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* fix #2189 - add graph --compact support * clean code * fix graph string param escaping * fix "is not assignable to parameter of type 'GraphClientType'" * fix README
This commit is contained in:
@@ -2,34 +2,31 @@
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Example usage:
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Example usage:
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```javascript
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```javascript
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import { createClient } from 'redis';
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import { createClient, Graph } from 'redis';
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const client = createClient();
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const client = createClient();
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client.on('error', (err) => console.log('Redis Client Error', err));
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client.on('error', (err) => console.log('Redis Client Error', err));
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await client.connect();
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await client.connect();
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await client.graph.query(
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const graph = new Graph(client, 'graph');
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'graph',
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"CREATE (:Rider { name: 'Buzz Aldrin' })-[:rides]->(:Team { name: 'Apollo' })"
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await graph.query(
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'CREATE (:Rider { name: $riderName })-[:rides]->(:Team { name: $teamName })',
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{
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params: {
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riderName: 'Buzz Aldrin',
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teamName: 'Apollo'
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}
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}
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);
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);
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const result = await client.graph.query(
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const result = await graph.roQuery(
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'graph',
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'MATCH (r:Rider)-[:rides]->(t:Team { name: $name }) RETURN r.name AS name',
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`MATCH (r:Rider)-[:rides]->(t:Team) WHERE t.name = 'Apollo' RETURN r.name, t.name`
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{
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name: 'Apollo'
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}
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);
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);
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console.log(result);
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console.log(result.data); // [{ name: 'Buzz Aldrin' }]
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```
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Output from console log:
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```json
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{
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headers: [ 'r.name', 't.name' ],
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data: [ [ 'Buzz Aldrin', 'Apollo' ] ],
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metadata: [
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'Cached execution: 0',
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'Query internal execution time: 0.431700 milliseconds'
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]
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}
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```
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```
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@@ -5,18 +5,13 @@ import { transformArguments } from './QUERY';
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describe('QUERY', () => {
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describe('QUERY', () => {
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it('transformArguments', () => {
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it('transformArguments', () => {
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assert.deepEqual(
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assert.deepEqual(
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transformArguments('key', '*', 100),
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transformArguments('key', 'query'),
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['GRAPH.QUERY', 'key', '*', '100']
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['GRAPH.QUERY', 'key', 'query']
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);
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);
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});
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});
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testUtils.testWithClient('client.graph.query', async client => {
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testUtils.testWithClient('client.graph.query', async client => {
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await client.graph.query('key',
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const { data } = await client.graph.query('key', 'RETURN 0');
