dynamodb-turbine/dist/parsing.js

Entity mapping and query library for DynamoDB

"use strict";
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
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    function verb(n) { return function (v) { return step([n, v]); }; }
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            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseInstance = exports.parseKeys = exports.expandPartialPayload = exports.expandPayload = exports.resolveIndex = exports.resolveKeyValues = exports.parsePagedResult = void 0;
var error_1 = require("./error");
var expressions_1 = require("./expressions");
var parsePagedResult = function (definition, entity, items, lastEvaluatedKey, next) { return __awaiter(void 0, void 0, void 0, function () {
    var output;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0: return [4 /*yield*/, Promise.all((items || []).map(function (item) { return (0, exports.parseInstance)(definition, entity, item); }))];
            case 1:
                output = _a.sent();
                if (lastEvaluatedKey) {
                    output.lastEvaluatedKey = lastEvaluatedKey;
                    if (next) {
                        output.next = next;
                    }
                }
                return [2 /*return*/, output];
        }
    });
}); };
exports.parsePagedResult = parsePagedResult;
var resolveKeyValues = function (key) {
    return Object.entries(key).reduce(function (acc, _a) {
        var k = _a[0], v = _a[1];
        if (typeof v === "object" && !Array.isArray(v)) {
            if ("equals" in v) {
                v = v.equals;
            }
            else {
                throw new error_1.TurbineError("When using `get`, the only valid key expression is `equals`.");
            }
        }
        acc[k] = (0, expressions_1.buildValue)(v);
        return acc;
    }, {});
};
exports.resolveKeyValues = resolveKeyValues;
var resolveIndex = function (definition, key) {
    var _a;
    var indexName = (key.index || "table");
    var index = definition.table.definition.indexes[indexName];
    if (!index) {
        throw new error_1.TurbineError("Index with name \"".concat(indexName, "\" is not defined in table \"").concat(definition.table.definition.name, "\""));
    }
    if (!(index.hashKey in key) ||
        key[index.hashKey] === null ||
        key[index.hashKey] === undefined) {
        throw new error_1.TurbineError("No value found for hash key \"".concat(index.hashKey, "\""));
    }
    var resolvedKey = (_a = {},
        _a[index.hashKey] = key[index.hashKey],
        _a);
    if (index.rangeKey && key[index.rangeKey] !== undefined) {
        resolvedKey[index.rangeKey] = key[index.rangeKey];
    }
    return [indexName, resolvedKey];
};
exports.resolveIndex = resolveIndex;
var expandPayload = function (definition, data) { return __awaiter(void 0, void 0, void 0, function () {
    var parsedData;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0: return [4 /*yield*/, definition.schema.parseAsync(data)];
            case 1:
                parsedData = _a.sent();
                return [2 /*return*/, __assign(__assign({}, parsedData), (0, exports.parseKeys)(definition, parsedData))];
        }
    });
}); };
exports.expandPayload = expandPayload;
var expandPartialPayload = function (definition, data) { return __awaiter(void 0, void 0, void 0, function () {
    var parsedData;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0: return [4 /*yield*/, definition.schema.partial().parseAsync(data)];
            case 1:
                parsedData = _a.sent();
                return [2 /*return*/, __assign(__assign({}, parsedData), (0, exports.parseKeys)(definition, parsedData))];
        }
    });
}); };
exports.expandPartialPayload = expandPartialPayload;
var parseKeys = function (definition, data) {
    var keys = {};
    for (var key in definition.keys) {
        var value = definition.keys[key];
        var invalid = false;
        if (typeof value === "function") {
            value = value(data);
        }
        if (Array.isArray(value)) {
            for (var _i = 0, value_1 = value; _i < value_1.length; _i++) {
                var part = value_1[_i];
                if (part === undefined)
                    invalid = true;
            }
            value = value.join("#");
        }
        if (!invalid && value !== undefined) {
            keys[key] = value;
        }
    }
    return keys;
};
exports.parseKeys = parseKeys;
var parseInstance = function (definition, entity, input) { return __awaiter(void 0, void 0, void 0, function () {
    var result;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0: return [4 /*yield*/, definition.schema.parseAsync(input)];
            case 1:
                result = _a.sent();
                result.update = function (patch) { return __awaiter(void 0, void 0, void 0, function () {
                    var index, typedInput, updated;
                    var _a, _b;
                    return __generator(this, function (_c) {
                        switch (_c.label) {
                            case 0:
                                index = definition.table.definition.indexes.table;
                                typedInput = input;
                                return [4 /*yield*/, entity.update((index.rangeKey
                                        ? (_a = {},
                                            _a[index.hashKey] = typedInput[index.hashKey],
                                            _a[index.rangeKey] = typedInput[index.rangeKey],
                                            _a) : (_b = {},
                                        _b[index.hashKey] = typedInput[index.hashKey],
                                        _b)), patch)];
                            case 1:
                                updated = _c.sent();
                                Object.assign(result, updated);
                                return [2 /*return*/, updated];
                        }
                    });
                }); };
                return [2 /*return*/, result];
        }
    });
}); };
exports.parseInstance = parseInstance;