Im stuck!
I'm sending a POST request to a server via AXIOS from a VUE app.
Everything works and the server responds.
The problem is, that the .then method never gets called. How could that be?
Bonus question how are you doing your requests from VUE?
Many thanks
methods:{
customMethod1: function() {
//AXIOS
var config = {
headers: {'My Custom Header 1': 'Header-Value'}
};
//POST request
axios.post('http://192.168.56.101:5000/post1', {name: 'Dave'}, config)
.then(function(response){
alert("posted successfully");
});
},
}
Have you confirmed via a tool like Fiddler that the server actually sends a response? It could be that the server never actually responds.
I just found the solution, and I don't know if I should share it with the person who posted this question : he could at least answer to the others trying to help him.
As I find many answers here I post my solution (maybe not the correct answer but it works)
It's not a vue.js issue, nor axios, the .then statement is called only when you return something on server side.
Some code to explain :
Product.update(
{
productName: req.body.productName,
productDesc: req.body.productDesc,
productOwner: 0,
productImage: req.body.productImage,
productState: req.body.ProductState,
productPrice: req.body.ProductPrice
},
{
where: {
id: req.body.id
}
})
.then(function (item) {
console.log("Product update " + item.id);
res.send({id: item.id});
})
.catch(function (err) {
console.log("Product update error " + err);
});
the important line here is :
res.send({id: item.id});
If you return nothing at server side your .then at client side is not called.
let me know if it works but +1 me ;-)
Related
I tried looking for the solution in the forum but I was unable to find something similar to what I'm trying to achieve. I have a gateway script in an MPG which kinda looks like this:
session.INPUT.readAsJSON(function (error, json) {
if (error){
throw error;
} else {
var SAMLResponse = json['SAMLResponse'];
var RelayState = json['RelayState'];
var urlopen = require('urlopen');
var options = {
target: 'https://************.com/e32d32der2tj90g8h4',
method: 'POST',
headers: { 'HEADER_NAME' : 'VALUE'},
contentType: 'application/json',
timeout: 60,
sslClientProfile: 'ClientProfile',
data: {"SAMLResponse": SAMLResponse, "RelayState": RelayState}
};
urlopen.open(options, function(error, response) {
if (error) {
session.output.write("urlopen error: "+JSON.stringify(error));
} else {
var responseStatusCode = response.statusCode;
var responseReasonPhrase = response.reasonPhrase;
response.readAsBuffer(function(error, responseData){
if (error){
throw error;
} else {
session.output.write(responseData);
console.log(responseData);
}
});
}
});
}
});
I'm doing a POST request and the response I get from the urlopen function is an HTML page, how to I display the contents of that page in my browser? I need that to initiate a process flow. am I going in the wrong direction here? what's the best way to POST to a URI and display it's response in DataPower?
with regards to my experience with DataPower, I just started learning, So I might not be familiar with many of the concepts.
Thanks in Advance!
session.INPUT.readAsJSON() would indicate that you are receiving JSON data as the input (from the POST).
Since you are building this in a Multi-Protocol Gateway (MPGW) you need to set the Response type to non-xml if the response is HTML and if there is no backend call being made (other than the url-open()) you also must set the skip-backside=1 variable.
Is the scenario as:
JSON HTTP Request -> [MPGW] -> url-open() -> Backend server --|
HTTP Response <-----------------------------------------|
Or:
JSON HTTP Request -> [MPGW] -> url-open() --| (skip-backside)
HTTP Response <------------------------|
If there is no backend call I would recommend building this in a XML Firewall (XMLFW) service instead and set it to "loopback" and non-xml.
If there is a backend and that is where you are sending your HTML from the url-open() then only MPGW Response type needs to be set to non-xml.
If it is the second option the you can just set the payload and headers in GWS and just call the target (https://************.com/e32d32der2tj90g8h4) as teh MPGW backside connection, no need for the url-open().
So it's actually been on and off the past few days, the fetch function for POST method (for login purposes) on my app would suddenly stop working when I'm not even making any changes to the code.
I spent hrs tracking down the bug the first time this happened but realized that the code is still running fine on Android simulator that I run from Android studio.
