@aws-amplify/datastore
Version:
AppSyncLocal support for aws-amplify
400 lines • 23 kB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var api_1 = __importDefault(require("@aws-amplify/api"));
var zen_observable_ts_1 = __importDefault(require("zen-observable-ts"));
var utils_1 = require("../utils");
var core_1 = require("@aws-amplify/core");
var predicates_1 = require("../../predicates");
var opResultDefaults = {
items: [],
nextToken: null,
startedAt: null,
};
var logger = new core_1.ConsoleLogger('DataStore');
var SyncProcessor = /** @class */ (function () {
function SyncProcessor(schema, syncPredicates, amplifyConfig, authModeStrategy) {
if (amplifyConfig === void 0) { amplifyConfig = {}; }
this.schema = schema;
this.syncPredicates = syncPredicates;
this.amplifyConfig = amplifyConfig;
this.authModeStrategy = authModeStrategy;
this.typeQuery = new WeakMap();
this.generateQueries();
}
SyncProcessor.prototype.generateQueries = function () {
var _this = this;
Object.values(this.schema.namespaces).forEach(function (namespace) {
Object.values(namespace.models)
.filter(function (_a) {
var syncable = _a.syncable;
return syncable;
})
.forEach(function (model) {
var _a = __read(utils_1.buildGraphQLOperation(namespace, model, 'LIST'), 1), _b = __read(_a[0]), opNameQuery = _b.slice(1);
_this.typeQuery.set(model, opNameQuery);
});
});
};
SyncProcessor.prototype.graphqlFilterFromPredicate = function (model) {
if (!this.syncPredicates) {
return null;
}
var predicatesGroup = predicates_1.ModelPredicateCreator.getPredicates(this.syncPredicates.get(model), false);
if (!predicatesGroup) {
return null;
}
return utils_1.predicateToGraphQLFilter(predicatesGroup);
};
SyncProcessor.prototype.retrievePage = function (modelDefinition, lastSync, nextToken, limit, filter) {
if (limit === void 0) { limit = null; }
return __awaiter(this, void 0, void 0, function () {
var _a, opName, query, variables, modelAuthModes, readAuthModes, authModeAttempts, authModeRetry, data, _b, _c, opResult, items, newNextToken, startedAt;
var _this = this;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
_a = __read(this.typeQuery.get(modelDefinition), 2), opName = _a[0], query = _a[1];
variables = {
limit: limit,
nextToken: nextToken,
lastSync: lastSync,
filter: filter,
};
return [4 /*yield*/, utils_1.getModelAuthModes({
authModeStrategy: this.authModeStrategy,
defaultAuthMode: this.amplifyConfig.aws_appsync_authenticationType,
modelName: modelDefinition.name,
schema: this.schema,
})];
case 1:
modelAuthModes = _d.sent();
readAuthModes = modelAuthModes.READ;
authModeAttempts = 0;
authModeRetry = function () { return __awaiter(_this, void 0, void 0, function () {
var response, error_1, authMode;
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_b.trys.push([0, 2, , 4]);
logger.debug("Attempting sync with authMode: " + readAuthModes[authModeAttempts]);
return [4 /*yield*/, this.jitteredRetry({
query: query,
variables: variables,
opName: opName,
modelDefinition: modelDefinition,
authMode: readAuthModes[authModeAttempts],
})];
case 1:
response = _b.sent();
logger.debug("Sync successful with authMode: " + readAuthModes[authModeAttempts]);
return [2 /*return*/, response];
case 2:
error_1 = _b.sent();
authModeAttempts++;
if (authModeAttempts >= readAuthModes.length) {
authMode = readAuthModes[authModeAttempts - 1];
logger.debug("Sync failed with authMode: " + authMode, error_1);
if (utils_1.getClientSideAuthError(error_1) || utils_1.getForbiddenError(error_1)) {
// return empty list of data so DataStore will continue to sync other models
logger.warn("User is unauthorized to query " + opName + " with auth mode " + authMode + ". No data could be returned.");
return [2 /*return*/, {
data: (_a = {},
_a[opName] = opResultDefaults,
_a),
}];
}
throw error_1;
}
logger.debug("Sync failed with authMode: " + readAuthModes[authModeAttempts - 1] + ". Retrying with authMode: " + readAuthModes[authModeAttempts]);
return [4 /*yield*/, authModeRetry()];
case 3: return [2 /*return*/, _b.sent()];
case 4: return [2 /*return*/];
}
});
}); };
return [4 /*yield*/, authModeRetry()];
case 2:
data = (_d.sent()).data;
_b = data, _c = opName, opResult = _b[_c];
items = opResult.items, newNextToken = opResult.nextToken, startedAt = opResult.startedAt;
return [2 /*return*/, {
nextToken: newNextToken,
startedAt: startedAt,
items: items,
}];
}
});
});
};
// Partial data private feature flag. Not a public API. This will be removed in a future release.
