You've already forked node-redis
mirror of
https://github.com/redis/node-redis.git
synced 2025-08-04 15:02:09 +03:00
* 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 @@
|
||||
|
||||
Example usage:
|
||||
```javascript
|
||||
import { createClient } from 'redis';
|
||||
import { createClient, Graph } from 'redis';
|
||||
|
||||
const client = createClient();
|
||||
client.on('error', (err) => console.log('Redis Client Error', err));
|
||||
|
||||
await client.connect();
|
||||
|
||||
await client.graph.query(
|
||||
'graph',
|
||||
"CREATE (:Rider { name: 'Buzz Aldrin' })-[:rides]->(:Team { name: 'Apollo' })"
|
||||
);
|
||||
const graph = new Graph(client, 'graph');
|
||||
|
||||
const result = await client.graph.query(
|
||||
'graph',
|
||||
`MATCH (r:Rider)-[:rides]->(t:Team) WHERE t.name = 'Apollo' RETURN r.name, t.name`
|
||||
);
|
||||
|
||||
console.log(result);
|
||||
```
|
||||
|
||||
Output from console log:
|
||||
```json
|
||||
await graph.query(
|
||||
'CREATE (:Rider { name: $riderName })-[:rides]->(:Team { name: $teamName })',
|
||||
{
|
||||
headers: [ 'r.name', 't.name' ],
|
||||
data: [ [ 'Buzz Aldrin', 'Apollo' ] ],
|
||||
metadata: [
|
||||
'Cached execution: 0',
|
||||
'Query internal execution time: 0.431700 milliseconds'
|
||||
]
|
||||
params: {
|
||||
riderName: 'Buzz Aldrin',
|
||||
teamName: 'Apollo'
|
||||
}
|
||||
}
|
||||
);
|
||||
|
||||
const result = await graph.roQuery(
|
||||
'MATCH (r:Rider)-[:rides]->(t:Team { name: $name }) RETURN r.name AS name',
|
||||
{
|
||||
name: 'Apollo'
|
||||
}
|
||||
);
|
||||
|
||||
console.log(result.data); // [{ name: 'Buzz Aldrin' }]
|
||||
```
|
||||
|
@@ -5,18 +5,13 @@ import { transformArguments } from './QUERY';
|
||||
describe('QUERY', () => {
|
||||
it('transformArguments', () => {
|
||||
assert.deepEqual(
|
||||
transformArguments('key', '*', 100),
|
||||
['GRAPH.QUERY', 'key', '*', '100']
|
||||
transformArguments('key', 'query'),
|
||||
['GRAPH.QUERY', 'key', 'query']
|
||||
);
|
||||
});
|
||||
|
||||
testUtils.testWithClient('client.graph.query', async client => {
|
||||
await client.graph.query('key',
|
||||
"CREATE (r:human {name:'roi', age:34}), (a:human {name:'amit', age:32}), (r)-[:knows]->(a)"
|
||||
);
|
||||
const reply = await client.graph.query('key',
|
||||
"MATCH (r:human)-[:knows]->(a:human) RETURN r.age, r.name"
|
||||
);
|
||||
assert.equal(reply.data.length, 1);
|
||||
const { data } = await client.graph.query('key', 'RETURN 0');
|
||||
assert.deepEqual(data, [[0]]);
|
||||
}, GLOBAL.SERVERS.OPEN);
|
||||
});
|
||||
|
@@ -1,24 +1,26 @@
|
||||
import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands/index';
|
||||
import { pushQueryArguments } from '.';
|
||||
import { pushQueryArguments, QueryOptionsBackwardCompatible } from '.';
|
||||
|
||||
export const FIRST_KEY_INDEX = 1;
|
||||
|
||||
export function transformArguments(
|
||||
graph: RedisCommandArgument,
|
||||
query: RedisCommandArgument,
|
||||
timeout?: number
|
||||
options?: QueryOptionsBackwardCompatible,
|
||||
compact?: boolean
|
||||
): RedisCommandArguments {
|
||||
return pushQueryArguments(
|
||||
['GRAPH.QUERY'],
|
||||
graph,
|
||||
query,
|
||||
timeout
|
||||
options,
|
||||
compact
|
||||
);
|
||||
}
|
||||
|
||||
type Headers = Array<string>;
|
||||
|
||||
type Data = Array<Array<string | number | null>>;
|
||||
type Data = Array<string | number | null | Data>;
|
||||
|
||||
type Metadata = Array<string>;
|
||||
|
||||
@@ -26,16 +28,26 @@ type QueryRawReply = [
|
||||
headers: Headers,
|
||||
data: Data,
|
||||
metadata: Metadata
|
||||
] | [
|
||||
metadata: Metadata
|
||||
];
|
||||
|
||||
interface QueryReply {
|
||||
headers: Headers,
|
||||
data: Data,
|
||||
metadata: Metadata
|
||||
export type QueryReply = {
|
||||
headers: undefined;
|
||||
data: undefined;
|
||||
metadata: Metadata;
|
