Langchain api chain github

Langchain api chain github. Embedchain is an Open Source Framework for personalizing LLM responses. This project aims to provide FastAPI users with a cloud-agnostic and deployment-agnostic solution which can be easily integrated into existing backend infrastructures. It would indeed be helpful to have a baseline for further implementation on other Bing APIs. Mar 10, 2012 · With the current GPT-4 model, the invocation of from_llm_and_api_docs works as expected. Apr 11, 2023 · I don't see you passing the OPENAI_API_KEY anywhere, might that be the issue? Also, I'd recommend updating to 0. May 9, 2023 · You signed in with another tab or window. curl --location 'https:/myhost:10 1 day ago · langchain_community 0. . Jul 21, 2023 · Your proposal to add integration test cases for the BingSearchAPIWrapper sounds like a valuable addition to the framework. While LangChain has its own message and model APIs, LangChain has also made it as easy as possible to explore other models by exposing an adapter to adapt LangChain models to the other APIs, as to the OpenAI API. 0. LCEL was designed from day 1 to support putting prototypes in production, with no code changes, from the simplest “prompt + LLM” chain to the most complex chains. langchain If you would like to contribute to the LangChain Chatbot, please follow these steps: Fork the repository. There has been one comment from @miguelmoya97 suggesting the use of Agents with a set of tools to achieve the same result, but without fully understanding the use case. The maximum number of retries is set by the max_retries attribute, which defaults to 6. Apr 24, 2023 · I'm building a flow where I'm using both gpt-3. An updated version of the class exists in the Jan 9, 2024 · As for the LANGCHAIN_ENDPOINT environment variable, I wasn't able to find specific information about its role within the LangChain codebase. In the _call method, it takes the inputs and an optional run_manager. LangChain provides a standard interface for chains, lots of integrations with other tools GitHub - rdord/langchain-vue3-app: OpenAI via LangChain in Vue 3 app (Composition API) rdord / langchain-vue3-app Public. cpp. embeddings. However, all that is being done under the hood is constructing a chain with LCEL. Aug 20, 2023 · From your description, it seems like you're trying to pass an array as the body of your API request using the OpenAPIEndpointChain. Next, create a new LangChain project: langchain app new my-app. Nov 11, 2023 · System Info langchain 0. 众所周知 OpenAI 的 API 无法联网的，所以如果只使用自己的功能实现联网搜索并给出回答、总结 PDF 文档、基于某个 Youtube 视频进行问答等等的功能肯定是无法实现的。. Python bindings for llama. Aug 12, 2023 · Answer generated by a 🤖. llm = Ollama ( model = "llama2") API Reference: Ollama. We try to be as close to the original as possible in terms of abstractions, but are open to new entities. Adapters are used to adapt LangChain models to other APIs. Hi, Currently, I want to build RAG chatbot for production. py:117: LangChainDeprecationWarning: The class langchain_community. export OPENAI_API_KEY= export TAVILY_API_KEY= # for Anthropic # remove models from code if unused ANTHROPIC_API_KEY= # if you'd like to use the You. Files. Hello, Yes, you can enable recursive summarization with load_summarize_chain using chain_type=map_reduce and setting token_max. 5 Who can help? @hwchase17 Information The official example notebooks/scripts My own modified scripts Related Components LLMs/Chat Models Embedding Models Prompts / Prompt Templates / Prompt Sele 2 days ago · The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package). Apr 21, 2023 · Getting same issue for StableLM, FLAN, or any model basically. Jul 19, 2023 · To pass context to the ConversationalRetrievalChain, you can use the combine_docs_chain parameter when initializing the chain. Before initializing your agent, the following environmental variables need to be set: GITHUB_APP_ID - A six digit number found in your app's general settings. Generate a question-answering chain with a specified set of UI-chosen configurations. ts. 344 langchain-experimental>= Jul 10, 2023 · Hi, @jay0129!I'm Dosu, and I'm here to help the LangChain team manage their backlog. adapters ¶. I searched the LangChain documentation with the integrated search. From what I understand, you raised an issue regarding the absence of a "Settings" option in the menu when generating a new API key using the langchain plus start command. Jul 25, 2023 · from langchain. 🧠 Memory: Memory is the concept of persisting state between calls of a chain/agent. From what I understand, you requested the addition of a google_search_url override for the GoogleSearchAPIWrapper class in the langchain. 