stac-fastapi
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Published
20 hours ago •
stac-utils
stac-utils
Datetime as null is not accepted by the STAC FASTAPI
Hi all, if I try to upload the following STAC item file:
STAC item
{
"id": "SenET_Ebro_202005",
"bbox": [
-5.467733333,
39.606033333,
3.1200666669999997,
43.353633333
],
"type": "Feature",
"links": [
{
"rel": "collection",
"type": "application/json",
"href": "https://stac.eurac.edu/collections/SenET_Ebro_basin"
},
{
"rel": "parent",
"type": "application/json",
"href": "https://stac.eurac.edu/collections/SenET_Ebro_basin"
},
{
"rel": "root",
"type": "application/json",
"href": "https://stac.eurac.edu/"
},
{
"rel": "self",
"type": "application/geo+json",
"href": "https://stac.eurac.edu/collections/SenET_Ebro_basin/items/SenET_Ebro_202005"
}
],
"assets": {
"visual": {
"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/Subset_SenET_Ebro_20200529.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"visual"
],
"title": "SenET_Ebro_202005 quicklook"
},
"thumbnail": {
"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/Subset_SenET_Ebro_20200529.png",
"type": "image/png",
"roles": [
"thumbnail"
],
"title": "Thumbnail"
},
"daily_evaporation_20200501000000": {
"gsd": 100,
"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200501000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200501000000",
"eo:bands": [
{
"name": "daily_evaporation_20200501000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
"proj:bbox": [
-5.467733333,
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],
"proj:epsg": 4326,
"proj:shape": [
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],
"proj:transform": [
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]
},
"daily_evaporation_20200502000000": {
"gsd": 100,
"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200502000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200502000000",
"eo:bands": [
{
"name": "daily_evaporation_20200502000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
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],
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],
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},
"daily_evaporation_20200503000000": {
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"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200503000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200503000000",
"eo:bands": [
{
"name": "daily_evaporation_20200503000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
"proj:bbox": [
-5.467733333,
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],
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],
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},
"daily_evaporation_20200504000000": {
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"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200504000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200504000000",
"eo:bands": [
{
"name": "daily_evaporation_20200504000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
"proj:bbox": [
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],
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],
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]
},
"daily_evaporation_20200505000000": {
"gsd": 100,
"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200505000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200505000000",
"eo:bands": [
{
"name": "daily_evaporation_20200505000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
"proj:bbox": [
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],
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},
"daily_evaporation_20200506000000": {
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"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200506000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200506000000",
"eo:bands": [
{
"name": "daily_evaporation_20200506000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
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-5.467733333,
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],
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],
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},
"daily_evaporation_20200507000000": {
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"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200507000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200507000000",
"eo:bands": [
{
"name": "daily_evaporation_20200507000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
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],
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},
"daily_evaporation_20200508000000": {
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"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200508000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200508000000",
"eo:bands": [
{
"name": "daily_evaporation_20200508000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
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},
"daily_evaporation_20200509000000": {
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"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200509000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200509000000",
"eo:bands": [
{
"name": "daily_evaporation_20200509000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
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},
"daily_evaporation_20200510000000": {
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"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200510000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200510000000",
"eo:bands": [
{
"name": "daily_evaporation_20200510000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
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},
"daily_evaporation_20200511000000": {
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"href": "https://eurac-eo.s3-eu-west-1.amazonaws.com/SenET_Ebro_basin/daily_evaporation_SenET_Ebro_20200511000000.tif",
"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200511000000",
"eo:bands": [
{
"name": "daily_evaporation_20200511000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
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},