||||
} | {
|
||||
headers: Headers;
|
||||
data: Data;
|
||||
metadata: Metadata;
|
||||
};
|
||||
|
||||
export function transformReply(reply: QueryRawReply): QueryReply {
|
||||
return {
|
||||
return reply.length === 1 ? {
|
||||
headers: undefined,
|
||||
data: undefined,
|
||||
metadata: reply[0]
|
||||
} : {
|
||||
headers: reply[0],
|
||||
data: reply[1],
|
||||
metadata: reply[2]
|
||||
|
@@ -1,22 +0,0 @@
|
||||
import { strict as assert } from 'assert';
|
||||
import testUtils, { GLOBAL } from '../test-utils';
|
||||
import { transformArguments } from './QUERY_RO';
|
||||
|
||||
describe('QUERY_RO', () => {
|
||||
it('transformArguments', () => {
|
||||
assert.deepEqual(
|
||||
transformArguments('key', '*', 100),
|
||||
['GRAPH.RO_QUERY', 'key', '*', '100']
|
||||
);
|
||||
});
|
||||
|
||||
testUtils.testWithClient('client.graph.queryRo', async client => {
|
||||
await client.graph.query('key',
|
||||
"CREATE (r:human {name:'roi', age:34}), (a:human {name:'amit', age:32}), (r)-[:knows]->(a)"
|
||||
);
|
||||
const reply = await client.graph.queryRo('key',
|
||||
"MATCH (r:human)-[:knows]->(a:human) RETURN r.age, r.name"
|
||||
);
|
||||
assert.equal(reply.data.length, 1);
|
||||
}, GLOBAL.SERVERS.OPEN);
|
||||
});
|
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 @@
|
||||
import { strict as assert } from 'assert';
|
||||
import testUtils, { GLOBAL } from '../test-utils';
|
||||
import { transformArguments } from './RO_QUERY';
|
||||
|
||||
describe('RO_QUERY', () => {
|
||||
it('transformArguments', () => {
|
||||
assert.deepEqual(
|
||||
transformArguments('key', 'query'),
|
||||
['GRAPH.RO_QUERY', 'key', 'query']
|
||||
);
|
||||
});
|
||||
|
||||
testUtils.testWithClient('client.graph.roQuery', async client => {
|
||||
const { data } = await client.graph.roQuery('key', 'RETURN 0');
|
||||
assert.deepEqual(data, [[0]]);
|
||||
}, GLOBAL.SERVERS.OPEN);
|
||||
});
|
@@ -1,5 +1,5 @@
|
||||
import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands';
|
||||
import { pushQueryArguments } from '.';
|
||||
import { pushQueryArguments, QueryOptionsBackwardCompatible } from '.';
|
||||
|
||||
export { FIRST_KEY_INDEX } from './QUERY';
|
||||
|
||||
@@ -8,13 +8,15 @@ export const IS_READ_ONLY = true;
|
||||
export function transformArguments(
|
||||
graph: RedisCommandArgument,
|
||||
query: RedisCommandArgument,
|
||||
timeout?: number
|
||||
options?: QueryOptionsBackwardCompatible,
|
||||
compact?: boolean
|
||||
): RedisCommandArguments {
|
||||
return pushQueryArguments(
|
||||
['GRAPH.RO_QUERY'],
|
||||
graph,
|
||||
query,
|
||||
timeout
|
||||
options,
|
||||
compact
|
||||
);
|
||||
}
|
||||
|
62
packages/graph/lib/commands/index.spec.ts
Normal file
62
packages/graph/lib/commands/index.spec.ts
Normal file
@@ -0,0 +1,62 @@
|
||||
import { strict as assert } from 'assert';
|
||||
import { pushQueryArguments } from '.';
|
||||
|
||||
describe('pushQueryArguments', () => {
|
||||
it('simple', () => {
|
||||
assert.deepEqual(
|
||||
pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query'),
|
||||
['GRAPH.QUERY', 'graph', 'query']
|
||||
);
|
||||
});
|
||||
|
||||
describe('params', () => {
|
||||
it('all types', () => {
|
||||
assert.deepEqual(
|
||||
pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', {
|
||||
params: {
|
||||
null: null,
|
||||
string: '"\\',
|
||||
number: 0,
|
||||
boolean: false,
|
||||
array: [0],
|
||||
object: {a: 0}
|
||||
}
|
||||
}),
|
||||
['GRAPH.QUERY', 'graph', 'CYPHER null=null string="\\"\\\\" number=0 boolean=false array=[0] object={a:0} query']
|
||||
);
|
||||
});
|
||||
|
||||
it('TypeError', () => {
|
||||
assert.throws(() => {
|
||||
pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', {
|
||||
params: {
|
||||
a: undefined as any
|
||||
}
|
||||
})
|
||||
}, TypeError);
|
||||
});
|
||||
});
|
||||
|
||||
