📦 chore(frontend): add @types/axios package to improve type checking in the frontend

🐛 fix(typesContext.tsx): remove unnecessary retry logic and error logging in getTypes function
🚀 feat(API/api.tsx): add ApiInterceptor component to handle API response retries and error handling
🚀 feat(API/index.ts): replace axios calls with api instance from API/api.tsx for better code organization and reusability

✨ feat(index.tsx): add ApiInterceptor component to intercept API requests and responses for additional processing

src/frontend/package-lock.json

@@ -29,6 +29,7 @@
         "@tabler/icons-react": "^2.18.0",
         "@tailwindcss/forms": "^0.5.3",
         "@tailwindcss/line-clamp": "^0.4.4",
+        "@types/axios": "^0.14.0",
         "accordion": "^3.0.2",
         "ace-builds": "^1.16.0",
         "add": "^2.0.6",
@@ -147,9 +148,9 @@
       }
     },
     "node_modules/@babel/compat-data": {
-      "version": "7.22.9",
+      "version": "7.22.6",
-      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.22.9.tgz",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.22.6.tgz",
-      "integrity": "sha512-5UamI7xkUcJ3i9qVDS+KFDEK8/7oJ55/sJMB1Ge7IEapr7KfdfV/HErR+koZwOfd+SgtFKOKRhRakdg++DcJpQ==",
+      "integrity": "sha512-29tfsWTq2Ftu7MXmimyC0C5FDZv5DYxOZkh3XD3+QW4V/BYuv/LyEsjj3c0hqedEaDt6DBfDvexMKU8YevdqFg==",
       "engines": {
         "node": ">=6.9.0"
       }
@@ -1191,9 +1192,9 @@
       }
     },
     "node_modules/@mui/private-theming/node_modules/@babel/runtime": {
-      "version": "7.22.6",
+      "version": "7.22.5",
-      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.22.6.tgz",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.22.5.tgz",
-      "integrity": "sha512-wDb5pWm4WDdF6LFUde3Jl8WzPA+3ZbxYqkC6xAXuD3irdEHN1k0NfTRrJD8ZD378SJ61miMLCqIOXYhd8x+AJQ==",
+      "integrity": "sha512-ecjvYlnAaZ/KVneE/OdKYBYfgXV3Ptu6zQWmgEF7vwKhQnvVS6bjMD2XYgj+SNvQ1GfK/pjgokfPkC/2CO8CuA==",
       "dependencies": {
         "regenerator-runtime": "^0.13.11"
       },
@@ -3218,6 +3219,15 @@
       "integrity": "sha512-XTIieEY+gvJ39ChLcB4If5zHtPxt3Syj5rgZR+e1ctpmK8NjPf0zFqsz4JpLJT0xla9GFDKjy8Cpu331nrmE1Q==",
       "dev": true
     },
+    "node_modules/@types/axios": {
+      "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/@types/axios/-/axios-0.14.0.tgz",
+      "integrity": "sha512-KqQnQbdYE54D7oa/UmYVMZKq7CO4l8DEENzOKc4aBRwxCXSlJXGz83flFx5L7AWrOQnmuN3kVsRdt+GZPPjiVQ==",
+      "deprecated": "This is a stub types definition for axios (https://github.com/mzabriskie/axios). axios provides its own type definitions, so you don't need @types/axios installed!",
+      "dependencies": {
+        "axios": "*"
+      }
+    },
     "node_modules/@types/cacheable-request": {
       "version": "6.0.3",
       "resolved": "https://registry.npmjs.org/@types/cacheable-request/-/cacheable-request-6.0.3.tgz",
@@ -3550,7 +3560,7 @@
       "version": "16.18.12",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-16.18.12.tgz",
       "integrity": "sha512-vzLe5NaNMjIE3mcddFVGlAXN1LEWueUsMsOJWaT6wWMJGyljHAWHznqfnKUQWGzu7TLPrGvWdNAsvQYW+C0xtw==",
-      "devOptional": true
+      "dev": true
     },
     "node_modules/@types/parse-json": {
       "version": "4.0.0",
@@ -5596,6 +5606,7 @@
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
       "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
+      "dev": true,
       "hasInstallScript": true,
       "optional": true,
       "os": [

