diff --git a/node_modules/apollo-graphql/lib/schema/buildSchemaFromSDL.js b/node_modules/apollo-graphql/lib/schema/buildSchemaFromSDL.js
index 874406b..af698b0 100644
--- a/node_modules/apollo-graphql/lib/schema/buildSchemaFromSDL.js
+++ b/node_modules/apollo-graphql/lib/schema/buildSchemaFromSDL.js
@@ -7,187 +7,210 @@ const GraphQLSchemaValidationError_1 = require("./GraphQLSchemaValidationError")
 const specifiedRules_1 = require("graphql/validation/specifiedRules");
 const apollo_env_1 = require("apollo-env");
 const skippedSDLRules = [
-    "PossibleTypeExtensions",
-    "KnownTypeNames",
-    "UniqueDirectivesPerLocation"
+  "PossibleTypeExtensions",
+  "KnownTypeNames",
+  "UniqueDirectivesPerLocation"
 ];
-const sdlRules = specifiedRules_1.specifiedSDLRules.filter(rule => !skippedSDLRules.includes(rule.name));
+const sdlRules = specifiedRules_1.specifiedSDLRules.filter(
+  rule => !skippedSDLRules.includes(rule.name)
+);
 function modulesFromSDL(modulesOrSDL) {
-    if (Array.isArray(modulesOrSDL)) {
-        return modulesOrSDL.map(moduleOrSDL => {
-            if (graphql_2.isNode(moduleOrSDL) && graphql_2.isDocumentNode(moduleOrSDL)) {
-                return { typeDefs: moduleOrSDL };
-            }
-            else {
-                return moduleOrSDL;
-            }
-        });
-    }
-    else {
-        return [{ typeDefs: modulesOrSDL }];
-    }
+  if (Array.isArray(modulesOrSDL)) {
+    return modulesOrSDL.map(moduleOrSDL => {
+      if (
+        graphql_2.isNode(moduleOrSDL) &&
+        graphql_2.isDocumentNode(moduleOrSDL)
+      ) {
+        return { typeDefs: moduleOrSDL };
+      } else {
+        return moduleOrSDL;
+      }
+    });
+  } else {
+    return [{ typeDefs: modulesOrSDL }];
+  }
 }
 exports.modulesFromSDL = modulesFromSDL;
 function buildSchemaFromSDL(modulesOrSDL, schemaToExtend) {
-    const modules = modulesFromSDL(modulesOrSDL);
-    const documentAST = graphql_1.concatAST(modules.map(module => module.typeDefs));
-    const errors = validate_1.validateSDL(documentAST, schemaToExtend, sdlRules);
-    if (errors.length > 0) {
-        throw new GraphQLSchemaValidationError_1.GraphQLSchemaValidationError(errors);
+  const modules = modulesFromSDL(modulesOrSDL);
+  const documentAST = graphql_1.concatAST(
+    modules.map(module => module.typeDefs)
+  );
+  const errors = validate_1.validateSDL(documentAST, schemaToExtend, sdlRules);
+  if (errors.length > 0) {
+    throw new GraphQLSchemaValidationError_1.GraphQLSchemaValidationError(
+      errors
+    );
+  }
+  const definitionsMap = Object.create(null);
+  const extensionsMap = Object.create(null);
+  const directiveDefinitions = [];
+  const schemaDefinitions = [];
+  const schemaExtensions = [];
+  for (const definition of documentAST.definitions) {
+    if (graphql_1.isTypeDefinitionNode(definition)) {
+      const typeName = definition.name.value;
+      if (definitionsMap[typeName]) {
+        definitionsMap[typeName].push(definition);
+      } else {
+        definitionsMap[typeName] = [definition];
+      }
+    } else if (graphql_1.isTypeExtensionNode(definition)) {
+      const typeName = definition.name.value;
+      if (extensionsMap[typeName]) {
+        extensionsMap[typeName].push(definition);
+      } else {
+        extensionsMap[typeName] = [definition];
+      }
+    } else if (definition.kind === graphql_1.Kind.DIRECTIVE_DEFINITION) {
+      directiveDefinitions.push(definition);
+    } else if (definition.kind === graphql_1.Kind.SCHEMA_DEFINITION) {
