Implemented article get endpoint

js/api.ts

@@ -54,7 +54,7 @@ async function login(username: string, password: string): Promise<void> {
     let result = await fetch(`${prefix}/api/login`, {
         method: "POST",
         body: JSON.stringify({"username": username, "password": password}),
-        credentials: "include"
+        credentials: "same-origin"
     })
     switch (result.status) {
         case 200:
@@ -119,6 +119,34 @@ async function search(q: SearchQuery): Promise<ArticleSummary[]> {
     }
 }
 
+interface ArticleGetPayload {
+    title: string,
+    summary: string,
+    authors: number[],
+    image: string,
+    tags: string[],
+    link: string
+    content: string
+}
+
+async function getArticle(id: number): Promise<ArticleGetPayload> {
+    let query = [["id", id]]
+
+    let result = await fetch(`${prefix}/api/article?${buildQuery(query)}`, {
+        method: "GET"
+    })
+    switch (result.status) {
+        case 200:
+            return await result.json()
+        case 401:
+            throw new Error("Not authorized")
+        case 404:
+            throw new Error("Article not found")
+        default:
+            throw await unknownResponse(result)
+    }
+}
+
 interface ArticleUploadPayload {
     title: string,
     summary: string,