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https://github.com/danny-avila/LibreChat.git
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4befee829b
* refactor(createLLM): ensure ChatOpenAI class always uses client-defined openAIApiKey; move typedefs to main def file * refactor(useSSE): improve error message parsing in error handler
74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
const { ChatOpenAI } = require('langchain/chat_models/openai');
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const { sanitizeModelName } = require('../../../utils');
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const { isEnabled } = require('../../../server/utils');
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/**
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* Creates a new instance of a language model (LLM) for chat interactions.
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*
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* @param {Object} options - The options for creating the LLM.
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* @param {ModelOptions} options.modelOptions - The options specific to the model, including modelName, temperature, presence_penalty, frequency_penalty, and other model-related settings.
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* @param {ConfigOptions} options.configOptions - Configuration options for the API requests, including proxy settings and custom headers.
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* @param {Callbacks} options.callbacks - Callback functions for managing the lifecycle of the LLM, including token buffers, context, and initial message count.
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* @param {boolean} [options.streaming=false] - Determines if the LLM should operate in streaming mode.
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* @param {string} options.openAIApiKey - The API key for OpenAI, used for authentication.
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* @param {AzureOptions} [options.azure={}] - Optional Azure-specific configurations. If provided, Azure configurations take precedence over OpenAI configurations.
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*
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* @returns {ChatOpenAI} An instance of the ChatOpenAI class, configured with the provided options.
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*
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* @example
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* const llm = createLLM({
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* modelOptions: { modelName: 'gpt-3.5-turbo', temperature: 0.2 },
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* configOptions: { basePath: 'https://example.api/path' },
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* callbacks: { onMessage: handleMessage },
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* openAIApiKey: 'your-api-key'
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* });
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*/
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function createLLM({
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modelOptions,
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configOptions,
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callbacks,
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streaming = false,
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openAIApiKey,
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azure = {},
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}) {
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let credentials = { openAIApiKey };
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let configuration = {
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apiKey: openAIApiKey,
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};
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let azureOptions = {};
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if (azure) {
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const useModelName = isEnabled(process.env.AZURE_USE_MODEL_AS_DEPLOYMENT_NAME);
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credentials = {};
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configuration = {};
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azureOptions = azure;
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azureOptions.azureOpenAIApiDeploymentName = useModelName
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? sanitizeModelName(modelOptions.modelName)
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: azureOptions.azureOpenAIApiDeploymentName;
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}
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if (azure && process.env.AZURE_OPENAI_DEFAULT_MODEL) {
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modelOptions.modelName = process.env.AZURE_OPENAI_DEFAULT_MODEL;
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}
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// console.debug('createLLM: configOptions');
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// console.debug(configOptions);
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return new ChatOpenAI(
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{
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streaming,
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verbose: true,
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credentials,
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configuration,
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...azureOptions,
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...modelOptions,
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...credentials,
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callbacks,
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},
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configOptions,
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);
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}
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module.exports = createLLM;
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