1 files changed, 63 insertions, 0 deletions
diff --git a/frontend/ts/src/request.ts b/frontend/ts/src/request.ts
new file mode 100644
index 0000000..90906f9
--- /dev/null
+++ b/frontend/ts/src/request.ts
@@ -0,0 +1,63 @@
+import * as route from 'route'
+
+export async function get<T>(path: string): Promise<T> {
+    return await request('GET', path, null, JSON.parse)
+}
+
+export async function post<T>(path: string, body: any = ''): Promise<T> {
+    return await request('POST', path, body, JSON.parse)
+}
+
+export async function post_(path: string, body: any = ''): Promise<void> {
+    return await request('POST', path, body, _ => {})
+}
+
+export async function put<T>(path: string, body: any = ''): Promise<T> {
+    return await request('PUT', path, body, JSON.parse)
+}
+
+export async function put_(path: string, body: any = ''): Promise<void> {
+    return await request('PUT', path, body, _ => {})
+}
+
+export async function del<T>(path: string, body: any = ''): Promise<T> {
+    return await request('DELETE', path, body, JSON.parse)
+}
+
+export async function del_(path: string, body: any = ''): Promise<void> {
+    return await request('DELETE', path, body, _ => {})
+}
+
+interface Message {
+    message: string
+}
+
+function request<T>(verb: string, path: string, body: any, f: (payload: string) => T): Promise<T> {
+    return new Promise((resolve, reject) => {
+        const xmlHttp = new XMLHttpRequest()
+        xmlHttp.onreadystatechange = function() {
+            if (xmlHttp.readyState == 4) {
+                if (xmlHttp.status == 200) {
+                    try {
+                        resolve(f(xmlHttp.responseText))
+                    } catch {
+                        reject({ message: `Erreur de lecture de la réponse de requête réussie: ${xmlHttp.responseText}`})
+                    }
+                } else {
+                    // Redirect to /login when receiving a forbidden outside of /login
+                    if (xmlHttp.status == 403 && window.location.pathname !== '/login') {
+                        route.push(route.login)
+                    } else {
+                        try {
+                            reject(JSON.parse(xmlHttp.responseText) as Message)
+                        } catch {
+                            reject({ message: `Erreur de lecture de la réponse de requête échouée: ${xmlHttp.responseText}`})
+                        }
+                    }
+                }
+            }
+        }
+        xmlHttp.open(verb, path, true);
+        xmlHttp.send(body)
+    })
+}