src/frontend/package.json

@@ -24,6 +24,7 @@
     "@tabler/icons-react": "^2.18.0",
     "@tailwindcss/forms": "^0.5.3",
     "@tailwindcss/line-clamp": "^0.4.4",
+    "@types/axios": "^0.14.0",
     "accordion": "^3.0.2",
     "ace-builds": "^1.16.0",
     "add": "^2.0.6",

src/frontend/src/contexts/typesContext.tsx

@@ -71,18 +71,7 @@ export function TypesProvider({ children }: { children: ReactNode }) {
         // Clear the interval if successful.
         clearInterval(intervalId);
       } catch (error) {
-        retryCount++;
+        console.error("An error has occurred while fetching types.");
-        // On error, double the delay for the next attempt up to a maximum.
-        delay = Math.min(30000, delay * 2);
-        // Log errors but don't do anything else - the function will try again on the next interval.
-        console.error(error);
-        // Clear the old interval and start a new one with the new delay.
-        if (retryCount <= maxRetryCount) {
-          clearInterval(intervalId);
-          intervalId = setInterval(getTypes, delay);
-        } else {
-          console.error("Max retry attempts reached. Stopping retries.");
-        }
       }
     }
 

src/frontend/src/controllers/API/api.tsx

@@ -0,0 +1,58 @@
+import axios, { AxiosError, AxiosInstance } from "axios";
+import { useContext, useEffect, useRef } from "react";
+import { alertContext } from "../../contexts/alertContext";
+
+// Create a new Axios instance
+const api: AxiosInstance = axios.create({
+  baseURL: "",
+});
+
+function ApiInterceptor() {
+  const retryCounts = useRef([]);
+  const { setErrorData } = useContext(alertContext);
+
+  useEffect(() => {
+    const interceptor = api.interceptors.response.use(
+      (response) => response,
+      async (error: AxiosError) => {
+        let retryCount = 0;
+
+        while (retryCount < 4) {
+          await sleep(5000); // Sleep for 5 seconds
+          retryCount++;
+          try {
+            const response = await axios.request(error.config);
+            return response;
+          } catch (error) {
+            if (retryCount === 3) {
+              setErrorData({
+                title: "There was an error on web connection, please: ",
+                list: [
+                  "Refresh the page",
+                  "Use a new flow tab",
+                  "Check if the backend is up",
+                  "Endpoint: " + error.config.url,
+                ],
+              });
+              return Promise.reject(error);
+            }
+          }
+        }
+      }
+    );
+
+    return () => {
+      // Clean up the interceptor when the component unmounts
+      api.interceptors.response.eject(interceptor);
+    };
+  }, [retryCounts]);
+
+  return null;
+}
+
+// Function to sleep for a given duration in milliseconds
+function sleep(ms) {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}
+
+export { api, ApiInterceptor };

src/frontend/src/controllers/API/index.ts

@@ -1,5 +1,6 @@
-import axios, { AxiosResponse } from "axios";
+import { AxiosResponse } from "axios";
 import { ReactFlowJsonObject } from "reactflow";
+import { api } from "../../controllers/API/api";
 import { APIObjectType, sendAllProps } from "../../types/api/index";
 import { FlowStyleType, FlowType } from "../../types/flow";
 import {
@@ -17,16 +18,14 @@ import {
  * @returns {Promise<AxiosResponse<APIObjectType>>} A promise that resolves to an AxiosResponse containing all the objects.
  */
 export async function getAll(): Promise<AxiosResponse<APIObjectType>> {
-  return await axios.get(`/api/v1/all`);
+  return await api.get(`/api/v1/all`);
 }
 
 const GITHUB_API_URL = "https://api.github.com";
 
