fix #2189 - add graph --compact support

packages/graph/README.md

@@ -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`
+await graph.query(
+  'CREATE (:Rider { name: $riderName })-[:rides]->(:Team { name: $teamName })',
+  {
+    params: {
+      riderName: 'Buzz Aldrin',
+      teamName: 'Apollo'
+    }
+  }
 );
 
-console.log(result);
-```
+const result = await graph.roQuery(
+  'MATCH (r:Rider)-[:rides]->(t:Team { name: $name }) RETURN r.name AS name',
+  {
+    name: 'Apollo'
+  }
+);
 
-Output from console log:
-```json
-{
-  headers: [ 'r.name', 't.name' ],
-  data: [ [ 'Buzz Aldrin', 'Apollo' ] ],
-  metadata: [
-    'Cached execution: 0',
-    'Query internal execution time: 0.431700 milliseconds'
-  ]
-}
+console.log(result.data); // [{ name: 'Buzz Aldrin' }]
 ```

packages/graph/lib/commands/QUERY.spec.ts

@@ -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);
 });

packages/graph/lib/commands/QUERY.ts

@@ -1,41 +1,53 @@
 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>;
 
 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]

packages/graph/lib/commands/RO_QUERY.spec.ts

@@ -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);
+});

packages/graph/lib/commands/QUERY_RO.ts → packages/graph/lib/commands/RO_QUERY.ts

@@ -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
     );
 }
 

packages/graph/lib/commands/index.spec.ts

@@ -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']
+    );
+  });
+});

packages/graph/lib/commands/index.ts

@@ -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,
-        query
-    );
+    args.push(graph);
 
-    if (timeout !== undefined) {
-        args.push(timeout.toString());
+    if (typeof options === 'number') {
+        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;
-}
+}
+
+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}`)
+    }
+}