odatafy-parser/dist/src/parser.js

generate odatafy ast from odata query parameters

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.searchParser = exports.selectParser = exports.computeParser = exports.expandParser = exports.topParser = exports.skipParser = exports.orderbyParser = exports.filterParser = exports.parseODataUrl = void 0;
const url_1 = __importDefault(require("url"));
const computeParser_1 = __importDefault(require("./parsing/computeParser"));
exports.computeParser = computeParser_1.default;
const filterParser_1 = __importDefault(require("./parsing/filterParser"));
exports.filterParser = filterParser_1.default;
const orderbyParser_1 = __importDefault(require("./parsing/orderbyParser"));
exports.orderbyParser = orderbyParser_1.default;
const skipParser_1 = __importDefault(require("./parsing/skipParser"));
exports.skipParser = skipParser_1.default;
const topParser_1 = __importDefault(require("./parsing/topParser"));
exports.topParser = topParser_1.default;
const expandParser_1 = __importDefault(require("./parsing/expandParser"));
exports.expandParser = expandParser_1.default;
const selectParser_1 = __importDefault(require("./parsing/selectParser"));
exports.selectParser = selectParser_1.default;
const searchParser_1 = __importDefault(require("./parsing/searchParser"));
exports.searchParser = searchParser_1.default;
const utils_1 = require("./utils");
const countParser_1 = __importDefault(require("./parsing/countParser"));
/**
 * parse oData parameter expressions
 * @param parameters oData url parameters
 * @returns parsed oData parameters
 */
function parseOData(parameters) {
    const result = {};
    if (parameters.filter) {
        result.filter = filterParser_1.default.parse(parameters.filter);
    }
    if (parameters.orderby) {
        result.orderby = orderbyParser_1.default.parse(parameters.orderby);
    }
    if (parameters.skip) {
        result.skip = skipParser_1.default.parse(parameters.skip);
    }
    if (parameters.top) {
        result.top = topParser_1.default.parse(parameters.top);
    }
    if (parameters.expand) {
        result.expand = expandParser_1.default.parse(parameters.expand);
    }
    if (parameters.compute) {
        result.compute = computeParser_1.default.parse(parameters.compute);
    }
    if (parameters.select) {
        result.select = selectParser_1.default.parse(parameters.select);
    }
    if (parameters.search) {
        result.search = searchParser_1.default.parse(parameters.search);
    }
    if (parameters.count) {
        result.count = countParser_1.default.parse(parameters.count);
    }
    return result;
}
/**
 * parse oData parameter expressions from url
 * @param oDataUrl oData url as string, from req.url
 * @example //returns {top: 4}
 * parseODataUrl("//https://services.odata.org/v2/northwind/northwind.svc/Customers?$top=4")
 * @returns parsed oData parameters
 */
function parseODataUrl(oDataUrl) {
    let query;
    try {
        query = url_1.default.parse(oDataUrl, true).query;
    }
    catch (e) {
        throw (0, utils_1.getOdatafyParserError)('malformed URL');
    }
    const validParams = [
        'filter',
        'orderby',
        'skip',
        'top',
        'expand',
        'compute',
        'select',
        'search',
        'count'
    ];
    const params = Object.keys(query);
    const parseParameters = {};
    validParams.forEach((param) => {
        //check if url
        if (params.includes(param) && params.includes('$' + param)) {
            throw (0, utils_1.getOdatafyParserError)(`Malformed oData url, cannot contain param: ${param} and param: $${param}`);
        }
        if (params.includes(param) || params.includes('$' + param)) {
            parseParameters[param] = query[params.includes(param) ? param : '$' + param];
        }
    });
    return parseOData(parseParameters);
}
exports.parseODataUrl = parseODataUrl;