:memo: add demo of v1 api

documents/development/frontend/api-v1.md

@@ -0,0 +1,51 @@
+# API In V1
+
+```javascript
+/**
+ * /api/v2/like
+ * @method POST
+ * @param {string} liketype 下列值之一 like,favorite,watch
+ * @param {string} restype 资源类型 下列值之一 chapter,article,course
+ * @param {string} resid   资源 uuid
+ *
+ * @responce {json}
+ *          data{
+                ok: bool,
+                message: string,
+                data:{
+                    type: string, 资源类型 下列值之一 chapter,article,course
+                    target_id: string, 资源 uuid
+                    id: string 点赞记录的uuid
+                }
+            }
+ */
+function add(liketype, restype, resid) {
+    fetch('/api/v2/like', {
+        method: 'POST',
+        credentials: 'include',
+        headers: {
+            'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+            type: liketype,
+            target_type: restype,
+            target_id: resid
+        })
+    })
+        .then(response => response.json())
+        .then(function (data) {
+            console.log(data);
+            let result = data.data;
+            if (data.ok == true) {
+                for (let it of arrElement) {
+                    if (result.type === it.like_type &&
+                        result.target_id === it.resource_id) {
+                        it.like++;
+                        it.me = result.id;
+                    }
+                }
+                Render();
+            }
+        });
+}
+```