Shrink apollo-link[-http-common] packages.

package.json

@@ -25,7 +25,7 @@
     {
       "name": "apollo-link",
       "path": "./packages/apollo-link/lib/bundle.min.js",
-      "maxSize": "1.3 Kb"
+      "maxSize": "1.1 Kb"
     },
     {
       "name": "apollo-link-batch",
@@ -104,12 +104,12 @@
   "pre-push": "lint-check",
   "dependencies": {},
   "devDependencies": {
-    "@condenast/bundlesize": "^0.18.1",
+    "@condenast/bundlesize": "0.18.1",
     "@types/zen-observable": "0.8.0",
     "check-if-folder-contents-changed-in-git-commit-range": "1.0.0",
     "codecov": "3.2.0",
     "danger": "3.9.0",
-    "jest": "^24.0.0",
+    "jest": "24.1.0",
     "jest-junit": "6.3.0",
     "lerna": "3.13.1",
     "lint-staged": "7.3.0",
@@ -118,10 +118,11 @@
     "prettier": "1.15.2",
     "prettier-check": "2.0.0",
     "rollup": "1.2.3",
+    "rollup-plugin-invariant": "0.4.2",
     "rollup-plugin-node-resolve": "4.0.1",
     "rollup-plugin-sourcemaps": "0.4.2",
     "rollup-plugin-typescript2": "0.19.3",
-    "terser": "^3.16.1",
+    "terser": "3.16.1",
     "ts-jest": "22.4.6",
     "tslib": "1.9.3",
     "typescript": "3.0.3"

packages/apollo-link-http-common/package.json

@@ -26,6 +26,7 @@
   "license": "MIT",
   "dependencies": {
     "apollo-link": "file:../apollo-link",
+    "ts-invariant": "^0.3.2",
     "tslib": "^1.9.3"
   },
   "peerDependencies": {

packages/apollo-link-http-common/src/index.ts

@@ -1,5 +1,6 @@
 import { Operation } from 'apollo-link';
 import { print } from 'graphql/language/printer';
+import { InvariantError } from 'ts-invariant';
 
 /*
  * Http Utilities: shared across links that make http requests
@@ -24,7 +25,7 @@ export type ServerParseError = Error & {
   bodyText: string;
 };
 
-export type ClientParseError = Error & {
+export type ClientParseError = InvariantError & {
   parseError: Error;
 };
 
@@ -174,7 +175,7 @@ export const checkFetcher = (fetcher: GlobalFetch['fetch']) => {
   if (!fetcher && typeof fetch === 'undefined') {
     let library: string = 'unfetch';
     if (typeof window === 'undefined') library = 'node-fetch';
-    throw new Error(`
+    throw new InvariantError(`
 fetch is not found globally and no fetcher passed, to fix pass a fetch for
 your environment like https://www.npmjs.com/package/${library}.
 
@@ -248,7 +249,7 @@ export const serializeFetchParameter = (p, label) => {
   try {
     serialized = JSON.stringify(p);
   } catch (e) {
-    const parseError = new Error(
+    const parseError = new InvariantError(
       `Network request failed. ${label} is not serializable: ${e.message}`,
     ) as ClientParseError;
     parseError.parseError = e;

packages/apollo-link/package.json

@@ -34,6 +34,8 @@
     "watch": "tsc -w -p . & rollup -c -w"
   },
   "dependencies": {
+    "apollo-utilities": "^1.2.1",
+    "ts-invariant": "^0.3.2",
     "tslib": "^1.9.3",
     "zen-observable-ts": "file:../zen-observable-ts"
   },

packages/apollo-link/src/link.ts

@@ -1,4 +1,5 @@
 import Observable from 'zen-observable-ts';
+import { invariant, InvariantError } from 'ts-invariant';
 
