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After sending a request, the plugin cannot return a response result #13177

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opened 2026-02-21 19:10:55 -05:00 by yindo · 1 comment
yindo commented 2026-02-21 19:10:55 -05:00
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Originally created by @dazhivip on GitHub (Apr 21, 2025).

Self Checks

  • This is only for bug report, if you would like to ask a question, please head to Discussions.
  • I have searched for existing issues search for existing issues, including closed ones.
  • I confirm that I am using English to submit this report (我已阅读并同意 Language Policy).
  • [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:)
  • Please do not modify this template :) and fill in all the required fields.

Dify version

1.20

Cloud or Self Hosted

Cloud

Steps to reproduce

  def _invoke(self, tool_parameters: dict[str, Any]) -> Generator[ToolInvokeMessage]:

                # 使用 requests 进行 HTTP 请求
        response = requests.get(url="http://t.weather.sojson.com/api/weather/city/101030100", timeout=5)
        print(f"天气信息: {response.json()}")
                
                # 返回请求结果
        yield self.create_json_message({
            "data": {}
        })

The above constructor doesn't respond to the result correctly, and the plugin keeps running when debugging remotely

✔️ Expected Behavior

No response

❌ Actual Behavior

No response

Originally created by @dazhivip on GitHub (Apr 21, 2025). ### Self Checks - [x] This is only for bug report, if you would like to ask a question, please head to [Discussions](https://github.com/langgenius/dify/discussions/categories/general). - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this report (我已阅读并同意 [Language Policy](https://github.com/langgenius/dify/issues/1542)). - [x] [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:) - [x] Please do not modify this template :) and fill in all the required fields. ### Dify version 1.20 ### Cloud or Self Hosted Cloud ### Steps to reproduce ``` def _invoke(self, tool_parameters: dict[str, Any]) -> Generator[ToolInvokeMessage]: # 使用 requests 进行 HTTP 请求 response = requests.get(url="http://t.weather.sojson.com/api/weather/city/101030100", timeout=5) print(f"天气信息: {response.json()}") # 返回请求结果 yield self.create_json_message({ "data": {} }) ``` The above constructor doesn't respond to the result correctly, and the plugin keeps running when debugging remotely ### ✔️ Expected Behavior _No response_ ### ❌ Actual Behavior _No response_
yindo added the 🤔 cant-reproduce label 2026-02-21 19:10:55 -05:00
yindo closed this issue 2026-02-21 19:10:55 -05:00
yindo commented 2026-02-21 19:10:55 -05:00
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@dosubot[bot] commented on GitHub (Apr 21, 2025):

Hello @dazhivip! I'm Dosu, your friendly neighborhood bug-fixing bot. I'm here to help you tackle any issues while you wait for a human maintainer. Let's dive into that problem together! 🛠️

I found a similar unsolved discussion titled "HELP: _invoke() Hangs When Executing Query with Dify Plugin SDK" which might be relevant to your issue [1].

To address the problem where the plugin does not return a response, consider the following:

  1. Ensure Proper Response Handling: Make sure that the response from the HTTP request is correctly processed and returned. In your code, the create_json_message method is used to yield a JSON message, but the dictionary passed to it is empty ("data": {}). Ensure that the actual data you want to return is included in this dictionary.

  2. Check for Exceptions: Verify that there are no exceptions being raised during the HTTP request or response processing. You can add exception handling to catch and log any errors that might occur.

  3. Timeout and Error Handling: Ensure that the timeout is set appropriately and consider implementing error retry mechanisms. The Dify plugin SDK recommends enabling error retry functionality and configuring exception handling to manage network request timeouts effectively [2].

  4. Debugging Techniques: Although specific debugging techniques for the Dify plugin SDK were not found, general practices such as logging the request and response details, and using breakpoints to step through the code can help identify where the issue might be occurring.

By addressing these points, you may be able to resolve the issue with the plugin not returning a response.

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 21, 2025): <!-- Greeting --> Hello @dazhivip! I'm [Dosu](https://dosu.dev), your friendly neighborhood bug-fixing bot. I'm here to help you tackle any issues while you wait for a human maintainer. Let's dive into that problem together! 🛠️ <!-- Answer --> I found a similar unsolved discussion titled "[HELP: _invoke() Hangs When Executing Query with Dify Plugin SDK](https://github.com/langgenius/dify/discussions/18145)" which might be relevant to your issue <sup>[[1]](https://github.com/langgenius/dify/discussions/18145)</sup>. To address the problem where the plugin does not return a response, consider the following: 1. **Ensure Proper Response Handling**: Make sure that the response from the HTTP request is correctly processed and returned. In your code, the `create_json_message` method is used to yield a JSON message, but the dictionary passed to it is empty (`"data": {}`). Ensure that the actual data you want to return is included in this dictionary. 2. **Check for Exceptions**: Verify that there are no exceptions being raised during the HTTP request or response processing. You can add exception handling to catch and log any errors that might occur. 3. **Timeout and Error Handling**: Ensure that the timeout is set appropriately and consider implementing error retry mechanisms. The Dify plugin SDK recommends enabling error retry functionality and configuring exception handling to manage network request timeouts effectively <sup>[[2]](https://github.com/langgenius/dify-docs/blob/main/zh_CN/guides/workflow/node/http-request.md)</sup>. 4. **Debugging Techniques**: Although specific debugging techniques for the Dify plugin SDK were not found, general practices such as logging the request and response details, and using breakpoints to step through the code can help identify where the issue might be occurring. By addressing these points, you may be able to resolve the issue with the plugin not returning a response. <!-- 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/eee8b888-0555-43c6-a67e-77b33734358f?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/eee8b888-0555-43c6-a67e-77b33734358f?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/eee8b888-0555-43c6-a67e-77b33734358f?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/eee8b888-0555-43c6-a67e-77b33734358f?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/eee8b888-0555-43c6-a67e-77b33734358f?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/eee8b888-0555-43c6-a67e-77b33734358f?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/eee8b888-0555-43c6-a67e-77b33734358f?feedback_type=other)</sup>
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Reference: langgenius/dify#13177
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