Leverage built-in fetch API (remove axios)

.eslintrc

@@ -2,6 +2,7 @@
   "parser": "babel-eslint",
   "extends": "airbnb/base",
   "env": {
-    "mocha": true
+    "mocha": true,
+    "browser": true
   }
 }

.github/workflows/main.yml

@@ -6,10 +6,8 @@ jobs:
     strategy:
       matrix:
         node-version:
+          - 20
           - 18
-          - 14
-          - 12
-          - 10
     name: Node ${{ matrix.node-version }} sample
     steps:
       - uses: actions/checkout@v3

package.json

@@ -35,9 +35,6 @@
     "url": "https://github.com/detectlanguage/detectlanguage-node/issues"
   },
   "homepage": "https://github.com/detectlanguage/detectlanguage-node",
-  "dependencies": {
-    "axios": "^0.21.1"
-  },
   "devDependencies": {
     "@babel/cli": "^7.11.6",
     "@babel/core": "^7.11.6",

src/client.js

@@ -1,4 +1,3 @@
-import axios from 'axios';
 import * as defaults from './defaults';
 import { handleError } from './error';
 
@@ -11,28 +10,42 @@ export default class Client {
       Authorization: `Bearer ${apiKey}`,
     };
 
-    this.connection = axios.create({
-      headers,
-      baseURL: `${config.protocol}://${config.host}/${config.apiVersion}/`,
-      timeout: config.timeout * 1000,
-    });
+    this.baseURL = `${config.protocol}://${config.host}/${config.apiVersion}/`;
+    this.timeout = config.timeout * 1000;
+    this.headers = headers;
   }
 
   async get(path) {
     try {
-      const response = await this.connection.get(path);
+      const response = await fetch(this.baseURL + path, {
+        headers: this.headers,
+        timeout: this.timeout,
+      });
 
-      return response.data;
+      if (!response.ok) {
+        throw new Error(await response.text());
+      }
+
+      return await response.json();
     } catch (e) {
       return handleError(e);
     }
   }
 
   async post(path, data) {
     try {
-      const response = await this.connection.post(path, data);
+      const response = await fetch(this.baseURL + path, {
+        method: 'POST',
+        headers: Object.assign(this.headers, { 'Content-Type': 'application/json' }),
+        body: JSON.stringify(data),
+        timeout: this.timeout,
+      });
+
+      if (!response.ok) {
+        throw new Error(await response.text());
+      }
 
-      return response.data;
+      return await response.json();
     } catch (e) {
       return handleError(e);
     }