SyncProcessor.prototype.partialDataFeatureFlagEnabled = function () {
try {
var flag = sessionStorage.getItem('datastorePartialData');
return Boolean(flag);
}
catch (e) {
return false;
}
};
SyncProcessor.prototype.jitteredRetry = function (_a) {
var query = _a.query, variables = _a.variables, opName = _a.opName, modelDefinition = _a.modelDefinition, authMode = _a.authMode;
return __awaiter(this, void 0, void 0, function () {
var _this = this;
return __generator(this, function (_b) {
switch (_b.label) {
case 0: return [4 /*yield*/, core_1.jitteredExponentialRetry(function (query, variables) { return __awaiter(_this, void 0, void 0, function () {
var authToken, error_2, clientOrForbiddenErrorMessage, hasItems, result, unauthorized, result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, , 4]);
return [4 /*yield*/, utils_1.getTokenForCustomAuth(authMode, this.amplifyConfig)];
case 1:
authToken = _a.sent();
return [4 /*yield*/, api_1.default.graphql({
query: query,
variables: variables,
authMode: authMode,
authToken: authToken,
})];
case 2: return [2 /*return*/, _a.sent()];
case 3:
error_2 = _a.sent();
clientOrForbiddenErrorMessage = utils_1.getClientSideAuthError(error_2) || utils_1.getForbiddenError(error_2);
if (clientOrForbiddenErrorMessage) {
throw new core_1.NonRetryableError(clientOrForbiddenErrorMessage);
}
hasItems = Boolean(error_2 &&
error_2.data &&
error_2.data[opName] &&
error_2.data[opName].items);
if (this.partialDataFeatureFlagEnabled()) {
if (hasItems) {
result = error_2;
result.data[opName].items = result.data[opName].items.filter(function (item) { return item !== null; });
if (error_2.errors) {
core_1.Hub.dispatch('datastore', {
event: 'syncQueriesPartialSyncError',
data: {
errors: error_2.errors,
modelName: modelDefinition.name,
},
});
}
return [2 /*return*/, result];
}
else {
throw error_2;
}
}
unauthorized = error_2 &&
error_2.errors &&
error_2.errors.some(function (err) { return err.errorType === 'Unauthorized'; });
if (unauthorized) {
result = error_2;
if (hasItems) {
result.data[opName].items = result.data[opName].items.filter(function (item) { return item !== null; });
}
else {
result.data[opName] = __assign(__assign({}, opResultDefaults), result.data[opName]);
}
logger.warn('queryError', "User is unauthorized to query " + opName + ", some items could not be returned.");
return [2 /*return*/, result];
}
else {
throw error_2;
}
return [3 /*break*/, 4];
case 4: return [2 /*return*/];
}
});
}); }, [query, variables])];
case 1: return [2 /*return*/, _b.sent()];
}
});
});
};
SyncProcessor.prototype.start = function (typesLastSync) {
var _this = this;
var processing = true;
var _a = this.amplifyConfig, maxRecordsToSync = _a.maxRecordsToSync, syncPageSize = _a.syncPageSize;
var parentPromises = new Map();
var observable = new zen_observable_ts_1.default(function (observer) {
var sortedTypesLastSyncs = Object.values(_this.schema.namespaces).reduce(function (map, namespace) {
var e_1, _a;
try {
for (var _b = __values(Array.from(namespace.modelTopologicalOrdering.keys())), _c = _b.next(); !_c.done; _c = _b.next()) {
var modelName = _c.value;
var typeLastSync = typesLastSync.get(namespace.models[modelName]);
map.set(namespace.models[modelName], typeLastSync);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
return map;
}, new Map());
var allModelsReady = Array.from(sortedTypesLastSyncs.entries())
.filter(function (_a) {
var _b = __read(_a, 1), syncable = _b[0].syncable;
return syncable;
})
.map(function (_a) {
var _b = __read(_a, 2), modelDefinition = _b[0], _c = __read(_b[1], 2), namespace = _c[0], lastSync = _c[1];
return __awaiter(_this, void 0, void 0, function () {
var done, nextToken, startedAt, items, recordsReceived, filter, parents, promises, promise;
var _this = this;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
done = false;
nextToken = null;
startedAt = null;
items = null;
recordsReceived = 0;
filter = this.graphqlFilterFromPredicate(modelDefinition);
parents = this.schema.namespaces[namespace].modelTopologicalOrdering.get(modelDefinition.name);
promises = parents.map(function (parent) {
return parentPromises.get(namespace + "_" + parent);
});
promise = new Promise(function (res) { return __awaiter(_this, void 0, void 0, function () {
var limit;
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0: return [4 /*yield*/, Promise.all(promises)];
case 1:
_b.sent();
_b.label = 2;
case 2:
if (!processing) {
return [2 /*return*/];
}
limit = Math.min(maxRecordsToSync - recordsReceived, syncPageSize);
return [4 /*yield*/, this.retrievePage(modelDefinition, lastSync, nextToken, limit, filter)];
case 3:
(_a = _b.sent(), items = _a.items, nextToken = _a.nextToken, startedAt = _a.startedAt);
recordsReceived += items.length;
done = nextToken === null || recordsReceived >= maxRecordsToSync;
observer.next({
namespace: namespace,
modelDefinition: modelDefinition,
items: items,
done: done,
startedAt: startedAt,
isFullSync: !lastSync,
});
_b.label = 4;
case 4:
if (!done) return [3 /*break*/, 2];
_b.label = 5;
case 5:
res();
return [2 /*return*/];
}
});
}); });
parentPromises.set(namespace + "_" + modelDefinition.name, promise);
return [4 /*yield*/, promise];
case 1:
_d.sent();
return [2 /*return*/];
}
});
});
});
Promise.all(allModelsReady).then(function () {
observer.complete();
});
return function () {
processing = false;
};
});
return observable;
};
return SyncProcessor;
}());
exports.SyncProcessor = SyncProcessor;
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