Step-by-Step Guide to Registering Volcengine API, Configuring .cloudiderc, and Running LangChain Quickstart

This article is a practical tutorial that refines operations described in a README, covering the initial setup, the "00_Opening Words" and "01_LangChain Quick Start" sections, and solutions to problems encountered by the author and other users.

1. Volcengine API registration (not repeated here)

2. Where to find the .cloudiderc file

Follow the screenshot steps and click “Open File”.

Click the two red‑circled points repeatedly to return to the root directory, then navigate to /home/cloudide/.cloudiderc and insert three lines of code (replace placeholders with your own API key and model endpoint). <YOUR_API_KEY> and <YOUR_MODEL_ENDPOINT> should be replaced with the values shown in your Volcengine Ark model page (as described in the README). After editing, run source ~/.cloudiderc in the terminal.

export OPENAI_API_KEY=<YOUR_API_KEY>
export OPENAI_BASE_URL="https://ark.cn-beijing.volces.com/api/v3"
export LLM_MODELEND=<YOUR_MODEL_ENDPOINT>

3. Why does 00‑02 fail to run?

As shown in the screenshot, change the model on line 50 to your own model endpoint.

4. Why does 01_LangChain Quick Start also fail?

The failure is caused by an outdated API endpoint; the comment at the top of the code already mentions that the old interface has been deprecated. Although you could look up the new OpenAI endpoint, network restrictions make it difficult, and since you already have a Volcengine API and model, you should use those instead.

Volcengine API console (screenshot below).

Install the Volcengine Python SDK in the terminal:

pip install --upgrade 'volcengine-python-sdk[ark]'

Import the Volcengine SDK. The specific code is shown in the screenshot; pay attention to the highlighted details.

After this section runs successfully, the remaining three examples should work without further issues.

Future Work

A tutorial on installing the environment and running the code on a local PC may be published tomorrow, depending on time and mood.