This problem only happens on my iphone device when I run the code via expo.
is there any sort of convention on how to tackle this issue?
I've been googling for a few days now but no one forum actually agreed on a solution, some works but says it's unstable and some just doesn't work.
I'm pretty new to expo, react native, and everything in general, so please enlighten me using "english" lol
EDIT: since I was asked about the code, here it is, I hope it helps:
export function login(user, callback){
var endpoint = "oauth/token";
const { username, password } = user;
//from https://scotch.io/tutorials/how-to-encode-and-decode-strings-with-base64-in-javascript
var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",encode:function(e){var t="";var n,r,i,s,o,u,a;var f=0;e=Base64._utf8_encode(e);while(f<e.length){n=e.charCodeAt(f++);r=e.charCodeAt(f++);i=e.charCodeAt(f++);s=n>>2;o=(n&3)<<4|r>>4;u=(r&15)<<2|i>>6;a=i&63;if(isNaN(r)){u=a=64}else if(isNaN(i)){a=64}t=t+this._keyStr.charAt(s)+this._keyStr.charAt(o)+this._keyStr.charAt(u)+this._keyStr.charAt(a)}return t},decode:function(e){var t="";var n,r,i;var s,o,u,a;var f=0;e=e.replace(/[^A-Za-z0-9+/=]/g,"");while(f<e.length){s=this._keyStr.indexOf(e.charAt(f++));o=this._keyStr.indexOf(e.charAt(f++));u=this._keyStr.indexOf(e.charAt(f++));a=this._keyStr.indexOf(e.charAt(f++));n=s<<2|o>>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r)}if(a!=64){t=t+String.fromCharCode(i)}}t=Base64._utf8_decode(t);return t},_utf8_encode:function(e){e=e.replace(/\r\n/g,"\n");var t="";for(var n=0;n<e.length;n++){var r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r)}else if(r>127&&r<2048){t+=String.fromCharCode(r>>6|192);t+=String.fromCharCode(r&63|128)}else{t+=String.fromCharCode(r>>12|224);t+=String.fromCharCode(r>>6&63|128);t+=String.fromCharCode(r&63|128)}}return t},_utf8_decode:function(e){var t="";var n=0;var r=c1=c2=0;while(n<e.length){r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r);n++}else if(r>191&&r<224){c2=e.charCodeAt(n+1);t+=String.fromCharCode((r&31)<<6|c2&63);n+=2}else{c2=e.charCodeAt(n+1);c3=e.charCodeAt(n+2);t+=String.fromCharCode((r&15)<<12|(c2&63)<<6|c3&63);n+=3}}return t}};
let header = {
"Content-Type": "application/x-www-form-urlencoded",
"Authorization": ("Basic " + Base64.encode(username+":"+password))
};
let userData = {
"grant_type": "password",
"username": username,
"password": password
};
return fetchAPI(endpoint,'POST', header, userData)
.then((tokenJson) => {
alert("\nAccess Token:\n\n" + tokenJson.access_token + "");
callback(true, {exists : true, token : tokenJson.access_token}, null);
})
.catch((error) => {
alert(error);
callback(false, null, error);
});
}
And here's the fetchAPI function (a generic fetch function) called from that function:
export function fetchAPI(endpoint, method, header, data) {
let url = 'http://10.64.2.149:8081/' + endpoint;
let options = {
method: method,
headers: header,
body: stringify(data) //from qs-stringify package
};
return fetch(url, options)
.then(response => {
return response.json()
.then((json) => { ...//not relevant from this point on
The fetch 'POST' seems to always get stuck at response.json(), it just never resolves until it returns "network request failed". But as I said only happens sometimes when I run it on iphone via expo. It is fine on Android sim.
Thanks! :)
I have a list of people (first and last name) who I want to follow, but I don't want to Google or search them via Twitter separately. What is the best way to get the Twitter handles? Some GitHub repos or tutorials are also fine.
Twitter offers a "User Search" API request.
If you want to search for a user named "Ada Lovelace" you will need to send an OAuth'd request to
https://api.twitter.com/1.1/users/search.json?q=Ada%20Lovelace
You will get back a list of results. There may be many people who share the same first and last name.
