I just started learning about APIs and I am trying to use the pexels API found here: https://www.pexels.com/api/
I have gotten the API Key, however I am not sure where to put my API key at.
I want the result to display JSON.
When I run this code on bash it works, however, I am not sure how to do it inside javascript.
curl -H "Authorization: YOUR_API_KEY" "http://api.pexels.com/v1/search?query=people"
I am running express and request.
This is my code.
var express = require("express");
var app = express();
var request = require("request");
app.set("view engine","ejs");
var url = "http://api.pexels.com/v1/search?query=example+query&per_page=15&page=1";
request(url, function(error,response, body){
if(!error && response.statusCode == 200){
console.log(body);
}
});
app.listen(process.env.PORT, process.env.IP, function(){
console.log("server is running!");
});
Any help is greatly appreciated as I am new to this and tried to Google for an answer but couldn't. Thank you!
You need to add header to make api calls,
The code goes this way,
var express = require("express");
var app = express();
var request = require("request");
app.set("view engine","ejs");
var data = {
url : "http://api.pexels.com/v1/search?query=example+query&per_page=15&page=1",
headers: {
'Authorization': 'Your-Api-Key'
}
}
request(data, function(error,response, body){
if(!error && response.statusCode == 200){
console.log(body);
}
});
app.listen(process.env.PORT, process.env.IP, function(){
console.log("server is running!");
});
Related
I'm currently working on a project using a React frontend and an Express backend. Currently, when I make a GET request to retrieve data from the backend, everything is working fine. However, I'm unable to POST data to the backend and gain access to the data that's being sent. I'm getting an OK message so the request is going through, but when I log the request data in the backend, I get a message like this which is a jumble of random fields.
Here is the code snippit in the front end for the POST request
const makePost = (data) => {
fetch('http://localhost:5000/api', {
method: 'POST',
headers: {"Content-Type": "application/json", "Access-Control-Allow-Origin": "*"},
body: JSON.parse(JSON.stringify(data))
}).then(function(response){
console.log(response.text())
})
}
Here is my backend which handles the POST request
const express = require('express');
const app = express();
const cors = require('cors');
app.use(cors({
origin: '*'
}));
app.get('/api', (req,res) => {
res.json(menuItems);
});
app.post('/api', (req,res) => {
console.log(req)
})
app.listen(5000, () => console.log("server started on port 5000"));
In the code snippit above, console.log(req) is what was logged in the screenshot linked above.
In your Express server POST API, you are not returning any data, it may cause problems. This is a sample POST API using Axios, Express, React, and MongoDB.Hope it would help you.
//POST API
app.post('/services',async(req,res)=>{
const service = req.body;
const result = await servicesCollection.insertOne(service);
console.log(result);
res.send(result)
});
In client-side POST api:
const onSubmit = data => {
axios.post('http://localhost/services', data)
.then(res=>{
if(res.data.insertedId){
alert('data added successfully');
reset();
}
})
sample post API:
app.post('/book', (req, res) => {
const book = req.body;
// Output the book to the console for debugging
console.log(book);
books.push(book);
res.send('Book is added to the database');
});
Pls take a look at this link: https://riptutorial.com/node-js/example/20967/post-api-using-express
I am trying to login via the webfront end and trying to intercept a cookie and then using that in the subsequent API request. I am having trouble getting the cookie back into the GET request. Code posted below.
import https from 'https';
import { bitbucketUser } from "../userRole.js"
import { ClientFunction } from 'testcafe';
fixture `Request/Response API`
// .page `https://myurl.company.com/login`
.beforeEach(async t => {
await t.useRole(bitbucketUser)
});
test('test', async t => {
const getCookie = ClientFunction(() => {
return document.cookie;
});
var mycookie = await getCookie()
const setCookie = ClientFunction(mycookie => {
document.cookie = mycookie;
});
var validatecookie = await getCookie()
console.log(validatecookie)
const executeRequest = () => {
return new Promise(resolve => {
const options = {
hostname: 'myurl.company.com',
path: '/v1/api/policy',
method: 'GET',
headers: {
'accept': 'application/json;charset=UTF-8',
'content-type': 'application/json'
}
};
const req = https.request(options, res => {
console.log('statusCode:', res.statusCode);
console.log('headers:', res.headers);
let body = "";
res.on("data", data => {
body += data;
});
res.on("end", () => {
body = JSON.parse(body);
console.log(body);
});
resolve();
});
req.on('error', e => {
console.error(e);
});
req.end();
});
};
await setCookie(mycookie)
await executeRequest();
});
I have tried several examples but am quite not able to figure what is it that I am missing.
