Data Import

Import Neo4j-compatible Cypher scripts via CLI, REST API, or the Hammer UI. Supports semicolon-separated statements, multi-CREATE without semicolons, MERGE with ON CREATE SET, and variable binding across CREATE clauses.

CLI Import

anvil import cypher ./movies.cypher

REST API Import

curl -X POST http://localhost:7474/db/import/cypher \
  -H "Content-Type: text/plain" \
  -H "Authorization: Bearer $TOKEN" \
  --data-binary @movies.cypher

# Response:
# {
#   "total": 2,
#   "success": 2,
#   "nodesCreated": 171,
#   "relationshipsCreated": 253,
#   "errors": []
# }

Hammer UI

Navigate to the Import page. Paste a Cypher script or upload a .cypher file. The result displays statements executed, nodes created, and relationships created.

Supported Formats

FormatDescription
Semicolon-separatedStandard format: each statement ends with ;
Multi-CREATE (no semicolons)Neo4j initialDatabase.cypher format with variable binding across CREATEs
MERGEMERGE with ON CREATE SET / ON MATCH SET for upserts
MATCH + MERGEMATCH to bind variables, then MERGE relationships

Automatic Skipping

The import engine automatically skips unsupported DDL (CREATE CONSTRAINT, CREATE INDEX) and standalone MATCH without RETURN/SET/DELETE/MERGE. These count as successful in the response.

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