Number functions

numSet

The numSet function stores a numeric value (integer or floating-point) in the key-value database. This command is designed to handle numerical data efficiently.

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Simple use

      const res = await client.numSet("user:1001:balance", 123);
    console.log(res);

Full Example

  async function main() {
  const client = fleare.createClient("127.0.0.1", 9219);
  ...
  
  try {
    await client.connect();

    const res = await client.numSet("user:1001:balance", 12.55);
    console.log(res);

  } catch (err) {
    console.error(err);
  } finally {
    await client.close();
  }
}

Output

  ""

numGet

The numGet function retrieves a numerical value (integer or float) from the database associated with the given key. It only supports keys whose values are of type Number . If the key does not exist or the value is not a number, an appropriate error is returned.

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Simple use

  const res = await client.numGet("user:1001:balance");
console.log(res);

Output

  12.55

numIncr

The numIncr function increments a numeric value associated with a key. If the key does not exist, it sets the key to the given value (or to 1 by default). This command supports both integer and floating-point numbers.

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Simple use

  await client.numIncr("user:1001:balance", 10.05);
// get 
const res = await client.numGet("user:1001:balance");
console.log(res);

Output

  22.6

numDecr

The numDecr function decrements the numeric value stored at the specified key by a given amount. If the key does not exist, it initializes the key with the decremented value (i.e., 0 - value ). If no amount is provided, it decrements by 1 by default.

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Simple use

  await client.numDecr("user:1001:balance", 4);
// get 
const res = await client.numGet("user:1001:balance");
console.log(res);

Output

  18.6