 import {
   GraphQLRequest,
@@ -60,7 +61,7 @@ export const concat = (
 ) => {
   const firstLink = toLink(first);
   if (isTerminating(firstLink)) {
-    console.warn(
+    invariant.warn(
       new LinkError(
         `You are calling concat on a terminating link, which will have no effect`,
         firstLink,
@@ -115,7 +116,7 @@ export class ApolloLink {
     operation: Operation,
     forward?: NextLink,
   ): Observable<FetchResult> | null {
-    throw new Error('request is not implemented');
+    throw new InvariantError('request is not implemented');
   }
 }
 

packages/apollo-link/src/linkUtils.ts

@@ -1,20 +1,12 @@
 import Observable from 'zen-observable-ts';
 import { print } from 'graphql/language/printer';
-import { DocumentNode, OperationDefinitionNode } from 'graphql';
 
 import { GraphQLRequest, Operation } from './types';
 import { ApolloLink } from './link';
 
-export function getOperationName(doc: DocumentNode): string | null {
-  return (
-    doc.definitions
-      .filter(
-        definition =>
-          definition.kind === 'OperationDefinition' && definition.name,
-      )
-      .map((x: OperationDefinitionNode) => x.name.value)[0] || null
-  );
-}
+import { getOperationName } from 'apollo-utilities';
+import { invariant, InvariantError } from 'ts-invariant';
+export { getOperationName };
 
 export function validateOperation(operation: GraphQLRequest): GraphQLRequest {
   const OPERATION_FIELDS = [
@@ -26,7 +18,7 @@ export function validateOperation(operation: GraphQLRequest): GraphQLRequest {
   ];
   for (let key of Object.keys(operation)) {
     if (OPERATION_FIELDS.indexOf(key) < 0) {
-      throw new Error(`illegal argument: ${key}`);
+      throw new InvariantError(`illegal argument: ${key}`);
     }
   }
 
@@ -51,7 +43,7 @@ export function toPromise<R>(observable: Observable<R>): Promise<R> {
     observable.subscribe({
       next: data => {
         if (completed) {
-          console.warn(
+          invariant.warn(
             `Promise Wrapper does not support multiple results from Observable`,
           );
         } else {

packages/apollo-link/src/types.ts

@@ -1,5 +1,6 @@
 import Observable from 'zen-observable-ts';
-import { ExecutionResult, DocumentNode } from 'graphql';
+import { DocumentNode } from 'graphql/language/ast';
+import { ExecutionResult } from 'graphql/execution/execute';
 export { ExecutionResult, DocumentNode };
 
 export interface GraphQLRequest {

rollup.config.js

@@ -2,23 +2,27 @@ import sourcemaps from 'rollup-plugin-sourcemaps';
 import node from 'rollup-plugin-node-resolve';
 import typescript from 'typescript';
 import typescriptPlugin from 'rollup-plugin-typescript2';
+import invariantPlugin from 'rollup-plugin-invariant';
 
 export const globals = {
   // Apollo
   'apollo-client': 'apollo.core',
   'apollo-link': 'apolloLink.core',
   'apollo-link-batch': 'apolloLink.batch',
   'apollo-link-http-common': 'apolloLink.httpCommon',
+  'apollo-utilities': 'apolloUtilities',
   'zen-observable-ts': 'apolloLink.zenObservable',
   'subscriptions-transport-ws': 'subscriptions-transport-ws',
 
-  //GraphQL
+  // GraphQL
   'graphql/language/printer': 'graphql.printer',
   'graphql/execution/execute': 'graphql.execute',
 
   // TypeScript
   'tslib': 'tslib',
 
+  // Other
+  'ts-invariant': 'invariant',
   'zen-observable': 'Observable',
 };
 
@@ -46,6 +50,9 @@ export default name => [
           },
         },
       }),
+      invariantPlugin({
+        errorCodes: true,
+      }),
       sourcemaps()
     ],
   },
@@ -70,6 +77,9 @@ export default name => [
           },
         },
       }),
+      invariantPlugin({
+        errorCodes: true,
+      }),
       sourcemaps()
     ],
   },