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"CREATE (r:human {name:'roi', age:34}), (a:human {name:'amit', age:32}), (r)-[:knows]->(a)"
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assert.deepEqual(data, [[0]]);
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);
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const reply = await client.graph.query('key',
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"MATCH (r:human)-[:knows]->(a:human) RETURN r.age, r.name"
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);
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assert.equal(reply.data.length, 1);
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}, GLOBAL.SERVERS.OPEN);
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}, GLOBAL.SERVERS.OPEN);
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});
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});
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@@ -1,24 +1,26 @@
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import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands/index';
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import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands/index';
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import { pushQueryArguments } from '.';
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import { pushQueryArguments, QueryOptionsBackwardCompatible } from '.';
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export const FIRST_KEY_INDEX = 1;
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export const FIRST_KEY_INDEX = 1;
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export function transformArguments(
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export function transformArguments(
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graph: RedisCommandArgument,
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graph: RedisCommandArgument,
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query: RedisCommandArgument,
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query: RedisCommandArgument,
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timeout?: number
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options?: QueryOptionsBackwardCompatible,
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compact?: boolean
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): RedisCommandArguments {
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): RedisCommandArguments {
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return pushQueryArguments(
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return pushQueryArguments(
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['GRAPH.QUERY'],
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['GRAPH.QUERY'],
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graph,
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graph,
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query,
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query,
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timeout
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options,
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compact
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);
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);
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}
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}
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type Headers = Array<string>;
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type Headers = Array<string>;
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type Data = Array<Array<string | number | null>>;
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type Data = Array<string | number | null | Data>;
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type Metadata = Array<string>;
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type Metadata = Array<string>;
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@@ -26,16 +28,26 @@ type QueryRawReply = [
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headers: Headers,
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headers: Headers,
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data: Data,
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data: Data,
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metadata: Metadata
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metadata: Metadata
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] | [
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metadata: Metadata
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];
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];
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interface QueryReply {
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export type QueryReply = {
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headers: Headers,
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headers: undefined;
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data: Data,
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data: undefined;
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metadata: Metadata
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metadata: Metadata;
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} | {
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headers: Headers;
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data: Data;
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metadata: Metadata;
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};
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};
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export function transformReply(reply: QueryRawReply): QueryReply {
