@neo4j/graphql
Version:
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations
52 lines • 2.02 kB
JavaScript
;
/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.mapLabelsWithContext = mapLabelsWithContext;
const dot_prop_1 = __importDefault(require("dot-prop"));
/**
* Given a list of strings, representing labels, and a context, replace any labels that start with $ with the value from the context
**/
function mapLabelsWithContext(labels, context) {
return labels.map((label) => {
if (label.startsWith("$")) {
// Trim $context. OR $ off the beginning of the string
const path = label.substring(label.startsWith("$context") ? 9 : 1);
const labelValue = searchLabel(context, path);
if (!labelValue) {
throw new Error(`Label value not found in context.`);
}
return labelValue;
}
return label;
});
}
function searchLabel(context, path) {
// Search for the key at the root of the context
let labelValue = dot_prop_1.default.get(context, path);
if (!labelValue) {
// Search for the key in cypherParams
labelValue = dot_prop_1.default.get(context.cypherParams, path);
}
return labelValue;
}
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