Node: added FCALL and FCALL_RO commands

CHANGELOG.md

@@ -21,6 +21,7 @@
 * Node: Added FUNCTION LOAD command ([#1969](https://github.com/valkey-io/valkey-glide/pull/1969))
 * Node: Added FUNCTION DELETE command ([#1990](https://github.com/valkey-io/valkey-glide/pull/1990))
 * Node: Added FUNCTION FLUSH command ([#1984](https://github.com/valkey-io/valkey-glide/pull/1984))
+* Node: Added FCALL and FCALL_RO commands ([#2011](https://github.com/valkey-io/valkey-glide/pull/2011))
 * Node: Added ZMPOP command ([#1994](https://github.com/valkey-io/valkey-glide/pull/1994))
 
 #### Fixes

node/src/BaseClient.ts

@@ -13,6 +13,7 @@ import { Buffer, BufferWriter, Reader, Writer } from "protobufjs";
 import {
     AggregationType,
     ExpireOptions,
+    GeoUnit,
     InsertPosition,
     KeyWeight,
     RangeByIndex,
@@ -34,10 +35,12 @@ import {
     createExists,
     createExpire,
     createExpireAt,
+    createFCall,
+    createFCallReadOnly,
     createGeoAdd,
     createGeoDist,
-    createGeoPos,
     createGeoHash,
+    createGeoPos,
     createGet,
     createGetBit,
     createGetDel,
@@ -129,7 +132,6 @@ import {
     createZRevRank,
     createZRevRankWithScore,
     createZScore,
-    GeoUnit,
 } from "./Commands";
 import { BitOffsetOptions } from "./commands/BitOffsetOptions";
 import { GeoAddOptions } from "./commands/geospatial/GeoAddOptions";
@@ -3330,6 +3332,63 @@ export class BaseClient {
         return this.createWritePromise(createObjectRefcount(key));
     }
 
+    /**
+     * Invokes a previously loaded function.
+     *
+     * See https://valkey.io/commands/fcall/ for more details.
+     *
+     * since Valkey version 7.0.0.
+     *
+     * @remarks When in cluster mode, all `keys` must map to the same hash slot.
+     * @param func - The function name.
+     * @param keys - A list of `keys` accessed by the function. To ensure the correct execution of functions,
+     *     all names of keys that a function accesses must be explicitly provided as `keys`.
+     * @param args - A list of `function` arguments and it should not represent names of keys.
+     * @returns The invoked function's return value.
+     *
+     * @example
+     * ```typescript
+     * const response = await client.fcall("Deep_Thought", [], []);
+     * console.log(response); // Output: Returns the function's return value.
+     * ```
+     */
+    public fcall(
+        func: string,
+        keys: string[],
+        args: string[],
+    ): Promise<string> {
+        return this.createWritePromise(createFCall(func, keys, args));
+    }
+
+    /**
+     * Invokes a previously loaded read-only function.
+     *
+     * See https://valkey.io/commands/fcall/ for more details.
+     *
+     * since Valkey version 7.0.0.
+     *
+     * @remarks When in cluster mode, all `keys` must map to the same hash slot.
+     * @param func - The function name.
+     * @param keys - A list of `keys` accessed by the function. To ensure the correct execution of functions,
+     *     all names of keys that a function accesses must be explicitly provided as `keys`.
+     * @param args - A list of `function` arguments and it should not represent names of keys.
+     * @returns The invoked function's return value.
+     *
+     * @example
+     * ```typescript
+     * const response = await client.fcallReadOnly("Deep_Thought", ["key1"], ["Answer", "to", "the",
+     *            "Ultimate", "Question", "of", "Life,", "the", "Universe,", "and", "Everything"]);
+     * console.log(response); // Output: 42 # The return value on the function that was executed.
+     * ```
+     */
+    public fcallReadonly(
+        func: string,
+        keys: string[],
+        args: string[],
+    ): Promise<string> {
+        return this.createWritePromise(createFCallReadOnly(func, keys, args));
+    }
+
     /**
      * Returns the index of the first occurrence of `element` inside the list specified by `key`. If no
      * match is found, `null` is returned. If the `count` option is specified, then the function returns

node/src/Commands.ts

@@ -1584,6 +1584,32 @@ export function createBLPop(
     return createCommand(RequestType.BLPop, args);
 }
 
