Move levelup to peer/dev dep and support 5.1.1

Add promise example to README
Update simple example to use promises

.npmignore

@@ -1 +1,3 @@
 examples
+test.js
+.*/**/*

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## [2.2.2] - 2021-11-07
+
+### Changed
+
+- Move `levelup` to peer dependency and support `^5.1.1`.
+
 ## [2.2.1] - 2021-02-14
 
 ### Changed

README.md

@@ -30,6 +30,29 @@ Arguments:
 
 Please refer to the [AWS SDK docs to set up your API credentials](http://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/setting-credentials-node.html) before using.
 
+### Using Promises
+
+```js
+(async () => {
+  // create DB
+  const db = levelup(s3leveldown('mybucket'));
+
+  // put items
+  await db.batch()
+    .put('name', 'Pikachu')
+    .put('dob', 'February 27, 1996')
+    .put('occupation', 'Pokemon')
+    .write();
+
+  // read items
+  await db.createReadStream()
+    .on('data', data => { console.log('data', `${data.key.toString()}=${data.value.toString()}`); })
+    .on('close', () => { console.log('done!') });
+})();
+```
+
+### Using Callbacks
+
 ```js
 const levelup = require('levelup');
 const s3leveldown = require('s3leveldown');

examples/simple/index.js

@@ -9,14 +9,19 @@ if (!process.env.S3_TEST_BUCKET) {
   return;
 }
 
-const db = levelup(s3leveldown(process.env.S3_TEST_BUCKET));
+(async () => {
+  // create DB
+  const db = levelup(s3leveldown(process.env.S3_TEST_BUCKET));
 
-db.batch()
-  .put('name', 'Pikachu')
-  .put('dob', 'February 27, 1996')
-  .put('occupation', 'Pokemon')
-  .write(function () { 
-    db.readStream()
-      .on('data', console.log)
-      .on('close', function () { console.log('Pika pi!') })
-  });
+  // put items
+  await db.batch()
+    .put('name', 'Pikachu')
+    .put('dob', 'February 27, 1996')
+    .put('occupation', 'Pokemon')
+    .write();
+
+  // read items
+  await db.createReadStream()
+    .on('data', data => { console.log('data', `${data.key.toString()}=${data.value.toString()}`); })
+    .on('close', () => { console.log('done!') });
+})();

examples/simple/package.json

@@ -1,15 +1,15 @@
 {
-  "name": "pouchdb-example",
+  "name": "simple-example",
   "version": "1.0.0",
   "description": "Simple s3leveldown example",
   "main": "index.js",
   "author": "Loune",
   "license": "MIT",
   "private": true,
   "dependencies": {
-    "aws-sdk": "^2.653.0",
-    "levelup": "^4.3.2",
-    "s3leveldown": "^2.1.0"
+    "aws-sdk": "^2.1023.0",
+    "levelup": "^5.1.1",
+    "s3leveldown": "^2.2.1"
   },
   "scripts": {
     "start": "node index.js"

package.json

@@ -30,16 +30,16 @@
     "abstract-leveldown": "^6.3.0",
     "debug": "^4.3.1",
     "inherits": "^2.0.4",
-    "levelup": "^4.4.0",
     "ltgt": "^2.2.1"
   },
   "peerDependencies": {
     "aws-sdk": "^2.838.0",
-    "levelup": "^4.4.0"
+    "levelup": "^4.4.0 || ^5.1.1"
   },
   "devDependencies": {
     "aws-sdk": "^2.838.0",
     "jshint": "^2.12.0",
+    "levelup": "^5.1.1",
     "tape": "^5.1.1"
   }
 }