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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,52 +1,57 @@ | ||
| import { DynamicModule, Global, Logger, Module } from '@nestjs/common'; | ||
| import { Chroma } from '@langchain/community/vectorstores/chroma'; | ||
| import { OpenAIEmbeddings } from '@langchain/openai'; | ||
| import { TogetherAIEmbeddings } from '@langchain/community/embeddings/togetherai'; | ||
|
|
||
| @Global() | ||
| @Module({}) | ||
| export class ChromaModule { | ||
| static register (apiKey: string): DynamicModule { | ||
| return { | ||
| module: ChromaModule, | ||
| global: true, | ||
| providers: [ | ||
| { | ||
| provide: 'CHROMA_DB', | ||
| useFactory: async (): Promise<Chroma> => { | ||
| try { | ||
| static register(apiKey: string): DynamicModule { | ||
| return { | ||
| module: ChromaModule, | ||
| global: true, | ||
| providers: [ | ||
| { | ||
| provide: 'CHROMA_DB', | ||
| useFactory: async (): Promise<Chroma> => { | ||
| try { | ||
| if (!process.env.OPENAI_API_KEY) | ||
| throw new Error('OpenAI API key is required'); | ||
|
|
||
| if (!process.env.OPENAI_API_KEY) throw new Error('OpenAI API key is required'); | ||
|
|
||
| Logger.debug(process.env.CHROMA_URL, 'ChromaModule'); | ||
| Logger.debug(process.env.CHROMA_COLLECTION_NAME, 'ChromaModule'); | ||
| Logger.debug(process.env.CHROMA_URL, 'ChromaModule'); | ||
| Logger.debug(process.env.CHROMA_COLLECTION_NAME, 'ChromaModule'); | ||
|
|
||
| const vectorStore = await Chroma.fromExistingCollection( | ||
| new OpenAIEmbeddings({ | ||
| openAIApiKey: apiKey, | ||
| modelName: process.env.MODEL_EMBEDDING, | ||
| }), | ||
| { | ||
| collectionName: process.env.CHROMA_COLLECTION_NAME, | ||
| url: process.env.CHROMA_URL, | ||
| } | ||
| ); | ||
|
|
||
| const ensure = await vectorStore.ensureCollection(); | ||
| Logger.debug(JSON.stringify(ensure), 'ChromaModule:ensureCollection'); | ||
| const vectorStore = await Chroma.fromExistingCollection( | ||
| new TogetherAIEmbeddings({ | ||
| apiKey: process.env.TOGETHER_AI_API_KEY, | ||
| modelName: process.env.MODEL_EMBEDDING, | ||
| }), | ||
| { | ||
| collectionName: process.env.CHROMA_COLLECTION_NAME, | ||
| url: process.env.CHROMA_URL, | ||
| }, | ||
| ); | ||
|
|
||
| const docCount = await vectorStore.collection.count(); | ||
| Logger.debug(`Loaded ${docCount} documents from ChromaDB`, 'ChromaModule'); | ||
| const ensure = await vectorStore.ensureCollection(); | ||
| Logger.debug( | ||
| JSON.stringify(ensure), | ||
| 'ChromaModule:ensureCollection', | ||
| ); | ||
|
|
||
| return vectorStore; | ||
|
|
||
| } catch (e) { | ||
| Logger.error('ChromaDB connection failure:', e, 'ChromaDBModule'); | ||
| throw new Error('CHROMADB_CONNECTION_FAILURE'); | ||
| } | ||
| }, | ||
| }, | ||
| ], | ||
| exports: ['CHROMA_DB'], | ||
| }; | ||
| } | ||
| } | ||
| const docCount = await vectorStore.collection.count(); | ||
| Logger.debug( | ||
| `Loaded ${docCount} documents from ChromaDB`, | ||
| 'ChromaModule', | ||
| ); | ||
|
|
||
| return vectorStore; | ||
| } catch (e) { | ||
| Logger.error('ChromaDB connection failure:', e, 'ChromaDBModule'); | ||
| throw new Error('CHROMADB_CONNECTION_FAILURE'); | ||
| } | ||
| }, | ||
| }, | ||
| ], | ||
| exports: ['CHROMA_DB'], | ||
| }; | ||
| } | ||
| } |
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