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Need to call Two APIs In Loop using node js

I have an array of ssn number and I have two api list in which I need to pass ssn number as request json so I need to call both api inside ssn loop so I pass ssn to json request during call both api but code is not work properly both api call at a time simulteniously, Where I need to call both api one by one.
Both API details and code are as follow
My Code:
let ssn = [460458524, 637625452, 453311896, 635285187, 455791630, 642348377, 463590491, 450730278, 641201851, 379965491];
async function getCRCDetails() {
ssn.forEach(function (item) {
if(item){
let CBCOptions = {
'method': 'POST',
'url': 'https://loanboard.houstondirectauto.com/api/Report',
'headers': {
'Content-Type': 'application/json',
'Cookie': 'ci_session=udmojmlc5tfl3epbrmtvgu6nao2f031p'
},
body: JSON.stringify({
"token": loantoken,
"action": "CBCReport",
"variables": {
ssn: item
}
})
}
request(CBCOptions, function (error, response) {
console.log(item);
console.log("CBCOPtion ", CBCOptions);
if (error) throw new Error(error);
result = (JSON.parse(response.body));
console.log("Result =", result);
CRCReport.push(result);
})
let EmployerInfoOptions = {
'method': 'POST',
'url': 'https://loanboard.houstondirectauto.com/api/Report',
'headers': {
'Content-Type': 'application/json',
'Cookie': 'ci_session=udmojmlc5tfl3epbrmtvgu6nao2f031p'
},
body: JSON.stringify({
"token": loantoken,
"action": "getEmployerInfo",
"variables": {
ssn: item
}
})
}
request(EmployerInfoOptions, function (error, response) {
console.log(response.body);
})
}
Here I need to call API request one by one.Anyone Guide me please.

I prefer use async await method for this situation
you need install and require async and request-promise
after that :
const request = require("request-promise");
const async = require("async");
let ssn = [460458524, 637625452, 453311896, 635285187, 455791630, 642348377, 463590491, 450730278, 641201851, 379965491];
async function getCRCDetails() {
//like a forEache
async.eachSeries(ssn, async (item) => {
let CBCOptions = {
method: "POST",
url: "https://loanboard.houstondirectauto.com/api/Report",
headers: {
"Content-Type": "application/json",
Cookie: "ci_session=udmojmlc5tfl3epbrmtvgu6nao2f031p",
},
body: JSON.stringify({
token: loantoken,
action: "CBCReport",
variables: {
ssn: item,
},
}),
};
let EmployerInfoOptions = {
method: "POST",
url: "https://loanboard.houstondirectauto.com/api/Report",
headers: {
"Content-Type": "application/json",
Cookie: "ci_session=udmojmlc5tfl3epbrmtvgu6nao2f031p",
},
body: JSON.stringify({
token: loantoken,
action: "getEmployerInfo",
variables: {
ssn: item,
},
}),
};
try {
let resultCBCOptions = await request(CBCOptions);
let EmployerInfoOptions = await request(EmployerInfoOptions);
console.log(resultCBCOptions)
console.log(EmployerInfoOptions)
//do pushing resultCBCOptions
//do pushing EmployerInfoOptions
} catch (error) {
console.log(error);
}
},
() => {
console.log("finished");
}
);
}

In Node the request methods that you are using are asynchronous. Meaning the runner (server) that runs the code does not wait for the request to finish and just continues to execute the next lines.
One thing that you can do is,
request.post(params).on("response", function(response) {
//....Do stuff with your data you recieve
// Make the next call here
request.post(params).on("response"), function() {
// Here you will have the second call's results
}
})
This ensures that both the API calls happen in order and only after the first one finishes.
Note:
The request library that you are using has been deprecated back in 2020. See https://github.com/request/request Hence, I would suggest you use other libraries like the standard https or http library that is shipped with node or you can use axios.