As for how to do it, that rather depends on the programming language you want to use.
If you just want a clickable link, use https://twitter.com/search?q=Terence%20Eden
So firstly this question is off-topic but I will try write an answer for you. You could use the twitter api for this but that might be a little overkill if you just want to do this for you.
I made you an API
I made an API just for you using KimonoLabs. You can use this and just make a script that loops through your list and requests this api every time, then return a list of the results. Here is the API endpoint:
https://www.kimonolabs.com/api/duwxgie4?apikey=D6UKiTtKU93kv0YJj8i3kFBAbsIjdSTC&q=PERSON%20NAME
The &q= is the paramater for the person's name. To seperate the first and last name use %20, like so: Robert%20Keus
The documentation for this api is here:
https://www.kimonolabs.com/apis/duwxgie4
Let me know if you need any help,
Luca
Latest answer # 2016
First Solution: I wrote following node.js script. You need access_token and id of pulicly published google doc spreadsheet. For testing purpose I have provided sample spreadsheet's link and its id in following code.
var Twit = require('twit'),
async = require('async');
var T = new Twit({
consumer_key: 'xxxxxxxx',
consumer_secret: 'xxxxxxxxxxxxxxxxxxxxxxxxxx',
access_token: 'xxxxxxxxxxx',
access_token_secret: 'xxxxxxxxxxxxxxxxxxxxxxxxx',
timeout_ms: 60*1000 // optional HTTP request timeout to apply to all requests.
});
//https://docs.google.com/spreadsheets/d/1n7DxgJTTHZ9w3xwiHokUhXMLkBwpP5c9ZLFmsYFDCic/edit?usp=sharing
var GoogleSpreadsheet = require("google-spreadsheet"),
_ = require('underscore');
var sheetId = req.params.sheet || "1n7DxgJTTHZ9w3xwiHokUhXMLkBwpP5c9ZLFmsYFDCic",
sheet = new GoogleSpreadsheet(sheetId);
async.waterfall([
function (cb) {
sheet.getRows(1, {}, function (err, rows) {
if (err) { res.send(err); return;};
var names = [];
_.each(rows, function (row) {
names.push(row.first + " " + row.last);
});
cb(null, names);
});
},
function (names, callback1) {
async.map(names, function(name, cb){
T.get('users/search', { q: name, page: 1 }, function (err, data, response) {
if(data.length)
cb(null, {screen_name: data[0].screen_name, name:data[0].name});
else
cb(null, {screen_name: "no_data_retrieved", name: name});
});
}, function (err, results) {
callback1(null, results);
});
},
function (users, callback) {
console.log(users); //**YOU GET ALL DESIRED DATA HERE**
}
], function (err, result) {
//handle in memory data
});
Second Solution: Clone node-cheat twitter-screen-names, run npm install and shoot node server, Now get all twitter usernames as json in browser.
Happy Helping!
I'm developing iOS app using ionic framework and I have one problem when I try to call web service by using 3G network.
here is my service in UserService:
function getUserStat(user_id){
var request = $http({ method: "get",
url: "http://www.example.com/user.php",
params: {
action: "stat",
user_id:user_id
},
data: {
}
});
return(request.then(handleSuccess, handleError));
}
function handleError( response ) {
// The API response from the server should be returned in a
// nomralized format. However, if the request was not handled by the
// server (or what not handles properly - ex. server error), then we
// may have to normalize it on our end, as best we can.
if (!angular.isObject( response.data ) || !response.data.message) {
return( $q.reject("An unknown error occurred.") );
}
// Otherwise, use expected error message.
return( $q.reject( response.data.message ) );
}
// I transform the successful response, unwrapping the application data
// from the API response payload.
function handleSuccess( response ) {
return( response.data );
}
the getUserStat() function will return json back.
here is my controller
UserService.getUserStat($scope.user_id).then(function(data){
alert("Result: " + JSON.stringify(data));
});
in my control I just show the json.
I build this code to my iPhone and test it over WIFI network, everything work fine. If i update the serverside, UserService.getUserStat in controller will show update. but the problem is when I test it on 3G network, iPhone always show the old json returned from the server (even I change server side data).
any idea to solve this problem?