When you call the setCookie method, you modify cookies in your browser using the ClientFunction.
However, when you call your executeRequest method, you run it on the server side using the nodejs library. When you set cookies on the client, this will not affect your request sent from the server side. You need to add cookie information directly to your options object as described in the following thread: How do I create a HTTP Client Request with a cookie?.
In TestCafe v1.20.0 and later, you can send HTTP requests in your tests using the t.request method. You can also use the withCredentials option to attach all cookies to a request.
Please also note that TestCafe also offers a cookie management API to set/get/delete cookies including HTTPOnly.
So I'm trying to make a google action using Dialogflow that requires an external API. I've always used jQuery .getJSON() to make API calls, so I had no idea how to do this. After searching this up online, I found a way to do this using vanilla javascript (I also tested the way on my website and it worked fine). The code for that is below:
function loadXMLDoc() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == XMLHttpRequest.DONE) {
console.log(xmlhttp.responseText);
}
};
xmlhttp.open("GET", "https://translate.yandex.net/api/v1.5/tr.json/translate?lang=en-es&key=trnsl.1.1.20190105T052356Z.7f8f950adbfaa46e.9bb53211cb35a84da9ce6ef4b30649c6119514a4&text=eat", true);
xmlhttp.send();
}
The code worked fine on my website, but as soon as I added it to the Dialogflow, it would give me the error
XMLHttpRequest is not defined
Obviously that happened because I never defined it (using var), except it worked without me doing anything. So then, I tried adding this line
var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
to the code, and it stopped giving me the error (because I defined XMLHttpRequest). But then, my code wouldn't work.
TL;DR: How can I make an external API call using Dialogflow fulfillment?
You can use https. But make sure that you upgrade to Blaze Pay(or any other plans) to make external API calls, else you will receive an error such as
Error:
Billing account not configured. External network is not accessible and quotas are severely limited. Configure billing account to remove these restrictions.
Code to make external api call,
// See https://github.com/dialogflow/dialogflow-fulfillment-nodejs
// for Dialogflow fulfillment library docs, samples, and to report issues
"use strict";
const functions = require("firebase-functions");
const { WebhookClient } = require("dialogflow-fulfillment");
const { Card, Suggestion } = require("dialogflow-fulfillment");
const https = require("https");
process.env.DEBUG = "dialogflow:debug"; // enables lib debugging statements
exports.dialogflowFirebaseFulfillment = functions.https.onRequest(
(request, response) => {
const agent = new WebhookClient({ request, response });
console.log(
"Dialogflow Request headers: " + JSON.stringify(request.headers)
);
console.log("Dialogflow Request body: " + JSON.stringify(request.body));
function getWeather() {
return weatherAPI()
.then(chat => {
agent.add(chat);
})
.catch(() => {
agent.add(`I'm sorry.`);
});
}
function weatherAPI() {
const url =
"https://samples.openweathermap.org/data/2.5/weather?q=London,uk&appid=b6907d289e10d714a6e88b30761fae22";
return new Promise((resolve, reject) => {
https.get(url, function(resp) {
var json = "";
resp.on("data", function(chunk) {
console.log("received JSON response: " + chunk);
json += chunk;
});
resp.on("end", function() {
let jsonData = JSON.parse(json);
let chat = "The weather is " + jsonData.weather[0].description;
resolve(chat);
});
});
});
}
function welcome(agent) {
agent.add(`Welcome to my agent!`);
}
function fallback(agent) {
agent.add(`I didn't understand`);
agent.add(`I'm sorry, can you try again?`);
}
let intentMap = new Map();
intentMap.set("Default Welcome Intent", welcome);
intentMap.set("Default Fallback Intent", fallback);
intentMap.set("Weather Intent", getWeather);
agent.handleRequest(intentMap);
}
);
This article is a diamond! It really helped to clarify what's going on and what's required in Dialogflow fullfilments.
