dtamind-components
Version:
Apps integration for Dtamind. Contain Nodes and Credentials.
141 lines • 6.45 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const mongodb_1 = require("mongodb");
const memory_1 = require("langchain/memory");
const messages_1 = require("@langchain/core/messages");
const utils_1 = require("../../../src/utils");
const Interface_1 = require("../../../src/Interface");
// TODO: Add ability to specify env variable and use singleton pattern (i.e initialize MongoDB on server and pass to component)
class MongoDB_Memory {
constructor() {
this.label = 'MongoDB Atlas Chat Memory';
this.name = 'MongoDBAtlasChatMemory';
this.version = 1.0;
this.type = 'MongoDBAtlasChatMemory';
this.icon = 'mongodb.svg';
this.category = 'Memory';
this.description = 'Stores the conversation in MongoDB Atlas';
this.baseClasses = [this.type, ...(0, utils_1.getBaseClasses)(memory_1.BufferMemory)];
this.credential = {
label: 'Connect Credential',
name: 'credential',
type: 'credential',
credentialNames: ['mongoDBUrlApi']
};
this.inputs = [
{
label: 'Database',
name: 'databaseName',
placeholder: '<DB_NAME>',
type: 'string'
},
{
label: 'Collection Name',
name: 'collectionName',
placeholder: '<COLLECTION_NAME>',
type: 'string'
},
{
label: 'Session Id',
name: 'sessionId',
type: 'string',
description: 'If not specified, a random id will be used. Learn <a target="_blank" href="https://docs.dtamindai.com/memory/long-term-memory#ui-and-embedded-chat">more</a>',
default: '',
additionalParams: true,
optional: true
},
{
label: 'Memory Key',
name: 'memoryKey',
type: 'string',
default: 'chat_history',
additionalParams: true
}
];
}
async init(nodeData, _, options) {
return initializeMongoDB(nodeData, options);
}
}
const initializeMongoDB = async (nodeData, options) => {
const databaseName = nodeData.inputs?.databaseName;
const collectionName = nodeData.inputs?.collectionName;
const memoryKey = nodeData.inputs?.memoryKey;
const sessionId = nodeData.inputs?.sessionId;
const credentialData = await (0, utils_1.getCredentialData)(nodeData.credential ?? '', options);
const mongoDBConnectUrl = (0, utils_1.getCredentialParam)('mongoDBConnectUrl', credentialData, nodeData);
const driverInfo = { name: 'Dtamind', version: (await (0, utils_1.getVersion)()).version };
const orgId = options.orgId;
return new BufferMemoryExtended({
memoryKey: memoryKey ?? 'chat_history',
sessionId,
orgId,
mongoConnection: {
databaseName,
collectionName,
mongoDBConnectUrl,
driverInfo
}
});
};
class BufferMemoryExtended extends Interface_1.DtamindMemory {
constructor(fields) {
super(fields);
this.sessionId = '';
this.orgId = '';
this.sessionId = fields.sessionId;
this.orgId = fields.orgId;
this.mongoConnection = fields.mongoConnection;
}
async getChatMessages(overrideSessionId = '', returnBaseMessages = false, prependMessages) {
const client = new mongodb_1.MongoClient(this.mongoConnection.mongoDBConnectUrl, { driverInfo: this.mongoConnection.driverInfo });
const collection = client.db(this.mongoConnection.databaseName).collection(this.mongoConnection.collectionName);
const id = overrideSessionId ? overrideSessionId : this.sessionId;
const document = await collection.findOne({ sessionId: id });
const messages = document?.messages || [];
const baseMessages = messages.map(messages_1.mapStoredMessageToChatMessage);
if (prependMessages?.length) {
baseMessages.unshift(...(await (0, utils_1.mapChatMessageToBaseMessage)(prependMessages, this.orgId)));
}
await client.close();
return returnBaseMessages ? baseMessages : (0, utils_1.convertBaseMessagetoIMessage)(baseMessages);
}
async addChatMessages(msgArray, overrideSessionId = '') {
const client = new mongodb_1.MongoClient(this.mongoConnection.mongoDBConnectUrl, { driverInfo: this.mongoConnection.driverInfo });
const collection = client.db(this.mongoConnection.databaseName).collection(this.mongoConnection.collectionName);
const id = overrideSessionId ? overrideSessionId : this.sessionId;
const input = msgArray.find((msg) => msg.type === 'userMessage');
const output = msgArray.find((msg) => msg.type === 'apiMessage');
if (input) {
const newInputMessage = new messages_1.HumanMessage(input.text);
const messageToAdd = [newInputMessage].map((msg) => ({
...msg.toDict(),
timestamp: new Date() // Add timestamp to the message
}));
await collection.updateOne({ sessionId: id }, {
$push: { messages: { $each: messageToAdd } }
}, { upsert: true });
}
if (output) {
const newOutputMessage = new messages_1.AIMessage(output.text);
const messageToAdd = [newOutputMessage].map((msg) => ({
...msg.toDict(),
timestamp: new Date() // Add timestamp to the message
}));
await collection.updateOne({ sessionId: id }, {
$push: { messages: { $each: messageToAdd } }
}, { upsert: true });
}
await client.close();
}
async clearChatMessages(overrideSessionId = '') {
const client = new mongodb_1.MongoClient(this.mongoConnection.mongoDBConnectUrl, { driverInfo: this.mongoConnection.driverInfo });
const collection = client.db(this.mongoConnection.databaseName).collection(this.mongoConnection.collectionName);
const id = overrideSessionId ? overrideSessionId : this.sessionId;
await collection.deleteOne({ sessionId: id });
await this.clear();
await client.close();
}
}
module.exports = { nodeClass: MongoDB_Memory };
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