Meadowlark - Error Messages

As of Meadowlark 0.4.0, this is a comprehensive list of the 400 and 500 ranges of error messages Meadowlark responds with along with the reasons for those responses. This does not include 500 Internal Server Error itself as these are internal failures for a variety of reasons, usually from third-party library exceptions. This also does not include various security-related reasons behind 404 responses.

Authorization Failure

Reason	HTTP Code	Message
Invalid Authorization header	400	{ error: 'Invalid authorization header' }
Provided JWT is not well-formed	401	None
Provided JWT is inactive	401	None
Oauth server is unreachable	502	None

Endpoint Validation

Reason	HTTP Code	Message
Resource endpoint is invalid	404	{ error: 'Invalid resource XZY. The most similar resource is XYZ' }

Body Validation

Reason	HTTP Code	Message
No body on POST or PUT	400	{ error: 'Missing body' }
Malformed body	400	{ error: 'Malformed body: <<error from JSON.parse()>>' }
Malformed document UUID on PUT, GET, DELETE	404	None
JSON Schema validation failure	400	{ error: [<<validationError1>>, <<validationError2>>, …] } where a validationError looks like { message: <<explains error>>, path: JSONPath, context: <<lower level validation library info>> }
Two document values must be equal but are not	400	{ error: ['Constraint failure: document paths <<JSONPath1>> and <<JSONPath2>> must have the same values', …] }

Query Validation

Reason	HTTP Code	Message
Limit and offset must be non-negative	400	{error: 'Must be set to a numeric value >= 0'}
Limit required with offset	400	{error: 'Limit must be provided when using offset'}
Query includes property not on resource	400	{ error: 'The request is invalid.', modelState: ['<<ResourceName>> does not include property <<InvalidPropertyName>>', …] }
Query server is unreachable	502	None

Delete Failure

Backend Response Error	Reason	HTTP Code	Message
DELETE_FAILURE_REFERENCE	Attempt to delete document referenced by other documents	409	{ error: { message: 'The resource cannot be deleted because it is a dependency of other documents', blockingUris: ['/v5.0-pre.2/edfi/students/a-referencing-document-uuid', …]
DELETE_FAILURE_WRITE_CONFLICT	Attempt to modify a document in a transaction that a concurrent transaction has modified	404	{ error: { message: 'Write conflict due to concurrent access to this or related resources' }

Update Failure

Backend Response Error	Reason	HTTP Code	Message
-	Id not in URL	400	None
-	Id field in document does not match id in URL	400	{ error: { message: 'The identity of the resource does not match the identity in the updated document.' }
UPDATE_FAILURE_REFERENCE	Submitted document references one or more non-existent documents	409	{ error: { message: 'Reference validation failed', failures: [ {resourceName: 'Student', identity: { studentId: '123' }, …] } }
UPDATE_FAILURE_IMMUTABLE_IDENTITY	Attempt to modify document identity on a resource where the identity cannot be changed	400	{ error: { message: 'The identity fields of the document cannot be modified' } }
UPDATE_FAILURE_CONFLICT	Attempt to change the identity of a document to the identity of an existing document with the same resource superclass	409	{ error: { message: 'Update failed: the identity is in use by 'School' which is also a(n) 'EducationOrganization', blockingUris: ['/v5.0-pre.2/edfi/schools/a-school-document-with-same-identity', …] } }
UPDATE_FAILURE_WRITE_CONFLICT	Attempt to modify a document in a transaction that a concurrent transaction has modified	409	{ error: { message: 'Write conflict due to concurrent access to this or related resources' }

Upsert Failure

Backend Response Error

Reason

HTTP Code

Message

UPDATE_FAILURE_REFERENCE /

INSERT_FAILURE_REFERENCE

Submitted document references one or more non-existent documents

409

{ error: { message: 'Reference validation failed', failures: [ {resourceName: 'Student', identity: { studentId: '123' }, …] } }

INSERT_FAILURE_CONFLICT

Attempt to insert a document with the identity of an existing document with the same resource superclass

409

{ error: { message: 'Insert failed: the identity is in use by 'School' which is also a(n) 'EducationOrganization', blockingUris: ['/v5.0-pre.2/edfi/schools/a-school-document-with-same-identity', …] } }

UPSERT_FAILURE_WRITE_CONFLICT

Attempt to modify a document in a transaction that a concurrent transaction has modified

409

{ error: { message: 'Write conflict due to concurrent access to this or related resources' }