dtamind-components
Version:
Apps integration for Dtamind. Contain Nodes and Credentials.
79 lines • 2.98 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MeilisearchRetriever = void 0;
const retrievers_1 = require("@langchain/core/retrievers");
const documents_1 = require("@langchain/core/documents");
const meilisearch_1 = require("meilisearch");
class MeilisearchRetriever extends retrievers_1.BaseRetriever {
constructor(host, meilisearchSearchApiKey, indexUid, K, semanticRatio, embeddings, searchFilter, fields) {
super(fields);
this.lc_namespace = ['langchain', 'retrievers'];
this.meilisearchSearchApiKey = meilisearchSearchApiKey;
this.host = host;
this.indexUid = indexUid;
this.embeddings = embeddings;
this.searchFilter = searchFilter;
if (semanticRatio == '') {
this.semanticRatio = '0.75';
}
else {
let semanticRatio_Float = parseFloat(semanticRatio);
if (semanticRatio_Float > 1.0) {
this.semanticRatio = '1.0';
}
else if (semanticRatio_Float < 0.0) {
this.semanticRatio = '0.0';
}
else {
this.semanticRatio = semanticRatio;
}
}
if (K == '') {
K = '4';
}
this.K = K;
}
async _getRelevantDocuments(query) {
// Pass `runManager?.getChild()` when invoking internal runnables to enable tracing
// const additionalDocs = await someOtherRunnable.invoke(params, runManager?.getChild())
const client = new meilisearch_1.Meilisearch({
host: this.host,
apiKey: this.meilisearchSearchApiKey
});
const index = await client.index(this.indexUid);
const questionEmbedding = await this.embeddings.embedQuery(query);
// Perform the search
const searchResults = await index.search(query, {
filter: this.searchFilter,
vector: questionEmbedding,
limit: parseInt(this.K), // Optional: Limit the number of results
attributesToRetrieve: ['*'], // Optional: Specify which fields to retrieve
hybrid: {
semanticRatio: parseFloat(this.semanticRatio),
embedder: 'ollama'
}
});
const hits = searchResults.hits;
let documents = [
new documents_1.Document({
pageContent: 'mock page',
metadata: {}
})
];
try {
documents = hits.map((hit) => new documents_1.Document({
pageContent: hit.pageContent,
metadata: {
objectID: hit.objectID,
...hit.metadata
}
}));
}
catch (e) {
console.error('Error occurred while adding documents:', e);
}
return documents;
}
}
exports.MeilisearchRetriever = MeilisearchRetriever;
//# sourceMappingURL=core.js.map