React Frontend in Docker Compose Failing to Route API Calls

Frontend and Backend Development
1

React frontend in Docker Compose cannot reach Spring Boot API via nginx. Network tests pass, but requests fail. See example:

server {
  listen 80;
  location /service {
    proxy_pass http://api_main:8081;
  }
}
2

hey all, im wondering if the issue might be a path mismatch in nginx. maybe the /service path isn’t aligning with your actual api endpoints? anyone else havn’t encountered that? curious to hear ur thoughts on tweaking path configuration in docker-compose setups

3

hey, maby the isssue is simply with how the proxy_pass is defned. i had similar prob and ended up adjusting the path so that ngnix routing actually hits the correct api endpoint. try checking the exact endpoint conf

4

In my experience, verifying that the container names in docker-compose match those referenced by nginx is crucial. I encountered an issue where the React container’s request did not reach the backend API due to a subtle mismatch in service naming conventions. I resolved this by aligning the service alias defined in docker-compose with the proxy_pass URL and ensuring that both containers operated on the same network. Additionally, reviewing nginx logs helped identify minor configuration errors that caused routing discrepancies. A careful check of these details resolved the communication issues in my setup.

5

hey guys, i’ve run into a similar hiccup before when env vars and names got mixed up. maybe double-checking service aliases in compose might help. anyone here tried toggling between using container names and network aliases? what did you notice?