API responded with error code: 0: Unknown

[Kampi]

Describe the bug

I get the following error when opening the symbol menu in KiCAD

Errors loading symbols:
Error loading symbol library partdb.
Could not connect to https://inventory.lan/de/kicad-api/v1/. Errors: API responded with error code: 0: Unknown

To Reproduce

I use Part-DB as a Docker container on a local network with a local DNS. The configuration looks like this

{
	"meta": {
		"version": 1.0
	},
	"name": "Part-DB library",
	"description": "This KiCAD library fetches information externally from ",
	"source": {
		"type": "REST_API",
		"api_version": "v1",
		"root_url": "https://inventory.lan/de/kicad-api/",
		"token": "..."
	}
}

Expected behavior

No error

Screenshots
If applicable, add screenshots to help explain your problem.

Server Side

• Part-DB Version: 2.2.1 (Docker version)

[d-buchmann]

I guess this is a duplicate of #1111 to some extent...
TL;DR: KiCAD API is HTTP only.

[jbtronics]

Are you using a self-signed certificate to do HTTPs? KiCAD do not trust these, and as far i know there is no easy way to circumvent that protection mechanism (maybe if you introduce a trusted CA at system level)
There is nothing Part-DB could do about, you probably have to ask the KiCAD developers to introduce some kind of option to allow self-signed certificates.

[Kampi]

Hi @jbtronics

that sounds like the reason for it. I've used a Let's Encrypt Certificate before and switched over to a self-signed certificate.

I haven't mentioned it because it worked with Let's Encrypt before (so my guess was there HTTPS is supported) and my self-signed certificate is also working on other services so the integration into the NAS and the OS is working as well.

But I haven't thought about a KiCAD related issue because my guess was there KiCAD uses the certificates from the OS.