A small suggestion is to gracefully catch the error in the connection to the webservice:
function weatherAPI() {
const url = "https://samples.openweathermap.org/data/2.5/weather?q=London,uk&appid=b6907d289e10d714a6e88b30761fae22";
return new Promise((resolve, reject) => {
https.get(url, function(resp) {
var json = "";
resp.on("data", function(chunk) {
console.log("received JSON response: " + chunk);
json += chunk;
});
resp.on("end", function() {
let jsonData = JSON.parse(json);
let chat = "The weather is " + jsonData.weather[0].description;
resolve(chat);
});
}).on("error", (err) => {
reject("Error: " + err.message);
});
});
}
I encountered a problem in getting client POST data as follow:
my client sent:
content-type:application/x-www-form-urlencoded
the content:
{"value":"123456"}
In node.js, it is no problem to parse the content to a json object, my code as follow:
http.createServer(function onRequest(request, response) {
request.setEncoding("utf8");
var content = [];
request.addListener("data", function(data) {
content.push(data); //Collect the incoming data});
//At the end of request call
request.addListener("end", function() {
response.writeHead( 200, {"Content-Type": "text/plain"} );
ms = content[0];
if(ms.toString() != "")
{
var msg = ms.toString(); //Parse the ms into string
console.log(msg); // Prints the message in the console
var reqObj = JSON.parse(msg); // If the incoming message is in JSON format, it can be parsed as JSON.
console.log(reqObj);
response.end(); //Close the response
}
});
Output of the above code:
{"account": "48264"} //before parse to JSON
{ account: '48264' } //after parse to JSON
but when I changed into express.js and use bodyParser, it mixed up.
var express = require('express');
var router = express.Router();
/* GET users listing. */
router.post('/', function(req, res, next) {
req.setEncoding('utf8');
console.log(req.body);
console.log(req.body.value);
});
module.exports = router;
The above outputs in the console as follow:
{ "{\"account\": \"123456\"}": "" }
undefined
I searched the web, but can't find the solution. please help.
Thanks in advance
You need to use express body-parser middleware before defining any routes.
var bodyParser = require('body-parser');
var app = express();
port = parseInt(process.env.PORT, 10) || 8080;
// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: true }));
// parse application/json
app.use(bodyParser.json());
app.listen(port);
app.post("/someRoute", function(req, res) {
console.log(req.body);
res.status(200).json({ status: 'SUCCESS' });
});
Does anyone have an example of an API response being passed back from a http.request() made to a 3rd party back to my clientSever and written out to a clients browser?
I keep getting stuck in what I'm sure is simple logic. I'm using express from reading the docs it doesn't seem to supply an abstraction for this.
Thanks
Note that the answer here is a little out of date-- You'll get a deprecated warning. The 2013 equivalent might be:
app.get('/log/goal', function(req, res){
var options = {
host : 'www.example.com',
path : '/api/action/param1/value1/param2/value2',
port : 80,
method : 'GET'
}
var request = http.request(options, function(response){
var body = ""
response.on('data', function(data) {
body += data;
});
response.on('end', function() {
res.send(JSON.parse(body));
});
});
request.on('error', function(e) {
console.log('Problem with request: ' + e.message);
});
request.end();
});
I would also recommend the request module if you're going to be writing a lot of these. It'll save you a lot of keystrokes in the long run!
Here is a quick example of accessing an external API in an express get function:
app.get('/log/goal', function(req, res){
//Setup your client
var client = http.createClient(80, 'http://[put the base url to the api here]');
//Setup the request by passing the parameters in the URL (REST API)
var request = client.request('GET', '/api/action/param1/value1/param2/value2', {"host":"[put base url here again]"});
request.addListener("response", function(response) { //Add listener to watch for the response
var body = "";
response.addListener("data", function(data) { //Add listener for the actual data
body += data; //Append all data coming from api to the body variable
});
response.addListener("end", function() { //When the response ends, do what you will with the data
var response = JSON.parse(body); //In this example, I am parsing a JSON response
});
});
request.end();
res.send(response); //Print the response to the screen
});
Hope that helps!
This example looks pretty similar to what you are trying to achieve (pure Node.js, no express):
http://blog.tredix.com/2011/03/partly-cloudy-nodejs-and-ifs.html
HTH