http.send in docker with fastAPi and mongoDB

[davidArch]

Hello,
I am having trouble using http.send.
This works:

curl -X GET "http://localhost:8000/models/by-name/newModel" 
{"message":"Modell erfolgreich abgerufen","data":{"_id":"67b6de1405094635dabc5922","name":"newModel","algorithm":"mlp"}}

This does not. Its loading for a while and then gives me a 200 OK. I tried localhost:8000 instead of app:8000 but does not work either:

package create_model
import future.keywords.in

response := http.send({
        "method": "get",
        "url": "http://app:8000/models/by-name/newModel"
    })

deny contains message if {
    input.name == "newModel"
    response.body.data.name == "newModel"
    message := "name already exists in DB"
}

using this request:

curl -X POST "http://localhost:8000/models/create-model" -H "Content-Type: application/json" -d '{
>     "name": "newModel",
>     "algorithm": "mlp"
> }'
{"message":"Modell erfolgreich erstellt","data":{"name":"newModel","algorithm":"mlp","_id":"67d0485c2b8ec26e92182ba4"}}

Simple deny rules evaluating input "name" or "algorithm" do work correctly.
I would highly appreciate any feedback.

Thank you and kind regards
David

main.rego:

package main
import data.create_model

default allow := false

allow if {
    count(create_model.deny) == 0
}

docker.compose

services:
  mongo:
    image: mongo:latest
    ports:
      - "27017:27017"
    volumes:
      - mongo_data:/data/db
    networks:
      - opa-network

  opa:
    image: openpolicyagent/opa:latest
    ports:
      - "8181:8181"
    command: "run --server --addr :8181"
    networks:
      - opa-network

  app:
    build: .
    ports:
      - "8000:8000"
    depends_on:
      - mongo
      - opa
    networks:
      - opa-network

networks:
  opa-network:

volumes:
  mongo_data:

[anderseknert]

Hi there!

I'm not sure what's wrong here, but you could try setting raise_error to false in the http.send configuration object, which will give you back any errors as part of the response instead of halting evaluation. Then you could print that to try and see if you get any clues.

https://www.openpolicyagent.org/docs/latest/policy-reference/#http