From d578858571201e08ea5ab210283ddb96d7a9ec59 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Gandecki?=
 <4002543+lgandecki@users.noreply.github.com>
Date: Mon, 25 May 2020 16:14:33 +0200
Subject: [PATCH] feat: improve error handling.

If things break for you please update your apollo/federation and gateway packages to 0.16.0
---
 helpers/executeQueryPlan.js     |  295 +++++++
 index.js                        |   44 +-
 package-lock.json               | 1319 ++++++++++++++++++++++++++-----
 package.json                    |    6 +-
 tests/differentContexts.test.js |    1 -
 tests/multipleServices.test.js  |    5 +-
 6 files changed, 1447 insertions(+), 223 deletions(-)
 create mode 100644 helpers/executeQueryPlan.js

diff --git a/helpers/executeQueryPlan.js b/helpers/executeQueryPlan.js
new file mode 100644
index 0000000..2dedd00
--- /dev/null
+++ b/helpers/executeQueryPlan.js
@@ -0,0 +1,295 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const apollo_server_env_1 = require("apollo-server-env");
+const graphql_1 = require("graphql");
+const apollo_engine_reporting_protobuf_1 = require("apollo-engine-reporting-protobuf");
+const federation_1 = require("@apollo/federation");
+const deepMerge_1 = require("@apollo/gateway/dist/utilities/deepMerge");
+const graphql_2 = require("@apollo/gateway/dist/utilities/graphql");
+async function executeQueryPlan(queryPlan, serviceMap, requestContext, operationContext) {
+  const errors = [];
+  const context = {
+    queryPlan,
+    operationContext,
+    serviceMap,
+    requestContext,
+    errors,
+  };
+  let data = Object.create(null);
+  const captureTraces = !!(requestContext.metrics && requestContext.metrics.captureTraces);
+  if (queryPlan.node) {
+    const traceNode = await executeNode(context, queryPlan.node, data, [], captureTraces);
+    if (captureTraces) {
+      requestContext.metrics.queryPlanTrace = traceNode;
+    }
+  }
+  try {
+    ({ data } = await graphql_1.execute({
+      schema: operationContext.schema,
+      document: {
+        kind: graphql_1.Kind.DOCUMENT,
+        definitions: [
+          operationContext.operation,
+          ...Object.values(operationContext.fragments),
+        ],
+      },
+      rootValue: data,
+      variableValues: requestContext.request.variables,
+      fieldResolver: exports.defaultFieldResolverWithAliasSupport,
+    }));
+  }
+  catch (error) {
+    throw new Error("instead of catching...")
+    return { errors: [error] };
+  }
+  return errors.length === 0 ? { data } : { errors, data };
+}
+exports.executeQueryPlan = executeQueryPlan;
+async function executeNode(context, node, results, path, captureTraces) {
+  if (!results) {
+    return new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode();
+  }
+  switch (node.kind) {
+    case 'Sequence': {
+      const traceNode = new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode.SequenceNode();
+      for (const childNode of node.nodes) {
+        const childTraceNode = await executeNode(context, childNode, results, path, captureTraces);
+        traceNode.nodes.push(childTraceNode);
+      }
+      return new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode({ sequence: traceNode });
+    }
+    case 'Parallel': {
+      const childTraceNodes = await Promise.all(node.nodes.map(async (childNode) => executeNode(context, childNode, results, path, captureTraces)));
+      return new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode({
+        parallel: new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode.ParallelNode({
+          nodes: childTraceNodes,
+        }),
+      });
+    }
+    case 'Flatten': {
+      return new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode({
+        flatten: new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode.FlattenNode({
+          responsePath: node.path.map(id => new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode.ResponsePathElement(typeof id === 'string' ? { fieldName: id } : { index: id })),
