dynamodb-dashboard
Version:
GUI Dashboard for local or remote DynamoDB
336 lines (333 loc) • 24 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _lodash = require("lodash");
var _aws = _interopRequireDefault(require("../config/aws"));
var _dynamodb = require("../utils/dynamodb");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { "default": e }; }
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var ItemServiceProvider = exports["default"] = /*#__PURE__*/function () {
/**
* @param {AWS} _AWS_
*/
function ItemServiceProvider() {
var _AWS_ = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : _aws["default"];
_classCallCheck(this, ItemServiceProvider);
this.AWS = _AWS_;
}
// https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Scan.html
// https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Query.html
/**
*
* @param {"scan"|"query"} operation
* @param {string} tableName
* @param {object} conditions
*
* @returns {Promise<object>}
*/
return _createClass(ItemServiceProvider, [{
key: "fetch",
value: function () {
var _fetch = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee(operation, tableName, conditions) {
var params, items, scannedCount, intermediateExclusiveStartKey, response, slice, item, indices;
return _regeneratorRuntime().wrap(function _callee$(_context) {
while (1) switch (_context.prev = _context.next) {
case 0:
params = _objectSpread({
TableName: tableName
}, conditions);
items = [];
scannedCount = 0; // Slice
intermediateExclusiveStartKey = params.ExclusiveStartKey;
case 4:
_context.next = 6;
return this.AWS.document[operation](params);
case 6:
response = _context.sent;
// AWS.document.scan(...), AWS.document.query(...)
scannedCount += response.ScannedCount;
items.push.apply(items, _toConsumableArray(response.Items));
params.ExclusiveStartKey = response.LastEvaluatedKey;
// Slice
intermediateExclusiveStartKey || (intermediateExclusiveStartKey = response.LastEvaluatedKey);
if (!(items.length >= params.Limit)) {
_context.next = 13;
break;
}
return _context.abrupt("break", 14);
case 13:
if (params.ExclusiveStartKey) {
_context.next = 4;
break;
}
case 14:
/* Slice
* eg:
* Limit = 10
* intermediateExclusiveStartKey = g
* items = [...[a,b,c,d,e,f,g], ...[h,i,j,k,l]]
* slice = [a,b,c,d,e,f,g,h,i,j]
* ExclusiveStartKey = pick(j, Object.keys(g))
*/
slice = items.slice(0, params.Limit);
if (items.length > slice.length) {
item = slice.at(-1);
indices = Object.keys(intermediateExclusiveStartKey);
params.ExclusiveStartKey = (0, _lodash.pick)(item, indices);
}
return _context.abrupt("return", {
Items: slice.map(function (item) {
return (0, _dynamodb.serialize)(item);
}),
Count: slice.length,
ScannedCount: scannedCount,
LastEvaluatedKey: params.ExclusiveStartKey
});
case 17:
case "end":
return _context.stop();
}
}, _callee, this);
}));
function fetch(_x, _x2, _x3) {
return _fetch.apply(this, arguments);
}
return fetch;
}()
/**
* @param {string} tableName
* @param {object} keys
*
* @returns {Promise<object>}
*/
}, {
key: "get",
value: (function () {
var _get = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee2(tableName, keys) {
var params, response;
return _regeneratorRuntime().wrap(function _callee2$(_context2) {
while (1) switch (_context2.prev = _context2.next) {
case 0:
params = {
TableName: tableName,
Key: keys
};
_context2.next = 3;
return this.AWS.document.get(params);
case 3:
response = _context2.sent;
response.Item = (0, _dynamodb.serialize)(response.Item);
return _context2.abrupt("return", response);
case 6:
case "end":
return _context2.stop();
}
}, _callee2, this);
}));
function get(_x4, _x5) {
return _get.apply(this, arguments);
}
return get;
}()
/**
* A single call to BatchWriteItem can transmit up to 16MB of data over the network, consisting of up to 25 item put or delete operations.
