I use http.delete for remove my data.
This code in my service [MyService]:
deleteData(id){
let headers = new Headers(),authtoken = localStorage.getItem('token');
headers.append("Authorization", 'Bearer' + authtoken);
headers.append('X-Requested-With', 'XMLHttpRequest')
headers.append('Content-Type', 'application/json;')
return this.http.delete('http://link/'+id, { headers: headers })
.map((resp:Response)=>resp.json())
.catch((error:any) =>{return Observable.throw(error);});
}
This code in my component:
private delete(id):void{
console.log(id); //show`s id
this.myService.deleteData(id)
.subscribe((data) => {console.log(data)});
}
Show`s error "caused by: A network error occurred". My mistake was elsewhere. It is work.
There is nothing wrong in your code what i can see and you are not getting any error from server either. Try to call the same end point from postman and match the headers and check your Internet connection.
Related
I am trying to fetch local api made in asp.net api which is running in https://localhost:44388/. When I tried to fetch get request it responds ok but return html not json. The problem might occur by two reasons:
1.typo in url (But I checked in my browser, it worked)
2.Server restart needed
What might be the problem with my code?
componentDidMount(){
var proxyUrl = "http://127.0.0.1:3000/";
var targetUrl = "https://127.0.0.1:44388/api/product/getproducts";
fetch(proxyUrl+targetUrl, {
method:'GET',
headers:{
'Access-Control-Allow-Origin':'*',
'Access-Control-Allow-Mehods': '*',
'Access-Control-Allow-Headers': '*',
'Access-Control-Allow-Credentials':'*',
'Content-type':'application/json'
}
})
.then(data=>{
if(!data.ok){
throw new Error("Error");
}else{
return data.json();
}
})
.then(data=>this.setState({products:data}))
}
when you give parameter as:proxyUrl+targetUrl,
actually the url which you have called is :
http://127.0.0.1:3000/https://127.0.0.1:44388/api/product/getproducts
which does not seems to be correct.
i think the structure of url you'v given to fetch function is wrong.
While doing the POST request in Angular 2, I am getting:
"EXCEPTION: Response with status: 404 Not Found for URL:" .
However, while accessing the URL directly, I am getting the response page.
Also in my backend code, I can see my data getting passed from client side to server side:
Response_body: "{"Message":"Not able to add Language = A"}"
headers: Headersok: false
status: 404
statusText: "Not Found"
type: 2
url: "http://localhost:1109/api/Language/AddLanguage"
onSubmit(val){
console.log(val);
this.languageService.testPost(val)
.subscribe(
(res:response) => console.log(res);
);
}
testPost(newVal) : Observable<any>{
let body = JSON.stringify(newVal);
console.log(body);
let headers = new Headers({'Content-Type' : 'application/json'});
let options = new RequestOptions({headers : headers});
return this.http.post(this.logUrl,body,options)
.map((res : Response) => res.json());
}
Yes Rachit,I think you are correct.While Debugging,In my Server side Code I found an Exception mentioning Too many Arguments while saving Data To Database.
There's the culprit I believe, this error generally occurs if you supply more than required params to an SP. So in your DB implementation if you are using SP(s) kindly check them one by one which one is supplying extra parameters. And if nothing else is the problem you should have this issue resolved.
I'm trying to access this cookies (the response ones):
When I open the request in the chrome debug tools in the network section I can clearly see that the cookies are present, but how can I access those values from my code? I've never worked with cookies before and I don't know what to do to "extract" them... I'm working on a Ionic2 project using Http.
I've read that the allowCredentials: true header has to be sent but that didn't work...
Here's the request/response details:
Here's the service:
public callLogin(service_guid: string, pos_guid: string, login_data: Object) {
return this.http.post(
this.url + service_guid + "/" + pos_guid + "/ack",
login_data,
{withCredentials: true}
)
.map(response => response.headers);
}
And the caller:
this.__posService.callLogin(login_data.service_guid, login_data.pos_guid, {"password": data.password})
.subscribe(
res => {
console.log("Success:");
console.log(res.get("apsession"); // this returns undefined
},
err => {
console.log("Error:");
}
);
When I try to access the cookie from the header it returns undefined. What am I doing wrong here?
The name of the response header you are trying to get is actually Set-Cookie not apsession. So if you did something like res.get("set-cookie") it would return the first header that matched that name. Since you have more than 1, you could do:
let headers: Headers = res.headers;
headers.getAll('set-cookie');
which returns a list of all headers with that name. You could find apsession in there probably.
See:
https://angular.io/docs/ts/latest/api/http/index/Headers-class.html
https://developer.mozilla.org/en-US/docs/Web/API/Response/headers
https://developer.mozilla.org/en-US/docs/Web/API/Headers
I have a form in googlescript where I can add a user to a sheet.
Is there a way to implement some lines in that code so the script adds a post on a wordpress page?