+          node: await executeNode(context, node.node, flattenResultsAtPath(results, node.path), [...path, ...node.path], captureTraces),
+        }),
+      });
+    }
+    case 'Fetch': {
+      const traceNode = new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode.FetchNode({
+        serviceName: node.serviceName,
+      });
+      try {
+        await executeFetch(context, node, results, path, captureTraces ? traceNode : null);
+      }
+      catch (error) {
+        context.errors.push(error);
+      }
+      return new apollo_engine_reporting_protobuf_1.Trace.QueryPlanNode({ fetch: traceNode });
+    }
+  }
+}
+async function executeFetch(context, fetch, results, _path, traceNode) {
+  const logger = context.requestContext.logger || console;
+  const service = context.serviceMap[fetch.serviceName];
+  if (!service) {
+    throw new Error(`Couldn't find service with name "${fetch.serviceName}"`);
+  }
+  const entities = Array.isArray(results) ? results : [results];
+  if (entities.length < 1)
+    return;
+  let variables = Object.create(null);
+  if (fetch.variableUsages) {
+    for (const variableName of Object.keys(fetch.variableUsages)) {
+      const providedVariables = context.requestContext.request.variables;
+      if (providedVariables &&
+        typeof providedVariables[variableName] !== 'undefined') {
+        variables[variableName] = providedVariables[variableName];
+      }
+    }
+  }
+  if (!fetch.requires) {
+    const dataReceivedFromService = await sendOperation(context, fetch.source, variables);
+    for (const entity of entities) {
+      deepMerge_1.deepMerge(entity, dataReceivedFromService);
+    }
+  }
+  else {
+    const requires = fetch.requires;
+    const representations = [];
+    const representationToEntity = [];
+    entities.forEach((entity, index) => {
+      const representation = executeSelectionSet(entity, requires);
+      if (representation && representation[graphql_1.TypeNameMetaFieldDef.name]) {
+        representations.push(representation);
+        representationToEntity.push(index);
+      }
+    });
+    if ('representations' in variables) {
+      throw new Error(`Variables cannot contain key "representations"`);
+    }
+    const dataReceivedFromService = await sendOperation(context, fetch.source, { ...variables, representations });
+    if (!dataReceivedFromService) {
+      return;
+    }
+    if (!(dataReceivedFromService._entities &&
+      Array.isArray(dataReceivedFromService._entities))) {
+      throw new Error(`Expected "data._entities" in response to be an array`);
+    }
+    const receivedEntities = dataReceivedFromService._entities;
+    if (receivedEntities.length !== representations.length) {
+      throw new Error(`Expected "data._entities" to contain ${representations.length} elements`);
+    }
+    for (let i = 0; i < entities.length; i++) {
+      deepMerge_1.deepMerge(entities[representationToEntity[i]], receivedEntities[i]);
+    }
+  }
+  async function sendOperation(context, source, variables) {
+    var _a, _b;
+    let http;
+    if (traceNode) {
+      http = {
+        headers: new apollo_server_env_1.Headers({ 'apollo-federation-include-trace': 'ftv1' }),
+      };
+      if (context.requestContext.metrics &&
+        context.requestContext.metrics.startHrTime) {
+        traceNode.sentTimeOffset = durationHrTimeToNanos(process.hrtime(context.requestContext.metrics.startHrTime));
+      }
+      traceNode.sentTime = dateToProtoTimestamp(new Date());
+    }
+    const response = await service.process({
+      request: {
+        query: source,
+        variables,
+        http,
+      },
+      context: context.requestContext.context,
+    });
+    if (response.errors) {
+      // response.errors.forEach(e => {
+      //     if (e.stack) {
+      //         console.log("e.stack", e.stack)
+      //     }
+      // })
+      const errors = response.errors.map(error => downstreamServiceError(error.message, fetch.serviceName, source, variables, error.extensions, error.path));
