Method flashOnly

src/session.ts:527–537

* Flashes form input data (only some keys) to the flash messages store * * @param keys - Array of keys to include in flashing * * @example * session.flashOnly(['name', 'email'])

(keys: string[])

   * session.flashOnly(['name', 'email'])
   */
  flashOnly(keys: string[]): void {
    this.#getFlashStore('write').set(
      'input',
      lodash.pickBy(this.#ctx.request.original(), (value, key) => {
        if (keys.includes(key)) {
          return this.shouldFlashValue(value)
        }
        return false
      })
    )
  }

  /**
   * Reflashes messages from the last request in the current response