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diff --git a/source/common.ts b/source/common.ts
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+
+
+
+/*** IMPORT ------------------------------------------- ***/
+
+import { graphql, type ExecutionResult } from "graphql";
+
+/*** UTILITY ------------------------------------------ ***/
+
+import type {
+  GQLOptions,
+  GQLRequest,
+  GraphQLParams
+} from "./utility/types.ts";
+
+/*** EXPORT ------------------------------------------- ***/
+
+/**
+ * Executes a GraphQL query or mutation against the provided schema.
+ *
+ * Resolves `options.context` (if given) with the incoming request, then
+ * forwards `query`/`mutation`, `operationName`, and `variables` to `graphql()`.
+ *
+ * @typeParam Req - Request shape; defaults to {@link GQLRequest}.
+ * @typeParam Ctx - Context value passed to resolvers; defaults to `{ request }`.
+ * @param params - Parsed GraphQL params (query or mutation, with optional vars).
+ * @param options - Executable schema plus optional context builder.
+ * @param request - The inbound HTTP request (used to build context).
+ * @returns The raw {@link ExecutionResult} from `graphql-js`.
+ */
+export async function runHttpQuery<
+  Req extends GQLRequest = GQLRequest,
+  Ctx = { request: Req }>(
+    params: GraphQLParams,
+    options: GQLOptions<Ctx, Req>,
+    request: Req): Promise<ExecutionResult> {
+  const contextValue = options.context ?
+    await options.context(request) :
+    { request } as Ctx;
+  const source = params.query! || params.mutation!;
+
+  return await graphql({
+    source,
+    ...options,
+    contextValue,
+    operationName: params.operationName,
+    variableValues: params.variables
+  });
+}