Thank you
I had a similar problem when I tried to upload a camera photo to my data server.when i tested the app on my local WIFI it worked perfectly but when I tested it outside i noticed it fails to upload the file. eventualy the problem was that since the internet outside is much slower the app moved to another view without finish the upload action.
so for example if your controller looks something like this:
.controller('Ctrl1', function(webService, $scope, $state) {
UserService.getUserStat($scope.user_id).then(function(data){
alert("Result: " + JSON.stringify(data));
});
$state.go('app.posts');
});
it should be like this:
.controller('Ctrl1', function(webService, $scope, $state) {
UserService.getUserStat($scope.user_id).then(function(data){
alert("Result: " + JSON.stringify(data));
})
.finally(function() {
$state.go('app.posts');
});
});
$http in my AngularJS project not able to recognize 40X(401,403,405...) errors on iOS.
I am using 1.2.10 AngularJS version and Cordova version 3.4.0.
Below is the code I am using:
TE_SERVICES.factory('hello',function ($http,$rootScope) {
return {
loginUser: function(userCredentials,successCallback,errorCallback){
$http({
method: "GET",
url: "data/example.json",
headers: {"Authorization":'Basic '+userCredentials},
}).then(function(response){
successCallback(response.data);
console.log("Success------"+JSON.stringify(response))
},function(data, status, headers, config){
errorCallback(data);
console.log("Error------"+JSON.stringify(data)+" "+status)
})
}
}
});
hello.loginUser($rootScope.encodedUserCredencials,function(persons) {
// success handler
}, function(data) {
// error handler
console.log(data.status+"===="+status)
});
data.status is returning 0 and status returns undefined.
Please help me to resolve this issue.
Tried to include the domain in whitelist on IOS.But no solution :( It still gives the same response.
But the same code works absolutely fine in Android.
Please help me to resolve this issue.
Thanks in advance :)
So you r using the $http from angular. Do you use the error callback or the second function in the then callback ?
Example
$http.get("someUrl")
.success(function(response){}) // if http code == 200
.error(function(response){}) // else
Or with then, that can take 2 functions. The first is the onSuccess, the second the onError function.
$http.get("someUrl")
.then(function(response){
// if http code == 200
},
function(response){
// else
});
The response parameter does also contain the error codes.
Consider using a $httpInterceptor to handle all errorcodes at the same place, instead handling them in every http callback.
UPDATE:
It seems, that the angular doc is incomplete/wrong for the success callback.
It doesnt pass 4 parameter there. It does pass a response object that contains all the information about request+response and the passed data.
Update to the edit:
Dont write callbacks by yourself. Use angular promises:
TE_SERVICES.factory('hello',function ($http,$rootScope) {
return {
loginUser: function(userCredentials){
return $http({
method: "GET",
url: "data/example.json",
headers: {"Authorization":'Basic '+userCredentials},
}).then(function(response){
return response.data;
},function(response){
return response;
});
}
}
});
hello.loginUser($rootScope.encodedUserCredencials)
.then(function(persons) { // success handler
}, function(data) { // error handler
console.log(data);
});
Try this and tell me if the console.log logs something.
I had exactly the same problem. Cordova app, angular js, IPhone and 401 requests are not received in angular js http interceptor. They work fine on android devices.
My finding was that IPhone browser is handling those at a higher lever and trying to use WWW-Authenticate information to do authentication. This is why the response does not get to angular.
The only solution I found, was to change my service to return 400 instead of 401 in case of an api request. In this case I return 400 with an error message that I handle on client side.
I hope this helps.
My issue with the 403 status code was that my backend returned a response with status 403 but the body of a response did not contain a JSON string. It contained just a string - Authentication Failed.
The rejection variable was an object Error.
I encoded the body and the rejection variable contains a valid response error object.
To handle HTTP errors I use interceptors.
$httpProvider.interceptors.push(function($q, $location, redirect, HTTP_CODES) {
return {
'responseError': function(rejection) {
if (rejection.status === HTTP_CODES.FORBIDDEN) {
redirect('/login', $location.url());
}
return $q.reject(rejection);
}
};
});