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[Docs] Add pyproject how-to for langgraph cloud repo structuring (#856)

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William FH
2024-06-27 10:03:23 -07:00
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docs/docs/cloud/deployment/setup.md
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# How to Set Up a LangGraph Application for Deployment
A LangGraph application must be configured with a [LangGraph API configuration file](../reference/cli.md#configuration-file) in order to be deployed to LangGraph Cloud (or to be self-hosted). This how-to guide discusses the basic steps to setup a LangGraph application for deployment.
A LangGraph application must be configured with a [LangGraph API configuration file](../reference/cli.md#configuration-file) in order to be deployed to LangGraph Cloud (or to be self-hosted). This how-to guide discusses the basic steps to setup a LangGraph application for deployment using `requirements.txt` to specify project dependencies. If you prefer using poetry for dependency management, check out [this how-to guide](./setup_pyproject.md) on using `pyproject.toml` for LangGraph Cloud.
The final repo structure will look something like this:
```bash
my-app/
|-- requirements.txt # package dependencies
|-- .env # environment variables
|-- openai_agent.py # code for an agent
|-- anthropic_agent.py # code for another agent
|-- langgraph.json # configuration file for LangGraph
```
After each step, an example file directory is provided to demonstrate how code can be organized.
## Specify Dependencies
Dependencies can optionally be specified in one of the following files: `pyproject.toml`, `setup.py`, or `requirements.txt`. If neither of these files is created, then dependencies can be specified later in the [LangGraph API configuration file](#create-langgraph-api-config).
Dependencies can optionally be specified in one of the following files: `pyproject.toml`, `setup.py`, or `requirements.txt`. If none of these files is created, then dependencies can be specified later in the [LangGraph API configuration file](#create-langgraph-api-config).
Example `requirements.txt` file:
```
@@ -91,7 +102,8 @@ Example `langgraph.json` file:
Note that the variable name of the `CompiledGraph` appears at the end of the value of each subkey in the top-level `graphs` key (i.e. `:<variable_name>`).
Example file directory:
```
```bash
my-app/
|-- requirements.txt
|-- .env
@@ -103,3 +115,7 @@ my-app/
## Upload to GitHub
To deploy the LangGraph application to LangGraph Cloud, the code must be uploaded to a GitHub repository.
## Next
After you setup your repo, it's time to [deploy your app](./cloud.md).