How can you use `versatiles serve` as your own step?

[githubtilemaker]

I would like to test this stack locally. I do not know Rust. I have experience with MapLibre, Tilemaker and mbtiles.

What I did I up to know

1. I have created the fileoutput.versatiles, which contains a German federal state.

$ versatiles probe output.versatiles 
probe "output.versatiles"
TileReader:VersaTiles {
    parameters:  {
        bbox_pyramid: [
            0: [0,0,0,0] (1),
            1: [1,0,1,0] (1),
            2: [2,1,2,1] (1),
            3: [4,2,4,2] (1),
            4: [8,5,8,5] (1),
            5: [16,10,16,10] (1),
            6: [33,21,33,21] (1),
            7: [66,42,67,43] (4),
            8: [132,85,134,87] (9),
            9: [264,171,268,175] (25),
            10: [529,343,536,351] (72),
            11: [1058,686,1072,703] (270),
            12: [2117,1372,2144,1407] (1008),
            13: [4235,2744,4289,2814] (3905),
            14: [8470,5489,8579,5629] (15510),
        ],
        decompressor: UnGzip,
        flip_y: false,
        swap_xy: false,
        tile_compression: Gzip,
        tile_format: PBF,
    },
}

2. Download the optional frontend I fetched the frontend via curl -Lo frontend.br.tar "https://github.com/versatiles-org/versatiles-frontend/releases/latest/download/frontend.br.tar" like explained here.

What I did expect

I expected the command versatiles serve -s ~/versatilesTest/frontend.br.tar ~/versatilesTest/output.versatiles to show me the frontend with tiles. Unfortunately, the tiles are not found.

$ versatiles serve -s ~/versatilesTest/frontend.br.tar ~/versatilesTest/output.versatiles
   /tiles/output/*                 <-  /home/myuser/versatilesTest/output.versatiles
server starts listening on 127.0.0.1:8080

I am working with Ubuntu 22.04. and would appreciate help.

[MichaelKreil]

As far as I can see versatiles responded correctly: Your tiles cover only Germany. So on zoom level 1 only the "north east" tile /tiles/output/1/1/0 is defined. The other 3 tiles return a 404. That shouldn't be a problem since MapLibre knows to handle 404 responses.

[githubtilemaker]

Thank you very much for your very quick reply. You are right. The first time I tried it, I didn't even notice that the existing tile wasn't complaint.

And when I now enter http://localhost:8080/tiles/output/1/1/0 as the address in the browser, a pbf file is downloaded.

So far, everything is fine.

But the tile is not displayed. What could be the reason for this? Do you have an idea?

[MichaelKreil]

Our frontend currently supports only vector tiles in shortbread scheme. We are still behind some basic features, e.g. for debugging vector tiles. :/ I would recommend using https://github.com/acalcutt/maplibre-gl-inspect ... maybe I can add it to the frontend right now ... might take a few minutes ...

[MichaelKreil]

Ok, we have a new frontend (1.1.0) that includes MapLibre Inspect. You can use that tool to inspect your vector tiles.

[githubtilemaker]

Thank you. I found the small area with the inspector. That was indeed the problem.