I have Installed elasticsearch-6.3.1 in windows & try to filter the data by using following code in angular 1,it gives CORS error
$http({
url: 'http://localhost:9200/empinfo/employeedetails/_search',
method: "POST",
data: "{ 'query': { 'query_string': { 'query': 'Sujit','fields':['name'] } } }",
headers: { 'Content-Type': 'application/json' }
}).success(function (data, status, headers, config) {
console.log(data);
}).error(function (data, status, headers, config) {
});
My Elastic search error in angular.js
Although I have added Allow CORS in elasticsearch.yml file.
Please help me.
You need to uncomment the lines in your yml file.
Simply remove '#' from the beginning of each line. Restart your Elasticsearch.
Related
I have a service that builds a csv file, and returns it to the user. Currently using expressjs v4.14, nodejs v8.7.0. My problem is that I get a download failed due to 'network error' in chrome when I call the service for it to create a large csv file. With smaller files, the service works fine. I can also browse to the /temp/ folder, and the entire expected file exists. In each case of 'things i tried', I was able to download smaller files but not the large ones.
Service:
download.post('/csv', (req, res, next) => {
res.status(200).header('Content-Type', 'text/csv');
const newUUID = uuid.v1();
let ws: WriteStream = fs.createWriteStream(`${__dirname}/../../temp/${newUUID}.csv`);
ws.on('finish', () => {
res.download(`${__dirname}/../../temp/${newUUID}.csv`);
});
//csv file built here
ws.write('huge stuff easily 50k rows and 10 mb file');
ws.end();
});
Chrome Error:
Chrome's network tab and developer console do not give me any indication of what happened. This download popup is all I get. I cleared everything in cookies/cache just in case and it did not help.
Things I tried:
writing chunks directly to response stream.
using readable stream https://nodejs.org/api/stream.html#stream_readable_streams , converting String into bytes and piping it.
creating a file locally (writestream) and streaming it back (readstream pipe into res)
res.download(file) after writestream creating local file ended
Update:
Ended up trying the service from postman and it worked, so I think it is an angularjs issue.
Angularjs
$http({
cache: false,
url: "/download/csv",
headers: {
'accept': 'text/csv'
},
method: 'POST',
data: {
rows: rows,
title: title ? title : ''
}
}).success(function (data, status, headers, config) {
var anchor = angular.element('<a/>');
anchor.attr({
href: 'data:attachment/csv;charset=utf-8,' + encodeURI(data),
target: '_blank',
download: 'csv_info.csv'
})[0].click();
}).error(function (data, status, headers, config) {
});
Turned out to be a limitation from href attribute from the anchor tag created in angularjs. This was solved using FileSaver:
$http({
cache: false,
url: "/download/csv",
headers: {
'accept': 'text/csv'
},
method: 'POST',
data: {
rows: rows,
title: title ? title : ''
}
}).success(function (data, status, headers, config) {
var file = new File([data], "info.csv", {type: "text/csv;charset=utf-8"});
saveAs(file);
}).error(function (data, status, headers, config) {
});
I've got a simple node.js backend build on Restify with OAuth2 authorization (restify-oauth2 plugin).
I've got a problem requesting a token. When I call POST method with my REST client, everything works correctly and I get access_token and token_type.
The problem occurs when I try to do the same thing in my frontend aplication made in Angular.
Here's my code:
var req = {
method: 'POST',
url: 'http://localhost:8080/token',
headers: headers,
data: {},
params: {grant_type: "client_credentials"}
};
$http(req).success(function(data, status, headers, config){
console.log('success');
}).error(function(data, status, headers, config){
console.log('error');
});
So as you can see, grant_type parameter is provided. But still the server responds with:
{"error":"invalid_request","error_description":"Must specify grant_type field."}
And here's devtools screenshot:
How do I need to change my request to make it work?
I finally solved it. The thing is that grant_type field must be passed inside a request body, not in the parameters.
Working request code:
var req = {
method: 'POST',
url: 'http://localhost:8080/token',
headers: headers,
data: "grant_type=client_credentials"
};
$http(req).success(function(data, status, headers, config){
console.log('success');
}).error(function(data, status, headers, config){
console.log('error');
});
I'm using rs/cors in my Go API to allow my Angularjs app to make direct requests. I've added the following code to configure CORS:
crs := cors.New(cors.Options{AllowCredentials: true})
n.Use(crs) //Negroni include
but I'm getting the No 'Access-Control-Allow-Origin' header is present on the requested resource message in the browser when I make a request.
My request looks like this:
var req = {
method: 'POST',
url: endPoint + version + method,
headers: {
'Authorization': 'Basic ' + btoa(':' + appId)
},
data: params
}
$http(req).
success(function(data, status, headers, config) {
callback(null, data);
}).
error(function(data, status, headers, config) {
callback(data);
});
How can I get round this?
Fixed it! I noticed that a few different headers were being sent with the request and I had to explicitly allow all of them.
AllowedHeaders: []string{"accept", "authorization", "content-type"}
I hope this helps someone.
Currently I'm working with paypal API and flowing with this document make your first call.
When I sent a request through angular $http to paypal, I got a Status Code 415. It's seems like I missed something, does anyone can help me? :)
here is my code
$http({
url: 'https://api.sandbox.paypal.com/v1/oauth2/token',
method: 'POST',
headers: {'Content-Type': 'application/json',
'auth-token': 'EOJ2S-Z6OoN_le_KS1d75wsZ6y0SFdVsY9183IvxFyZp EClusMEUk8e9ihI7ZdVLF5cZ6y0SFdVsY9183IvxFyZp',
'Accept-Language': 'en_US'
},
data: { 'grant_type': 'client_credentials' }
}).success(function (data, status, headers, config) {
console.log(data)
}).error(function (data, status, headers, config) {
console.log(data)
});
Referring to the Paypal doc
Tip: If you're using Windows, we recommend you make cURL calls using a
Bash shell. If you're not using cURL calls, set the content-type to
application/x-www-form-urlencoded for this request.
Try set the content_type as application/x-www-form-urlencoded
i am tyring to get google api token by sendding auth code to google following this guide.
this is my code:
$http({
method: 'POST',
url: 'https://accounts.google.com/o/oauth2/token',
headers: {'Content-Type': 'application/x-www-form-urlencoded'},
params : {
code : '4/heMv6ozWwCxS5RyTzCgThAgxvRyk.oske-bNEGOUTOl05ti8ZT3YnwwH8iQI',
client_id : GoogleAppInfo.clientId,
redirect_uri : GoogleAppInfo.redirect_uri,
client_secret : GoogleAppInfo.client_secret,
grant_type : 'authorization_code'
}
}).
success(function(data, status, headers, config) {
alert('secsses');
}).
error(function(data, status, headers, config) {
alert('error');
});
the reuqest sended but the header is not set!
has anyone know what is the problem?
From: Angular, content type is not being sent with $http
"You need to include a body with the request. Angular removes the content-type header otherwise.
Add data: '' to the argument to $http."