ydb-sdk
Version:
Node.js bindings for working with YDB API over gRPC
64 lines (63 loc) • 2.62 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ResultSet = void 0;
const symbols = __importStar(require("./symbols"));
const types_1 = require("../types");
class ResultSet {
index;
rowMode;
[symbols.resultsetYdbColumnsSymbol];
columns;
rows;
constructor(index, columns, rowMode, rowsIterator // IValue when rowMode === RowType.Ydb otherwise an object where columns become properties
) {
this.index = index;
this.rowMode = rowMode;
this.columns = columns;
this.rows = rowsIterator[Symbol.asyncIterator]();
}
typedRows(type) {
if (this.rowMode !== 1 /* RowType.Ydb */)
throw new Error('Typed strings can only be retrieved in rowMode == RowType.Ydb');
const columns = this.columns;
// TODO: Check correspondence of required and received columns and their types
async function* typedRows(self) {
const nativeColumns = columns.map(col => types_1.snakeToCamelCaseConversion.ydbToJs(col.name));
const rows = self.rows;
while (true) {
const { value: ydbRow, done } = await rows.next();
if (done)
return;
yield ydbRow.items.reduce((acc, value, index) => {
acc[nativeColumns[index]] = (0, types_1.convertYdbValueToNative)(columns[index].type, value);
return acc;
}, Object.create(type.prototype));
}
}
return typedRows(this);
}
}
exports.ResultSet = ResultSet;