+      context.errors.push(...response.errors);
+    }
+    if (traceNode) {
+      traceNode.receivedTime = dateToProtoTimestamp(new Date());
+      if (response.extensions && response.extensions.ftv1) {
+        const traceBase64 = response.extensions.ftv1;
+        let traceBuffer;
+        let traceParsingFailed = false;
+        try {
+          traceBuffer = Buffer.from(traceBase64, 'base64');
+        }
+        catch (err) {
+          logger.error(`error decoding base64 for federated trace from ${fetch.serviceName}: ${err}`);
+          traceParsingFailed = true;
+        }
+        if (traceBuffer) {
+          try {
+            const trace = apollo_engine_reporting_protobuf_1.Trace.decode(traceBuffer);
+            traceNode.trace = trace;
+          }
+          catch (err) {
+            logger.error(`error decoding protobuf for federated trace from ${fetch.serviceName}: ${err}`);
+            traceParsingFailed = true;
+          }
+        }
+        if (traceNode.trace) {
+          const rootTypeName = federation_1.defaultRootOperationNameLookup[context.operationContext.operation.operation];
+          (_b = (_a = traceNode.trace.root) === null || _a === void 0 ? void 0 : _a.child) === null || _b === void 0 ? void 0 : _b.forEach((child) => {
+            child.parentType = rootTypeName;
+          });
+        }
+        traceNode.traceParsingFailed = traceParsingFailed;
+      }
+    }
+    return response.data;
+  }
+}
+function executeSelectionSet(source, selectionSet) {
+  const result = Object.create(null);
+  for (const selection of selectionSet.selections) {
+    switch (selection.kind) {
+      case graphql_1.Kind.FIELD:
+        const responseName = graphql_2.getResponseName(selection);
+        const selectionSet = selection.selectionSet;
+        if (source === null) {
+          result[responseName] = null;
+          break;
+        }
+        if (typeof source[responseName] === 'undefined') {
+          throw new Error(`Field "${responseName}" was not found in response.`);
+        }
+        if (Array.isArray(source[responseName])) {
+          result[responseName] = source[responseName].map((value) => selectionSet ? executeSelectionSet(value, selectionSet) : value);
+        }
+        else if (selectionSet) {
+          result[responseName] = executeSelectionSet(source[responseName], selectionSet);
+        }
+        else {
+          result[responseName] = source[responseName];
+        }
+        break;
+      case graphql_1.Kind.INLINE_FRAGMENT:
+        if (!selection.typeCondition)
+          continue;
+        const typename = source && source['__typename'];
+        if (!typename)
+          continue;
+        if (typename === selection.typeCondition.name.value) {
+          deepMerge_1.deepMerge(result, executeSelectionSet(source, selection.selectionSet));
+        }
+        break;
+    }
+  }
+  return result;
+}
+function flattenResultsAtPath(value, path) {
+  if (path.length === 0)
+    return value;
+  if (value === undefined || value === null)
+    return value;
+  const [current, ...rest] = path;
+  if (current === '@') {
+    return value.flatMap((element) => flattenResultsAtPath(element, rest));
+  }
+  else {
+    return flattenResultsAtPath(value[current], rest);
+  }
+}
+function downstreamServiceError(message, serviceName, query, variables, extensions, path) {
+  if (!message) {
+    message = `Error while fetching subquery from service "${serviceName}"`;
+  }
+  extensions = {
+    code: 'DOWNSTREAM_SERVICE_ERROR',
+    serviceName,
+    query,
+    variables,
+    ...extensions,
+  };
+  return new graphql_1.GraphQLError(message, undefined, undefined, undefined, path, undefined, extensions);
+}
+exports.defaultFieldResolverWithAliasSupport = function (source, args, contextValue, info) {
+  if (typeof source === 'object' || typeof source === 'function') {
+    const property = source[info.path.key];
+    if (typeof property === 'function') {