9 环境 API requirements langchain==0. At its core, Embedchain follows the design principle of being "Conventional but Configurable" to serve both software engineers and machine learning engineers. qa_prompt import QA_PROMPT from templates. History. If the Dec 8, 2023 · The LangChain agent first checks the values passed to the LangChain configuration (values dictionary), and if not found, it then checks the environment variables. 155 lines (132 loc) · 4. from_api_operation method creates an instance of OpenAPIEndpointChain from an APIOperation object. Write tests for your changes. LangChain provides a standard interface for memory, a collection of memory implementations, and examples of chains/agents that use memory. Persistent storage of app state (including caches) Built-in support for Authn/z. You signed out in another tab or window. Fork 1. utilities. 33 KB. 所以，我们来介绍一个非常强大的第三方开源库： LangChain 。. langchain-ai / langchainjs Public. However, when switching the model to the upcoming gpt-4-1106-preview, the function fails as the LLM, instead of returning the URL for the API call, returns a verbose response: LLM response on_text: To generate the API URL for the user's question "basketball community [patch]: Release 0. Question-Answering has the following steps: Given the chat history and new user input, determine what a standalone question would be using GPT-3. api_key = openai_api_key which is a global variable on the package. Hello, Thank you for your detailed feature request. c Set Environmental Variables. tools import BaseTool from langchain import OpenAI Feb 8, 2023 · I'm Dosu, and I'm helping the LangChain team manage their backlog. Sep 22, 2023 · 🤖. py中设置zhipu-api version Mar 13, 2023 · from langchain. ai retriever export KAY_API_KEY= # for tracing export LANGCHAIN_TRACING_V2=true export Oct 10, 2023 · const CUSTOM_QUESTION_GENERATOR_CHAIN_PROMPT = `Given the following conversation and a follow up question, return the conversation history excerpt that includes any relevant context to the question if it exists and rephrase the follow up question to be a standalone question. I wanted to let you know that we are marking this issue as stale. In this example, a single sequential chain is created, allowing for a single input that generates a single output. F:\Anaconda3\envs\py310\lib\site-packages\langchain_core_api\deprecation. However, you need to ensure that the URL is correctly set in the openai_api_base field of the BaseOpenAI class. LangChain provides a standard interface for agents, a selection of agents to choose from, and examples of end to end agents. chains import SimpleSequentialChain from langchain_openai import ChatOpenAI from langchain. Jan 5, 2024 · In the LangChain codebase, the API key for the news-api tool is set by passing it as a keyword argument when calling the _get_news_api function. 3. 52. APIChain enables using LLMs to interact with APIs to retrieve relevant information. Notifications. GitHub - rdord/langchain-vue3-app: OpenAI via LangChain in Vue 3 app (Composition API) rdord / langchain-vue3-app Public. ) Reason: rely on a language model to reason (about how to answer based on First, follow these instructions to set up and run a local Ollama instance: Then, make sure the Ollama server is running. A bit about my use case: I want to build a ToolKit that takes a prompt and queries an external API (using multiple endpoints of the same API) I ideally want to load an OpenAPI schema from a file so the documentation for the endpoint can be passed to the LangServe helps developers deploy LangChain runnables and chains as a REST API. Use the chain to generate a response To create a new LangChain project and install this as the only package, you can do: langchain app new my-app --package chain-of-note-wiki. Jan 8, 2024 · It is hoped that the load balancing feature of multiple openai/Azure openai accounts can be supported. 11. 🔗 Chains: Chains go beyond just a single LLM call, and are sequences of calls (whether to an LLM or a different utility). The OpenAPIEndpointChain. [Legacy] Chains constructed by subclassing from a legacy Chain class. For example, automatically choose which apikey to use for this operation, or if the request fails, langchain can switch to the next key to retry. The output of the first chain is automatically passed as the Easy deployment of LangChain models and pipelines; Ready to use auth functionality; High-performance FastAPI framework for serving requests; Scalable and robust solution for language processing applications; Supports custom pipelines and processing; Well-documented RESTful API endpoints; Asynchronous processing for faster response times There are two types of off-the-shelf chains that LangChain supports: Chains that are built with LCEL. js. Here's how you can do it: from langchain. This parameter should be an instance of a chain that combines documents, such as the StuffDocumentsChain. api_chain. vectorstores import Pinecone import pinecone from templates. from_openapi_spec (spec, "/api/terminateApi", "post") To add a request body at runtime, you can pass it as an argument when calling the chain. