56 lines
2.1 KiB
TypeScript
56 lines
2.1 KiB
TypeScript
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import type { PaginationCursor } from '../types/query-types.js';
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import type { Signer } from '../types/signer.js';
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import type { EventsFilter, EventsQueryDescriptor, EventsQueryMessage } from '../types/events-types.js';
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import { AbstractMessage } from '../core/abstract-message.js';
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import { Events } from '../utils/events.js';
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import { Message } from '../core/message.js';
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import { removeUndefinedProperties } from '../utils/object.js';
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import { Time } from '../utils/time.js';
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import { DwnInterfaceName, DwnMethodName } from '../enums/dwn-interface-method.js';
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import { validateProtocolUrlNormalized, validateSchemaUrlNormalized } from '../utils/url.js';
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export type EventsQueryOptions = {
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signer: Signer;
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filters: EventsFilter[];
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cursor?: PaginationCursor;
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messageTimestamp?: string;
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};
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export class EventsQuery extends AbstractMessage<EventsQueryMessage>{
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public static async parse(message: EventsQueryMessage): Promise<EventsQuery> {
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Message.validateJsonSchema(message);
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await Message.validateSignatureStructure(message.authorization.signature, message.descriptor);
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for (const filter of message.descriptor.filters) {
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if ('protocol' in filter && filter.protocol !== undefined) {
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validateProtocolUrlNormalized(filter.protocol);
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}
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if ('schema' in filter && filter.schema !== undefined) {
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validateSchemaUrlNormalized(filter.schema);
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}
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}
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return new EventsQuery(message);
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}
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public static async create(options: EventsQueryOptions): Promise<EventsQuery> {
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const descriptor: EventsQueryDescriptor = {
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interface : DwnInterfaceName.Events,
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method : DwnMethodName.Query,
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filters : Events.normalizeFilters(options.filters),
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messageTimestamp : options.messageTimestamp ?? Time.getCurrentTimestamp(),
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cursor : options.cursor,
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};
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removeUndefinedProperties(descriptor);
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const authorization = await Message.createAuthorization({ descriptor, signer: options.signer });
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const message = { descriptor, authorization };
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Message.validateJsonSchema(message);
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return new EventsQuery(message);
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}
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}
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