File size: 3,439 Bytes
f0743f4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | const { z } = require('zod');
const { Tool } = require('@langchain/core/tools');
const { logger } = require('@librechat/data-schemas');
const { SearchClient, AzureKeyCredential } = require('@azure/search-documents');
class AzureAISearch extends Tool {
// Constants for default values
static DEFAULT_API_VERSION = '2023-11-01';
static DEFAULT_QUERY_TYPE = 'simple';
static DEFAULT_TOP = 5;
// Helper function for initializing properties
_initializeField(field, envVar, defaultValue) {
return field || process.env[envVar] || defaultValue;
}
constructor(fields = {}) {
super();
this.name = 'azure-ai-search';
this.description =
"Use the 'azure-ai-search' tool to retrieve search results relevant to your input";
/* Used to initialize the Tool without necessary variables. */
this.override = fields.override ?? false;
// Define schema
this.schema = z.object({
query: z.string().describe('Search word or phrase to Azure AI Search'),
});
// Initialize properties using helper function
this.serviceEndpoint = this._initializeField(
fields.AZURE_AI_SEARCH_SERVICE_ENDPOINT,
'AZURE_AI_SEARCH_SERVICE_ENDPOINT',
);
this.indexName = this._initializeField(
fields.AZURE_AI_SEARCH_INDEX_NAME,
'AZURE_AI_SEARCH_INDEX_NAME',
);
this.apiKey = this._initializeField(fields.AZURE_AI_SEARCH_API_KEY, 'AZURE_AI_SEARCH_API_KEY');
this.apiVersion = this._initializeField(
fields.AZURE_AI_SEARCH_API_VERSION,
'AZURE_AI_SEARCH_API_VERSION',
AzureAISearch.DEFAULT_API_VERSION,
);
this.queryType = this._initializeField(
fields.AZURE_AI_SEARCH_SEARCH_OPTION_QUERY_TYPE,
'AZURE_AI_SEARCH_SEARCH_OPTION_QUERY_TYPE',
AzureAISearch.DEFAULT_QUERY_TYPE,
);
this.top = this._initializeField(
fields.AZURE_AI_SEARCH_SEARCH_OPTION_TOP,
'AZURE_AI_SEARCH_SEARCH_OPTION_TOP',
AzureAISearch.DEFAULT_TOP,
);
this.select = this._initializeField(
fields.AZURE_AI_SEARCH_SEARCH_OPTION_SELECT,
'AZURE_AI_SEARCH_SEARCH_OPTION_SELECT',
);
// Check for required fields
if (!this.override && (!this.serviceEndpoint || !this.indexName || !this.apiKey)) {
throw new Error(
'Missing AZURE_AI_SEARCH_SERVICE_ENDPOINT, AZURE_AI_SEARCH_INDEX_NAME, or AZURE_AI_SEARCH_API_KEY environment variable.',
);
}
if (this.override) {
return;
}
// Create SearchClient
this.client = new SearchClient(
this.serviceEndpoint,
this.indexName,
new AzureKeyCredential(this.apiKey),
{ apiVersion: this.apiVersion },
);
}
// Improved error handling and logging
async _call(data) {
const { query } = data;
try {
const searchOption = {
queryType: this.queryType,
top: typeof this.top === 'string' ? Number(this.top) : this.top,
};
if (this.select) {
searchOption.select = this.select.split(',');
}
const searchResults = await this.client.search(query, searchOption);
const resultDocuments = [];
for await (const result of searchResults.results) {
resultDocuments.push(result.document);
}
return JSON.stringify(resultDocuments);
} catch (error) {
logger.error('Azure AI Search request failed', error);
return 'There was an error with Azure AI Search.';
}
}
}
module.exports = AzureAISearch;
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