Initialisation

Added the packages and files for the backend server

node_modules/@apollo/server/dist/esm/httpBatching.js

@@ -0,0 +1,55 @@
+import { newHTTPGraphQLHead, runHttpQuery } from './runHttpQuery.js';
+import { BadRequestError } from './internalErrorClasses.js';
+async function runBatchedHttpQuery({ server, batchRequest, body, contextValue, schemaDerivedData, internals, }) {
+    if (body.length === 0) {
+        throw new BadRequestError('No operations found in request.');
+    }
+    const sharedResponseHTTPGraphQLHead = newHTTPGraphQLHead();
+    const responseBodies = await Promise.all(body.map(async (bodyPiece) => {
+        const singleRequest = {
+            ...batchRequest,
+            body: bodyPiece,
+        };
+        const response = await runHttpQuery({
+            server,
+            httpRequest: singleRequest,
+            contextValue,
+            schemaDerivedData,
+            internals,
+            sharedResponseHTTPGraphQLHead,
+        });
+        if (response.body.kind === 'chunked') {
+            throw Error('Incremental delivery is not implemented for batch requests');
+        }
+        return response.body.string;
+    }));
+    return {
+        ...sharedResponseHTTPGraphQLHead,
+        body: { kind: 'complete', string: `[${responseBodies.join(',')}]` },
+    };
+}
+export async function runPotentiallyBatchedHttpQuery(server, httpGraphQLRequest, contextValue, schemaDerivedData, internals) {
+    if (!(httpGraphQLRequest.method === 'POST' &&
+        Array.isArray(httpGraphQLRequest.body))) {
+        return await runHttpQuery({
+            server,
+            httpRequest: httpGraphQLRequest,
+            contextValue,
+            schemaDerivedData,
+            internals,
+            sharedResponseHTTPGraphQLHead: null,
+        });
+    }
+    if (internals.allowBatchedHttpRequests) {
+        return await runBatchedHttpQuery({
+            server,
+            batchRequest: httpGraphQLRequest,
+            body: httpGraphQLRequest.body,
+            contextValue,
+            schemaDerivedData,
+            internals,
+        });
+    }
+    throw new BadRequestError('Operation batching disabled.');
+}
+//# sourceMappingURL=httpBatching.js.map