If you use a forEach loop without awaiting the results, you'll execute them all at the same time. Moreover, request library is kind of old and you need to convert its functions to return a promise.
Here's how I would do it.
const ssn = [1,2,3,4];
function download(item) {
return new Promise(function(resolve, reject) {
let options = {}; // construct your request
request(options, function (error, response) {
if(error) {
return reject(error);
}
resolve(response);
})
}
}
ssn = ssn.map(async function(item) {
let res = await download(item);
// process the result
return res;
});
You can also use the Bluebird library or get another client library such as got or axios.

Getting response, body and error from an asynchronous method making a POST API call

I am using this example to make a POST API call to an API: https://nodejs.dev/making-http-requests-with-nodejs#perform-a-post-request. No issues there, it works well.
Next, I wanted to create a function that makes this API call by taking in dynamic connection parameters, headers and payload. Did that and I am able to return the response object from the function so I can detect the response.statusCode, response.statusMessage, etc. Here's my Node.js code:
Module Code
const https = require("https");
function postLendingApplication(connection, data, callback) {
const options = {
hostname: connection.hostname,
port: connection.port,
path: connection.path,
method: connection.method,
headers: connection.headers
};
//console.log(options)
const req = https.request(options, res => {
console.log(`statusCode: ${res.statusCode}`);
res.on("data", d => {
process.stdout.write(d);
});
callback(res);
});
req.on("error", error => {
console.error(error);
});
req.write(data);
req.end();
}
exports.postLendingApplication = postLendingApplication;
Invoking the code from another file
const bpc = require("./public-api");
const data = JSON.stringify({
title: 'foo',
body: 'bar',
userId: 1
});
const connection = {
hostname: 'jsonplaceholder.typicode.com',
port: 443,
path: '/posts',
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Content-Length': data.length,
}
}
var response = bpc.postLendingApplication(connection, data, function(response) {
console.log("Inside the calling function");
//console.log(response);
console.log("Status Code: " + response.statusCode);
console.log("Status Message: " + response.statusMessage);
});
Successful console response
statusCode: 201
Inside the calling function
Status Code: 201
Status Message: Created
{
"title": "foo",
"body": "bar",
"userId": 1,
"id": 101
}
Question: In my callback method, I would like to receive the response body (The JSON) as well as the error so I can run some assertions based on the response/body/error that I received. I am not able to figure out how to setup callback in the module method so it can return all 3 values. If you can please help out with that, it would be greatly appreciated.
Here's the Repl URL in case you'd like to take a stab at it online: https://repl.it/#varun_verma/POST-API

I am not 100% on the question you are asking, I personally if you are wanting to use callbacks in this way use two functions one to handle the error and one for the succsessful response
however, you can use object destruction to give you undefined or default it to null if you like for the item not passed back as shown below:
Module Code
const https = require("https");
function postLendingApplication(connection, data, callback) {
const options = {
hostname: connection.hostname,
port: connection.port,
path: connection.path,
method: connection.method,
headers: connection.headers
};
//console.log(options)
const req = https.request(options, res => {
console.log(`statusCode: ${res.statusCode}`);
let data = ''
res.on("data", d => {
data += d;
});
res.on('end', () => {
callback({response: res, data});
});
});
req.on("error", error => {
console.error(error);
callback({response: res, error});
});
req.write(data);
req.end();
}
exports.postLendingApplication = postLendingApplication;
Invoking the code from another file
const bpc = require("./public-api");
const data = JSON.stringify({
title: 'foo',
body: 'bar',
userId: 1
});
const connection = {
hostname: 'jsonplaceholder.typicode.com',
port: 443,
path: '/posts',
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Content-Length': data.length,
}
}
var response = bpc.postLendingApplication(connection, data, function({ response, data, error}) {
// if error is not passed back in the object it defaults to undefined
if (error) console.error(error)
console.log("Inside the calling function");
//console.log(response);
console.log("Status Code: " + response.statusCode);
console.log("Status Message: " + response.statusMessage);
});

