Develop Reference

how to use request response in another request

I'm trying to use the first express request and response data to the second request, the problem is that both requests need to have their own body data in case I want to use them in the frontend node, is there any efficient approach to solve this issue.
in my below requests code, I must use the uploadlink from the first request to the second request.
const ThumbnailUploadlink = async (req, res) => {
const { videoId } = req.body;
const clientServerOptions11 = {
uri: `https://api.vimeo.com/videos/${videoId}/pictures`,
body: JSON.stringify({
name: videoId,
}),
method: 'POST',
headers: {
'Content-Type': 'application/json',
Accept: 'application/vnd.vimeo.*+json;version=3.4',
Authorization: getVimeoAuthorization(),
},
};
request(clientServerOptions11, function (error, response) {
if (error) {
res.send(error);
} else {
const body = JSON.parse(response.body);
res.send(body);
const uploadLink = body.link;
console.log(uploadLink);
}
});
};
// uploadLink must take value from previous request
const ThumbnailUpload = async (req, res, uploadLink) => {
const { selectedFile } = req.body;
const clientServerOptions = {
url: `${uploadLink}`,
body: JSON.stringify({
name1: selectedFile,
}),
method: 'PUT',
headers: {
'Content-Type': 'application/json',
Accept: 'application/vnd.vimeo.*+json;version=3.4',
Authorization: getVimeoAuthorization(),
},
};
request(clientServerOptions, function (error, response) {
if (error) {
res.send(error);
console.log(uploadLink);
} else {
const body = JSON.parse(response.body);
res.send(body);
console.log(uploadLink);
}
});
};

Next JS API Routes add query on Client side

I am fetching IGDB api on server because I need to go through CORS. I am using async await connected to client side. Everything works fine but I need to pass query like '/?fields=cover.*,name;limit=50;' to https://api.igdb.com/v4/games from client side, not from server. When I am adding a query to client side, it's still showing the query only from server. How I can pass this query from client side? This is my code:
api/example.js
import Cors from "cors";
import initMiddleware from "../../components/init-middleware";
const cors = initMiddleware(
Cors({
methods: ['GET', 'POST', 'OPTIONS'],
})
)
const settings = {
method: 'POST',
headers: {
'Accept': 'application/json',
'Client-ID': 'my_client-id',
'Authorization': 'Bearer my_authorization',
},
}
const remoteServerUrl = 'https://api.igdb.com/v4/games'
export default async function handler(req, res) {
await cors(req, res)
const response = await fetch(remoteServerUrl, settings);
const data = await response.json()
res.json(data)
}
client side
const settings = {
method: 'POST',
headers: {
'Accept': 'application/json',
'Client-ID': 'my_client-id',
'Authorization': 'Bearer my_authorization',
},
const fetchData = async () => {
let query = '/api/example/'
const response = await fetch(query + HERE I WANT TO ADD QUERY, settings);
const data = await response.json();
}
Edit:
Status Code: 308 Permanent Redirect
initMiddleware
// Helper method to wait for a middleware to execute before continuing
// And to throw an error when an error happens in a middleware
export default function initMiddleware(middleware) {
return (req, res) =>
new Promise((resolve, reject) => {
middleware(req, res, (result) => {
if (result instanceof Error) {
return reject(result)
}
return resolve(result)
})
})
}

