {
  console.error("Failed to check accreditor status:", error);
}

Parameters​

federation_id​

string

user_id​

string

Returns​

Promise<boolean>

getProperties()​

getProperties(federation_id): Promise<PropertyName[]>

Retrieves all property names registered in the federation.

Arguments

  • federation_id: The [ObjectID] of the federation.

Returns

A Result containing the list of property names or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with WasmProperty[].
  • On failure, the promise rejects with an Error.
try {
  const properties = await client.getProperties(federationId);
  console.log("Properties:", properties);
} catch (error) {
  console.error("Failed to get properties:", error);
}

Parameters​

federation_id​

string

Returns​

Promise<PropertyName[]>

packageHistory()​

packageHistory(): string[]

Retrieves the history of hierarchies package IDs.

Returns

An array of strings representing the package history.

Returns​

string[]

isRootAuthority()​

isRootAuthority(federation_id, user_id): Promise<boolean>

Check if root authority is in the federation.

Arguments

  • federation_id: The [ObjectID] of the federation.
  • user_id: The [ObjectID] of the user.

Returns

A Result containing a boolean indicating if the user is a root authority or an [Error].

Parameters​

federation_id​

string

user_id​

string

Returns​

Promise<boolean>

validateProperty()​

validateProperty(federation_id, user_id, property_name, property_value): Promise<boolean>

Validates a property for a specific user.

Arguments

  • federation_id: The [ObjectID] of the federation.
  • user_id: The [ObjectID] of the user.
  • property_name: The name of the property to validate.
  • property_value: The value of the property to validate.

Returns

A Result containing a boolean indicating if the property is valid or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with a boolean.
  • On failure, the promise rejects with an Error.
try {
  const isValid = await client.validateProperty(federationId, userId, propertyName, propertyValue);
  console.log("Is property valid:", isValid);
} catch (error) {
  console.error("Failed to validate property:", error);
}

Parameters​

federation_id​

string

user_id​

string

property_name​

PropertyName

property_value​

PropertyValue

Returns​

Promise<boolean>

createWithPkgId()​

static createWithPkgId(iota_client, iota_hierarchies_pkg_id): Promise<HierarchiesClientReadOnly>

Creates a new instance of HierarchiesClientReadOnly using a specific package ID.

Arguments

  • iota_client - The IOTA client used for interacting with the ledger.
  • iota_hierarchies_pkg_id - The hierarchies package ID.

Returns

A new HierarchiesClientReadOnly instance.

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with WasmHierarchiesClientReadOnly.
  • On failure, the promise rejects with an Error.
try {
  const client = await HierarchiesClientReadOnly.createWithPkgId(iotaClient, pkgId);
  console.log("Client created:", client);
} catch (error) {
  console.error("Failed to create client:", error);
}

Parameters​

iota_client​

IotaClient

iota_hierarchies_pkg_id​

string

Returns​

Promise<HierarchiesClientReadOnly>

validateProperties()​

validateProperties(federation_id, entity_id, properties): Promise<boolean>

Validates multiple properties for a specific user.

Arguments

  • federation_id: The [ObjectID] of the federation.
  • user_id: The [ObjectID] of the user.
  • properties: The properties to validate.

Returns

A Result containing a boolean indicating if the properties are valid or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with a boolean.
  • On failure, the promise rejects with an Error.
try {
  const areValid = await client.validateProperties(federationId, userId, properties);
  console.log("Are properties valid:", areValid);
} catch (error) {
  console.error("Failed to validate properties:", error);
}

Parameters​

federation_id​

string

entity_id​

string

properties​

Map<any, any>

Returns​

Promise<boolean>

getFederationById()​

getFederationById(federation_id): Promise<Federation>

Retrieves a federation by its ID.

Arguments

  • federation_id: The [ObjectID] of the federation.

Returns

A Result containing the [Federation] object or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with WasmFederation.
  • On failure, the promise rejects with an Error.
try {
  const federation = await client.getFederationById(federationId);
  console.log("Federation:", federation);
} catch (error) {
  console.error("Failed to get federation:", error);
}

Parameters​

federation_id​

string

Returns​

Promise<Federation>

isPropertyInFederation()​

isPropertyInFederation(federation_id, property_name): Promise<boolean>

Checks if a property is registered in the federation.

Arguments

  • federation_id: The [ObjectID] of the federation.
  • property_name: The name of the property to check.

Returns

A Result containing a boolean indicating if the property is registered or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with a boolean.
  • On failure, the promise rejects with an Error.
try {
  const isRegistered = await client.isPropertyInFederation(federationId, propertyName);
  console.log("Is property registered:", isRegistered);
} catch (error) {
  console.error("Failed to check property registration:", error);
}

Parameters​

federation_id​

string

property_name​

PropertyName

Returns​

Promise<boolean>

getAccreditationsToAttest()​

getAccreditationsToAttest(federation_id, user_id): Promise<Accreditations>

Retrieves attestation accreditations for a specific user.

Arguments

  • federation_id: The [ObjectID] of the federation.
  • user_id: The [ObjectID] of the user.

Returns

A Result containing the attestation accreditations or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with WasmAccreditations.
  • On failure, the promise rejects with an Error.
try {
  const accreditations = await client.getAccreditationsToAttest(federationId, userId);
  console.log("Accreditations:", accreditations);
} catch (error) {
  console.error("Failed to get accreditations:", error);
}

Parameters​

federation_id​

string

user_id​

string

Returns​

Promise<Accreditations>

getAccreditationsToAccredit()​

getAccreditationsToAccredit(federation_id, user_id): Promise<Accreditations>

Retrieves accreditations to accredit for a specific user.

Arguments

  • federation_id: The [ObjectID] of the federation.
  • user_id: The [ObjectID] of the user.

Returns

A Result containing the accreditations to accredit for the user or an [Error].

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with WasmAccreditations.
  • On failure, the promise rejects with an Error.
try {
  const accreditations = await client.getAccreditationsToAccredit(federationId, userId);
  console.log("Accreditations:", accreditations);
} catch (error) {
  console.error("Failed to get accreditations:", error);
}

Parameters​

federation_id​

string

user_id​

string

Returns​

Promise<Accreditations>

create()​

static create(iota_client): Promise<HierarchiesClientReadOnly>

Creates a new instance of HierarchiesClientReadOnly.

Arguments

  • iota_client - The IOTA client used for interacting with the ledger.

Returns

A new HierarchiesClientReadOnly instance.

TypeScript Usage

This method returns a Promise in TypeScript.

  • On success, the promise resolves with WasmHierarchiesClientReadOnly.
  • On failure, the promise rejects with an Error.
try {
  const client = await HierarchiesClientReadOnly.create(iotaClient);
  console.log("Client created:", client);
} catch (error) {
  console.error("Failed to create client:", error);
}

Parameters​

iota_client​

IotaClient

Returns​

Promise<HierarchiesClientReadOnly>

network()​

network(): string

Retrieves the network identifier associated with this client.

Returns

A string representing the network identifier.

Returns​

string

chainId()​

chainId(): string

Retrieves the chain ID associated with this client.

Returns

A string representing the chain ID.

Returns​

string