mirror of
https://github.com/kennethreitz/langchain.git
synced 2026-06-05 23:00:18 +00:00
David Duong
55 lines
869 B
Markdown
55 lines
869 B
Markdown
# langchain-cli
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Install CLI
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`pip install -U --pre langchain-cli`
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Create new langchain app
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`langchain serve new my-app`
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Go into app
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`cd my-app`
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Install a package
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`langchain serve add extraction-openai-functions`
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Install langserve
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`pip install "langserve[all]"`
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Install the langchain package
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`pip install -e packages/extraction-openai-functions`
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Edit `app/server.py` to add that package to the routes
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```markdown
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from fastapi import FastAPI
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from langserve import add_routes
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from extraction_summary.chain import chain
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app = FastAPI()
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add_routes(app, chain)
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```
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Set env vars
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```shell
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export OPENAI_API_KEY=...
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```
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```shell
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export LANGCHAIN_TRACING_V2=true
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export LANGCHAIN_ENDPOINT="https://api.smith.langchain.com"
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export LANGCHAIN_API_KEY="<your-api-key>"
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export LANGCHAIN_PROJECT="extraction-openai-functions"
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```
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Run the app
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`python app/server.py`
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