Initialisation

Added the packages and files for the backend server

node_modules/graphql/graphql.js

@@ -0,0 +1,96 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true,
+});
+exports.graphql = graphql;
+exports.graphqlSync = graphqlSync;
+
+var _devAssert = require('./jsutils/devAssert.js');
+
+var _isPromise = require('./jsutils/isPromise.js');
+
+var _parser = require('./language/parser.js');
+
+var _validate = require('./type/validate.js');
+
+var _validate2 = require('./validation/validate.js');
+
+var _execute = require('./execution/execute.js');
+
+function graphql(args) {
+  // Always return a Promise for a consistent API.
+  return new Promise((resolve) => resolve(graphqlImpl(args)));
+}
+/**
+ * The graphqlSync function also fulfills GraphQL operations by parsing,
+ * validating, and executing a GraphQL document along side a GraphQL schema.
+ * However, it guarantees to complete synchronously (or throw an error) assuming
+ * that all field resolvers are also synchronous.
+ */
+
+function graphqlSync(args) {
+  const result = graphqlImpl(args); // Assert that the execution was synchronous.
+
+  if ((0, _isPromise.isPromise)(result)) {
+    throw new Error('GraphQL execution failed to complete synchronously.');
+  }
+
+  return result;
+}
+
+function graphqlImpl(args) {
+  // Temporary for v15 to v16 migration. Remove in v17
+  arguments.length < 2 ||
+    (0, _devAssert.devAssert)(
+      false,
+      'graphql@16 dropped long-deprecated support for positional arguments, please pass an object instead.',
+    );
+  const {
+    schema,
+    source,
+    rootValue,
+    contextValue,
+    variableValues,
+    operationName,
+    fieldResolver,
+    typeResolver,
+  } = args; // Validate Schema
+
+  const schemaValidationErrors = (0, _validate.validateSchema)(schema);
+
+  if (schemaValidationErrors.length > 0) {
+    return {
+      errors: schemaValidationErrors,
+    };
+  } // Parse
+
+  let document;
+
+  try {
+    document = (0, _parser.parse)(source);
+  } catch (syntaxError) {
+    return {
+      errors: [syntaxError],
+    };
+  } // Validate
+
+  const validationErrors = (0, _validate2.validate)(schema, document);
+
+  if (validationErrors.length > 0) {
+    return {
+      errors: validationErrors,
+    };
+  } // Execute
+
+  return (0, _execute.execute)({
+    schema,
+    document,
+    rootValue,
+    contextValue,
+    variableValues,
+    operationName,
+    fieldResolver,
+    typeResolver,
+  });
+}