Error Codes

Errors are returned as { "code": "…", "message": "…" }.

Requests

Code	HTTP	Meaning
`search-json-request-parse-failed`	400	Malformed request body
`search-invalid-search-request`	400	The query request is invalid for the backend
`search-invalid-document`	400	The document failed validation
`search-backend-not-found`	400	Unknown backend name
`search-document-not-found`	404	Unknown document schema
`search-index-not-found`	404	The index/collection does not exist
`search-tenants-backend-and-documents-not-found`	400	The tenant has no configured backends/documents (unknown tenant)
`search-no-primary-key-in-document`	400	The document declares no key field
`search-multiple-primary-key-in-document`	400	The document declares more than one key field
`search-invalid-field-type`	400	A field has an unsupported type
`search-unknown-backend`	400	Unsupported backend `type`/`backend` combination
`search-upsupported-type-for-backend`	400	A field type isn’t supported by the chosen backend

Code	HTTP	Meaning
`search-adding-document-failed`	500	Insert failed
`search-search-in-index-failed`	500	Query execution failed
`search-delete-in-index-failed`	500	Delete failed
`search-creating-index-failed` / `search-create-index-for-tenant-failed`	500	Index/collection/table creation failed
`search-init-search-backend-failed`	500	Backend client could not be initialized
`search-milvus-collection-load-failed`	500	Milvus collection failed to load
`search-backend-parsing-failed` / `search-field-parsing-failed`	500	Definition parse error
`search-backend-service-config-not-found`	500	Backend connection params missing from tenant config
`search-computed-field-eval-failed`	500	A computed field’s expression failed to evaluate
`search-expression-not-matched-in-data`	400	A computed-field expression produced no value
`search-invalid-result-type-found-during-search`	500	The backend returned an unexpected result shape