If I understand your question correctly, you want to have the response, data, and the error passed to the callback. (where you currently only pass the response)
You can pass the data to the callback like so:
const req = https.request(options, res => {
console.log(`statusCode: ${res.statusCode}`);
let data = '';
res.on("data", d => {
data += d;
});
res.on('end', () => {
callback(res, data);
});
});
This buffers the data from the response as it comes in into a string and then only when the response ends passes both the response object and the data as a string to the callback. (you can then use JSON.parse in the callback to convert the data string to an object)
Passing the error is more difficult as the error callback is given separately from the response. I would recommend having a separate callback for the error:
function postLendingApplication(connection, data, callback, error_callback) {
...
req.on("error", error => {
console.error(error);
error_callback(error);
});
...
}
However someone else on here may be able to give a better solution for the error.

request(...).then is not a function error when making a POST request

I'm trying to create a firebase function that makes a HTTP POST request whenever a new document is created.
This is my code:
import * as functions from 'firebase-functions';
const admin = require('firebase-admin');
const request = require("request");
exports.sendMessage = functions.firestore.document('comms/{comms}').onCreate((snap, context) => {
const newValue = snap.data();
if (newValue) {
//const email = newValue.email;
const msg = newValue.msg;
return request({
uri: "url",
method: 'POST',
body: msg,
json: true,
resolveWithFullResponse: true
}).then((response: { statusCode: number; }) => {
if (response.statusCode >= 400) {
throw new Error(`HTTP Error: ${response.statusCode}`);
}
console.log('SUCCESS! Posted', msg);
});
}
return Promise
});
Error received:
TypeError: request(...).then is not a function
at exports.sendMessage.functions.firestore.document.onCreate (/srv/lib/index.js:25:12)
at cloudFunction (/srv/node_modules/firebase-functions/lib/cloud-functions.js:127:23)
at /worker/worker.js:825:24
at
at process._tickDomainCallback (internal/process/next_tick.js:229:7)

request supports callback interfaces natively but does not return a promise, which is what you must do within a Cloud Function.
This is explained in the official Firebase video series here: https://firebase.google.com/docs/functions/video-series/. In particular watch the three videos titled "Learn JavaScript Promises" (Parts 2 & 3 especially focus on background triggered Cloud Functions, but it really worth watching Part 1 before).
You could use request-promise (https://github.com/request/request-promise) and the rp() method which "returns a regular Promises/A+ compliant promise". You would then adapt your code as follows:
import * as functions from 'firebase-functions';
const admin = require('firebase-admin');
const rp = require('request-promise');
exports.sendMessage = functions.firestore.document('comms/{comms}').onCreate((snap, context) => {
const newValue = snap.data();
if (newValue) {
const msg = newValue.msg;
var options = {
method: 'POST',
uri: '....',
body: msg,
json: true // Automatically stringifies the body to JSON
};
return rp(options)
.then(parsedBody => {
// POST succeeded...
console.log('SUCCESS! Posted', msg);
return null;
})
.catch(err => {
// POST failed...
console.log(err);
return null;
});
} else {
return null;
}
});

request module doesn't return a Promise instead try using a callback function for response.
return request({
uri: "url",
method: 'POST',
body: msg,
json: true,
resolveWithFullResponse: true
}, function (error, response, body) {
})

As in the documentation already mention you need to pass the callback to your request
var request = require('request');
request('http://www.google.com', function (error, response, body) {
console.log('error:', error); // Print the error if one occurred
console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
console.log('body:', body); // Print the HTML for the Google homepage.
});
If you want to chain your request you can use pipe
request
.get('url/img.png')
.on('response', function(response) {
console.log(response.statusCode) // 200
console.log(response.headers['content-type']) // 'image/png'
})
.pipe(request.put('url'))
If you want to use promise you can use request-promise
var rp = require('request-promise');
rp('http://www.google.com')
.then(function (htmlString) {
// Process html...
})
.catch(function (err) {
// Crawling failed...
});