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export function transformReply(reply: QueryRawReply): QueryReply {
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return {
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return reply.length === 1 ? {
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headers: undefined,
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data: undefined,
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metadata: reply[0]
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} : {
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headers: reply[0],
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headers: reply[0],
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data: reply[1],
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data: reply[1],
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metadata: reply[2]
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metadata: reply[2]
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@@ -1,22 +0,0 @@
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import { strict as assert } from 'assert';
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import testUtils, { GLOBAL } from '../test-utils';
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import { transformArguments } from './QUERY_RO';
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describe('QUERY_RO', () => {
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it('transformArguments', () => {
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assert.deepEqual(
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transformArguments('key', '*', 100),
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['GRAPH.RO_QUERY', 'key', '*', '100']
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);
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});
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testUtils.testWithClient('client.graph.queryRo', async client => {
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await client.graph.query('key',
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"CREATE (r:human {name:'roi', age:34}), (a:human {name:'amit', age:32}), (r)-[:knows]->(a)"
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);
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const reply = await client.graph.queryRo('key',
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"MATCH (r:human)-[:knows]->(a:human) RETURN r.age, r.name"
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);
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assert.equal(reply.data.length, 1);
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}, GLOBAL.SERVERS.OPEN);
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});
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17
packages/graph/lib/commands/RO_QUERY.spec.ts
Normal file
17
packages/graph/lib/commands/RO_QUERY.spec.ts
Normal file
@@ -0,0 +1,17 @@
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import { strict as assert } from 'assert';
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import testUtils, { GLOBAL } from '../test-utils';
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import { transformArguments } from './RO_QUERY';
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describe('RO_QUERY', () => {
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it('transformArguments', () => {
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assert.deepEqual(
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transformArguments('key', 'query'),
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['GRAPH.RO_QUERY', 'key', 'query']
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);
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});
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testUtils.testWithClient('client.graph.roQuery', async client => {
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const { data } = await client.graph.roQuery('key', 'RETURN 0');
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assert.deepEqual(data, [[0]]);
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}, GLOBAL.SERVERS.OPEN);
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});
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@@ -1,5 +1,5 @@
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import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands';
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import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands';
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import { pushQueryArguments } from '.';
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import { pushQueryArguments, QueryOptionsBackwardCompatible } from '.';
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export { FIRST_KEY_INDEX } from './QUERY';
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export { FIRST_KEY_INDEX } from './QUERY';
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@@ -8,13 +8,15 @@ export const IS_READ_ONLY = true;
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export function transformArguments(
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export function transformArguments(
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graph: RedisCommandArgument,
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graph: RedisCommandArgument,
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query: RedisCommandArgument,
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query: RedisCommandArgument,
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timeout?: number
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options?: QueryOptionsBackwardCompatible,
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compact?: boolean
