Add support for @apollo/client (#15)

* Upgrades to apollo/client

* Changes on dependencies

* Update docs

* Drop support before Node v10

* Meet Apollo Client v3 peer deps

Co-authored-by: Maël Nison <nison.mael@gmail.com>

.travis.yml

@@ -1,6 +1,8 @@
 language: node_js
 node_js:
-  - "6"
+  - "10"
+  - "12"
+  - "14"
 
 script:
   - yarn install && yarn test && yarn run coverage && yarn run lint

README.md

@@ -32,10 +32,8 @@ yarn add apollo-link-debounce
 ### Usage
 
 ```js
-import { ApolloLink } from 'apollo-link';
-import { HttpLink } from 'apollo-link-http';
-import { RetryLink } from 'apollo-link-retry';
-import gql from 'graphql-tag';
+import { gql, ApolloLink, HttpLink } from '@apollo/client';
+import { RetryLink } from '@apollo/client/link/retry';
 
 import DebounceLink from 'apollo-link-debounce';
 

package.json

@@ -2,21 +2,22 @@
   "name": "apollo-link-debounce",
   "version": "2.1.0",
   "description": "An Apollo Link to debounce requests",
-  "dependencies": {
-    "apollo-link": "^1.2.2",
-    "zen-observable-ts": "^0.8.9"
+  "peerDependencies": {
+    "@apollo/client": "^3.0.0"
   },
   "devDependencies": {
+    "@apollo/client": "^3.0.0",
     "@types/graphql": "^0.13.0",
     "@types/jest": "^23.1.4",
-    "@types/node": "10.1.2",
+    "@types/node": "^13.13.2",
+    "@types/react": "^16.9.34",
     "codecov": "^3.0.3",
-    "graphql": "^0.13.2",
-    "graphql-tag": "^2.9.2",
+    "graphql": "^15.0.0",
     "nyc": "^11.2.1",
+    "react": "^17.0.0",
     "react-scripts-ts": "^2.16.0",
     "tslint": "^5.8.0",
-    "typescript": "^2.6.2"
+    "typescript": "^3.8.3"
   },
   "main": "build/dist/index.js",
   "module": "build/dist/index.js",
@@ -31,12 +32,14 @@
     "lint": "tslint src/*.ts* src/**/*.ts*",
     "test": "react-scripts-ts test --coverage --collectCoverageFrom=src/**/*.ts* --collectCoverageFrom=!src/index.ts --collectCoverageFrom=!src/TestUtils.ts && yarn run lint",
     "testonly": "react-scripts-ts test --env=jsdom",
+    "prepack": "yarn run build",
     "coverage": "codecov -f coverage/*.json"
   },
   "keywords": [
     "graphql",
     "apollo",
     "apollo-link",
+    "@apollo/client",
     "offline",
     "queue"
   ],

src/DebounceLink.test.ts

@@ -6,16 +6,15 @@ import {
     assertObservableSequence,
 } from './TestUtils';
 import {
+    gql,
     execute,
     GraphQLRequest,
     ApolloLink,
-} from 'apollo-link';
+} from '@apollo/client';
 import {
     ExecutionResult,
 } from 'graphql';
 
-import gql from 'graphql-tag';
-
 describe('DebounceLink', () => {
     let link: ApolloLink;
     let testLink: TestSequenceLink;

src/DebounceLink.ts

@@ -1,10 +1,11 @@
 import {
     ApolloLink,
     FetchResult,
+    Observable,
+    Observer,
     Operation,
     NextLink,
-} from 'apollo-link';
-import { Observable, Observer } from 'zen-observable-ts';
+} from '@apollo/client';
 
 interface OperationQueueEntry {
     operation: Operation;
@@ -54,7 +55,7 @@ export default class DebounceLink extends ApolloLink {
         if (!debounceKey) {
             return forward(operation);
         }
-        return new Observable(observer => {
+        return new Observable<FetchResult>(observer => {
             const debounceGroupId = this.enqueueRequest({ debounceKey, debounceTimeout }, { operation, forward, observer });
             return () => {
                 this.unsubscribe(debounceKey, debounceGroupId, observer);

src/TestUtils.ts

@@ -3,7 +3,7 @@ import {
     Operation,
     Observable,
     NextLink,
-} from 'apollo-link';
+} from '@apollo/client';
 import {
     ExecutionResult,
 } from 'graphql';

tsconfig.json

@@ -1,10 +1,11 @@
 {
     "compilerOptions": {
         "declaration": true,
+	"esModuleInterop": true,
         "module": "commonjs",
         "moduleResolution": "node",
         "noImplicitAny": true,
-        "lib": ["esnext"],
+        "lib": ["dom", "esnext"],
         "removeComments": true,
         "preserveConstEnums": true,
         "outDir": "build/dist",