@langchain-core Help! Cannot access tiktoken.pages.dev, request timeout, how to solve this elegantly?

[xggz]

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Example Code

const model = this.buildBaseChatModel();
const promptMessages = this.buildPromptMessages();
const prompt = ChatPromptTemplate.fromMessages(promptMessages);
const chain = prompt.pipe(model);
await chain.invoke({
  chat_history: chatHistory,
  chat_input: chatInput
}, {
  callbacks: [baseCallbackHandler]
});

Description

Hi everyone, I'm encountering a tricky problem while using openai model: my network seems unable to properly request the tiktoken.pages.dev website, and I keep getting request timeout errors.

System Info

@langchain/core": "^0.3.39
@langchain/openai": "^0.4.3

[xggz]

The code that requests this address is here.

langchain-core/src/utils/tiktoken.ts

[dosubot[bot]]

The request timeout issue you're experiencing when accessing tiktoken.pages.dev could be due to several factors, such as network connectivity issues, server-side problems, or client-side configurations. Here are a few steps you can take to address this:

1. Check Network Connectivity: Ensure that your network connection is stable and that there are no firewall or proxy settings blocking access to tiktoken.pages.dev.

2. Retry Mechanism: Implement a retry mechanism in your code to handle transient network issues. This can help in cases where the server is temporarily unreachable.

3. Increase Timeout Settings: If possible, adjust the timeout settings for the network request to allow more time for the server to respond.

4. Alternative Endpoints: If the issue persists, consider checking if there are alternative methods or endpoints available in LangChain for handling tokenization that do not rely on tiktoken.pages.dev. Unfortunately, I couldn't find specific alternatives in the current context, but exploring the LangChain documentation or codebase might provide insights.

5. Error Handling: Ensure that your code has proper error handling to gracefully manage request failures and provide informative feedback.

If these steps do not resolve the issue, you might need to investigate further into the specific network configurations or settings in your environment that could be affecting the request.

To continue talking to Dosu, mention @dosu.

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