The request module work on callbacks only, If you want to make Promisify you need to do like this
const request = require('request');
const webService = {};
webService.callApi = (url, bodyObj, method) => {
return new Promise((resolve, reject) => {
const options = {
method: method || 'POST',
url: url,
headers: {
'Content-Type': 'application/json',
},
body: bodyObj,
json: true,
};
// Error Handler
const errorMessge = { code: 500, error: 'INTERNAL_SERVER_ERROR' };
request(options, (error, response, resBody) => {
if (error) {
return reject(errorMessge);
} else if (response.statusCode !== 200) {
return reject(errorMessge);
}
return resolve(resBody);
});
});
};
module.exports = webService;

how to pass value in api body in protractor while requesting the api

I want to pass the value in API request body.
I tried below code for that
var options = { method: 'POST',
url: 'https://ssgpreprod.serviceurl.in/gonogo-api/atm/tw/cro-approval',
headers:
{ 'Postman-Token': '9d6a0ad1-c3a1-402f-b845-b6416f49df6b',
'cache-control': 'no-cache',
'Content-Type': 'application/json' },
body:
{ oHeader:
{ sReqType: 'application/json',
sAppSource: 'WEB 2.02.01',
sSourceID: 'GONOGO_HDBFS',
sAppID: 610961419000670,
dtSubmit: '',
sCroId: 'HDB_TW_CRO#cell.com',
sDsaId: 'default',
sInstID: 4019,
sUserName: 'CHDBTWCRO',
sProduct: 'TW',
sDealerId: '61096' },
sRefID:testData.twPreIpa.twReferenceId,
sAppStat: testData.twCroDetails.twCroDecision,
aCroJustification: [ { sRemark: testData.twCroDetails.twRemark, sSubTo: testData.twCroDetails.twSubjectTo} ],
bApprAmtExist: true,
dApprAmt: testData.twApplyDetails.twLoanAmount,
dItrRt: testData.twCroDetails.twRoi,
dLtv: testData.twCroDetails.twLtv,
aDedupeRefID: [] },
json: true };
request(options, function (error, response, body) {
if (error) throw new Error(error);
browser.logger.info(JSON.stringify(body));
browser.logger.info(JSON.stringify(response));
browser.logger.info('status code is : ' + response.statusCode);
expect(response.statusCode).toBe(200).then(function () {
browser.logger.info('case is approved');
this.logOut(testData);
})
});
I am passing value from xlsx file i.e testData.twPreIpa.twReferenceId but I am getting 422 status code and below output
[2019-05-28 15:42:10.403] [INFO] : - {"title":"Conversion Failed","status":422,"detail":"The content you've sent is probably malformed."}
Also, when I add - browser.logger.info('approved'); above var options it prints on console.. but when I add - browser.logger.info(testData.twPreIpa.twReferenceId);
It gives me error .. ouput displayed -
Failed: Cannot read property 'twReferenceId' of undefined
TypeError: Cannot read property 'twReferenceId' of undefined

While this may not directly answer your question it should be helpful to you.
I worked on a similar framework to what (I assume) yours looks like,some api and some UI validations.
I had a separate class for my API calls which returned some value, sometimes the entire response body. I allowed myself the ability to pass in whatever body I needed as a parameter.
This is an example of the approach I took.
module.exports = class Endpoints {
addSomethingToUser(bearerToken, userId, JSONbody) {
//Function will preform a POST request and return the status code if successful
//Else if will return the body of the response
let endpoint = 'http://myApp.com:9090/api/users/' + userId;
return new Promise((resolve, reject) => {
let options = {
method: "POST",
headers: {
'Content-Type': 'application/json',
'Authorization': 'Bearer ' + token,
},
body: JSON.stringify(JSONbody),
};
request(
endpoint,
options ,
function (error, response, body) {
if (!error && (response.statusCode >= 200 && response.statusCode < 300)) {
resolve(response.statusCode);
} else {
console.log('error:', error, response && response.statusCode);
reject(JSON.stringify(response, undefined, 2));
};
}
);
});
};
}
It is called like
let apiCallsFile = require('../apiCalls/restCalls');
let apiCalls = new apiCallsFile();
it('simple test', async function(){
let requiredBody = {
"NAME": "Test Name",
"GENDER": "MALE",
};
let apiResult = await apiCalls.addSomethingToUser(bearerToken, userId, requiredBody );
expect(apiResult).toBe('201');
}
Your issue seems to be related to the actual values you are using from excel. You should attempt to print out your values before attempting to send the request to ensure they are all present and in the format you expect.

