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https://issues.apache.org/jira/browse/COUCHDB-41?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12675450#action_12675450
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Till Klampaeckel commented on COUCHDB-41:
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I'd like more obvious "error messages":
"Document not found."
"Database does not exist."
> Differentiate between not existent database and not existant document in
> response on 404
> ----------------------------------------------------------------------------------------
>
> Key: COUCHDB-41
> URL: https://issues.apache.org/jira/browse/COUCHDB-41
> Project: CouchDB
> Issue Type: Improvement
> Components: HTTP Interface
> Environment: CouchDB 0.7.2
> Reporter: Kore Nordmann
> Assignee: Jan Lehnardt
> Priority: Minor
>
> Currently it is not possible to know from a request on a not existent
> document in the database, if the database does not exist, or if it is just
> the document which is missing.
> It would be nice to have this information in the response JSON structure, so
> that the application using the CouchDB could handle such errors more
> gracefully. An extract from a CouchDB interaction showing the problem:
> == Ensure database is absent
> DELETE /test HTTP/1.0
> Host: localhost
> HTTP/1.0 404 Object Not Found
> Server: inets/develop
> Date: Tue, 15 Apr 2008 20:54:20 GMT
> Cache-Control: no-cache
> Pragma: no-cache
> Expires: Tue, 15 Apr 2008 20:54:20 GMT
> Connection: close
> Content-Type: text/plain;charset=utf-8
> {"error":"not_found","reason":"missing"}
> == Try GET on absent database
> GET /test/not_existant HTTP/1.0
> Host: localhost
> HTTP/1.0 404 Object Not Found
> Server: inets/develop
> Date: Tue, 15 Apr 2008 20:54:20 GMT
> Cache-Control: no-cache
> Pragma: no-cache
> Expires: Tue, 15 Apr 2008 20:54:20 GMT
> Connection: close
> Content-Type: text/plain;charset=utf-8
> {"error":"not_found","reason":"missing"}
> == Create database, but not the document
> PUT /test HTTP/1.0
> Host: localhost
> HTTP/1.0 201 Created
> Server: inets/develop
> Date: Tue, 15 Apr 2008 20:54:20 GMT
> Cache-Control: no-cache
> Pragma: no-cache
> Expires: Tue, 15 Apr 2008 20:54:20 GMT
> Connection: close
> Content-Type: text/plain;charset=utf-8
> {"ok":true}
> == Try to fetch document again
> GET /test/not_existant HTTP/1.0
> Host: localhost
> HTTP/1.0 404 Object Not Found
> Server: inets/develop
> Date: Tue, 15 Apr 2008 20:54:20 GMT
> Cache-Control: no-cache
> Pragma: no-cache
> Expires: Tue, 15 Apr 2008 20:54:20 GMT
> Connection: close
> Content-Type: text/plain;charset=utf-8
> {"error":"not_found","reason":"missing"}
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