"daily_evaporation_20200512000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
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],
"title": "daily_evaporation_20200512000000",
"eo:bands": [
{
"name": "daily_evaporation_20200512000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
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}
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"daily_evaporation_20200513000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
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],
"title": "daily_evaporation_20200513000000",
"eo:bands": [
{
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"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
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},
"daily_evaporation_20200515000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200515000000",
"eo:bands": [
{
"name": "daily_evaporation_20200515000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
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}
],
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},
"daily_evaporation_20200516000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
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],
"title": "daily_evaporation_20200516000000",
"eo:bands": [
{
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"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
],
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"daily_evaporation_20200517000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
"data",
"tseb"
],
"title": "daily_evaporation_20200517000000",
"eo:bands": [
{
"name": "daily_evaporation_20200517000000",
"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
"description": "Daily evaporation product Ebro basin"
}
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},
"daily_evaporation_20200518000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
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],
"title": "daily_evaporation_20200518000000",
"eo:bands": [
{
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"common_name": "quality-checked daily evaporation estimates [mm day-1] corresponding to Sentinel-3 acquisition days",
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"daily_evaporation_20200519000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
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],
"title": "daily_evaporation_20200519000000",
"eo:bands": [
{
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"daily_evaporation_20200520000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
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"title": "daily_evaporation_20200520000000",
"eo:bands": [
{
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"daily_evaporation_20200521000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
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"title": "daily_evaporation_20200521000000",
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"daily_evaporation_20200522000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
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],
"title": "daily_evaporation_20200522000000",
"eo:bands": [
{
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"daily_evaporation_20200523000000": {
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"type": "image/tiff; application=geotiff; profile=cloud-optimized",
"roles": [
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],
"title": "daily_evaporation_20200523000000",
"eo:bands": [
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"collection": "SenET_Ebro_basin",
"properties": {
"datetime": null,
"gsd": 100,
"title": "SenET_Ebro_202005",
"created": "2023-10-12T14:24:00Z",
"platform": "Sentinel-2A/B, Sentinel-3A/B",
"proj:epsg": 4326,
"description": "Daily evaporation data are produced from Two-Source Energy Balanced (TSEB) model driven by ESA Sentinel (both Sentinel-2 MSI and Sentinel-3 SLSTR) and ERA5 reanalysis data",
"instruments": [
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"end_datetime": "2020-05-31T00:00:00Z",
"constellation": "Sentinel-2, Sentinel-3",
"start_datetime": "2020-05-01T00:00:00Z"
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}
If I validate this item via STAC Lint, it says that the item is correct; but, on the contrary, once I post in the STACAPI I get an error in the validation. Looking at the uploaded JSON file it shows that the property "datetime":null is not there and, as a consequence, it cannot be validated.
Is this an API bug? or am I doing something wrong?
Working on understanding issue here... when you upload the attached JSON which has the properties.datetime as null included, the JSON fails validation on the server since the properties.datetime is missing from the JSON that reaches server?
If this is the case, I would say it is very common for JSON encoders to drop keys that correspond to null values. Unfortunately, while this is a super common pattern the STAC spec has it listed as a required field.
How are you generating the POST request?
The JSON file has the properties.datetime when I'm posting it. The POST request is not failing.
I'm creating the item both via copy and paste using the STAC-FASTAPI and via Python library requests.post.
Then, when I check via API its validity, the red cross appears.
@zachcoleman, basically it seems that the JSON encoder inside this project drops datetime: null when exposing again the uploaded JSON and therefore the exposed JSON via the API is no more valid.
What backend are you using @sylar11? I would like to try and recreate the issue. Looking over the possible places that stac-fastapi would drop this field, I haven't seen any (starlette JSONResponse, ORJSONResponse w/ appropriate flags, the std library json encoder/decoder, etc.). I'm now fairly convinced this would occur from the backend.
pgstac has an open issue that may be related.
https://github.com/stac-utils/pgstac/issues/158
https://github.com/stac-utils/stac-pydantic/pull/135 addresses this issue.
But there are still a couple of PRs in front of this before this can be merged. https://github.com/stac-utils/stac-pydantic/pull/131 and #625
@zachcoleman we are using PgSTAC as backend. Please let me know if you need more information to reproduce the issue.