node.js variables from a module

I cannot figure out how to get a variable from a node.js module. I'm creating a module that will interface with an authentication mechanism, and currently it only returns a token. I need this token in the main.js, as I will be calling other modules, and passing this token for authentication.
//auth.js
var request = require("request");
var authModule = {};
var authToken = "";
var options = {
method: 'POST',
url: 'https://dummy.url/oauth/token',
headers: {
'authorization': 'Basic secretkeystring',
'accept': 'application/json',
'content-type': 'application/x-www-form-urlencoded'
},
form: {
grant_type: 'password',
username: 'indegomontoya',
password: 'sixfingeredman'
}
};
authModule.getToken = function getToken(){
request(options, requestToken);
};
function requestToken (error, response, body) {
if (error) throw new Error(error);
authToken = response.body.toString().split('\n')[1].split(":")[1].split('"')[1];
console.log("auth.js says: " + authToken);
// ^^ this works, and spits out the correct token to the console
return authToken;
};
module.exports = authModule;
module.exports.token = authToken;
And here is my main.js:
//main.js
var auth = require("./auth.js");
var token;
token = auth.getToken();
console.log("main.js says :"+ token);
// ^^ comes back undefined
I've seen examples of sending a variable from main.js to module.js, but I need to do the opposite. Any help is greatly appreciated!
EDIT: typo in code.

Try passing a hash instead.
module.exports = {
module: authModule,
token: authToken
}
var gcdm = require("./gcdm.js");
gcdm.module();
gcdm.token;

It appears that the request module (from here), is asynchronous in nature, meaning that it can take any length of time to return its data. This means that you may need to use a callback when using the getToken method.
Currently, your main.js app does not give suffiecient time for the auth.js module to fetch the token data. It requests the token and then in the same breath (or tick of the processor) it tries to print it to the console. To get around this problem, you need to utilise callbacks.
I would probably adjust your two auth module methods like so:
authModule.getToken = function getToken(callback){
request(options, function(error, response, body){
if (error) throw new Error(error);
callback( requestToken(body) );
});
};
function requestToken (body) {
authToken = response.body.toString().split('\n')[1].split(":")[1].split('"')[1];
return authToken;
};
Also, remove this uneeded line, as your callback will be the delivery mechanism back to your main app:
module.exports.token = authToken; // remove this
You would then use something like this to get the token in your main app:
gcdm.getToken( function (token) {
console.log('main.js says :' + token);
});
You may want to look a bit more into Asynchronous Programming in JavaScript. It's a key ingredient in the NodeJS toolbox.

#shennan thank you very much! You were right on track, and you are correct, request is async. I'm fairly new to node.js, so thanks for bearing with me, and am still trying to wrap my head around callbacks. (thanks #Drazisil for your link to callbackhell.com)
Your answers got me int he right direction, and I ended up with this:
//auth.js
var request = require("request");
var authModule = function () {};
var authToken = "";
var options = {
method: 'POST',
url: 'https://dummy.url/oauth/token',
headers: {
'authorization': 'Basic secretkeystring',
'accept': 'application/json',
'content-type': 'application/x-www-form-urlencoded'
},
form: {
grant_type: 'password',
username: 'indegomontoya',
password: 'sixfingeredman'
}
};
authModule.getToken = function getToken(callback){
request(options, function(error, response, body){
if (error) throw new Error(error);
authToken = response.body;
callback( requestToken(body) );
});
};
function requestToken (body) {
return authToken;
};
module.exports = authModule;
And:
//main.js
var auth = require("./auth.js");
var authTokenData;
function parseAuthJson(data) {
var jsonData = JSON.parse(data);
return jsonData;
}
auth.getToken( function (authTokenData) {
var jsonData = parseAuthJson(authTokenData);
console.log(jsonData.access_token);
});
I gathered help about parsing the JSON here.
Thanks for your help!