slonik/dist/connectionMethods/maybeOneFirst.js

A Node.js PostgreSQL client with strict types, detailed logging and assertions.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.maybeOneFirst = void 0;
const maybeOne_1 = require("./maybeOne");
const errors_1 = require("@slonik/errors");
const utilities_1 = require("@slonik/utilities");
/**
 * Makes a query and expects exactly one result.
 * Returns value of the first column.
 * @throws DataIntegrityError If query returns multiple rows.
 */
const maybeOneFirst = async (log, connection, clientConfiguration, query, inheritedQueryId) => {
    const queryId = inheritedQueryId ?? (0, utilities_1.generateUid)();
    const row = await (0, maybeOne_1.maybeOne)(log, connection, clientConfiguration, query, queryId);
    if (!row) {
        return null;
    }
    const keys = Object.keys(row);
    if (keys.length !== 1) {
        log.error({
            queryId,
        }, 'DataIntegrityError');
        throw new errors_1.DataIntegrityError(query);
    }
    return row[keys[0]];
};
exports.maybeOneFirst = maybeOneFirst;
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