50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
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var EventData = require('./eventData');
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var results = require('./results');
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const expectedVersion = {
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any: -2,
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noStream: -1,
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emptyStream: -1
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};
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const positions = {
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start: new results.Position(0, 0),
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end: new results.Position(-1, -1)
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};
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/**
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* @param {string} eventId
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* @param {object} data
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* @param {object} [metadata]
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* @param {string} [type]
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* @returns {EventData}
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*/
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function jsonEventDataFactory(eventId, data, metadata, type) {
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if (!data || typeof data !== 'object') throw new TypeError("data must be an object.");
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var d = new Buffer(JSON.stringify(data));
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var m = metadata ? new Buffer(JSON.stringify(metadata)) : null;
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return new EventData(eventId, type || data.constructor.name, true, d, m);
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}
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/**
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* @param {string} eventId
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* @param {string} type
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* @param {boolean} isJson
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* @param {Buffer} data
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* @param {Buffer} [metadata]
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* @returns {EventData}
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*/
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function eventDataFactory(eventId, type, isJson, data, metadata) {
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return new EventData(eventId, type, isJson, data, metadata);
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}
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module.exports.EventStoreConnection = require('./eventStoreConnection');
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module.exports.UserCredentials = require('./systemData/userCredentials');
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module.exports.EventData = EventData;
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module.exports.expectedVersion = expectedVersion;
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module.exports.positions = positions;
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// Helper functions
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module.exports.createConnection = module.exports.EventStoreConnection.create;
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module.exports.createEventData = eventDataFactory;
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module.exports.createJsonEventData = jsonEventDataFactory;
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