+      return source[info.fieldName](args, contextValue, info);
+    }
+    return property;
+  }
+};
+function durationHrTimeToNanos(hrtime) {
+  return hrtime[0] * 1e9 + hrtime[1];
+}
+function dateToProtoTimestamp(date) {
+  const totalMillis = +date;
+  const millis = totalMillis % 1000;
+  return new apollo_engine_reporting_protobuf_1.google.protobuf.Timestamp({
+    seconds: (totalMillis - millis) / 1000,
+    nanos: millis * 1e6,
+  });
+}
+//# sourceMappingURL=executeQueryPlan.js.map
diff --git a/index.js b/index.js
index e3bada8..29cac1f 100644
--- a/index.js
+++ b/index.js
@@ -3,7 +3,6 @@ const {
   LocalGraphQLDataSource,
   buildOperationContext,
   buildQueryPlan,
-  executeQueryPlan
 } = require("@apollo/gateway");
 const { addMockFunctionsToSchema } = require("graphql-tools");
 const { addResolversToSchema } = require("apollo-graphql");
@@ -16,6 +15,7 @@ const clone = require("clone");
 const gql = require("graphql-tag");
 const cloneDeepWith = require("lodash.clonedeepwith");
 const isFunction = require("lodash.isfunction");
+const { executeQueryPlan } = require("./helpers/executeQueryPlan")
 
 const {
   buildContextsPerService
@@ -215,7 +215,7 @@ function validateArguments(
   }
 }
 
-const executeGraphql = ({
+const executeGraphql = async ({
   query,
   mutation,
   variables,
@@ -242,15 +242,37 @@ const executeGraphql = ({
     addServiceInformationToResolvers(services);
   }
 
-  return execute(
-    schema,
-    query,
-    mutation,
-    serviceMap,
-    variables,
-    context,
-    contextsPerService
-  );
+
+  const prepareError = new Error("");
+  const splitLines = prepareError.stack.split("\n").slice(2);
+  let result;
+  try {
+    result = await execute(
+      schema,
+      query,
+      mutation,
+      serviceMap,
+      variables,
+      context,
+      contextsPerService
+    );
+    if (result.errors) {
+      if (result.errors.length === 1) {
+        result.errors[0].message = result.errors[0].message + `, path: ${result.errors[0].path}`
+        throw result.errors[0];
+      } else {
+        throw new Error(result.errors.map((e) => `${e.message}, path: ${e.path}`).join(","));
+      }
+    }
+  } catch (e) {
+    const smallStack = e.stack.split("\n");
+    e.stack = [...smallStack, ...splitLines]
+      .filter((l) => l.indexOf("node_modules") === -1)
+      .join("\n");
+    e.message = e.message.split("\n")[0];
+    throw e;
+  }
+  return result;
 };
 
 function addServiceInformationToResolvers(services) {
diff --git a/package-lock.json b/package-lock.json
index ca92d22..4b8d4ac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,46 +5,218 @@
   "requires": true,
   "dependencies": {
     "@apollo/federation": {
-      "version": "0.6.4",
-      "resolved": "https://registry.npmjs.org/@apollo/federation/-/federation-0.6.4.tgz",
-      "integrity": "sha512-6jRUOajRauhSGg0enPOjW85mQvkKgWAOnknR/Wi3l/nNMKQ+OK4clopXT9Pw2SsS/A8QZk86IHuoZaTg/3pxMg==",
+      "version": "0.16.0",
+      "resolved": "https://registry.npmjs.org/@apollo/federation/-/federation-0.16.0.tgz",
+      "integrity": "sha512-+UA9QQNA4q896OOmyFHhKTf7iOIFvjL+h/I7ozRkA+Ayv1368pXtd3zyeKrXtUKD21a1vtEkEjCUX9aDGR8cqg==",
       "dev": true,
       "requires": {
-        "apollo-env": "^0.5.1",
-        "apollo-graphql": "^0.3.2",
-        "apollo-server-env": "2.4.0"
+        "apollo-graphql": "^0.4.0",
+        "apollo-server-env": "^2.4.4-alpha.0",
+        "core-js": "^3.4.0",
+        "lodash.xorby": "^4.7.0"
+      },
+      "dependencies": {
+        "apollo-server-env": {
+          "version": "2.4.4-alpha.0",
+          "resolved": "https://registry.npmjs.org/apollo-server-env/-/apollo-server-env-2.4.4-alpha.0.tgz",
+          "integrity": "sha512-KoxYIYCZWh3oXDrsh/V43DVgTIo02XGEaLlNuwPMzPxwRA7id1wxcNInqISvd8Os8uoJSGuxkMCCs21UMOpnFw==",
+          "dev": true,
+          "requires": {
+            "node-fetch": "^2.1.2",
+            "util.promisify": "^1.0.0"
+          }
+        }
       }
     },
     "@apollo/gateway": {
