graphql/validation/rules/SingleFieldSubscriptionsRule.mjs.map

A Query Language and Runtime which can target any service.

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node.name.value : null;\n          const variableValues: VariableValues = Object.create(null);\n          const document = context.getDocument();\n          const fragments: ObjMap<FragmentDetails> = Object.create(null);\n          for (const definition of document.definitions) {\n            if (definition.kind === Kind.FRAGMENT_DEFINITION) {\n              fragments[definition.name.value] = { definition };\n            }\n          }\n          const { groupedFieldSet, forbiddenDirectiveInstances } =\n            collectFields(\n              schema,\n              fragments,\n              variableValues,\n              subscriptionType,\n              node.selectionSet,\n              context.hideSuggestions,\n              true,\n            );\n          if (forbiddenDirectiveInstances.length > 0) {\n            context.reportError(\n              new GraphQLError(\n                operationName != null\n                  ? `Subscription \"${operationName}\" must not use \\`@skip\\` or \\`@include\\` directives in the top level selection.`\n                  : 'Anonymous Subscription must not use `@skip` or `@include` directives in the top level selection.',\n                { nodes: forbiddenDirectiveInstances },\n              ),\n            );\n            return;\n          }\n          if (groupedFieldSet.size > 1) {\n            const fieldDetailsLists = [...groupedFieldSet.values()];\n            const extraFieldDetailsLists = fieldDetailsLists.slice(1);\n            const extraFieldSelections = extraFieldDetailsLists.flatMap(\n              (fieldDetailsList) => toNodes(fieldDetailsList),\n            );\n            context.reportError(\n              new GraphQLError(\n                operationName != null\n                  ? `Subscription \"${operationName}\" must select only one top level field.`\n                  : 'Anonymous Subscription must select only one top level field.',\n                { nodes: extraFieldSelections },\n              ),\n            );\n          }\n          for (const fieldDetailsList of groupedFieldSet.values()) {\n            const fieldName = toNodes(fieldDetailsList)[0].name.value;\n            if (fieldName.startsWith('__')) {\n              context.reportError(\n                new GraphQLError(\n                  operationName != null\n                    ? `Subscription \"${operationName}\" must not select an introspection top level field.`\n                    : 'Anonymous Subscription must not select an introspection top level field.',\n                  { nodes: toNodes(fieldDetailsList) },\n                ),\n              );\n            }\n          }\n        }\n      }\n    },\n  };\n}\n"]}