 export async function getRepoStars(owner, repo) {
   try {
-    const response = await axios.get(
+    const response = await api.get(`${GITHUB_API_URL}/repos/${owner}/${repo}`);
-      `${GITHUB_API_URL}/repos/${owner}/${repo}`
-    );
     return response.data.stargazers_count;
   } catch (error) {
     console.error("Error fetching repository data:", error);
@@ -41,13 +40,13 @@ export async function getRepoStars(owner, repo) {
  * @returns {AxiosResponse<any>} The API response.
  */
 export async function sendAll(data: sendAllProps) {
-  return await axios.post(`/api/v1/predict`, data);
+  return await api.post(`/api/v1/predict`, data);
 }
 
 export async function postValidateCode(
   code: string
 ): Promise<AxiosResponse<errorsTypeAPI>> {
-  return await axios.post("/api/v1/validate/code", { code });
+  return await api.post("/api/v1/validate/code", { code });
 }
 
 /**
@@ -62,7 +61,7 @@ export async function postValidatePrompt(
   template: string,
   frontend_node: APIClassType
 ): Promise<AxiosResponse<PromptTypeAPI>> {
-  return await axios.post("/api/v1/validate/prompt", {
+  return await api.post("/api/v1/validate/prompt", {
     name: name,
     template: template,
     frontend_node: frontend_node,
@@ -77,14 +76,14 @@ export async function postValidatePrompt(
 export async function getExamples(): Promise<FlowType[]> {
   const url =
     "https://api.github.com/repos/logspace-ai/langflow_examples/contents/examples?ref=main";
-  const response = await axios.get(url);
+  const response = await api.get(url);
 
   const jsonFiles = response.data.filter((file: any) => {
     return file.name.endsWith(".json");
   });
 
   const contentsPromises = jsonFiles.map(async (file: any) => {
-    const contentResponse = await axios.get(file.download_url);
+    const contentResponse = await api.get(file.download_url);
     return contentResponse.data;
   });
 
@@ -106,11 +105,12 @@ export async function saveFlowToDatabase(newFlow: {
   style?: FlowStyleType;
 }): Promise<FlowType> {
   try {
-    const response = await axios.post("/api/v1/flows/", {
+    const response = await api.post("/api/v1/flows/", {
       name: newFlow.name,
       data: newFlow.data,
       description: newFlow.description,
     });
+
     if (response.status !== 201) {
       throw new Error(`HTTP error! status: ${response.status}`);
     }
@@ -131,7 +131,7 @@ export async function updateFlowInDatabase(
   updatedFlow: FlowType
 ): Promise<FlowType> {
   try {
-    const response = await axios.patch(`/api/v1/flows/${updatedFlow.id}`, {
+    const response = await api.patch(`/api/v1/flows/${updatedFlow.id}`, {
       name: updatedFlow.name,
       data: updatedFlow.data,
       description: updatedFlow.description,
@@ -155,7 +155,7 @@ export async function updateFlowInDatabase(
  */
 export async function readFlowsFromDatabase() {
   try {
-    const response = await axios.get("/api/v1/flows/");
+    const response = await api.get("/api/v1/flows/");
     if (response.status !== 200) {
       throw new Error(`HTTP error! status: ${response.status}`);
     }
@@ -168,7 +168,7 @@ export async function readFlowsFromDatabase() {
 
 export async function downloadFlowsFromDatabase() {
   try {
-    const response = await axios.get("/api/v1/flows/download/");
+    const response = await api.get("/api/v1/flows/download/");
     if (response.status !== 200) {
       throw new Error(`HTTP error! status: ${response.status}`);
     }
@@ -181,7 +181,7 @@ export async function downloadFlowsFromDatabase() {
 
 export async function uploadFlowsToDatabase(flows) {
   try {
-    const response = await axios.post(`/api/v1/flows/upload/`, flows);
+    const response = await api.post(`/api/v1/flows/upload/`, flows);
 
