I have written one service which is importing a JSONfile for monitoring internally

[kim2yung]

I have written one service for import of JSON file after getting device IP automatically, I have specify the API url for import i.e, /api/monitors/import in the application.yml file. So my question is-

1. When I give API url for localhost:1157/api/monitors/import it does not work.

2. When I give 192.145.22.87:4200/api/monitors/import then it works, it imports automatically and we can see in UI. Here 192.145.22.87 is where I am running other hertzbeat remotely.

3. port 1157 is for backend where swagger is also running but import is working on 4200 port which is for frontend. WHY?

4. When I give localhost:4200/api/monitors/import it does not import because Backend gives exception url NOT FOUND. Therefore FrontEnd I cannot start; If front can start without backend then it surely import.

Can I do local import? How.

[tomsun28]

hi, If other third-party systems are integrated with Hertzbeat, you should use its API, i.e. 1157/api/xxx instead of port 4200, which is the startup port of the local front end.

[kim2yung]

I have used 1157/api/xxx also but the error I am getting is- I/O error on POST request for "http://localhost:1157/api/monitors/import": Failed to connect to localhost/[0:0:0:0:0:0:0:1]:1157

when I use 4200/ai/xxx- 504 Gateway Timeout: "Error occurred while trying to proxy: localhost:4200/api/monitors/import"

[yunfan24]

Hi, please ensure that you have started the backend service locally. You mentioned that the remote URL 192.145.22.87:4200/api/monitors/import works fine. You can try accessing 192.145.22.87:1157/api/monitors/import to check if the import is successful.

I couldn't reproduce your issue locally.

[kim2yung]

I have tested with "192.145.22.87:1157/api/monitors/import" , in postman import was success but not showing that monitor on UI ie,192.145.22.87:4200

But when I test with "192.145.22.87:4200/api/monitors/import" , in postman import is successful and also showing in UI ie, 192.145.22.87:4200

WHY frontend and backend both acting as different identity??????

[yunfan24]

1. Due to browser cross-origin restrictions, frontend requests are forwarded to the backend through a proxy. This makes the browser believe that the backend service and the current page domain are the same. Otherwise, the browser will block the request unless the backend is configured to allow cross-origin requests. Our project uses a frontend proxy to resolve cross-origin issues.
2. I couldn't reproduce your issue. I used Postman to send a request to endpoint 1157, and the import was successful. After refreshing the frontend page, I saw the newly imported monitor. Could you please provide relevant screenshots?

[kim2yung]

Hi, Please refer the screen shot. Any solution for this. In localhost there is problem. But in remote hertzbeat it importing for 1157- but in UI not reflecting, for 4200- in UI its reflecting

[kim2yung]

Hi, Now only I have checked that In localhost UI, I am not able to export/Import any monitor from UI itself, It says "export failed" same for import. What could be the reason. Any solution for this?

[yunfan24]

Hi, Now only I have checked that In localhost UI, I am not able to export/Import any monitor from UI itself, It says "export failed" same for import. What could be the reason. Any solution for this?

It seems that there is an import error. We need to check the backend error logs. How did you start heartzbeat locally, and have you made any modifications?

[leo-934]

First, you have port 4200, so I think you started hertzbeat from the source code. Second, 4200 is the front-end port, and 1157 is the back-end port, which means that normally, you can successfully import json from port 1157, but not from 4200.

I think you need to pay attention to the following two issues. The first is how your program is started, whether it is the same as the master branch, and whether other parameters are added. The second is whether the content of your json file is correct and whether it is exported from the hertzbeat page.

I have done some tests for you.
localhost:1157 success
192.168.1.72:1157 success
localhost:4200 failed
which is different from the bahavior you showed.

In order to help you troubleshoot the problem, Please check your environment provide the way and command to start the front-end and back-end, and the content of the json file used for testing.

[kim2yung]

Actually I have made one service which is consuming device ip and send it to json generator service (I have made) and after generating JSON file it will hit the import api which I have specified in application.yml with localhost:1157/api/xxx.

Now, when I start the backend it does not find the server 1157 because it is still not fully started, This might be the reason why it's failing.

And when I give the remote hertzbeat url in application.yml it works because that remote hertzbeat is up and running on vm.

So, is this approach of importing or hitting api is correct? ( Like hitting own api )

I need a solution to resolve this issue.

[leo-934]

why server 1157 is not fully started?
and what "giving the remote hertzbeat url in application.yml" means? Please give more detailed information.