Added README

README.md

@@ -0,0 +1,67 @@
+# API
+
+## OAuth2 token
+
+```http
+POST /oauth2/token HTTP/1.1
+Content-Type: application/x-www-form-urlencoded
+
+grant_type=client_credentals
+client_id=...
+client_secret=...
+```
+
+---
+
+```http
+HTTP/1.1 200 OK
+Content-Type: application/json
+
+{
+  "access_token": "...",
+  "expires_in": ...
+}
+```
+
+## List servers
+
+```http
+GET /api/servers HTTP/1.1
+Authorization: Bearer ...
+```
+
+---
+
+```http
+HTTP/1.1 200 OK
+Content-Type: application/json
+
+{
+  "servers": [
+    {
+      "id": "...",
+      "name": "..."
+    },
+    ...
+  ]
+}
+```
+
+## List servers
+
+```http
+GET /api/servers/.../console?time=... HTTP/1.1
+Authorization: Bearer ...
+```
+
+---
+
+```http
+HTTP/1.1 200 OK
+Content-Type: application/json
+
+{
+  "epoch": ..., 
+  "logs": ... // base64
+}
+```