lingrino/vaku

package vaku

import (
    "errors"
)

var (
    // ErrPathUpdate when PathUpdate fails.
    ErrPathUpdate = errors.New("path update")
)

// PathUpdate updates a path with data. New data (precedence) is merged with existing data.
func (c *Client) PathUpdate(p string, d map[string]any) error {
    if d == nil {
        return newWrapErr(p, ErrPathUpdate, ErrNilData)
    }

    read, err := c.PathRead(p)
    if err != nil {
        return newWrapErr(p, ErrPathUpdate, err)
    }
    if read == nil {
        read = make(map[string]any, len(d))
    }

    for k, v := range d {
        read[k] = v
    }

    err = c.PathWrite(p, read)
    if err != nil {
        return newWrapErr(p, ErrPathUpdate, err)
    }

    return nil
}