NetworkError: Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'http://localhost:8080/query?id=1'

[olazaah]

I am having the same I had with the 2nd task, after running the npm start, opening the react app, clicking the bank stream data button I am getting this error as shown below. I tried all the troubleshooting tips and I also tried downloading the node module provided in the task material. I am using a windows 10 operating system. Note before now I already had node and npm installed on my system so I did not install the nvm as described.

[Grv-Singh]

Start Server App in /datafeed by python3 server3.py

[unfettered-one]

I am getting the same error and given solution is not working..?

[dejazzhands]

same thing here.

[alt-shreya]

check if your ports are aligned, ie, your backend server server.py should be deployed at the same port that is mentioned in the file called DataStreamer.ts

[Aaronturas]

@Grv-Singh Thanks very much! That worked for me! Had to think about it for a bit but to simplify it for everyone you must:

1. Go to server.py
2. Run Python File
3. New/Open Terminal
4. Type: "npm start"
5. Boom! It should work :)

I used VSCode

[Dzholdoshev]

Hello World! try to install dateutil first. pip install python-dateutil use this command, then npm start

[at1230]

I'm getting same error , I have run server.py file first also did all step but still getting this error.

[Mukulshitole]

https://youtu.be/A_GKr7JCWTY
watch this video it would help

[SaurabhVerma-007]

Just run this command first from the root directory "python datafeed/server3.py" then open new terminal in the same project and type "npm start"

[SaurabhVerma-007]

https://youtu.be/A_GKr7JCWTY watch this video it would help

Thanks! It worked