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): RedisCommandArguments {
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): RedisCommandArguments {
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return pushQueryArguments(
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return pushQueryArguments(
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['GRAPH.RO_QUERY'],
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['GRAPH.RO_QUERY'],
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graph,
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graph,
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query,
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query,
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timeout
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options,
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compact
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);
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);
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}
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}
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62
packages/graph/lib/commands/index.spec.ts
Normal file
62
packages/graph/lib/commands/index.spec.ts
Normal file
@@ -0,0 +1,62 @@
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import { strict as assert } from 'assert';
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import { pushQueryArguments } from '.';
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describe('pushQueryArguments', () => {
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it('simple', () => {
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assert.deepEqual(
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pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query'),
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['GRAPH.QUERY', 'graph', 'query']
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);
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});
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describe('params', () => {
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it('all types', () => {
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assert.deepEqual(
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pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', {
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params: {
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null: null,
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string: '"\\',
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number: 0,
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boolean: false,
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array: [0],
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object: {a: 0}
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}
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}),
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['GRAPH.QUERY', 'graph', 'CYPHER null=null string="\\"\\\\" number=0 boolean=false array=[0] object={a:0} query']
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);
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});
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it('TypeError', () => {
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assert.throws(() => {
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pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', {
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params: {
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a: undefined as any
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}
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})
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}, TypeError);
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});
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});
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|
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it('TIMEOUT backward compatible', () => {
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assert.deepEqual(
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pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', 1),
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['GRAPH.QUERY', 'graph', 'query', 'TIMEOUT', '1']
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);
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});
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it('TIMEOUT', () => {
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|
assert.deepEqual(
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pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', {
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|
TIMEOUT: 1
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|
}),
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['GRAPH.QUERY', 'graph', 'query', 'TIMEOUT', '1']
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|
);
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});
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|
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|
it('compact', () => {
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|
assert.deepEqual(
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|
pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', undefined, true),
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|
['GRAPH.QUERY', 'graph', 'query', '--compact']
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|
);
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|
});
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|
});
|
@@ -4,8 +4,8 @@ import * as DELETE from './DELETE';
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import * as EXPLAIN from './EXPLAIN';