+      schemaDefinitions.push(definition);
+    } else if (definition.kind === graphql_1.Kind.SCHEMA_EXTENSION) {
+      schemaExtensions.push(definition);
     }
-    const definitionsMap = Object.create(null);
-    const extensionsMap = Object.create(null);
-    const directiveDefinitions = [];
-    const schemaDefinitions = [];
-    const schemaExtensions = [];
-    for (const definition of documentAST.definitions) {
-        if (graphql_1.isTypeDefinitionNode(definition)) {
-            const typeName = definition.name.value;
-            if (definitionsMap[typeName]) {
-                definitionsMap[typeName].push(definition);
-            }
-            else {
-                definitionsMap[typeName] = [definition];
-            }
-        }
-        else if (graphql_1.isTypeExtensionNode(definition)) {
-            const typeName = definition.name.value;
-            if (extensionsMap[typeName]) {
-                extensionsMap[typeName].push(definition);
-            }
-            else {
-                extensionsMap[typeName] = [definition];
-            }
-        }
-        else if (definition.kind === graphql_1.Kind.DIRECTIVE_DEFINITION) {
-            directiveDefinitions.push(definition);
-        }
-        else if (definition.kind === graphql_1.Kind.SCHEMA_DEFINITION) {
-            schemaDefinitions.push(definition);
-        }
-        else if (definition.kind === graphql_1.Kind.SCHEMA_EXTENSION) {
-            schemaExtensions.push(definition);
-        }
+  }
+  let schema = schemaToExtend
+    ? schemaToExtend
+    : new graphql_1.GraphQLSchema({
+        query: undefined
+      });
+  const missingTypeDefinitions = [];
+  for (const [extendedTypeName, extensions] of Object.entries(extensionsMap)) {
+    if (!definitionsMap[extendedTypeName]) {
+      const extension = extensions[0];
+      const kind = extension.kind;
+      const definition = {
+        kind: extKindToDefKind[kind],
+        name: extension.name
+      };
+      missingTypeDefinitions.push(definition);
     }
-    let schema = schemaToExtend
-        ? schemaToExtend
-        : new graphql_1.GraphQLSchema({
-            query: undefined
-        });
-    const missingTypeDefinitions = [];
-    for (const [extendedTypeName, extensions] of Object.entries(extensionsMap)) {
-        if (!definitionsMap[extendedTypeName]) {
-            const extension = extensions[0];
-            const kind = extension.kind;
-            const definition = {
-                kind: extKindToDefKind[kind],
-                name: extension.name
-            };
-            missingTypeDefinitions.push(definition);
-        }
+  }
+  schema = graphql_1.extendSchema(
+    schema,
+    {
+      kind: graphql_1.Kind.DOCUMENT,
+      definitions: [
+        ...Object.values(definitionsMap).flat(),
+        ...missingTypeDefinitions,
+        ...directiveDefinitions
+      ]
+    },
+    {
+      assumeValidSDL: true
     }
-    schema = graphql_1.extendSchema(schema, {
-        kind: graphql_1.Kind.DOCUMENT,
-        definitions: [
-            ...Object.values(definitionsMap).flat(),
-            ...missingTypeDefinitions,
-            ...directiveDefinitions
-        ]
-    }, {
-        assumeValidSDL: true
-    });
-    schema = graphql_1.extendSchema(schema, {
-        kind: graphql_1.Kind.DOCUMENT,
-        definitions: Object.values(extensionsMap).flat()
-    }, {
-        assumeValidSDL: true
-    });
-    let operationTypeMap;
-    if (schemaDefinitions.length > 0 || schemaExtensions.length > 0) {