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. 3 participants. Line 105 Mar 29, 2023 · Hi, I keep getting the below warning every time the chain finishes. 334 python 3. from_url ("your_specification_url") operation = APIOperation. This mechanism uses exponential backoff, starting with a wait time of 4 seconds and increasing exponentially up to a maximum of 10 seconds between retries. Cannot retrieve latest commit at this time. 文档地址： https://python. Introduction. chat_models import ChatOpenAI from langchain. 🦜🔗 Build context-aware reasoning applications. Hi, @dsantiago!I'm Dosu, and I'm here to help the LangChain team manage their backlog. And add the following code to your server. Release langchain-fireworks==0. This includes prompt management, prompt optimization, generic interface for all LLMs, and common utilities for working with LLMs. This library is integrated with FastAPI and uses pydantic for data validation. This repository contains LangChain adapters for Steamship, enabling LangChain developers to rapidly deploy their apps on Steamship to automatically get: Production-ready API endpoint (s) Horizontal scaling across dependencies / backends. Given that standalone question, look up relevant documents from the vectorstore. " GitHub is where people build software. May 17, 2023 · Langchain FastAPI stream with simple memory. Construct the chain by providing a question relevant to the provided API documentation. google_search module. No branches or pull requests. However, most of them are opinionated in terms of cloud or deployment code. Contribute to abetlen/llama-cpp-python development by creating an account on GitHub. chains import LLMChain from langchain. You don't need to build your own chain using MapReduceChain, ReduceDocumentsChain, and MapReduceDocumentsChain. Jan 9, 2024 · You signed in with another tab or window. Apply an LLM ( GPT-3. In addition, it provides a client that can be used to call into runnables deployed on a server. Contribute to langchain-ai/langchain development by creating an account on GitHub. Additionally, a temporary solution of ignoring FutureWarnings by adding a specific line of code to the Python script was recommended. llms. Overview: LCEL and its benefits. main. 5 and gpt-4 based chains and I need to use different API keys for each (due to API access + external factors) Both ChatOpenAI and OpenAI set openai. Here is my solution: def _call(self, inputs: Dict[str, str]) -> Dict[str, str]: question = inputs[self. Here's an example of how you can do this: from langchain. API Response of one API (form APIChain. It has a vectorstore attribute and routing_keys attribute which defaults to ["query"]. 未使用 langchain 接入本地文档时： ChatGLM-6B 是一个基于 GPT-3 Productionization: Use LangSmith to inspect, monitor and evaluate your chains, so that you can continuously optimize and deploy with confidence. huggingface_hub module to use the new InferenceClient and shared a pull request to address the issue. GITHUB_APP_PRIVATE_KEY - The location of your app's private key . I already had my LLM API and I want to create a custom LLM and then use this in RetrievalQA. This field is used to set the base URL path for API requests. # The goal of this file is to provide a FastAPI application for handling. It enables applications that: Are context-aware: connect a language model to sources of context (prompt instructions, few shot examples, content to ground its response in, etc. 5. Reload to refresh your session. Concretely, the framework consists of the following open-source libraries: langchain-core: Base abstractions and LangChain Expression Language. from_llm_and_api_docs) needs to be chained to another API, how can Mar 30, 2023 · Since the class TextRequestsWrapper has already implemented the post method, we need the llm to output the request method in the api docs and generate the request body if necessary. py file: Create a vectorstore of embeddings, using LangChain's Weaviate vectorstore wrapper (with OpenAI's embeddings). 5-turbo) to auto-generate question - answer pairs from these docs. Code. I understand that you want to modify the from_llm_and_api_docs() function in LangChain to support APIs that require parameters via the "params" parameter in the request library. from_chain_type function. # chat requests amd generation AI-powered responses using conversation chains. openai import OpenAIEmbeddings from langchain. llm import ChatOpenAI llm = ChatOpenAI ( temperature=0, stream=True) Reduce the number of tokens sent: The response time from the OpenAI API can also be affected by the number of tokens sent in the request. Package-specific release note generation coming soon. LangChain Expression Language (LCEL) LCEL is the foundation of many of LangChain's components, and