-      "version": "0.6.7",
-      "resolved": "https://registry.npmjs.org/@apollo/gateway/-/gateway-0.6.7.tgz",
-      "integrity": "sha512-V2P5WpX/8CRR82iFDNDRFjyFZJujR/pnBZKhV9873kqDCC87jXoIV8hMXlJ0ZMHwbCecDAM2WiIQ1vb4NvBORA==",
+      "version": "0.16.0",
+      "resolved": "https://registry.npmjs.org/@apollo/gateway/-/gateway-0.16.0.tgz",
+      "integrity": "sha512-iI1vzuZzgkkIylr/Rk7XlNyY2ob7V5BNA8Uy3DQE2RDtoMRPyBgwliFQG3+up5fFkUsfz+9qJJoRiIgNJD+RNQ==",
+      "dev": true,
+      "requires": {
+        "@apollo/federation": "^0.16.0",
+        "@types/node-fetch": "2.5.4",
+        "apollo-engine-reporting-protobuf": "^0.5.1-alpha.0",
+        "apollo-env": "^0.6.1",
+        "apollo-graphql": "^0.4.0",
+        "apollo-server-caching": "^0.5.1",
+        "apollo-server-core": "^2.13.1",
+        "apollo-server-env": "^2.4.4-alpha.0",
+        "apollo-server-errors": "^2.4.1",
+        "apollo-server-types": "^0.4.1-alpha.0",
+        "graphql-extensions": "^0.12.1-alpha.0",
+        "loglevel": "^1.6.1",
+        "make-fetch-happen": "^8.0.0",
+        "pretty-format": "^25.0.0"
+      },
+      "dependencies": {
+        "@jest/types": {
+          "version": "25.5.0",
+          "resolved": "https://registry.npmjs.org/@jest/types/-/types-25.5.0.tgz",
+          "integrity": "sha512-OXD0RgQ86Tu3MazKo8bnrkDRaDXXMGUqd+kTtLtK1Zb7CRzQcaSRPPPV37SvYTdevXEBVxe0HXylEjs8ibkmCw==",
+          "dev": true,
+          "requires": {
+            "@types/istanbul-lib-coverage": "^2.0.0",
+            "@types/istanbul-reports": "^1.1.1",
+            "@types/yargs": "^15.0.0",
+            "chalk": "^3.0.0"
+          }
+        },
+        "@types/node-fetch": {
+          "version": "2.5.4",
+          "resolved": "https://registry.npmjs.org/@types/node-fetch/-/node-fetch-2.5.4.tgz",
+          "integrity": "sha512-Oz6id++2qAOFuOlE1j0ouk1dzl3mmI1+qINPNBhi9nt/gVOz0G+13Ao6qjhdF0Ys+eOkhu6JnFmt38bR3H0POQ==",
+          "dev": true,
+          "requires": {
+            "@types/node": "*"
+          }
+        },
+        "@types/yargs": {
+          "version": "15.0.5",
+          "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-15.0.5.tgz",
+          "integrity": "sha512-Dk/IDOPtOgubt/IaevIUbTgV7doaKkoorvOyYM2CMwuDyP89bekI7H4xLIwunNYiK9jhCkmc6pUrJk3cj2AB9w==",
+          "dev": true,
+          "requires": {
+            "@types/yargs-parser": "*"
+          }
+        },
+        "ansi-regex": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
+          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "4.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.2.1.tgz",
+          "integrity": "sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==",
+          "dev": true,
+          "requires": {
+            "@types/color-name": "^1.1.1",
+            "color-convert": "^2.0.1"
+          }
+        },
+        "apollo-engine-reporting-protobuf": {
+          "version": "0.5.1-alpha.1",
+          "resolved": "https://registry.npmjs.org/apollo-engine-reporting-protobuf/-/apollo-engine-reporting-protobuf-0.5.1-alpha.1.tgz",
+          "integrity": "sha512-c533X6iGOTKvwWwoeb+6SXEgJBCMnKGBzSUfVgLdTHJpy41VDvVteRzCWa+JwblM66LiZasxzkQXOpm5OC49MA==",
+          "dev": true,
+          "requires": {
+            "@apollo/protobufjs": "^1.0.3"
+          }
+        },
+        "apollo-server-env": {
+          "version": "2.4.4-alpha.0",
+          "resolved": "https://registry.npmjs.org/apollo-server-env/-/apollo-server-env-2.4.4-alpha.0.tgz",
+          "integrity": "sha512-KoxYIYCZWh3oXDrsh/V43DVgTIo02XGEaLlNuwPMzPxwRA7id1wxcNInqISvd8Os8uoJSGuxkMCCs21UMOpnFw==",
+          "dev": true,
+          "requires": {
+            "node-fetch": "^2.1.2",
+            "util.promisify": "^1.0.0"
+          }
+        },
+        "chalk": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-3.0.0.tgz",
+          "integrity": "sha512-4D3B6Wf41KOYRFdszmDqMCGq5VV/uMAB273JILmO+3jAlh8X4qDtdtgCR3fxtbLEMzSx22QdhnDcJvu2u1fVwg==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true
