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API扩展中，保存API Endpoint时报错connection error: request error, status_code: 503, content: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html><he #142

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opened 2026-02-16 11:19:52 -05:00 by yindo · 1 comment
yindo commented 2026-02-16 11:19:52 -05:00
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Originally created by @JimmyMLeung on GitHub (Apr 12, 2025).

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ERROR:
connection error: request error, status_code: 503, content: <html><he

Originally created by @JimmyMLeung on GitHub (Apr 12, 2025). ![Image](https://github.com/user-attachments/assets/a858891b-def7-41db-bec7-3cedcfd164b6) ERROR: connection error: request error, status_code: 503, content: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html><he
yindo added the bug label 2026-02-16 11:19:52 -05:00
yindo commented 2026-02-16 11:19:52 -05:00
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@dosubot[bot] commented on GitHub (Apr 12, 2025):

Hello @JimmyMLeung! I'm here to help you with any bugs or questions you have while you wait for a human maintainer. Let’s tackle this together!

A 503 status code typically indicates that the server is temporarily unavailable, which could be due to server overload or maintenance. In the context of using a localhost API endpoint, ensure that the local server is running and accessible at the specified port (8080 in this case). Additionally, verify that there are no network issues or firewall settings blocking the connection.

If you're running the API service locally, make sure it's correctly configured to listen on the specified port and that there are no typos in the URL. You might also want to check if the server logs provide more details about the error.

For local debugging, consider using a tool like Ngrok to expose your local server to the internet, which can help in testing external connections to your API [1].

To continue talking to Dosu, mention @dosu.

Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

@dosubot[bot] commented on GitHub (Apr 12, 2025): <!-- Greeting --> Hello @JimmyMLeung! I'm here to help you with any bugs or questions you have while you wait for a human maintainer. Let’s tackle this together! <!-- Answer --> A 503 status code typically indicates that the server is temporarily unavailable, which could be due to server overload or maintenance. In the context of using a localhost API endpoint, ensure that the local server is running and accessible at the specified port (8080 in this case). Additionally, verify that there are no network issues or firewall settings blocking the connection. If you're running the API service locally, make sure it's correctly configured to listen on the specified port and that there are no typos in the URL. You might also want to check if the server logs provide more details about the error. For local debugging, consider using a tool like Ngrok to expose your local server to the internet, which can help in testing external connections to your API <sup>[[1]](https://github.com/langgenius/dify-docs/blob/main/jp/guides/extension/api-based-extension/README.md)</sup>. <!-- Dosu Comment Footer --> *To continue talking to [Dosu](https://dosu.dev), mention @dosu.* --- <sup>Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/2fcf3cea-9522-439e-b530-67710d31c054?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/2fcf3cea-9522-439e-b530-67710d31c054?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/2fcf3cea-9522-439e-b530-67710d31c054?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/2fcf3cea-9522-439e-b530-67710d31c054?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/2fcf3cea-9522-439e-b530-67710d31c054?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/2fcf3cea-9522-439e-b530-67710d31c054?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/2fcf3cea-9522-439e-b530-67710d31c054?feedback_type=other)</sup>
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Reference: langgenius/dify-docs-archived#142
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