is a declarative way to compose chains. The API key is then used to set the X-Api-Key header in the API requests made by the tool. No milestone. Oct 15, 2023 · This was suggested in the issue #3202. Upgrading to 0. See chromaDB sourcecode and their API chromadb\server\fastapi\__init__. Pass the standalone question and relevant documents to the model to generate and stream the final answer. First we'll need to import the LangChain x Anthropic package. py file: from chain_of_note_wiki import chain as chain_of {"payload":{"allShortcutsEnabled":false,"fileTree":{"docs/api_reference":{"items":[{"name":"_static","path":"docs/api_reference/_static","contentType":"directory Dec 27, 2023 · Yes, it is possible to use the OpenAI-compatible URL API from text-generation-webui with LangChain. chat import ChatPromptTemplate from tools import TruckTool from langchain import Jun 12, 2023 · Steps to Reproduce. langchainjs. Assets 2. 181 or above) to interact with multiple CSV Jan 19, 2024 · 您收到错误代码400，信息为'Only zhipu-api allowed now, your model chatglm3-6b'，这可能是因为Langchain-Chatchat应用程序中的ChatGLMWorker类的当前实现只支持'zhipu-api'模型。 Mar 3, 2024 · from langchain. A JavaScript client is available in LangChain. openai. This function is defined in the load_tools. # for natural language processing. To associate your repository with the langchain-api topic To create a new LangChain project and install this as the only package, you can do: langchain app new my-app --package stepback-qa-prompting. To use, first install the LangChain CLI. Apr 8, 2023 · A Langchain compatible implementation which enables the integration with LLM-API The main reason for implementing this package is to be able to use Langchain with any model run locally. In this case, LangChain offers a higher-level constructor method. tools import OpenAPISpec, APIOperation spec = OpenAPISpec. Create a new branch for your feature or bug fix. Fork 3. It's possible that it's used to specify the endpoint for the LangSmith API, but without more information, it's hard to say for sure. This project contains example usage and documentation around using the LangChain library to work with language models. 56 by @bracesproul in #5335. 1k. py. Star 11. chains import (. Embedchain streamlines the creation of personalized LLM . This will create a new directory called my-app with two folders: app: This is where LangServe code will live. If you're sending a large number of tokens, you might want Jan 10, 2024 · 问题描述 / Problem Description minimax-api agent-chat对话报错ERROR: TypeError: Caught exception: object of type 'NoneType' has no len() 换成qwen-api可以正常访问 langchain-chatchat版本号：v0. If your API requires authentication or other headers, you can pass the chain a headers property in the config object. py file: Nov 14, 2023 · The router chain in LangChain, specifically the EmbeddingRouterChain, handles the routing of user input to the destination chains by using embeddings to route between options. ipynb <-- Example of using LangChain to interact with CSV data via chat, containing a verbose switch to show the LLM thinking process. pip install -U langchain-cli. 9k. Oct 11, 2023 · You signed in with another tab or window. / src. ai retriever export KAY_API_KEY= # for tracing export LANGCHAIN_TRACING_V2=true export To use, first install the LangChain CLI. chat_ models. Select a source language and enter some text for translation. core [minor]: RunnableLambda should consume (async) iterator if the wrapped function returns one by @nfcampos in #5342. 1. I have multiple Custom API’s from different swagger docs to invoke API based on user query. Add this topic to your repo. If the openai_api_base parameter is being set to a different value somewhere else in your code or environment, it could be overriding the value you're trying to set. Multi-tenancy support. Choose the target language and submit for translation. question_key] There are great low-code/no-code solutions in the open source to deploy your Langchain projects. To get started, please follow the contribution guidelines provided in the LangChain repository. / langchain. Development. prompts. After that, you can do: from langchain_community. 不管是把文本当作prompt发给openai api，还是还是使用openai api embedding功能都是有字符限制的。比如将一份300页的pdf发给openai api，让他进行总结，他肯定会报超过最大Token错。所以这里就需要使用文本分割器去分割loader进来的 Document。 问题描述 / Problem Description 使用zhipuai的glm-4在线大模型不适配 复现问题的步骤 / Steps to Reproduce model_config. ChatOpenAI was deprecated in langchain-community 0. To create a new LangChain project and install this as the only package, you can do: langchain app new my-app --package stepback-qa-prompting. create_retrieval_chain block local api of local llm Checked other resources I added a very descriptive title to this question. Open the Langchain application. LangChain is a framework for developing applications powered by language models. The loop checks if the result contains the key "final" to determine if the final result has been reached and updates the input for the next iteration based on the result of the current invocation. / api. I utilized the HuggingFacePipeline to get the inference done locally, and that works as intended, but just cannot get it to run from HF hub. # The application uses the LangChaing library, which includes a chatOpenAI model. 