     if (response.status !== 201) {
       throw new Error(`HTTP error! status: ${response.status}`);
@@ -202,7 +202,7 @@ export async function uploadFlowsToDatabase(flows) {
  */
 export async function deleteFlowFromDatabase(flowId: string) {
   try {
-    const response = await axios.delete(`/api/v1/flows/${flowId}`);
+    const response = await api.delete(`/api/v1/flows/${flowId}`);
     if (response.status !== 200) {
       throw new Error(`HTTP error! status: ${response.status}`);
     }
@@ -222,7 +222,7 @@ export async function deleteFlowFromDatabase(flowId: string) {
  */
 export async function getFlowFromDatabase(flowId: number) {
   try {
-    const response = await axios.get(`/api/v1/flows/${flowId}`);
+    const response = await api.get(`/api/v1/flows/${flowId}`);
     if (response.status !== 200) {
       throw new Error(`HTTP error! status: ${response.status}`);
     }
@@ -241,7 +241,7 @@ export async function getFlowFromDatabase(flowId: number) {
  */
 export async function getFlowStylesFromDatabase() {
   try {
-    const response = await axios.get("/api/v1/flow_styles/");
+    const response = await api.get("/api/v1/flow_styles/");
     if (response.status !== 200) {
       throw new Error(`HTTP error! status: ${response.status}`);
     }
@@ -261,7 +261,7 @@ export async function getFlowStylesFromDatabase() {
  */
 export async function saveFlowStyleToDatabase(flowStyle: FlowStyleType) {
   try {
-    const response = await axios.post("/api/v1/flow_styles/", flowStyle, {
+    const response = await api.post("/api/v1/flow_styles/", flowStyle, {
       headers: {
         accept: "application/json",
         "Content-Type": "application/json",
@@ -284,7 +284,7 @@ export async function saveFlowStyleToDatabase(flowStyle: FlowStyleType) {
  * @returns {Promise<AxiosResponse<any>>} A promise that resolves to an AxiosResponse containing the version information.
  */
 export async function getVersion() {
-  const respnose = await axios.get("/api/v1/version");
+  const respnose = await api.get("/api/v1/version");
   return respnose.data;
 }
 
@@ -294,7 +294,7 @@ export async function getVersion() {
  * @returns {Promise<AxiosResponse<any>>} A promise that resolves to an AxiosResponse containing the health status.
  */
 export async function getHealth() {
-  return await axios.get("/health"); // Health is the only endpoint that doesn't require /api/v1
+  return await api.get("/health"); // Health is the only endpoint that doesn't require /api/v1
 }
 
 /**
@@ -306,7 +306,7 @@ export async function getHealth() {
 export async function getBuildStatus(
   flowId: string
 ): Promise<BuildStatusTypeAPI> {
-  return await axios.get(`/api/v1/build/${flowId}/status`);
+  return await api.get(`/api/v1/build/${flowId}/status`);
 }
 
 //docs for postbuildinit
@@ -319,7 +319,7 @@ export async function getBuildStatus(
 export async function postBuildInit(
   flow: FlowType
 ): Promise<AxiosResponse<InitTypeAPI>> {
-  return await axios.post(`/api/v1/build/init/${flow.id}`, flow);
+  return await api.post(`/api/v1/build/init/${flow.id}`, flow);
 }
 
 // fetch(`/upload/${id}`, {
@@ -337,5 +337,5 @@ export async function uploadFile(
 ): Promise<AxiosResponse<UploadFileTypeAPI>> {
   const formData = new FormData();
   formData.append("file", file);
-  return await axios.post(`/api/v1/upload/${id}`, formData);
+  return await api.post(`/api/v1/upload/${id}`, formData);
 }

src/frontend/src/index.tsx

@@ -4,6 +4,7 @@ import App from "./App";
 import ContextWrapper from "./contexts";
 import reportWebVitals from "./reportWebVitals";
 
+import { ApiInterceptor } from "./controllers/API/api";
 import "./index.css";
 
 const root = ReactDOM.createRoot(
@@ -13,6 +14,7 @@ root.render(
   <ContextWrapper>
     <BrowserRouter>
       <App />
+      <ApiInterceptor />
     </BrowserRouter>
   </ContextWrapper>
 );