-        operationTypeMap = {};
-        const operationTypes = [...schemaDefinitions, ...schemaExtensions]
-            .map(node => node.operationTypes)
-            .filter(apollo_env_1.isNotNullOrUndefined)
-            .flat();
-        for (const { operation, type } of operationTypes) {
-            operationTypeMap[operation] = type.name.value;
-        }
+  );
+  schema = graphql_1.extendSchema(
+    schema,
+    {
+      kind: graphql_1.Kind.DOCUMENT,
+      definitions: Object.values(extensionsMap).flat()
+    },
+    {
+      assumeValidSDL: true
     }
-    else {
-        operationTypeMap = {
-            query: "Query",
-            mutation: "Mutation",
-            subscription: "Subscription"
-        };
+  );
+  let operationTypeMap;
+  if (schemaDefinitions.length > 0 || schemaExtensions.length > 0) {
+    operationTypeMap = {};
+    const operationTypes = [...schemaDefinitions, ...schemaExtensions]
+      .map(node => node.operationTypes)
+      .filter(apollo_env_1.isNotNullOrUndefined)
+      .flat();
+    for (const { operation, type } of operationTypes) {
+      operationTypeMap[operation] = type.name.value;
     }
-    schema = new graphql_1.GraphQLSchema(Object.assign({}, schema.toConfig(), apollo_env_1.mapValues(operationTypeMap, typeName => typeName
-        ? schema.getType(typeName)
-        : undefined)));
-    for (const module of modules) {
-        if (!module.resolvers)
-            continue;
-        addResolversToSchema(schema, module.resolvers);
-    }
-    return schema;
+  } else {
+    operationTypeMap = {
+      query: "Query",
+      mutation: "Mutation",
+      subscription: "Subscription"
+    };
+  }
+  schema = new graphql_1.GraphQLSchema(
+    Object.assign(
+      {},
+      schema.toConfig(),
+      apollo_env_1.mapValues(operationTypeMap, typeName =>
+        typeName ? schema.getType(typeName) : undefined
+      )
+    )
+  );
+  for (const module of modules) {
+    if (!module.resolvers) continue;
+    addResolversToSchema(schema, module.resolvers);
+  }
+  return schema;
 }
 exports.buildSchemaFromSDL = buildSchemaFromSDL;
 const extKindToDefKind = {
-    [graphql_1.Kind.SCALAR_TYPE_EXTENSION]: graphql_1.Kind.SCALAR_TYPE_DEFINITION,
-    [graphql_1.Kind.OBJECT_TYPE_EXTENSION]: graphql_1.Kind.OBJECT_TYPE_DEFINITION,
-    [graphql_1.Kind.INTERFACE_TYPE_EXTENSION]: graphql_1.Kind.INTERFACE_TYPE_DEFINITION,
-    [graphql_1.Kind.UNION_TYPE_EXTENSION]: graphql_1.Kind.UNION_TYPE_DEFINITION,
-    [graphql_1.Kind.ENUM_TYPE_EXTENSION]: graphql_1.Kind.ENUM_TYPE_DEFINITION,
-    [graphql_1.Kind.INPUT_OBJECT_TYPE_EXTENSION]: graphql_1.Kind.INPUT_OBJECT_TYPE_DEFINITION
+  [graphql_1.Kind.SCALAR_TYPE_EXTENSION]: graphql_1.Kind.SCALAR_TYPE_DEFINITION,
+  [graphql_1.Kind.OBJECT_TYPE_EXTENSION]: graphql_1.Kind.OBJECT_TYPE_DEFINITION,
+  [graphql_1.Kind.INTERFACE_TYPE_EXTENSION]:
+    graphql_1.Kind.INTERFACE_TYPE_DEFINITION,
+  [graphql_1.Kind.UNION_TYPE_EXTENSION]: graphql_1.Kind.UNION_TYPE_DEFINITION,
+  [graphql_1.Kind.ENUM_TYPE_EXTENSION]: graphql_1.Kind.ENUM_TYPE_DEFINITION,
+  [graphql_1.Kind.INPUT_OBJECT_TYPE_EXTENSION]:
+    graphql_1.Kind.INPUT_OBJECT_TYPE_DEFINITION
 };
 function addResolversToSchema(schema, resolvers) {
-    for (const [typeName, fieldConfigs] of Object.entries(resolvers)) {
-        const type = schema.getType(typeName);
-        if (graphql_1.isAbstractType(type)) {
-            for (const [fieldName, fieldConfig] of Object.entries(fieldConfigs)) {
-                if (fieldName.startsWith("__")) {