*
* @param {string} tableName
* @param {Array<object>} items
*
* @returns {Promise<Array<object>>}
*/
)
}, {
key: "destroy",
value: (function () {
var _destroy = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee3(tableName, items) {
var chunks, requests, response;
return _regeneratorRuntime().wrap(function _callee3$(_context3) {
while (1) switch (_context3.prev = _context3.next) {
case 0:
chunks = (0, _lodash.chunk)(items, 25);
requests = chunks.map(function (chunkedItem) {
return {
RequestItems: _defineProperty({}, tableName, chunkedItem)
};
});
_context3.next = 4;
return Promise.all(requests.map(this.AWS.document.batchWrite.bind(this.AWS.document)));
case 4:
response = _context3.sent;
return _context3.abrupt("return", response);
case 6:
case "end":
return _context3.stop();
}
}, _callee3, this);
}));
function destroy(_x6, _x7) {
return _destroy.apply(this, arguments);
}
return destroy;
}()
/**
* @param {string} tableName
* @param {object} schema
* @param {object} body
*
* @returns {Promise<object>}
*/
)
}, {
key: "create",
value: (function () {
var _create = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee4(tableName, schema, body) {
var params, response;
return _regeneratorRuntime().wrap(function _callee4$(_context4) {
while (1) switch (_context4.prev = _context4.next) {
case 0:
params = {
Item: body,
TableName: tableName,
ConditionExpression: schema.map(function (key) {
return "attribute_not_exists(".concat(key, ")");
}).join(" AND ")
};
_context4.next = 3;
return this.AWS.document.put(params);
case 3:
response = _context4.sent;
return _context4.abrupt("return", response);
case 5:
case "end":
return _context4.stop();
}
}, _callee4, this);
}));
function create(_x8, _x9, _x10) {
return _create.apply(this, arguments);
}
return create;
}()
/**
* @param {string} tableName
* @param {object} schema
* @param {{ ref: object, body: object }} param
*
* @returns {Promise<object>}
*/
)
}, {
key: "update",
value: (function () {
var _update = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee5(tableName, schema, _ref) {
var ref, body, _yield$this$AWS$docum, Item, params, response;
return _regeneratorRuntime().wrap(function _callee5$(_context5) {
while (1) switch (_context5.prev = _context5.next) {
case 0:
ref = _ref.ref, body = _ref.body;
_context5.next = 3;
return this.AWS.document.get({
Key: ref,
TableName: tableName
});
case 3:
_yield$this$AWS$docum = _context5.sent;
Item = _yield$this$AWS$docum.Item;
params = {
Key: ref,
TableName: tableName,
Item: (0, _dynamodb.deserialize)(Item, body),
ConditionExpression: schema.map(function (key) {
return "attribute_exists(".concat(key, ")");
}).join(" AND ")
};
_context5.next = 8;
return this.AWS.document.put(params);
case 8:
response = _context5.sent;
return _context5.abrupt("return", response);
case 10:
case "end":
return _context5.stop();
}
}, _callee5, this);
}));
function update(_x11, _x12, _x13) {
return _update.apply(this, arguments);
}
return update;
}()
/**
* @param {string} tableName
* @param {object} schema
* @param {{ ref: object, body: object }} param
*
* @returns {Promise<object>}
*/
)
}, {
key: "transactUpdate",
value: (function () {
var _transactUpdate = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee6(tableName, schema, _ref2) {
var ref, body, _yield$this$AWS$docum2, Item, response;
return _regeneratorRuntime().wrap(function _callee6$(_context6) {
while (1) switch (_context6.prev = _context6.next) {
case 0:
ref = _ref2.ref, body = _ref2.body;
_context6.next = 3;
return this.AWS.document.get({
TableName: tableName,
Key: ref
});
case 3:
_yield$this$AWS$docum2 = _context6.sent;
Item = _yield$this$AWS$docum2.Item;
response = this.AWS.document.transactWrite({
TransactItems: [{
Delete: {
Key: ref,
TableName: tableName
}
}, {
Put: {
Item: (0, _dynamodb.deserialize)(Item, body),
TableName: tableName,
Key: (0, _lodash.pick)(body, schema),
ConditionExpression: schema.map(function (key) {
return "attribute_not_exists(".concat(key, ")");
}).join(" AND ")
}
}]
});
return _context6.abrupt("return", response);
case 7:
case "end":
return _context6.stop();
}
}, _callee6, this);
}));
function transactUpdate(_x14, _x15, _x16) {
return _transactUpdate.apply(this, arguments);
}
return transactUpdate;
}())
}]);
}();