Investigate 'assets must be defined' error in custom stac titiler with path prefix and cloudfront

[anayeaye]

What

The custom STAC titiler endpoint throws errors in the dev VEDA deployment where we are also implementing path prefixes and using a cloudfront distribution. The same requests are successful with a new deployment of the backend with the latest titiler-pgstac upgrades.

Note 1 these observations are from updating veda-docs notebooks and the patterns do not appear to be currently used by our dashboards. If the appropriate solution is to transition to this Items endpoint pattern stac/collections/{collectionId}/items/{itemId} we can update the notebooks after.

Note 2 this also might be an opportunity to investigate the reverse proxy support added at v0.5+ of pgstac-titiler now that we have upgraded.

Examples

stac/tilejson.json

// 20231023100506
// https://dev.delta-backend.com/api/raster/stac/tilejson.json?collection=no2-monthly&item=OMI_trno2_0.10x0.10_202002_Col3_V4.nc&assets=cog_default&color_formula=gamma+r+1.05&colormap_name=cool&rescale=-10183824872833024,50064805976866816

{
  "detail": "assets must be defined either via expression or assets options."
}

but staging (older version of pgstac-titiler) and test (latest titler) are OK
// 20231023100619
// https://staging-raster.delta-backend.com/stac/tilejson.json?collection=no2-monthly&item=OMI_trno2_0.10x0.10_202002_Col3_V4.nc&assets=cog_default&color_formula=gamma+r+1.05&colormap_name=cool&rescale=-10183824872833024,50064805976866816

// 20231023100649
// https://test-raster.delta-backend.com/stac/tilejson.json?collection=no2-monthly&item=OMI_trno2_0.10x0.10_202002_Col3_V4.nc&assets=cog_default&color_formula=gamma+r+1.05&colormap_name=cool&rescale=-10183824872833024,50064805976866816

/stac/info

// 20231023101024
// https://dev.delta-backend.com/api/raster/stac/info?collection=no2-monthly&item=OMI_trno2_0.10x0.10_202002_Col3_V4.nc&assets=cog_default

{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "collection"
      ],
      "msg": "Field required",
      "input": null,
      "url": "https://errors.pydantic.dev/2.4/v/missing"
    },
    {
      "type": "missing",
      "loc": [
        "query",
        "item"
      ],
      "msg": "Field required",
      "input": null,
      "url": "https://errors.pydantic.dev/2.4/v/missing"
    }
  ]
}

AC

• custom stac endpoints of raster API work as expected

[anayeaye]

#241

[anayeaye]

resolved by overwriting host header of lambda api