dynamodb-toolbox
Version:
Lightweight and type-safe query builder for DynamoDB and TypeScript.
43 lines (42 loc) • 2.06 kB
JavaScript
import { DynamoDBToolboxError } from '../../../errors/index.js';
import { isObject } from '../../../utils/validation/isObject.js';
import { schemaFormatter } from './schema.js';
import { matchItemProjection } from './utils.js';
export function* itemFormatter(schema, rawValue, { attributes, ...restOptions } = {}) {
const { format = true, transform = true } = restOptions;
if (!isObject(rawValue)) {
throw new DynamoDBToolboxError('formatter.invalidItem', {
message: 'Invalid item detected while formatting. Should be an object.',
payload: { received: rawValue, expected: 'Object' }
});
}
const formatters = {};
for (const [attributeName, attribute] of Object.entries(schema.attributes)) {
const { savedAs } = attribute.props;
const { isProjected, childrenAttributes } = matchItemProjection(attributeName, attributes);
if (!isProjected) {
continue;
}
const attributeSavedAs = transform ? savedAs !== null && savedAs !== void 0 ? savedAs : attributeName : attributeName;
formatters[attributeName] = schemaFormatter(attribute, rawValue[attributeSavedAs], {
attributes: childrenAttributes,
valuePath: [attributeSavedAs],
...restOptions
});
}
if (transform) {
const transformedValue = Object.fromEntries(Object.entries(formatters)
.map(([attrName, formatter]) => [attrName, formatter.next().value])
.filter(([, attrValue]) => attrValue !== undefined));
if (format) {
yield transformedValue;
}
else {
return transformedValue;
}
}
const formattedValue = Object.fromEntries(Object.entries(formatters)
.map(([attrName, formatter]) => [attrName, formatter.next().value])
.filter(([attrName, attrValue]) => { var _a; return ((_a = schema.attributes[attrName]) === null || _a === void 0 ? void 0 : _a.props.hidden) !== true && attrValue !== undefined; }));
return formattedValue;
}