Programming language: Go
Latest version: v1.3.1

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neoism - Neo4j client for Go

Neoism Logo

Package neoism is a Go client library providing access to the Neo4j graph database via its REST API.


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This driver is fairly complete, and may now be suitable for general use. The code has an extensive set of integration tests, but little real-world testing. YMMV; use in production at your own risk.


Go 1.1 or later is required.

Tested against Neo4j 2.2.4 and Go 1.4.1.



go get -v github.com/jmcvetta/neoism


Neoism is versioned using gopkg.in.

Current release is v1

go get gopkg.in/jmcvetta/neoism.v1


See GoDoc or Go Walker for automatically generated documentation.


Connect to Neo4j Database

db, err := neoism.Connect("http://localhost:7474/db/data")

Create a Node

n, err := db.CreateNode(neoism.Props{"name": "Captain Kirk"})

Issue a Cypher Query

// res will be populated with the query results.  It must be a slice of structs.
res := []struct {
        // `json:` tags matches column names in query
        A   string `json:"a.name"` 
        Rel string `json:"type(r)"`
        B   string `json:"b.name"`

// cq holds the Cypher query itself (required), any parameters it may have 
// (optional), and a pointer to a result object (optional).
cq := neoism.CypherQuery{
    // Use backticks for long statements - Cypher is whitespace indifferent
    Statement: `
        MATCH (a:Person)-[r]->(b)
        WHERE a.name = {name}
        RETURN a.name, type(r), b.name
    Parameters: neoism.Props{"name": "Dr McCoy"},
    Result:     &res,

// Issue the query.
err := db.Cypher(&cq)

// Get the first result.
r := res[0]

Issue Cypher queries with a transaction

tx, err := db.Begin(qs)
if err != nil {
  // Handle error

cq0 := neoism.CypherQuery{
  Statement: `MATCH (a:Account) WHERE a.uuid = {account_id} SET balance = balance + {amount}`,
  Parameters: neoism.Props{"uuid": "abc123", amount: 20},
err = db.Cypher(&cq0)
if err != nil {
  // Handle error

cq1 := neoism.CypherQuery{
  Statement: `MATCH (a:Account) WHERE a.uuid = {account_id} SET balance = balance + {amount}`,
  Parameters: neoism.Props{"uuid": "def456", amount: -20},
err = db.Cypher(&cq1)
if err != nil {
  // Handle error

err := tx.Commit()
if err != nil {
  // Handle error



  • Node (create/edit/relate/delete/properties)
  • Relationship (create/edit/delete/properties)
  • Legacy Indexing (create/edit/delete/add node/remove node/find/query)
  • Cypher queries
  • Batched Cypher queries
  • Transactional endpoint (Neo4j 2.0)
  • Node labels (Neo4j 2.0)
  • Schema index (Neo4j 2.0)
  • Authentication (Neo4j 2.2)

To Do:

  • Streaming API support - see Issue #22
  • Unique Indexes - probably will not expand support for legacy indexing.
  • Automatic Indexes - "
  • High Availability
  • Traversals - May never be supported due to security concerns. From the manual: "The Traversal REST Endpoint executes arbitrary Groovy code under the hood as part of the evaluators definitions. In hosted and open environments, this can constitute a security risk."
  • Built-In Graph Algorithms
  • Gremlin


Neoism's test suite respects, but does not require, a NEO4J_URL environment variable. By default it assumes Neo4j is running on localhost:7474, with username neo4j and password foobar.

export NEO4J_URL=http://your_user:[email protected]/db/data/
go test -v .

If you are using a fresh untouched Neo4j instance, you can use the included set_neo4j_password.sh script to set the password to that expected by Neoism's tests:

sh set_neo4j_password.sh


Support and consulting services are available from Silicon Beach Heavy Industries.


Contributions in the form of Pull Requests are gladly accepted. Before submitting a PR, please ensure your code passes all tests, and that your changes do not decrease test coverage. I.e. if you add new features also add corresponding new tests.


This is Free Software, released under the terms of the GPL v3.

*Note that all licence references and agreements mentioned in the neoism README section above are relevant to that project's source code only.