I read that it's possible via wp_insert_post , but I have no idea how that works in my case.
EDIT:
As Spencer suggested I tried to do it via WP REST API.
The following code seems to be working .............
function httpPostTemplate() {
// URL for target web API
var url = 'http://example.de/wp-json/wp/v2/posts';
// For POST method, API parameters will be sent in the
// HTTP message payload.
// Start with an object containing name / value tuples.
var apiParams = {
// Relevant parameters would go here
'param1' : 'value1',
'param2' : 'value2' // etc.
};
// All 'application/json' content goes as a JSON string.
var payload = JSON.stringify(apiParams);
// Construct `fetch` params object
var params = {
'method': 'POST',
'contentType': 'application/json',
'payload': payload,
'muteHttpExceptions' : true
};
var response = UrlFetchApp.fetch(url, params)
// Check return code embedded in response.
var rc = response.getResponseCode();
var responseText = response.getContentText();
if (rc !== 200) {
// Log HTTP Error
Logger.log("Response (%s) %s",
rc,
responseText );
// Could throw an exception yourself, if appropriate
}
else {
// Successful POST, handle response normally
Logger.log( responseText );
}
}
But I get the error:
[16-09-28 21:24:29:475 CEST] Response (401.0)
{"code":"rest_cannot_create","message":"Sorry, you are not allowed to
create new posts.","data":{"status":401}}
Means: I have to authenticate first.
I installed the plugin: WP REST API - OAuth 1.0a Server
I setup a new user and got a client key and client user.
But from here I have no clue what to do : /
It is possible. Wordpress has a REST API. I can be found at:
http://v2.wp-api.org/
You will use the UrlFetchApp Service to access this api. Documentation can be found at:
https://developers.google.com/apps-script/reference/url-fetch/url-fetch-app
Read the docs and try to write some code. It you get stuck post the code that is confusing you here and I'll update this answer.
You should add you authentification in the header :
var headers = {
... ,
'Authorization' : 'Basic ' + Utilities.base64Encode('USERNAME:PASSWORD'),
};
And then add your header in your parameters :
var params = {
'method': 'POST',
'headers': headers,
'payload': JSON.stringify(payload),
'muteHttpExceptions': true
}
And then use UrlfetchApp.fetch
var response = UrlFetchApp.fetch("https://.../wp-json/wp/v2/posts/", params)
Logger.log(response);
You need to pass the basic auth, like this:
// Construct `fetch` params object
var params = {
'method': 'POST',
'contentType': 'application/json',
'payload': payload,
'muteHttpExceptions' : true,
"headers" : {
"Authorization" : "Basic " + Utilities.base64Encode(username + ":" + password)+"",
"cache-control": "no-cache"
}
};
thank you for giving me these important links.
<3
I installed WP REST API and the OAuth plugin.
In the documentation is written:
Once you have WP API and the OAuth server plugins activated on your
server, you’ll need to create a “client”. This is an identifier for
the application, and includes a “key” and “secret”, both needed to
link to your site.
I couldn't find out how to setup a client?
In my GoogleScriptCode according to the WP API I get the error:
{"code":"rest_cannot_create","message":"Sorry, you are not allowed to create new posts.","data":{"status":401}}
Edit: I found it - it's under User/Application
I'll try to figure it out and get back to you later.
I cannot interecept error from http post
a part of my mservice (http post method)
addApplicationLink(applicationLink: ApplicationLink){
let body = JSON.stringify(applicationLink);
let requestHeaders = new Headers();
var headers = new Headers();
headers.set('Content-Type', ['application/json; charset=utf-8']);
let reqoptions = new RequestOptions({
headers: headers
});
return this._http.post(this._applicationLinksUrl + this._linkServicePath,body,{headers: headers});
in my component :
addApplicationLink() {
//todo
this.addNewLink = false;
/* check if must be done after call real rest service */
//this.applicationLinks.push(this.applicationLinkAdd);
this._applicationLinkService.addApplicationLink(this.applicationLinkAdd)
.subscribe(data => {
this.applicationLinks.push(this.applicationLinkAdd)
},
error => {
// handle error
console.error('this an erreor ' + error.status)
}
)
When user tries to add two same applicationlinks , the backend returns an error 409
But when I execute , error.status displays 200 in browser console
I see also in browser console
XMLHttpRequest cannot load http://localhost:7001...... No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:3000' is therefore not allowed access. The response had HTTP status code 409.
rem : Http post is made with json , thus there is a prefligth call
Have you an idea to intercept error 409 ?
In fact, your server doesn't send back the CORS header (Access-Control-Allow-Origin' header is missing). This prevent the browser from providing the actual 409 error to the Angular2 application within the browser.
You need to fix first the problem on the server and you will be able to see this 409 error.
For more details about how CORS works, you could have a look at this article:
http://restlet.com/blog/2015/12/15/understanding-and-using-cors/