Issues querying against Catalog API

[eric.nallon]

I have an account created and can successfully get a bearer token, but have been unable to get anything but a 400 (Bad Request) returned from queries.

I’m following: Catalog API

I’m using python requests and placing my token in the header

headers = {"Authorization": f"Bearer {token}", 'Accept':'application/geo+json'}
sentinel_stac_url = 'https://services.sentinel-hub.com/api/v1/catalog/1.0.0/search'
post_data = {"limit": 50,
             "datetime": "2023-01-01T00:00:00Z/2023-01-07T00:00:00Z",
             "collections": ["sentinel-1-grd"]
             }
query_response = requests.post(url=sentinel_stac_url, headers=headers, json=post_data, verify=False)

[eric.nallon]

I just tried adding a random bbox in the query and got a 200. I don’t see any documentation on required fields. Hopefully that helps someone else.

[eric.nallon]

One more related question if anyone may know. I’d like to query multiple collections in one requests, but get a 400 doing that.

Using something like this in the post data: collections: [sentinel-1-grd, sentinel-2-l1c, sentinel-2-l2a]

I’ve queried other providers STAC api and was able to exclude the collections field all together and get everything back. Doesn’t seem to be the case here.

[william.ray]

Hi Eric,

To answer your first question, it seems that you didn’t include an area of interest in your request. You can build a Catalog API request using python requests with the following:

import requests

url = "https://services.sentinel-hub.com/api/v1/catalog/1.0.0/search"
headers = {
  "Content-Type": "application/json",
  "Authorization": "Bearer {token}"
}
data = {
  "collections": [
    "sentinel-1-grd"
  ],
  "datetime": "2023-01-01T00:00:00Z/2023-01-07T23:59:59Z",
  "intersects": {
    "type": "Polygon",
    "coordinates": [
      [
        [
          12.487366,
          41.907898
        ],
        [
          12.541001,
          41.893716
        ],
        [
          12.511216,
          41.88247
        ],
        [
          12.498519,
          41.891033
        ],
        [
          12.468492,
          41.890522
        ],
        [
          12.482218,
          41.906238
        ],
        [
          12.487366,
          41.907898
        ]
      ]
    ]
  },
  "limit": 10
}

response = requests.post(url, headers=headers, json=data

My example that I built in Request Builder (a great app to get familiar with the APIs) will return one result with the parameters I provided.

To answer your second question, you are limited to searching for a single data collection when using Catalog API.