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Read vector example #2568

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18 changes: 18 additions & 0 deletions examples/search-knn.js
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Original file line number Diff line number Diff line change
Expand Up @@ -88,4 +88,22 @@ console.log(JSON.stringify(results, null, 2));
// }
// ]
// }

// The inverse of tobytes, for parsing results out of hget.
const frombytes = (buffer) => {
const array = new Float32Array(buffer.length / 4);
for (let i = 0; i < array.length; i++) {
array[i] = buffer.readFloatLE(i * 4);
}
return array;
};

// An example of how to get a particular vector back out of Redis.
const vector = await client.hGet(
commandOptions({ returnBuffers: true }),
'noderedis:knn:a',
'v'
);
console.log(frombytes(vector));

await client.quit();