+/**
+ * @internal
+ */
+export function createFCall(
+    func: string,
+    keys: string[],
+    args: string[],
+): command_request.Command {
+    let params: string[] = [];
+    params = params.concat(func, keys.length.toString(), keys, args);
+    return createCommand(RequestType.FCall, params);
+}
+
+/**
+ * @internal
+ */
+export function createFCallReadOnly(
+    func: string,
+    keys: string[],
+    args: string[],
+): command_request.Command {
+    let params: string[] = [];
+    params = params.concat(func, keys.length.toString(), keys, args);
+    return createCommand(RequestType.FCallReadOnly, params);
+}
+
 /**
  * @internal
  */
@@ -1593,6 +1619,17 @@ export function createFunctionDelete(
     return createCommand(RequestType.FunctionDelete, [libraryCode]);
 }
 
+/**
+ * @internal
+ */
+export function createFunctionFlush(mode?: FlushMode): command_request.Command {
+    if (mode) {
+        return createCommand(RequestType.FunctionFlush, [mode.toString()]);
+    } else {
+        return createCommand(RequestType.FunctionFlush, []);
+    }
+}
+
 /**
  * @internal
  */
@@ -1616,17 +1653,6 @@ export function createBitCount(
     return createCommand(RequestType.BitCount, args);
 }
 
-/**
- * @internal
- */
-export function createFunctionFlush(mode?: FlushMode): command_request.Command {
-    if (mode) {
-        return createCommand(RequestType.FunctionFlush, [mode.toString()]);
-    } else {
-        return createCommand(RequestType.FunctionFlush, []);
-    }
-}
-
 export type StreamReadOptions = {
     /**
      * If set, the read request will block for the set amount of milliseconds or

node/src/GlideClusterClient.ts

@@ -21,6 +21,8 @@ import {
     createCustomCommand,
     createDBSize,
     createEcho,
+    createFCall,
+    createFCallReadOnly,
     createFlushAll,
     createFlushDB,
     createFunctionDelete,
@@ -659,6 +661,67 @@ export class GlideClusterClient extends BaseClient {
         );
     }
 
+    /**
+     * Invokes a previously loaded function.
+     *
+     * See https://valkey.io/commands/fcall/ for more details.
+     *
+     * since Valkey version 7.0.0.
+     *
+     * @param func - The function name.
+     * @param args - A list of `function` arguments and it should not represent names of keys.
+     * @param route - The command will be routed to a random node, unless `route` is provided, in which
+     *     case the client will route the command to the nodes defined by `route`.
+     * @returns The invoked function's return value.
+     *
+     * @example
+     * ```typescript
+     * const response = await client.fcallWithRoute("Deep_Thought", [], "randomNode");
+     * console.log(response); // Output: Returns the function's return value.
+     * ```
+     */
+    public fcallWithRoute(
+        func: string,
+        args: string[],
+        route?: Routes,
+    ): Promise<ReturnType> {
+        return this.createWritePromise(
+            createFCall(func, [], args),
+            toProtobufRoute(route),
+        );
+    }
+
+    /**
+     * Invokes a previously loaded read-only function.
+     *
+     * See https://valkey.io/commands/fcall/ for more details.
+     *
+     * since Valkey version 7.0.0.
+     *
+     * @param func - The function name.
+     * @param args - A list of `function` arguments and it should not represent names of keys.
+     * @param route - The command will be routed to a random node, unless `route` is provided, in which
+     *     case the client will route the command to the nodes defined by `route`.
+     * @returns The invoked function's return value.
+     *
+     * @example
+     * ```typescript
+     * const response = await client.fcallReadonlyWithRoute("Deep_Thought", ["Answer", "to", "the", "Ultimate",
+     *            "Question", "of", "Life,", "the", "Universe,", "and", "Everything"], "randomNode");
+     * console.log(response); // Output: 42 # The return value on the function that was execute.
+     * ```
+     */
+    public fcallReadonlyWithRoute(
+        func: string,
+        args: string[],
+        route?: Routes,
+    ): Promise<ReturnType> {
+        return this.createWritePromise(
+            createFCallReadOnly(func, [], args),
+            toProtobufRoute(route),
+        );
+    }
+
     /**
      * Deletes a library and all its functions.
      *

