Initialisation

Added the packages and files for the backend server

node_modules/graphql/validation/rules/KnownArgumentNamesRule.mjs

@@ -0,0 +1,102 @@
+import { didYouMean } from '../../jsutils/didYouMean.mjs';
+import { suggestionList } from '../../jsutils/suggestionList.mjs';
+import { GraphQLError } from '../../error/GraphQLError.mjs';
+import { Kind } from '../../language/kinds.mjs';
+import { specifiedDirectives } from '../../type/directives.mjs';
+
+/**
+ * Known argument names
+ *
+ * A GraphQL field is only valid if all supplied arguments are defined by
+ * that field.
+ *
+ * See https://spec.graphql.org/draft/#sec-Argument-Names
+ * See https://spec.graphql.org/draft/#sec-Directives-Are-In-Valid-Locations
+ */
+export function KnownArgumentNamesRule(context) {
+  return {
+    // eslint-disable-next-line new-cap
+    ...KnownArgumentNamesOnDirectivesRule(context),
+
+    Argument(argNode) {
+      const argDef = context.getArgument();
+      const fieldDef = context.getFieldDef();
+      const parentType = context.getParentType();
+
+      if (!argDef && fieldDef && parentType) {
+        const argName = argNode.name.value;
+        const knownArgsNames = fieldDef.args.map((arg) => arg.name);
+        const suggestions = suggestionList(argName, knownArgsNames);
+        context.reportError(
+          new GraphQLError(
+            `Unknown argument "${argName}" on field "${parentType.name}.${fieldDef.name}".` +
+              didYouMean(suggestions),
+            {
+              nodes: argNode,
+            },
+          ),
+        );
+      }
+    },
+  };
+}
+/**
+ * @internal
+ */
+
+export function KnownArgumentNamesOnDirectivesRule(context) {
+  const directiveArgs = Object.create(null);
+  const schema = context.getSchema();
+  const definedDirectives = schema
+    ? schema.getDirectives()
+    : specifiedDirectives;
+
+  for (const directive of definedDirectives) {
+    directiveArgs[directive.name] = directive.args.map((arg) => arg.name);
+  }
+
+  const astDefinitions = context.getDocument().definitions;
+
+  for (const def of astDefinitions) {
+    if (def.kind === Kind.DIRECTIVE_DEFINITION) {
+      var _def$arguments;
+
+      // FIXME: https://github.com/graphql/graphql-js/issues/2203
+
+      /* c8 ignore next */
+      const argsNodes =
+        (_def$arguments = def.arguments) !== null && _def$arguments !== void 0
+          ? _def$arguments
+          : [];
+      directiveArgs[def.name.value] = argsNodes.map((arg) => arg.name.value);
+    }
+  }
+
+  return {
+    Directive(directiveNode) {
+      const directiveName = directiveNode.name.value;
+      const knownArgs = directiveArgs[directiveName];
+
+      if (directiveNode.arguments && knownArgs) {
+        for (const argNode of directiveNode.arguments) {
+          const argName = argNode.name.value;
+
+          if (!knownArgs.includes(argName)) {
+            const suggestions = suggestionList(argName, knownArgs);
+            context.reportError(
+              new GraphQLError(
+                `Unknown argument "${argName}" on directive "@${directiveName}".` +
+                  didYouMean(suggestions),
+                {
+                  nodes: argNode,
+                },
+              ),
+            );
+          }
+        }
+      }
+
+      return false;
+    },
+  };
+}