duenamodb/lib/query.js

Simple, strongly-typed helpers around the AWS SDK DynamoDB client.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.queryItems = exports.createQueryOptions = exports.createQueryItems = void 0;
const client_dynamodb_1 = require("@aws-sdk/client-dynamodb");
const util_dynamodb_1 = require("@aws-sdk/util-dynamodb");
const client_1 = require("./client");
const expression_1 = require("./expression");
const object_1 = require("./object");
const createQueryItems = (options) => {
    const { indexName, skName, pkName, tablename } = options;
    return ({ pk, sk, dynamodbOptions = {}, filter }) => {
        const keyOptions = {
            [pkName]: pk,
            ...(0, object_1.maybeMerge)(skName, sk),
        };
        const queryOptions = (0, exports.createQueryOptions)(keyOptions, indexName, filter);
        return (0, exports.queryItems)(tablename, {
            ...dynamodbOptions,
            ...queryOptions,
        });
    };
};
exports.createQueryItems = createQueryItems;
const createQueryOptions = (keyOptions, index, filter) => {
    const { attributeNames: keyNames, attributeValues: keyValues, expression: keyExpression, } = (0, expression_1.createConditionExpression)(keyOptions);
    const { attributeNames: filterNames, attributeValues: filterValues, expression: filterExpression, } = (0, expression_1.createConditionExpression)(filter ?? {});
    return {
        IndexName: index,
        ExpressionAttributeValues: (0, util_dynamodb_1.marshall)({ ...keyValues, ...filterValues }),
        ExpressionAttributeNames: { ...keyNames, ...filterNames },
        KeyConditionExpression: keyExpression,
        ...(0, object_1.maybeMerge)("FilterExpression", filterExpression),
    };
};
exports.createQueryOptions = createQueryOptions;
const queryItems = async (tablename, options) => {
    const command = new client_dynamodb_1.QueryCommand({
        ...options,
        TableName: tablename,
    });
    const res = await client_1.DDBClient.instance.send(command);
    if (res.$metadata.httpStatusCode !== 200) {
        throw res;
    }
    if (!res.Items) {
        return [];
    }
    const paginatedResults = res.LastEvaluatedKey
        ? await (0, exports.queryItems)(tablename, {
            ...options,
            ExclusiveStartKey: res.LastEvaluatedKey,
        })
        : [];
    return [
        ...paginatedResults,
        ...res.Items.map((item) => (0, util_dynamodb_1.unmarshall)(item)),
    ];
};
exports.queryItems = queryItems;
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