-                    type[fieldName.substring(2)] = fieldConfig;
-                }
-            }
-        }
-        if (graphql_1.isScalarType(type)) {
-            for (const fn in fieldConfigs) {
-                type[fn] = fieldConfigs[fn];
-            }
+  for (const [typeName, fieldConfigs] of Object.entries(resolvers)) {
+    const type = schema.getType(typeName);
+    if (graphql_1.isAbstractType(type)) {
+      for (const [fieldName, fieldConfig] of Object.entries(fieldConfigs)) {
+        if (fieldName.startsWith("__")) {
+          type[fieldName.substring(2)] = fieldConfig;
         }
-        if (graphql_1.isEnumType(type)) {
-            const values = type.getValues();
-            const newValues = {};
-            values.forEach(value => {
-                const newValue = fieldConfigs[value.name] || value.name;
-                newValues[value.name] = {
-                    value: newValue,
-                    deprecationReason: value.deprecationReason,
-                    description: value.description,
-                    astNode: value.astNode,
-                    name: value.name
-                };
-            });
-            Object.assign(type, new graphql_1.GraphQLEnumType(Object.assign({}, type.toConfig(), { values: newValues })));
+      }
+    }
+    if (graphql_1.isScalarType(type)) {
+      for (const fn in fieldConfigs) {
+        type[fn] = fieldConfigs[fn];
+      }
+    }
+    if (graphql_1.isEnumType(type)) {
+      const values = type.getValues();
+      const newValues = {};
+      values.forEach(value => {
+        const newValue = fieldConfigs[value.name] || value.name;
+        newValues[value.name] = {
+          value: newValue,
+          deprecationReason: value.deprecationReason,
+          description: value.description,
+          astNode: value.astNode,
+          name: value.name
+        };
+      });
+      Object.assign(
+        type,
+        new graphql_1.GraphQLEnumType(
+          Object.assign({}, type.toConfig(), { values: newValues })
+        )
+      );
+    }
+    if (!graphql_1.isObjectType(type)) continue;
+    const fieldMap = type.getFields();
+    for (const [fieldName, fieldConfig] of Object.entries(fieldConfigs)) {
+      if (fieldName.startsWith("__")) {
+        type[fieldName.substring(2)] = fieldConfig;
+        continue;
+      }
+      const field = fieldMap[fieldName];
+      if (!field) continue;
+      if (typeof fieldConfig === "function") {
+        field.resolve = fieldConfig;
+      } else {
+        // field.resolve = fieldConfig.resolve;
+        if (fieldConfig.resolve) {
+          field.resolve = fieldConfig.resolve;
         }
-        if (!graphql_1.isObjectType(type))
-            continue;
-        const fieldMap = type.getFields();
-        for (const [fieldName, fieldConfig] of Object.entries(fieldConfigs)) {
-            if (fieldName.startsWith("__")) {
-                type[fieldName.substring(2)] = fieldConfig;
-                continue;
-            }
-            const field = fieldMap[fieldName];
-            if (!field)
-                continue;
-            if (typeof fieldConfig === "function") {
-                field.resolve = fieldConfig;
-            }
-            else {
-                field.resolve = fieldConfig.resolve;
-            }
+        if (fieldConfig.subscribe) {
+          field.subscribe = fieldConfig.subscribe;
         }
+      }
     }
+  }
 }
 exports.addResolversToSchema = addResolversToSchema;
 //# sourceMappingURL=buildSchemaFromSDL.js.map
