Determine how many granules exist over this time and area of interest #10
Comments
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Can you share the value of Possibly we need to add a check that the |
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The results is empty, is there somthing wrong with the granule_search_url = 'https://cmr.earthdata.nasa.gov/search/granules', because this link returns an error. |
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That value for Can you please provide:
I think the issue may be with the data you entered; I was able to reproduce this issue by specifying an invalid bounding box. @asteiker I think we need a validity check before trying to access # or `if 'errors' in results:`
if 'feed' not in results:
# An error occurred, handle!
# should we check before json.loads() and print `response.content` instead of `results`?
# That way if we receive invalid JSON, we can see what the response looks like instead
# of failing with:
# json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
# Maybe this isn't a realistic case to be concerned with.
print(f'An error occurred: {results["errors"]}')
print(f'Request URL: {response.request.url}')
break # or raise? ¯\_(ツ)_/¯With this new check, the code outputs a less cryptic message for my invalid input data: |
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Thanks for your answer, it can work now!
Matt Fisher ***@***.***> 于2023年6月29日周四 18:50写道：
… That value for granule_search_url looks right. When you click that link,
you're getting an error because you haven't passed any search parameters.
The code above is doing some extra work to pass those parameters to the
server with requests.get(..., params=search_params, ...) and that is
causing the request URL to be modified to add the key-value pairs in
search_params as URL query parameters. Example:
>>> response = requests.get('https://example.com', params={'foo': 'bar'})
>>> response.request.url
'https://example.com/?foo=bar'
>>> response.ok
True
>>> response.status_code
200
>>> response.content
b'<!doctype html>\n<html>\n<head>\n <title>Example Domain</title>\n\n <meta charset="utf-8" />\n <meta http-equiv="Content-type" content="text/html; charset=utf-8" />\n <meta name="viewport" content="width=device-width, initial-scale=1" />\n <style type="text/css">\n body {\n background-color: #f0f0f2;\n margin: 0;\n padding: 0;\n font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;\n \n }\n div {\n width: 600px;\n margin: 5em auto;\n padding: 2em;\n background-color: #fdfdff;\n border-radius: 0.5em;\n box-shadow: 2px 3px 7px 2px rgba(0,0,0,0.02);\n }\n a:link, a:visited {\n color: #38488f;\n text-decoration: none;\n }\n @media (max-width: 700px) {\n div {\n margin: 0 auto;\n width: auto;\n }\n }\n </style> \n</head>\n\n<body>\n<div>\n <h1>Example Domain</h1>\n <p>This domain is for use in illustrative examples in documents. You may use this\n domain in literature without prior coordination or asking for permission.</p>\n <p><a href="https://www.iana.org/domains/example">More information...</a></p>\n</div>\n</body>\n</html>\n'
Can you please provide:
- response.request.url: The actual URL the code is querying
- response.ok: Whether the query was successful
- response.content: The raw content received from the server. If the
content is not JSON (as in the example above), the json.loads step
would fail.
I think the issue may be with the data you entered; I was able to
reproduce this issue by specifying an invalid bounding box.
@asteiker <https://github.com/asteiker> I think we need a validity check
before trying to access results['feed']:
if 'feed' not in results:
# An error occurred, handle!
# should we check before json.loads() and print `response.content` instead of `results`?
# That way if we receive invalid JSON, we can see what the response looks like instead
# of failing with:
# json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
print(f'An error occurred: {results["errors"]}')
break # or raise? ¯\_(ツ)_/¯
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Great! Thanks for surfacing this issue :) I'm going to close this issue and open a new one for the error handling. |
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This search should be replaced with I've added a class to handle Service capabilities as well. Maybe a plugin? |
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I run the Customize and Access NSIDC Data to download the data, but an error occured in the part of Determine how many granules exist over this time and area of interest.
Is there something wrong? all the parameters are default.
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