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import * as EXPLAIN from './EXPLAIN';
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import * as LIST from './LIST';
|
import * as LIST from './LIST';
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import * as PROFILE from './PROFILE';
|
import * as PROFILE from './PROFILE';
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import * as QUERY_RO from './QUERY_RO';
|
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import * as QUERY from './QUERY';
|
import * as QUERY from './QUERY';
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|
import * as RO_QUERY from './RO_QUERY';
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import * as SLOWLOG from './SLOWLOG';
|
import * as SLOWLOG from './SLOWLOG';
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import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands';
|
import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands';
|
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|
|
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@@ -22,28 +22,93 @@ export default {
|
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list: LIST,
|
list: LIST,
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PROFILE,
|
PROFILE,
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profile: PROFILE,
|
profile: PROFILE,
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QUERY_RO,
|
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queryRo: QUERY_RO,
|
|
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QUERY,
|
QUERY,
|
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query: QUERY,
|
query: QUERY,
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|
RO_QUERY,
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|
roQuery: RO_QUERY,
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SLOWLOG,
|
SLOWLOG,
|
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slowLog: SLOWLOG
|
slowLog: SLOWLOG
|
||||||
};
|
};
|
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|
|
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|
type QueryParam = null | string | number | boolean | QueryParams | Array<QueryParam>;
|
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|
|
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|
type QueryParams = {
|
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|
[key: string]: QueryParam;
|
||||||
|
};
|
||||||
|
|
||||||
|
export interface QueryOptions {
|
||||||
|
params?: QueryParams;
|
||||||
|
TIMEOUT?: number;
|
||||||
|
}
|
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|
|
||||||
|
export type QueryOptionsBackwardCompatible = QueryOptions | number;
|
||||||
|
|
||||||
export function pushQueryArguments(
|
export function pushQueryArguments(
|
||||||
args: RedisCommandArguments,
|
args: RedisCommandArguments,
|
||||||
graph: RedisCommandArgument,
|
graph: RedisCommandArgument,
|
||||||
query: RedisCommandArgument,
|
query: RedisCommandArgument,
|
||||||
timeout?: number
|
options?: QueryOptionsBackwardCompatible,
|
||||||
|
compact?: boolean
|
||||||
): RedisCommandArguments {
|
): RedisCommandArguments {
|
||||||
args.push(
|
args.push(graph);
|
||||||
graph,
|
|
||||||
query
|
|
||||||
);
|
|
||||||
|
|
||||||
if (timeout !== undefined) {
|
if (typeof options === 'number') {
|
||||||
args.push(timeout.toString());
|
args.push(query);
|
||||||
|
pushTimeout(args, options);
|
||||||
|
} else {
|
||||||
|
args.push(
|
||||||
|
options?.params ?
|
||||||
|
`CYPHER ${queryParamsToString(options.params)} ${query}` :
|
||||||
|
query
|
||||||
|
);
|
||||||
|
|
||||||
|
if (options?.TIMEOUT !== undefined) {
|
||||||
|
pushTimeout(args, options.TIMEOUT);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (compact) {
|
||||||
|
args.push('--compact');
|
||||||
}
|
}
|
||||||
|
|
||||||
return args;
|
return args;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
function pushTimeout(args: RedisCommandArguments, timeout: number): void {
|
||||||
|
args.push('TIMEOUT', timeout.toString());
|
||||||
|
}
|
||||||
|
|
||||||
|
function queryParamsToString(params: QueryParams): string {
|
||||||
|
const parts = [];
|
||||||
|
for (const [key, value] of Object.entries(params)) {
|
||||||
|
parts.push(`${key}=${queryParamToString(value)}`);
|
||||||
|
}
|
||||||
|
return parts.join(' ');
|
||||||
|
}
|
||||||
|
|
||||||
|
function queryParamToString(param: QueryParam): string {
|
||||||
|
if (param === null) {
|
||||||
|
return 'null';
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (typeof param) {
|
||||||
|
case 'string':
|
||||||
|
return `"${param.replace(/["\\]/g, '\\$&')}"`;
|
||||||
|
|
||||||
|
case 'number':
|
||||||
|
case 'boolean':
|
||||||
|
return param.toString();
|
||||||
|
}
|
||||||
|
|
||||||
|
if (Array.isArray(param)) {
|
||||||
|
return `[${param.map(queryParamToString).join(',')}]`;
|
||||||
|
} else if (typeof param === 'object') {
|
||||||
|
const body = [];
|
||||||
|
for (const [key, value] of Object.entries(param)) {
|
||||||
|
body.push(`${key}:${queryParamToString(value)}`);
|
||||||
|
}
|
||||||
|
return `{${body.join(',')}}`;
|
||||||
|
} else {
|
||||||
|
throw new TypeError(`Unexpected param type ${typeof param} ${param}`)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
148
packages/graph/lib/graph.spec.ts
Normal file
148
packages/graph/lib/graph.spec.ts
Normal file
@@ -0,0 +1,148 @@
|
|||||||
|
import { strict as assert } from 'assert';
|
||||||
|
import testUtils, { GLOBAL } from './test-utils';
|
||||||
|
import Graph from './graph';
|
||||||
|
|
||||||
|
describe('Graph', () => {
|
||||||
|
testUtils.testWithClient('null', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
{ data } = await graph.roQuery('RETURN null AS key');
|
||||||
|
|
||||||
|
assert.deepEqual(
|
||||||
