omnigraph/docs/user/quickstart.md
Ragnor Comerford a68896c4a0
docs(readme): embedded quick-start run-through + trimmed Clients (#266)
* docs(readme): add embedded quick-start run-through + trim Clients

- Quick start: a copy-pasteable embedded (local file) run-through
  (schema → init → load → query → branch), followed by a "Storage backends"
  table that surfaces the one thing that changes across embedded / S3 object
  storage / RustFS-MinIO — the graph address — with a pointer to cluster mode
  for served multi-graph deployments.
- Clients: collapse to a two-line pointer (npm packages + omnigraph-ts repo);
  Python SDK marked coming soon.

* docs(readme,quickstart): fix init addressing + drop non-parsing schema commas

Addresses PR review (both verified against source):

- README "Storage backends": `init` takes the graph address as a positional
  argument, not `--store` (`Command::Init { uri: String }`) — Codex. Table now
  shows bare addresses and a note on which flag each verb uses.
- docs/user/quickstart.md: drop trailing commas in the schema. The .pg grammar
  (`prop_decl = { ident ~ ":" ~ type_ref ~ annotation* }`, node body
  `(prop_decl | body_constraint)*`, comma not in WHITESPACE) has no comma rule,
  so `name: String,` fails to parse — Greptile.
2026-06-16 12:36:11 +02:00

2.3 KiB

Quickstart

This walks the core loop end to end: define a schema, initialize a graph, load data, query it, and use a branch. It uses a local file-backed graph; swap the path for an s3://… URI to run the same flow against object storage.

Install the omnigraph CLI first.

1. Write a schema

A schema (.pg) declares your node and edge types. Save this as schema.pg:

node Person {
  name: String
  title: String?
}

See the schema language for types, constraints, and edges.

2. Initialize the graph

omnigraph init --schema schema.pg graph.omni

init creates an empty graph at the given URI with your schema applied.

3. Load data

load is the single bulk-write command. --mode is required (overwrite | append | merge):

omnigraph load --data people.jsonl --mode overwrite graph.omni

people.jsonl is newline-delimited JSON, one record per line. For finer-grained or inline writes, see mutations.

4. Query

Write a query (.gq) — save as queries.gq:

query find_people($title: String) {
  match { $p: Person { title: $title } }
  return { $p.name }
}

Run it:

omnigraph query find_people --query queries.gq \
  --params '{"title":"Engineer"}' --format table --store graph.omni

The query name is positional; --query points at the .gq source and --store addresses the graph's storage directly.

The query language covers match/return/order, and search covers vector and full-text search.

5. Work on a branch

Branches isolate changes until you merge them — Git-style, across the whole graph:

omnigraph branch create review/new-hires graph.omni
omnigraph load --data new-hires.jsonl --mode append --branch review/new-hires graph.omni
# inspect the branch, then integrate it
omnigraph branch merge review/new-hires --into main graph.omni

See branches & commits and merging.

Next steps