Post request with node js

I'm trying to make a post request with node.js and when I try to run it, I get the data to show up in the console but noot the body of my HTML. In the console I get the error
app.js:4 POST http://localhost:8000/addAnimal net::ERR_EMPTY_RESPONSE
postData # app.js:4
(anonymous) # app.js:25
app.js:21 Uncaught (in promise) TypeError: Failed to fetch
It seems like the function is working but not the actual post request part. I can't for the life of me figure out what I'm doing wrong.
This is my code:
server.js:
projectData = {};
/* Express to run server and routes */
const express = require('express');
/* Start up an instance of app */
const app = express();
/* Dependencies */
const bodyParser = require('body-parser')
/* Middleware*/
app.use(express.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
const cors = require('cors');
app.use(cors());
/* Initialize the main project folder*/
app.use(express.static('project1'));
const port = 8000;
/* Spin up the server*/
const server = app.listen(port, listening);
function listening(){
// console.log(server);
console.log(`running on localhost: ${port}`);
};
// GET route
app.get('/all', sendData);
function sendData (request, response) {
response.send(projectData);
};
// POST route
app.post('/add', callBack);
function callBack(req,res){
res.send('POST received');
}
// POST an animal
const data = [];
// TODO-Call Function
app.route('/addAnimal')
.get(function (req, res) {
res.sendFile('index.html', {root: 'project1'})
})
.post(function (req, res) {
data.push(req.body)
})
app.js
/* Function to POST data */
const postData = async ( url = '', data = {})=>{
console.log(data);
const response = await fetch(url, {
method: 'POST', // *GET, POST, PUT, DELETE, etc.
credentials: 'same-origin', // include, *same-origin, omit
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(data), // body data type must match "Content-Type" header
});
try {
const newData = await response.json()
// console.log(newData);
return newData.json()
}catch(error) {
console.log("error", error)
// appropriately handle the error
};
};
// TODO-Call Function
postData('/addAnimal', {animal:'lion'});
Any help would be greatly appreciated.
Thanks,
Mike

💡 The only one reason why you got message like it, it's because you never send response to the client.
👨‍🏫 So, You should to send response to the client. For an example, you can look at this code below: 👇
app.route('/addAnimal')
.get(function (req, res) {
res.sendFile('index.html', {root: 'project1'})
})
.post(function (req, res) {
data.push(req.body);
// send data to client
// you can change req.body with the object what you want to sent do the client
res.status(200).send(req.body);
})
📤 Update: Addtional information
Make sure you call the endpoint: http://localhost:8000/addAnimal.
Frontend: Make sure your code like this code below
const postData = async ( url = '', data = {})=>{
const response = await fetch(url, {
method: 'POST', // *GET, POST, PUT, DELETE, etc.
credentials: 'same-origin', // include, *same-origin, omit
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(data), // body data type must match "Content-Type" header
});
try {
console.log(await response.json());
return await response.json()
}catch(error) {
console.log("error", error);
};
};
I hope it can help you 🙏.

Try this:
app.route('/addAnimal')
.get(function (req, res) {
res.sendFile('index.html', {root: 'project1'})
})
.post(function (req, res) {
data.push(req.body);
res.send('done'); // send response
});

Change the app.js code with the below.
/* Function to POST data */
const postData = async (url = "", data = {}) => {
const response = await fetch(url, {
method: "POST", // *GET, POST, PUT, DELETE, etc.
credentials: "same-origin", // include, *same-origin, omit
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify(data) // body data type must match "Content-Type" header
});
try {
return response.json();
} catch (error) {
console.log("error", error);
// appropriately handle the error
}
};
// TODO-Call Function
(async function(){
let res = await postData("/addAnimal", { animal: "lion" });
console.log(res);
})();
And also change the post method like below.
app.route('/addAnimal')
.get(function (req, res) {
res.sendFile('index.html', {root: 'project1'})
})
.post(function (req, res) {
data.push(req.body);
res.status(200).send(data);
})

