"An invalid response was received from the upstream server" when trying to ping


I’m trying to import new services in Kong, but I keep getting the same error message (502: Bad Gateway). The service is the EdgeX core_data ping and it works without KONG. It should respond with ‘pong’. The response message says that “An invalid response was received from the upstream server”.

HTTP request:

curl -i -X GET --url http://localhost:8000/ --header ‘Host: coredata.com

This is the service :

“host”: “”,
“created_at”: 1547827284,
“connect_timeout”: 60000,
“id”: “9fbe2306-6eed-4f33-be22-8e51900e043c”,
“protocol”: “http”,
“name”: “core_data_go”,
“read_timeout”: 60000,
“port”: 48080,
“path”: “/api/v1/ping”,
“updated_at”: 1547827284,
“retries”: 5,
“write_timeout”: 60000

This is the route to the service:

“next”: null,
“data”: [
“created_at”: 1547827379,
“methods”: null,
“id”: “ac2a985f-f329-49ed-a280-37b36311efd2”,
“service”: {
“id”: “9fbe2306-6eed-4f33-be22-8e51900e043c”
“name”: null,
“hosts”: [
“updated_at”: 1547827379,
“preserve_host”: false,
“regex_priority”: 0,
“paths”: null,
“sources”: null,
“destinations”: null,
“snis”: null,
“protocols”: [
“strip_path”: true
I think my problem is quite basic and should have an easy solution, but somehow I can’t figure it out. Some help would be really appreciated!



I faced similar problem as yours on my 1st try with KONG. From your sample response, it seems that you have registered your service with If you have installed KONG as docker, this will point to docker’s, not your host machine’s Instead, you have to register your service with your local host machine’s IP address. After this change, it worked for me. Sample response of create service below:

    "host": "",
    "created_at": 1560770064,
    "connect_timeout": 60000,
    "id": "5ece1209-b68d-4f7d-8737-00068daa25f9",
    "protocol": "http",
    "name": "get-all-orderssss",
    "read_timeout": 60000,
    "port": 9080,
    "path": "/api/orders/",
    "updated_at": 1560770064,
    "retries": 5,
    "write_timeout": 60000,
    "tags": null

Your ping API will work same way with IP address.
http://localhost/api/v1/ping == http://xx.xx.xx.xxx/api/v1/ping