2 days ago · The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package). pem file, or the full text of that file as a string. You signed in with another tab or window. If you want to add this to an existing project, you can just run: langchain app add stepback-qa-prompting. WARNING:root:Failed to persist run: HTTPConnectionPool(host='localhost', port=8000): Max retries exceeded with url: /chain-runs (Caused by NewConnectionError('<urllib3. from_api_operation method in the LangChain Python framework. Mar 27, 2024 · LangServe - deploy LangChain runnables and chains as a REST API (Python) OpenGPTs - Open-source effort to create a similar experience to OpenAI's GPTs and Assistants API (Python) LangGraph - build language agents as graphs (Python) export OPENAI_API_KEY= export TAVILY_API_KEY= # for Anthropic # remove models from code if unused ANTHROPIC_API_KEY= # if you'd like to use the You. llms import Ollama. Apr 19, 2023 · I'm trying to add a tool with the OpenAPI chain, and I'm struggling to get API auth working. From what I understand, you were experiencing an "openAI API error" in a function that calls the openai API multiple times. py file and is used to create a new instance of the news-api tool. chains import ConversationalRetrievalChain from langchain. Feature request LangChain supports GET functions, but there is no support for POST functions. It makes it easy to create and deploy personalized AI apps. 10 and will be removed in 0. Set Environmental Variables. 52 made it worse, getting Network Errors on all requests now. condense_prompt import CONDENSE_PROMPT def query (openai_api May 14, 2023 · The expected behaviour would be that Langchain would call the ChromaDB API correctly with the UUID instead of the plaintext name of the collection. LangChain integrates with many model providers. To associate your repository with the langchain topic, visit your repo's landing page and select "manage topics. This feature request proposes the addition of POST API functionality to enhance the capabilities of LangChain. This code includes a loop in the handle_prompt function that keeps invoking the MultiPromptChain until the final result is reached. Feb 7, 2024 · More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Usage This code demonstrates the chaining aspect of the Langchain framework. Jul 4, 2023 · The LangChain framework includes a retry mechanism for handling API errors, including timeouts. packages: This is where your chains or agents will live. ) Reason: rely on a language model to reason (about how to answer based on provided 以问题chatglm-6b 的局限性具体体现在哪里，如何实现改进为例：. It showcases how two large language models can be seamlessly connected using SimpleSequentialChain. Implement your changes and ensure that all tests pass. / chains. ⚡ Building applications with LLMs through composability ⚡ C# implementation of LangChain. You switched accounts on another tab or window. Oct 9, 2023 · Anupj suggested updating the langchain. If you want to add this to an existing project, you can just run: langchain app add chain-of-note-wiki. Deployment: Turn any chain into an API with LangServe. chat_with_csv_verbose. tools import BaseTool from langchain import OpenAI Apr 18, 2023 · From what I understand, you were asking if anyone is working on a JavaScript implementation of the API Chain, and you provided a link to the Python implementation for reference. Doing so can deal with concurrency problems in real-world scenarios. Repeat steps 2-3 multiple times in quick succession or concurrently. This is a lightweight evaluation tool for question-answering using Langchain to: Ask the user to input a set of documents of interest. API keys and default language models for OpenAI & HuggingFace are set up in config. 2. Dec 5, 2023 · Issue you'd like to raise. com retriever export YDC_API_KEY= # if you'd like to use the Google retriever export GOOGLE_CSE_ID= export GOOGLE_API_KEY= # if you'd like to use the Kay. ipynb <-- Example of LangChain (0. prompts import PromptTemplate from langchain_openai import OpenAI # simple sequential chain from langchain. 0¶ langchain_community. Submit a pull request. chat_with_multiple_csv. langchain [patch]: Fix passing run configs through in AgentExecutor by @bracesproul in #5338. Example Code #----part0导入所需要的类 import os import requests from PIL import Image from transformers import BlipProcessor, BlipForConditionalGeneration from langchain. oz ve se kb ou tx as gi tf ga