|
data,
|
||||||
|
[{ key: null }]
|
||||||
|
);
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('string', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
{ data } = await graph.roQuery('RETURN "string" AS key');
|
||||||
|
|
||||||
|
assert.deepEqual(
|
||||||
|
data,
|
||||||
|
[{ key: 'string' }]
|
||||||
|
);
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('integer', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
{ data } = await graph.roQuery('RETURN 0 AS key');
|
||||||
|
|
||||||
|
assert.deepEqual(
|
||||||
|
data,
|
||||||
|
[{ key: 0 }]
|
||||||
|
);
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('boolean', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
{ data } = await graph.roQuery('RETURN false AS key');
|
||||||
|
|
||||||
|
assert.deepEqual(
|
||||||
|
data,
|
||||||
|
[{ key: false }]
|
||||||
|
);
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('double', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
{ data } = await graph.roQuery('RETURN 0.1 AS key');
|
||||||
|
|
||||||
|
assert.deepEqual(
|
||||||
|
data,
|
||||||
|
[{ key: 0.1 }]
|
||||||
|
);
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('array', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
{ data } = await graph.roQuery('RETURN [null] AS key');
|
||||||
|
|
||||||
|
assert.deepEqual(
|
||||||
|
data,
|
||||||
|
[{ key: [null] }]
|
||||||
|
);
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('edge', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph');
|
||||||
|
|
||||||
|
// check with and without metadata cache
|
||||||
|
for (let i = 0; i < 2; i++) {
|
||||||
|
const { data } = await graph.query('CREATE ()-[edge :edge]->() RETURN edge');
|
||||||
|
assert.ok(Array.isArray(data));
|
||||||
|
assert.equal(data.length, 1);
|
||||||
|
assert.equal(typeof data[0].edge.id, 'number');
|
||||||
|
assert.equal(data[0].edge.relationshipType, 'edge');
|
||||||
|
assert.equal(typeof data[0].edge.sourceId, 'number');
|
||||||
|
assert.equal(typeof data[0].edge.destinationId, 'number');
|
||||||
|
assert.deepEqual(data[0].edge.properties, {});
|
||||||
|
}
|
||||||
|
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('node', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph');
|
||||||
|
|
||||||
|
// check with and without metadata cache
|
||||||
|
for (let i = 0; i < 2; i++) {
|
||||||
|
const { data } = await graph.query('CREATE (node :node { p: 0 }) RETURN node');
|
||||||
|
assert.ok(Array.isArray(data));
|
||||||
|
assert.equal(data.length, 1);
|
||||||
|
assert.equal(typeof data[0].node.id, 'number');
|
||||||
|
assert.deepEqual(data[0].node.labels, ['node']);
|
||||||
|
assert.deepEqual(data[0].node.properties, { p: 0 });
|
||||||
|
}
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('path', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
[, { data }] = await Promise.all([
|
||||||
|
await graph.query('CREATE ()-[:edge]->()'),
|
||||||
|
await graph.roQuery('MATCH path = ()-[:edge]->() RETURN path')
|
||||||
|
]);
|
||||||
|
|
||||||
|
assert.ok(Array.isArray(data));
|
||||||
|
assert.equal(data.length, 1);
|
||||||
|
|
||||||
|
assert.ok(Array.isArray(data[0].path.nodes));
|
||||||
|
assert.equal(data[0].path.nodes.length, 2);
|
||||||
|
for (const node of data[0].path.nodes) {
|
||||||
|
assert.equal(typeof node.id, 'number');
|
||||||
|
assert.deepEqual(node.labels, []);
|
||||||
|
assert.deepEqual(node.properties, {});
|
||||||
|
}
|
||||||
|
|
||||||
|
assert.ok(Array.isArray(data[0].path.edges));
|
||||||
|
assert.equal(data[0].path.edges.length, 1);
|
||||||
|
for (const edge of data[0].path.edges) {
|
||||||
|
assert.equal(typeof edge.id, 'number');
|
||||||
|
assert.equal(edge.relationshipType, 'edge');
|
||||||
|
assert.equal(typeof edge.sourceId, 'number');
|
||||||
|
assert.equal(typeof edge.destinationId, 'number');
|
||||||
|
assert.deepEqual(edge.properties, {});
|
||||||
|
}
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('map', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
{ data } = await graph.roQuery('RETURN { key: "value" } AS map');
|
||||||
|
|
||||||
|
assert.deepEqual(data, [{
|
||||||
|
map: {
|
||||||
|
key: 'value'
|
||||||
|
}
|
||||||
|
}]);
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
|
||||||
|
testUtils.testWithClient('point', async client => {
|
||||||
|
const graph = new Graph(client as any, 'graph'),
|
||||||
|
{ data } = await graph.roQuery('RETURN point({ latitude: 1, longitude: 2 }) AS point');
|
||||||
|
|
||||||
|
assert.deepEqual(data, [{
|
||||||
|
point: {
|
||||||
|
latitude: 1,
|
||||||
|
longitude: 2
|
||||||
|
}
|
||||||
|
}]);
|
||||||
|
}, GLOBAL.SERVERS.OPEN);
|
||||||
|
});
|
359
packages/graph/lib/graph.ts
Normal file
359
packages/graph/lib/graph.ts
Normal file
@@ -0,0 +1,359 @@
|
|||||||
|
import { RedisClientType } from '@redis/client/dist/lib/client/index';
|
||||||
|
import { RedisCommandArgument, RedisFunctions, RedisScripts } from '@redis/client/dist/lib/commands';
|
||||||
|
import { QueryOptions } from './commands';
|
||||||
|
import { QueryReply } from './commands/QUERY';
|
||||||
|
|
||||||
|
interface GraphMetadata {
|
||||||
|
labels: Array<string>;
|
||||||
|
relationshipTypes: Array<string>;
|
||||||
|
propertyKeys: Array<string>;
|
||||||
|
}
|
||||||
|
|
||||||
|
// https://github.com/RedisGraph/RedisGraph/blob/master/src/resultset/formatters/resultset_formatter.h#L20
|
||||||
|
enum GraphValueTypes {
|
||||||
|
UNKNOWN = 0,
|
||||||
|
NULL = 1,
|
||||||
|
STRING = 2,
|
||||||
|
INTEGER = 3,
|
||||||
|
BOOLEAN = 4,
|
||||||
|
DOUBLE = 5,
|
||||||
|
ARRAY = 6,
|
||||||
|
EDGE = 7,
|
||||||
|
NODE = 8,
|
||||||
|
PATH = 9,
|
||||||
|
MAP = 10,
|
||||||
|
POINT = 11
|
||||||
|
}
|
||||||
|
|
||||||
|
type GraphEntityRawProperties = Array<[
|
||||||
|
id: number,
|
||||||