it('TIMEOUT backward compatible', () => {
|
||||
assert.deepEqual(
|
||||
pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', 1),
|
||||
['GRAPH.QUERY', 'graph', 'query', 'TIMEOUT', '1']
|
||||
);
|
||||
});
|
||||
|
||||
it('TIMEOUT', () => {
|
||||
assert.deepEqual(
|
||||
pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', {
|
||||
TIMEOUT: 1
|
||||
}),
|
||||
['GRAPH.QUERY', 'graph', 'query', 'TIMEOUT', '1']
|
||||
);
|
||||
});
|
||||
|
||||
it('compact', () => {
|
||||
assert.deepEqual(
|
||||
pushQueryArguments(['GRAPH.QUERY'], 'graph', 'query', undefined, true),
|
||||
['GRAPH.QUERY', 'graph', 'query', '--compact']
|
||||
);
|
||||
});
|
||||
});
|
@@ -4,8 +4,8 @@ import * as DELETE from './DELETE';
|
||||
import * as EXPLAIN from './EXPLAIN';
|
||||
import * as LIST from './LIST';
|
||||
import * as PROFILE from './PROFILE';
|
||||
import * as QUERY_RO from './QUERY_RO';
|
||||
import * as QUERY from './QUERY';
|
||||
import * as RO_QUERY from './RO_QUERY';
|
||||
import * as SLOWLOG from './SLOWLOG';
|
||||
import { RedisCommandArgument, RedisCommandArguments } from '@redis/client/dist/lib/commands';
|
||||
|
||||
@@ -22,28 +22,93 @@ export default {
|
||||
list: LIST,
|
||||
PROFILE,
|
||||
profile: PROFILE,
|
||||
QUERY_RO,
|
||||
queryRo: QUERY_RO,
|
||||
QUERY,
|
||||
query: QUERY,
|
||||
RO_QUERY,
|
||||
roQuery: RO_QUERY,
|
||||
SLOWLOG,
|
||||
slowLog: SLOWLOG
|
||||
};
|
||||
|
||||
type QueryParam = null | string | number | boolean | QueryParams | Array<QueryParam>;
|
||||
|
||||
type QueryParams = {
|
||||
[key: string]: QueryParam;
|
||||
};
|
||||
|
||||
export interface QueryOptions {
|
||||
params?: QueryParams;
|
||||
TIMEOUT?: number;
|
||||
}
|
||||
|
||||
export type QueryOptionsBackwardCompatible = QueryOptions | number;
|
||||
|
||||
export function pushQueryArguments(
|
||||
args: RedisCommandArguments,
|
||||
graph: RedisCommandArgument,
|
||||
query: RedisCommandArgument,
|
||||
timeout?: number
|
||||
options?: QueryOptionsBackwardCompatible,
|
||||
compact?: boolean
|
||||
): RedisCommandArguments {
|
||||
args.push(graph);
|
||||
|
||||
if (typeof options === 'number') {
|
||||
args.push(query);
|
||||
pushTimeout(args, options);
|
||||
} else {
|
||||
args.push(
|
||||
graph,
|
||||
options?.params ?
|
||||
`CYPHER ${queryParamsToString(options.params)} ${query}` :
|
||||
query
|
||||
);
|
||||
|
||||
if (timeout !== undefined) {
|
||||
args.push(timeout.toString());
|
||||
if (options?.TIMEOUT !== undefined) {
|
||||
pushTimeout(args, options.TIMEOUT);
|
||||
}
|
||||
}
|
||||
|
||||
if (compact) {
|
||||
args.push('--compact');
|
||||
}
|
||||
|
||||
return args;
|
||||
}
|
||||
|
||||
function pushTimeout(args: RedisCommandArguments, timeout: number): void {
|
||||
args.push('TIMEOUT', timeout.toString());
|
||||
}
|
||||
|
||||
function queryParamsToString(params: QueryParams): string {
|
||||
const parts = [];
|
||||
for (const [key, value] of Object.entries(params)) {
|
||||
parts.push(`${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 as Graph } from './graph';
|
||||
|
@@ -1,8 +1,8 @@
|
||||
import { createConnection } from 'net';
|
||||
import { once } from 'events';
|
||||
import { RedisModules, RedisFunctions, RedisScripts } from '@redis/client/lib/commands';
|
||||
import RedisClient, { RedisClientType } from '@redis/client/lib/client';
|
||||
import { promiseTimeout } from '@redis/client/lib/utils';
|
||||
import { RedisModules, RedisFunctions, RedisScripts } from '@redis/client/dist/lib/commands';
|
||||
import RedisClient, { RedisClientType } from '@redis/client/dist/lib/client';
|
||||
import { promiseTimeout } from '@redis/client/dist/lib/utils';
|
||||
import * as path from 'path';
|
||||
import { promisify } from 'util';
|
||||
import { exec } from 'child_process';
|
||||
|
Reference in New Issue
Block a user