feat(sdk): resolve slashtag from dns human readable address

examples/README.md

@@ -7,3 +7,12 @@ A collection of examples that demonstrate how to use the Slashtags SDK.
 At the root directory of this monorepo, run `npm install`
 
 If you made any changes to this monorepo during devolpment, make sure to run `npm run link` at the root directory, and clean the temporary storage directory by running `npm run clean` in this directory.
+
+## Examples
+
+Available examples and their purpose:
+
+- [auth](./auth/) Demonstrates Auth protocol.
+- [drives/watch](./drives/wathc/) Demonstrates watching live updates to a remote drive.
+- [dns](./drives/) Demonstrates resolving a Slashtag key from a DNS address.
+- [primaryKey](./primaryKey/) Demonstrates generating a primaryKey from a mnemonic seed.

examples/dns/README.md

@@ -0,0 +1,23 @@
+# Slashtags Address
+
+Demonstrates retrieving a Slashtag from DNS based human readable address like `[email protected]`.
+
+## Usage
+
+Run server side:
+
+```bash
+npm run serve
+```
+
+Resolve the Slashtag profile from `alice@localhost:9999`
+
+```bash
+npm run fetch
+```
+
+Or for root level address `localhost:9999`
+
+```bash
+npm run fetch localhost:9999
+```

examples/dns/client.js

@@ -0,0 +1,17 @@
+import { SDK } from '@synonymdev/slashtags-sdk'
+import fetch from 'node-fetch'
+
+const address = process.argv[2] || 'alice@localhost:9999'
+
+const sdk = await SDK.init({ persist: false })
+
+const slashtag = await sdk.fromDNS(address, {
+  protocol: 'http://',
+  fetch
+})
+
+const profile = await slashtag.getProfile()
+
+console.log('Resolved profile', profile)
+
+sdk.close()

examples/dns/package.json

@@ -0,0 +1,7 @@
+{
+    "type": "module",
+    "scripts": {
+        "serve": "node server.js",
+        "fetch": "node client.js"
+    }
+}

examples/dns/server.js

@@ -0,0 +1,27 @@
+import http from 'http'
+import { SDK } from '@synonymdev/slashtags-sdk'
+
+const sdk = await SDK.init({ persist: false })
+
+const alice = sdk.slashtag({ name: 'alice' })
+await alice.setProfile({ name: 'Alice' })
+
+const root = sdk.slashtag({ name: 'root' })
+await root.setProfile({ name: 'Root' })
+
+const server = http.createServer((req, res) => {
+  if (!req.url.startsWith('/.well-known/slashtags')) return
+
+  res.setHeader('Content-Type', 'application/json')
+  res.setHeader('Access-Control-Allow-Origin', '*')
+  res.end(
+    JSON.stringify({
+      _: root.url,
+      alice: alice.url
+    })
+  )
+})
+
+server.listen(9999, () => {
+  console.log('Server listening on localhost:' + 9999)
+})