|
...value: GraphRawValue
|
||||||
|
]>;
|
||||||
|
|
||||||
|
type GraphEdgeRawValue = [
|
||||||
|
GraphValueTypes.EDGE,
|
||||||
|
[
|
||||||
|
id: number,
|
||||||
|
relationshipTypeId: number,
|
||||||
|
sourceId: number,
|
||||||
|
destinationId: number,
|
||||||
|
properties: GraphEntityRawProperties
|
||||||
|
]
|
||||||
|
];
|
||||||
|
|
||||||
|
type GraphNodeRawValue = [
|
||||||
|
GraphValueTypes.NODE,
|
||||||
|
[
|
||||||
|
id: number,
|
||||||
|
labelIds: Array<number>,
|
||||||
|
properties: GraphEntityRawProperties
|
||||||
|
]
|
||||||
|
];
|
||||||
|
|
||||||
|
type GraphPathRawValue = [
|
||||||
|
GraphValueTypes.PATH,
|
||||||
|
[
|
||||||
|
nodes: [
|
||||||
|
GraphValueTypes.ARRAY,
|
||||||
|
Array<GraphNodeRawValue>
|
||||||
|
],
|
||||||
|
edges: [
|
||||||
|
GraphValueTypes.ARRAY,
|
||||||
|
Array<GraphEdgeRawValue>
|
||||||
|
]
|
||||||
|
]
|
||||||
|
];
|
||||||
|
|
||||||
|
type GraphMapRawValue = [
|
||||||
|
GraphValueTypes.MAP,
|
||||||
|
Array<string | GraphRawValue>
|
||||||
|
];
|
||||||
|
|
||||||
|
type GraphRawValue = [
|
||||||
|
GraphValueTypes.NULL,
|
||||||
|
null
|
||||||
|
] | [
|
||||||
|
GraphValueTypes.STRING,
|
||||||
|
string
|
||||||
|
] | [
|
||||||
|
GraphValueTypes.INTEGER,
|
||||||
|
number
|
||||||
|
] | [
|
||||||
|
GraphValueTypes.BOOLEAN,
|
||||||
|
string
|
||||||
|
] | [
|
||||||
|
GraphValueTypes.DOUBLE,
|
||||||
|
string
|
||||||
|
] | [
|
||||||
|
GraphValueTypes.ARRAY,
|
||||||
|
Array<GraphRawValue>
|
||||||
|
] | GraphEdgeRawValue | GraphNodeRawValue | GraphPathRawValue | GraphMapRawValue | [
|
||||||
|
GraphValueTypes.POINT,
|
||||||
|
[
|
||||||
|
latitude: string,
|
||||||
|
longitude: string
|
||||||
|
]
|
||||||
|
];
|
||||||
|
|
||||||
|
type GraphEntityProperties = Record<string, GraphValue>;
|
||||||
|
|
||||||
|
interface GraphEdge {
|
||||||
|
id: number;
|
||||||
|
relationshipType: string;
|
||||||
|
sourceId: number;
|
||||||
|
destinationId: number;
|
||||||
|
properties: GraphEntityProperties;
|
||||||
|
}
|
||||||
|
|
||||||
|
interface GraphNode {
|
||||||
|
id: number;
|
||||||
|
labels: Array<string>;
|
||||||
|
properties: GraphEntityProperties;
|
||||||
|
}
|
||||||
|
|
||||||
|
interface GraphPath {
|
||||||
|
nodes: Array<GraphNode>;
|
||||||
|
edges: Array<GraphEdge>;
|
||||||
|
}
|
||||||
|
|
||||||
|
type GraphMap = {
|
||||||
|
[key: string]: GraphValue;
|
||||||
|
};
|
||||||
|
|
||||||
|
type GraphValue = null | string | number | boolean | Array<GraphValue> | {
|
||||||
|
} | GraphEdge | GraphNode | GraphPath | GraphMap | {
|
||||||
|
latitude: string;
|
||||||
|
longitude: string;
|
||||||
|
};
|
||||||
|
|
||||||
|
type GraphReply<T> = Omit<QueryReply, 'headers' | 'data'> & {
|
||||||
|
data?: Array<T>;
|
||||||
|
};
|
||||||
|
|
||||||
|
type GraphClientType = RedisClientType<{
|
||||||
|
graph: {
|
||||||
|
query: typeof import('./commands/QUERY'),
|
||||||
|
roQuery: typeof import('./commands/RO_QUERY')
|
||||||
|
}
|
||||||
|
}, RedisFunctions, RedisScripts>;
|
||||||
|
|
||||||
|
export default class Graph {
|
||||||
|
#client: GraphClientType;
|
||||||
|
#name: string;
|
||||||
|
#metadata?: GraphMetadata;
|
||||||
|
|
||||||
|
constructor(
|
||||||
|
client: GraphClientType,
|
||||||
|
name: string
|
||||||
|
) {
|
||||||
|
this.#client = client;
|
||||||
|
this.#name = name;
|
||||||
|
}
|
||||||
|
|
||||||
|
async query<T>(
|
||||||
|
query: RedisCommandArgument,
|
||||||
|
options?: QueryOptions
|
||||||
|
) {
|
||||||
|
return this.#parseReply<T>(
|
||||||
|
await this.#client.graph.query(
|
||||||
|
this.#name,
|
||||||
|
query,
|
||||||
|
options,
|
||||||
|
true
|
||||||
|
)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
async roQuery<T>(
|
||||||
|
query: RedisCommandArgument,
|
||||||
|
options?: QueryOptions
|
||||||
|
) {
|
||||||
|
return this.#parseReply<T>(
|
||||||
|
await this.#client.graph.roQuery(
|
||||||
|
this.#name,
|
||||||
|
query,
|
||||||
|
options,
|
||||||
|
true
|
||||||
|
)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
#setMetadataPromise?: Promise<GraphMetadata>;
|
||||||
|
|
||||||
|
#updateMetadata(): Promise<GraphMetadata> {
|
||||||
|
this.#setMetadataPromise ??= this.#setMetadata()
|
||||||
|
.finally(() => this.#setMetadataPromise = undefined);
|
||||||
|
return this.#setMetadataPromise;
|
||||||
|
}
|
||||||
|
|
||||||
|
// DO NOT use directly, use #updateMetadata instead
|
||||||
|
async #setMetadata(): Promise<GraphMetadata> {
|
||||||
|
const [labels, relationshipTypes, propertyKeys] = await Promise.all([
|
||||||
|
this.#client.graph.roQuery(this.#name, 'CALL db.labels()'),
|
||||||
|
this.#client.graph.roQuery(this.#name, 'CALL db.relationshipTypes()'),
|
||||||
|
this.#client.graph.roQuery(this.#name, 'CALL db.propertyKeys()')
|
||||||
|
]);
|
||||||
|
|
||||||
|
this.#metadata = {
|
||||||
|
labels: this.#cleanMetadataArray(labels.data as Array<[string]>),
|
||||||
|
relationshipTypes: this.#cleanMetadataArray(relationshipTypes.data as Array<[string]>),
|
||||||
|
propertyKeys: this.#cleanMetadataArray(propertyKeys.data as Array<[string]>)
|
||||||
|
};
|
||||||
|
|
||||||
|
return this.#metadata;
|
||||||
|
}
|
||||||
|
|
||||||
|
#cleanMetadataArray(arr: Array<[string]>): Array<string> {
|
||||||
|
return arr.map(([value]) => value);
|
||||||
|
}
|
||||||
|
|
||||||
|
#getMetadata<T extends keyof GraphMetadata>(
|
||||||
|
key: T,
|
||||||
|
id: number
|
||||||
|
): GraphMetadata[T][number] | Promise<GraphMetadata[T][number]> {
|
||||||
|
return this.#metadata?.[key][id] ?? this.#getMetadataAsync(key, id);
|
||||||
|
}
|
||||||
|
|
||||||
|
// DO NOT use directly, use #getMetadata instead
|
||||||
|
async #getMetadataAsync<T extends keyof GraphMetadata>(
|
||||||
|
key: T,
|
||||||
|
id: number
|
||||||
|
): Promise<GraphMetadata[T][number]> {
|
||||||
|
