feat: allow overriding index-level generics

src/commands/client/upsert/index.ts

@@ -1,9 +1,11 @@
 import { Command } from "@commands/command";
 
+type NoInfer<T> = T extends infer U ? U : never
+
 type UpsertCommandPayload<TMetadata> = {
   id: number | string;
   vector: number[];
-  metadata?: TMetadata;
+  metadata?: NoInfer<TMetadata>;
 };
 
 export class UpsertCommand<TMetadata> extends Command<string> {

src/vector.ts

@@ -9,14 +9,6 @@ import {
 import { Requester } from "@http";
 import { InfoCommand } from "./commands";
 
-type ValidateShape<T, Base> = T extends Base
-  ? Exclude<keyof T, keyof Base> extends never
-    ? T
-    : ExtraProperties<Exclude<keyof T, keyof Base>>
-  : never;
-
-type ExtraProperties<Keys extends PropertyKey> = Record<Keys, never>;
-
 export type CommandArgs<TCommand extends new (_args: any) => any> =
   ConstructorParameters<TCommand>[0];
 
@@ -72,7 +64,7 @@ export class Index<TIndexMetadata extends Record<string, unknown> = Record<strin
    *
    * @returns A promise that resolves with an array of query result objects when the request to query the index is completed.
    */
-  query = <TMetadata extends TIndexMetadata = TIndexMetadata>(
+  query = <TMetadata extends Record<string, unknown> = TIndexMetadata>(
     args: CommandArgs<typeof QueryCommand>
   ) => new QueryCommand<TMetadata>(args).exec(this.client);
 
@@ -98,9 +90,9 @@ export class Index<TIndexMetadata extends Record<string, unknown> = Record<strin
    *
    * @returns {string} A promise that resolves with the result of the upsert operation after the command is executed.
    */
-  upsert = <TMetadata extends TIndexMetadata = TIndexMetadata>(
-    args: CommandArgs<typeof UpsertCommand<ValidateShape<TMetadata, TIndexMetadata>>>
-  ) => new UpsertCommand<ValidateShape<TMetadata, TIndexMetadata>>(args).exec(this.client);
+  upsert = <TMetadata extends Record<string, unknown> = TIndexMetadata>(
+    args: CommandArgs<typeof UpsertCommand<TMetadata>>
+  ) => new UpsertCommand<TMetadata>(args).exec(this.client);
 
   /**
    * It's used for retrieving specific items from the index, optionally including
@@ -122,7 +114,7 @@ export class Index<TIndexMetadata extends Record<string, unknown> = Record<strin
    *
    * @returns {Promise<FetchReturnResponse<TMetadata>[]>} A promise that resolves with an array of fetched items or null if not found, after the command is executed.
    */
-  fetch = <TMetadata extends TIndexMetadata = TIndexMetadata>(
+  fetch = <TMetadata extends Record<string, unknown> = TIndexMetadata>(
     ...args: CommandArgs<typeof FetchCommand>
   ) => new FetchCommand<TMetadata>(args).exec(this.client);
 
@@ -162,7 +154,7 @@ export class Index<TIndexMetadata extends Record<string, unknown> = Record<strin
    *
    * @returns {Promise<RangeReturnResponse<TMetadata>>} A promise that resolves with the response containing the next cursor and an array of vectors, after the command is executed.
    */
-  range = <TMetadata extends TIndexMetadata = TIndexMetadata>(
+  range = <TMetadata extends Record<string, unknown> = TIndexMetadata>(
     args: CommandArgs<typeof RangeCommand>
   ) => new RangeCommand<TMetadata>(args).exec(this.client);