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Neo4j driver for Elixir

License: Apache License 2.0

Elixir 96.72% Shell 3.28%

bolt bolt-protocol database-driver driver elixir graphdb neo4j neo4j-driver

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hickscorp aakashjhawar

boltx's Issues

Error querying all nodes after buffering change in 4.0

I am getting this error while querying using Boltx. The same query works if I try it on the Neo4j Browser.

** (DBConnection.ConnectionError) bad return value: {:error, %{code: :failure, message: %MatchError{term: << 101, 91, 100,  102, 81, 101, 107, 111, 109, 111, 42, ...>>}}}
    (db_connection 2.6.0) lib/db_connection.ex:1366: DBConnection.handle_common_result/3
    (db_connection 2.6.0) lib/db_connection.ex:1607: DBConnection.run/6
    (db_connection 2.6.0) lib/db_connection.ex:743: DBConnection.parsed_prepare_execute/5
    (db_connection 2.6.0) lib/db_connection.ex:735: DBConnection.prepare_execute/4
    (boltx 0.0.5) lib/boltx.ex:149: Boltx.do_query/4

Can you please check this?

Tests for servers rejecting connection in handshake

Error getting a node with a Datetime field

I got the following error while running the query.
Boltx.query(Boltx, "MATCH(n) RETURN n")

After debugging more, I found out if the query has MATCH command in it, then it throws error.

** (DBConnection.ConnectionError) bad return value: {:error, %{code: :failure, message: %FunctionClauseError{module: Boltx.PackStream.Unpacker, function: :unpack, arity: 1, kind: nil, args: nil, clauses: nil}}}
    (db_connection 2.4.3) lib/db_connection.ex:1267: DBConnection.handle_common_result/3
    (db_connection 2.4.3) lib/db_connection.ex:1508: DBConnection.run/6
    (db_connection 2.4.3) lib/db_connection.ex:644: DBConnection.parsed_prepare_execute/5
    (db_connection 2.4.3) lib/db_connection.ex:636: DBConnection.prepare_execute/4
    (boltx 0.0.4) lib/boltx.ex:149: Boltx.do_query/4

Can you please help me?

Thank You

Great work here! Thank you for adding support for Neo4j v5!

I've created this library Ex4j recently to add support for better abstractions on Neo4j instead of writing strings manually to retrieve data (it reminds 1990's) as well as being able to wrap the response in a struct similar to ecto.

I intend to replace bolt.sips with your driver that seems better and support the newer versions.

(Mix) Could not start application, returned an error: shutdown: failed to start child: Boltx

I've added Boltx to my Supervision tree.

Config:

config :boltx, Bolt,
  uri: System.get_env("NEO4J_HOST") || "bolt://localhost:7687",
  auth: [username: "neo4j", password: System.get_env("NEO4J_PASSWORD") || "password"],
  user_agent: "boltxTest/1",
  pool_size: 15,
  max_overflow: 3,
  prefix: :default

application.ex

%{
       id: Boltx,
       start: {Boltx, :start_link, Application.get_env(:boltx, Bolt)}
}

While starting the server, I got the following error.

** (Mix) Could not start application accounts_service: AccountsService.Application.start(:normal, []) returned an error: shutdown: failed to start child: Boltx
    ** (EXIT) an exception was raised:
        ** (UndefinedFunctionError) function Boltx.start_link/6 is undefined or private
            (boltx 0.0.3) Boltx.start_link({:uri, "bolt://localhost:7687"}, {:auth, [username: "neo4j", password: "password"]}, {:user_agent, "boltxTest/1"}, {:pool_size, 15}, {:max_overflow, 3}, {:prefix, :default})
            (stdlib 3.17.2) supervisor.erl:414: :supervisor.do_start_child_i/3
            (stdlib 3.17.2) supervisor.erl:400: :supervisor.do_start_child/2
            (stdlib 3.17.2) supervisor.erl:384: anonymous fn/3 in :supervisor.start_children/2
            (stdlib 3.17.2) supervisor.erl:1250: :supervisor.children_map/4
            (stdlib 3.17.2) supervisor.erl:350: :supervisor.init_children/2
            (stdlib 3.17.2) gen_server.erl:423: :gen_server.init_it/2
            (stdlib 3.17.2) gen_server.erl:390: :gen_server.init_it/6
            (stdlib 3.17.2) proc_lib.erl:226: :proc_lib.init_p_do_apply/3

Can you please check this, and suggest a better way to add Boltx to the application supervisor?

Standardize server response error handling

Cooperation

First of all, thank you for your great work on boltx.

In my organization EnBW we are working on a project where we use Elixir and Neo4j. This week we switched to boltx.

We have been thinking about how we can support the development of boltx (e.g. contributing or co-maintaining). Do you have any thoughts on this?

Kind regards