const value = (await this.#updateMetadata())[key][id];
|
||||||
|
if (value === undefined) throw new Error(`Cannot find value from ${key}[${id}]`);
|
||||||
|
return value;
|
||||||
|
}
|
||||||
|
|
||||||
|
async #parseReply<T>(reply: QueryReply): Promise<GraphReply<T>> {
|
||||||
|
if (!reply.data) return reply;
|
||||||
|
|
||||||
|
const promises: Array<Promise<unknown>> = [],
|
||||||
|
parsed = {
|
||||||
|
metadata: reply.metadata,
|
||||||
|
data: reply.data!.map((row: any) => {
|
||||||
|
const data: Record<string, GraphValue> = {};
|
||||||
|
for (let i = 0; i < row.length; i++) {
|
||||||
|
data[reply.headers[i][1]] = this.#parseValue(row[i], promises);
|
||||||
|
}
|
||||||
|
|
||||||
|
return data as unknown as T;
|
||||||
|
})
|
||||||
|
};
|
||||||
|
|
||||||
|
if (promises.length) await Promise.all(promises);
|
||||||
|
|
||||||
|
return parsed;
|
||||||
|
}
|
||||||
|
|
||||||
|
#parseValue([valueType, value]: GraphRawValue, promises: Array<Promise<unknown>>): GraphValue {
|
||||||
|
switch (valueType) {
|
||||||
|
case GraphValueTypes.NULL:
|
||||||
|
return null;
|
||||||
|
|
||||||
|
case GraphValueTypes.STRING:
|
||||||
|
case GraphValueTypes.INTEGER:
|
||||||
|
return value;
|
||||||
|
|
||||||
|
case GraphValueTypes.BOOLEAN:
|
||||||
|
return value === 'true';
|
||||||
|
|
||||||
|
case GraphValueTypes.DOUBLE:
|
||||||
|
return parseFloat(value);
|
||||||
|
|
||||||
|
case GraphValueTypes.ARRAY:
|
||||||
|
return value.map(x => this.#parseValue(x, promises));
|
||||||
|
|
||||||
|
case GraphValueTypes.EDGE:
|
||||||
|
return this.#parseEdge(value, promises);
|
||||||
|
|
||||||
|
case GraphValueTypes.NODE:
|
||||||
|
return this.#parseNode(value, promises);
|
||||||
|
|
||||||
|
case GraphValueTypes.PATH:
|
||||||
|
return {
|
||||||
|
nodes: value[0][1].map(([, node]) => this.#parseNode(node, promises)),
|
||||||
|
edges: value[1][1].map(([, edge]) => this.#parseEdge(edge, promises))
|
||||||
|
};
|
||||||
|
|
||||||
|
case GraphValueTypes.MAP:
|
||||||
|
const map: GraphMap = {};
|
||||||
|
for (let i = 0; i < value.length; i++) {
|
||||||
|
map[value[i++] as string] = this.#parseValue(value[i] as GraphRawValue, promises);
|
||||||
|
}
|
||||||
|
|
||||||
|
return map;
|
||||||
|
|
||||||
|
case GraphValueTypes.POINT:
|
||||||
|
return {
|
||||||
|
latitude: parseFloat(value[0]),
|
||||||
|
longitude: parseFloat(value[1])
|
||||||
|
};
|
||||||
|
|
||||||
|
default:
|
||||||
|
throw new Error(`unknown scalar type: ${valueType}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#parseEdge([
|
||||||
|
id,
|
||||||
|
relationshipTypeId,
|
||||||
|
sourceId,
|
||||||
|
destinationId,
|
||||||
|
properties
|
||||||
|
]: GraphEdgeRawValue[1], promises: Array<Promise<unknown>>): GraphEdge {
|
||||||
|
const edge = {
|
||||||
|
id,
|
||||||
|
sourceId,
|
||||||
|
destinationId,
|
||||||
|
properties: this.#parseProperties(properties, promises)
|
||||||
|
} as GraphEdge;
|
||||||
|
|
||||||
|
const relationshipType = this.#getMetadata('relationshipTypes', relationshipTypeId);
|
||||||
|
if (relationshipType instanceof Promise) {
|
||||||
|
promises.push(
|
||||||
|
relationshipType.then(value => edge.relationshipType = value)
|
||||||
|
);
|
||||||
|
} else {
|
||||||
|
edge.relationshipType = relationshipType;
|
||||||
|
}
|
||||||
|
|
||||||
|
return edge;
|
||||||
|
}
|
||||||
|
|
||||||
|
#parseNode([
|
||||||
|
id,
|
||||||
|
labelIds,
|
||||||
|
properties
|
||||||
|
]: GraphNodeRawValue[1], promises: Array<Promise<unknown>>): GraphNode {
|
||||||
|
const labels = new Array<string>(labelIds.length);
|
||||||
|
for (let i = 0; i < labelIds.length; i++) {
|
||||||
|
const value = this.#getMetadata('labels', labelIds[i]);
|
||||||
|
if (value instanceof Promise) {
|
||||||
|
promises.push(value.then(value => labels[i] = value));
|
||||||
|
} else {
|
||||||
|
labels[i] = value;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return {
|
||||||
|
id,
|
||||||
|
labels,
|
||||||
|
properties: this.#parseProperties(properties, promises)
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
#parseProperties(raw: GraphEntityRawProperties, promises: Array<Promise<unknown>>): GraphEntityProperties {
|
||||||
|
const parsed: GraphEntityProperties = {};
|
||||||
|
for (const [id, type, value] of raw) {
|
||||||
|
const parsedValue = this.#parseValue([type, value] as GraphRawValue, promises),
|
||||||
|
key = this.#getMetadata('propertyKeys', id);
|
||||||
|
if (key instanceof Promise) {
|
||||||
|
promises.push(key.then(key => parsed[key] = parsedValue));
|
||||||
|
} else {
|
||||||
|
parsed[key] = parsedValue;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return parsed;
|
||||||
|
}
|
||||||
|
}
|
@@ -1 +1,2 @@
|
|||||||
export { default } from './commands';
|
export { default } from './commands';
|
||||||
|
export { default as Graph } from './graph';
|
||||||
|
@@ -1,8 +1,8 @@
|
|||||||
import { createConnection } from 'net';
|
import { createConnection } from 'net';
|
||||||
import { once } from 'events';
|
import { once } from 'events';
|
||||||
import { RedisModules, RedisFunctions, RedisScripts } from '@redis/client/lib/commands';
|
import { RedisModules, RedisFunctions, RedisScripts } from '@redis/client/dist/lib/commands';
|
||||||
import RedisClient, { RedisClientType } from '@redis/client/lib/client';
|
import RedisClient, { RedisClientType } from '@redis/client/dist/lib/client';
|
||||||
import { promiseTimeout } from '@redis/client/lib/utils';
|
import { promiseTimeout } from '@redis/client/dist/lib/utils';
|
||||||
import * as path from 'path';
|
import * as path from 'path';
|
||||||
import { promisify } from 'util';
|
import { promisify } from 'util';
|
||||||
import { exec } from 'child_process';
|
import { exec } from 'child_process';
|
||||||
|
Reference in New Issue
Block a user