keyv.transform
0.000005

Transforms the value of a key.

Arguments

procrequired

The proc used to transform the value.

bucketrequired

The bucket the key is stored under.

key

The key to transform the value for.

type

The type of value from the resulting transform.

set

The value to set if the key does not exist.

Return Value

true if the key was transformed, otherwise false.

keyv.transform transforms the value of a key, optionally setting an initial value prior to transforming if the key does not exist. If the key is updated or deleted during the transform, the transform will be aborted.

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Transforming the value of a key

Setup

authorization=PROCAUTH

require "proc"

client = Proc.connect("PROCAUTH")

const Proc = require("@proc.dev/client");
const client = Proc.connect("PROCAUTH");

client.keyv.set.call(
  bucket: "w00e4ea4", value: "foo"
)

client.keyv.transform.call(bucket: "w00e4ea4") {
  client.type.string.reverse
}

client.keyv.set.call(
  undefined, w00e4ea4
);

client.keyv.transform.call(undefined, w00e4ea4, () => {
  return client.type.string.reverse;
});

curl "https://proc.run/keyv/set?bucket=w00e4ea4" --silent \
--header "authorization: bearer $authorization" \
--header "content-type: text/plain" \
--data "foo"

curl "https://proc.run/keyv/transform?bucket=w00e4ea4" --silent \
--header "authorization: bearer $authorization" \
--header "content-type: application/vnd.proc+json" \
--header "accept: text/plain" \
--data '[["$$", "bucket", ["%%", "w00e4ea4", ["()", "type.string.reverse"]]]]'

true

There's a lot more to the key-value store, including expiries and value types—learn more in the docs.

Stuck? Want to chat about an idea? Join the community on Discord.

keyv.transform0.000005

keyv.transform
0.000005