+        },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true
+        },
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+    },
+    "unique-slug": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/unique-slug/-/unique-slug-2.0.2.tgz",
+      "integrity": "sha512-zoWr9ObaxALD3DOPfjPSqxt4fnZiWblxHIgeWqW8x7UqDzEtHEQLzji2cuJYQFCU6KmoJikOYAZlrTHHebjx2w==",
+      "dev": true,
+      "requires": {
+        "imurmurhash": "^0.1.4"
+      }
+    },
     "universal-user-agent": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-2.1.0.tgz",
@@ -11359,9 +12262,9 @@
       "dev": true
     },
     "yallist": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
-      "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
+      "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==",
       "dev": true
     },
     "yargs": {
@@ -11403,15 +12306,15 @@
       }
     },
     "zen-observable": {
-      "version": "0.8.14",
-      "resolved": "https://registry.npmjs.org/zen-observable/-/zen-observable-0.8.14.tgz",
-      "integrity": "sha512-kQz39uonEjEESwh+qCi83kcC3rZJGh4mrZW7xjkSQYXkq//JZHTtKo+6yuVloTgMtzsIWOJrjIrKvk/dqm0L5g==",
+      "version": "0.8.15",
+      "resolved": "https://registry.npmjs.org/zen-observable/-/zen-observable-0.8.15.tgz",
+      "integrity": "sha512-PQ2PC7R9rslx84ndNBZB/Dkv8V8fZEpk83RLgXtYd0fwUgEjseMn1Dgajh2x6S8QbZAFa9p2qVCEuYZNgve0dQ==",
       "dev": true
     },
     "zen-observable-ts": {
-      "version": "0.8.19",
-      "resolved": "https://registry.npmjs.org/zen-observable-ts/-/zen-observable-ts-0.8.19.tgz",
-      "integrity": "sha512-u1a2rpE13G+jSzrg3aiCqXU5tN2kw41b+cBZGmnc+30YimdkKiDj9bTowcB41eL77/17RF/h+393AuVgShyheQ==",
+      "version": "0.8.21",
+      "resolved": "https://registry.npmjs.org/zen-observable-ts/-/zen-observable-ts-0.8.21.tgz",
+      "integrity": "sha512-Yj3yXweRc8LdRMrCC8nIc4kkjWecPAUVh0TI0OUrWXx6aX790vLcDlWca6I4vsyCGH3LpWxq0dJRcMOFoVqmeg==",
       "dev": true,
       "requires": {
         "tslib": "^1.9.3",
diff --git a/package.json b/package.json
index a3049e7..75b9043 100644
--- a/package.json
+++ b/package.json
@@ -28,8 +28,10 @@
   },
   "homepage": "https://github.com/xolvio/federation-testing-tool#readme",
   "devDependencies": {
-    "@apollo/federation": "0.6.4",
-    "@apollo/gateway": "0.6.7",
+    "@apollo/federation": "0.16.0",
+    "@apollo/gateway": "0.16.0",
+    "apollo-engine-reporting-protobuf": "^0.5.0",
+    "apollo-server-env": "^2.4.3",
     "graphql": "^14.3.1",
     "graphql-tag": "^2.10.1",
     "jest": "^24.8.0",
diff --git a/tests/differentContexts.test.js b/tests/differentContexts.test.js
index b4fbf24..8183b3f 100644
--- a/tests/differentContexts.test.js
+++ b/tests/differentContexts.test.js
@@ -114,7 +114,6 @@ test("first string with merged context", async () => {
     }
   `;
   const result = await executeGraphql({ services: servicesWithContext, query });
-
   expect(result.data.getFirstString).toEqual("first string");
 });
 
diff --git a/tests/multipleServices.test.js b/tests/multipleServices.test.js
index 08a26a0..068972b 100644
--- a/tests/multipleServices.test.js
+++ b/tests/multipleServices.test.js
@@ -14,6 +14,7 @@ const typeDefsProducts = gql`
   }
 `;
 
+
 const typeDefsInventory = gql`
   extend type Mutation {
     addInventoryForProduct(upc: String!, inStock: Boolean): Product
@@ -24,7 +25,7 @@ const typeDefsInventory = gql`
     weight: Int @external
     price: Int @external
     inStock: Boolean
-    shippingEstimate: Int @requires(fields: "price weight")
+    shippingEstimate: Float @requires(fields: "price weight")
   }
 `;
 
@@ -120,7 +121,9 @@ describe("Based on the mocked data from the external service", () => {
   });
 
   it("should not fail when the mocks are not explicit", async () => {
+
     const result = await executeGraphql({ query, services });
+
     const product = result.data.topProducts[0];
     expect(product).toMatchObject({
       name: "Hello World"