Express routes giving 500 internal server

my server can't find the api's that i created in api directory. it leads to 500 internal server.
I have checked routes.js but i see that everything is right. i have an error.js file for file handling. Here's my code.
'use strict';
let router = require('express').Router();
// Middleware
let middleware = require('./controllers/middleware');
router.use(middleware.doSomethingInteresting);
// Tasks
let tasks = require('./controllers/tasks');
let createkeypairs = require('./controllers/createkeypairs');
let importaddress = require('./controllers/importaddress');
let getwalletinfo = require('./controllers/getwalletinfo');
router.get('/tasks', tasks.findAll2);
router.get('/createkeypairs', createkeypairs.findAll);
router.get('/importaddress', importaddress.findAll);
router.get('/getwalletinfo', getwalletinfo.findAll);
router.post('/buggyroute', tasks.buggyRoute);
// Error Handling
let errors = require('./controllers/errors');
router.use(errors.errorHandler);
// Request was not picked up by a route, send 404
router.use(errors.nullRoute);
// Export the router
module.exports = router;
now showing you my createkeypairs.js
'use strict';
let errors = require('./errors.js');
var request = require("request");
var options = { method: 'POST',
url: '127.0.0.1:18332',
headers:
{ 'Authorization': 'Basic bXVsdGljaGFpbnJwYzpHTmJ5enJhMnlHRjN4Ymp1cnluRTFucTlnV1ExRXV3OTFpYVBqSkt5TkJxdA==',
'cache-control': 'no-cache',
'Cache-Control': 'no-cache',
'Content-Type': 'application/json' },
body: { method: 'createkeypairs', params: [], chain_name: 'tokenchain' },
json: true };
exports.findAll = (req, res, next) => {
// Simulate task list, normally this would be retrieved from a database
let createkeypairs ;
request(options, function (error, response, body) {
if (error) throw new Error(error);
console.log("working here ");
// res.json(body);
});
};
exports.buggyRoute = (req, res, next) => {
// Simulate a custom error
next(errors.newHttpError(400, 'bad request'));
};

I think the problem is in createkeypair file.
Try this code once for your createkeypairs.js:
'use strict';
let errors = require('./errors.js');
var request = require("request");
let config = require('config');
var auth = 'Basic ' + Buffer.from(config.user + ':' + config.pass).toString('base64');
var url = config.url;
var chain = config.chain;
var options = { method: 'POST',
url: url,
headers:
{ 'cache-control': 'no-cache',
Authorization : auth,
'Content-Type': 'application/json' },
body: { method: 'importaddress', params: ["address"], chain_name: chain },
json: true };
exports.findAll = (req, res, next) => {
// Simulate task list, normally this would be retrieved from a database
let createkeypairs ;
request(options, function (error, response, body) {
if (error) throw new Error(error);
console.log(body);
res.json(body);
});
};
exports.buggyRoute = (req, res, next) => {
// Simulate a custom error
next(errors.newHttpError(400, 'bad request'));
};
Do tell me if it works or not.

Angular 5 Post data with Nodejs - Wrong format of body

I am using nodejs as back-end for angular 5 application . When I am posting data with http post request then it coming at nodejs in wrong formate (Values as property)-
This is my service code of angular 5 -
login(email: string, password: string) {
let headers = new Headers({ 'Content-Type': 'application/x-www-form-urlencoded' });
let options = new RequestOptions({ headers: headers });
let body = { EmailAddress: email, Password: password };
return this.http.post('http://localhost:3000/api/user/login', body, options )
.map((response: Response) => {
let user = response.json();
if (user && user.token) {
localStorage.setItem('currentUser', JSON.stringify(user));
}
});
}
This is Node API - in body I am getting value as property
app.post('/api/user/login', urlencodedBodyparser, function (req, res) {
console.log(req.body);
User.find({ "EmailAddress": req.body["EmailAddress"], "Password": req.body["Password"] }, function (err, users) {
console.log(users.length);
if (err != null) {
sendError(err, res);
}
if (users != null) {
var count = users.length;
if (count > 0) {
response.data = users[0];
res.json(response);
}
else {
sendError({ message :'No user found'}, res);
console.log("Login Failed");
}
}
else {
sendError(err, res);
}
})
});
Code for body parser -
var bodyParser = require('body-parser');
var urlencodedBodyparser = bodyParser.urlencoded({ extended: false });
app.use(urlencodedBodyparser);

try to change the header content-type to json
application/json
like this:
options() {
const headers = new Headers({
'content-type': 'application/json'
});
const options = new RequestOptions({ headers: headers });
return options;
}
login(): Observable<any> {
return this.http.post('http://localhost:3000/api/user/login', this.options()).
map((res: Response) => res.json());
}

You need to use body-parser middleware https://github.com/expressjs/body-parser
Here is more information What does body-parser do with express?
Try to use this :
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));