node/src/Transaction.ts

@@ -5,6 +5,7 @@
 import {
     AggregationType,
     ExpireOptions,
+    GeoUnit,
     InfoOptions,
     InsertPosition,
     KeyWeight,
@@ -37,6 +38,8 @@ import {
     createExists,
     createExpire,
     createExpireAt,
+    createFCall,
+    createFCallReadOnly,
     createFlushAll,
     createFlushDB,
     createFunctionDelete,
@@ -142,7 +145,6 @@ import {
     createZRevRank,
     createZRevRankWithScore,
     createZScore,
-    GeoUnit,
 } from "./Commands";
 import { command_request } from "./ProtobufMessage";
 import { BitOffsetOptions } from "./commands/BitOffsetOptions";
@@ -1854,6 +1856,42 @@ export class BaseTransaction<T extends BaseTransaction<T>> {
         return this.addAndReturn(createLolwut(options));
     }
 
+    /**
+     * Invokes a previously loaded function.
+     *
+     * See https://valkey.io/commands/fcall/ for more details.
+     *
+     * since Valkey version 7.0.0.
+     *
+     * @param func - The function name.
+     * @param keys - A list of `keys` accessed by the function. To ensure the correct execution of functions,
+     *     all names of keys that a function accesses must be explicitly provided as `keys`.
+     * @param args - A list of `function` arguments and it should not represent names of keys.
+     *
+     * Command Response - The invoked function's return value.
+     */
+    public fcall(func: string, keys: string[], args: string[]): T {
+        return this.addAndReturn(createFCall(func, keys, args));
+    }
+
+    /**
+     * Invokes a previously loaded read-only function.
+     *
+     * See https://valkey.io/commands/fcall/ for more details.
+     *
+     * since Valkey version 7.0.0.
+     *
+     * @param func - The function name.
+     * @param keys - A list of `keys` accessed by the function. To ensure the correct execution of functions,
+     *     all names of keys that a function accesses must be explicitly provided as `keys`.
+     * @param args - A list of `function` arguments and it should not represent names of keys.
+     *
+     * Command Response - The invoked function's return value.
+     */
+    public fcallReadonly(func: string, keys: string[], args: string[]): T {
+        return this.addAndReturn(createFCallReadOnly(func, keys, args));
+    }
+
     /**
      * Deletes a library and all its functions.
      *

node/tests/RedisClient.test.ts

@@ -397,22 +397,10 @@ describe("GlideClient", () => {
                 checkSimple(await client.functionLoad(code)).toEqual(libName);
 
                 checkSimple(
-                    await client.customCommand([
-                        "FCALL",
-                        funcName,
-                        "0",
-                        "one",
-                        "two",
-                    ]),
+                    await client.fcall(funcName, [], ["one", "two"]),
                 ).toEqual("one");
                 checkSimple(
-                    await client.customCommand([
-                        "FCALL_RO",
-                        funcName,
-                        "0",
-                        "one",
-                        "two",
-                    ]),
+                    await client.fcallReadonly(funcName, [], ["one", "two"]),
                 ).toEqual("one");
 
                 // TODO verify with FUNCTION LIST
@@ -441,23 +429,11 @@ describe("GlideClient", () => {
                     libName,
                 );
 
-                expect(
-                    await client.customCommand([
-                        "FCALL",
-                        func2Name,
-                        "0",
-                        "one",
-                        "two",
-                    ]),
+                checkSimple(
+                    await client.fcall(func2Name, [], ["one", "two"]),
                 ).toEqual(2);
-                expect(
-                    await client.customCommand([
-                        "FCALL_RO",
-                        func2Name,
-                        "0",
-                        "one",
-                        "two",
-                    ]),
+                checkSimple(
+                    await client.fcallReadonly(func2Name, [], ["one", "two"]),
                 ).toEqual(2);
             } finally {
                 expect(await client.functionFlush()).toEqual("OK");