KeyValueStore Serialization

KeyValueStore.serialization.ts

const deserializeBoolean = (value: string) => value === 'true';
const deserializeString = (value: string) => value;
const deserializeNumber = (value: string) => parseInt(value);
const serializeBoolean = (value: boolean) => value ? 'true' : 'false';
const serializeString = (value: string) => value;
const serializeNumber = (value: number) => number.toFixed();

/**
 * Each key-value storage key needs a function to deserialize its string value
 * from the database into its own type. Each type is specified in KeyValueStorage.
 */
const keyValueStorageDeserializers : { [key in KeyValueStorageKey]: (value: string) => KeyValueStorage[key] } = {
  'setting1': deserializeBoolean,
  'setting2': deserializeString,
  'setting3': deserializeNumber
};

/**
 * Each key-value storage key needs a function to serialize its value
 * to a string that can be saved in the database.
 */
const keyValueStorageSerializers : { [key in KeyValueStorageKey]: (value: KeyValueStorage[key]) => string } = {
  'setting1': serializeBoolean,
  'setting2': serializeString,
  'setting3': serializeNumber
};