init

ts/packages/cli/src/commands/triples.ts

@@ -0,0 +1,48 @@
+/**
+ * Triples query CLI commands.
+ *
+ * Query the knowledge graph for subject-predicate-object triples.
+ */
+
+import type { Command } from "commander";
+import type { Term } from "@trustgraph/client";
+import { createSocket, getOpts } from "./util.js";
+
+export function registerTriplesCommands(program: Command): void {
+  program
+    .command("triples")
+    .description("Query knowledge graph triples")
+    .option("-s, --subject <iri>", "Subject IRI")
+    .option("-p, --predicate <iri>", "Predicate IRI")
+    .option("-o, --object <iri>", "Object IRI or literal")
+    .option("-l, --limit <n>", "Max results", "20")
+    .option("--collection <name>", "Collection name")
+    .action(async (cmdOpts, cmd) => {
+      const opts = getOpts(cmd);
+      const socket = await createSocket(opts);
+
+      try {
+        const flow = socket.flow(opts.flow);
+        const s: Term | undefined = cmdOpts.subject
+          ? { t: "i", i: cmdOpts.subject as string }
+          : undefined;
+        const p: Term | undefined = cmdOpts.predicate
+          ? { t: "i", i: cmdOpts.predicate as string }
+          : undefined;
+        const o: Term | undefined = cmdOpts.object
+          ? { t: "i", i: cmdOpts.object as string }
+          : undefined;
+
+        const triples = await flow.triplesQuery(
+          s,
+          p,
+          o,
+          parseInt(cmdOpts.limit as string, 10),
+          cmdOpts.collection as string | undefined,
+        );
+        console.log(JSON.stringify(triples, null, 2));
+      } finally {
+        socket.close();
+      }
+    });
+}