So I am using a Third-party API called graphhopper API.
First I used fetch() to call the API and it works but when I use the Axios I get a CORS error.
// THIS WORKS OKAY :)
const response = await fetch(`${graphHopperUrl}/optimize?key=${graphHopperApiKey}`, {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(problem)
})
// DOESN'T WORK :(
const response = await this.$axios.post(
`${graphHopperUrl}/optimize?key=${graphHopperApiKey}`,
problem,
)
Related
I'm trying to fetch an image resource that's part of a conversation message.
I've tried both FETCH as well as using AXIOS but I'm getting the same error message.
Here's an example of my FETCH request
const token = `${accountSid}:${authToken}`;
const encodedToken = Buffer.from(token).toString('base64');
let response = await fetch('https://mcs.us1.twilio.com/v1/Services/<SERVICE_SID>/Media/<MEDIA_SID>',
{
method:'GET',
headers: {
'Authorization': `Basic ${encodedToken}`,
}
});
let data = await response.json();
console.log(data);
And here's what Axios looked like
let config = {
method: 'get',
crossdomain: true,
url: 'https://mcs.us1.twilio.com/v1/Services/<SERVICE_SID>/Media/<MEDIA_SID>',
headers: {
'Authorization': `Basic ${encodedToken}`,
},
};
try {
const media = await axios(config);
console.dir(media);
} catch(err) {
console.error(err);
}
Both ways are NOT working.
After looking into it more, I found out that Chrome makes a pre-flight request and as part of that requests the allowed headers from the server.
The response that came back was this
as you can see, in the "Response Headers" I don't see the Access-Control-Allow-Headers which should have been set to Authorization
What am I missing here?
I have made sure that my id/password as well as the URL i'm using are fine. In fact, I've ran this request through POSTMAN on my local machine and that returned the results just fine. The issue is ONLY happening when I do it in my code and run it in the browser.
I figured it out.
I don't have to make an http call to get the URL. It can be retrieved by simply
media.getContentTemporaryUrl();
When I register a service account for the Vision API Product Search there's a json file downloaded into my desktop that has the private key. However, when making a request into this api there's no place to send that JSON. I'll show you the documentation and my code.
I didn't understand also what is the curl request and how to send it using the http post request.
And This is my code:
Future<void> uploadProductSet() async {
var projectId = 'estoOne';
var locationId = 'europe-west1';
var url = 'https://vision.googleapis.com/v1/projects/$projectId/locations/$locationId/productSets';
final responseOne = await http
.post(Uri.parse(url),
body: json.encode({
'displayName': 'Product-Set-One',
}))
.catchError((error) {
throw error;
});
print(resoinseOne.body);
}
You have to send your access token with the Authorization header.
The API seems to use the Bearer authentication method.
So set the following header in your http request: Bearer $authToken
You should get the auth-token from the credentials file you've downloaded
So your code should look something like this: (untested)
await http.post(Uri.parse(url),
headers: { 'Authorization': 'Bearer $authToken' },
body: json.encode({
'displayName': 'Product-Set-One',
})).catchError((error) {
throw error
})
I am using http client for flutter network call.
My request working on postman getting response properly,
But while trying with http.post it returns error code 307-Temporary Redirect,
Method Body:
static Future<http.Response> httpPost(
Map postParam, String serviceURL) async {
Map tempParam = {"id": "username", "pwd": "password"};
var param = json.encode(tempParam);
serviceURL = "http:xxxx/Login/Login";
// temp check
Map<String, String> headers = {
'Content-Type': 'application/json',
'cache-control': 'no-cache',
};
await http.post(serviceURL, headers: headers, body: param).then((response) {
return response;
});
}
Also, the same code returns a proper response to other requests and URLs.
First I trying with chopper client but had same issue.
I am unable to detect that issue from my end of from server-side.
Any help/hint will be helpful
Try to put a slash / at the end of the serviceUrl. So, serviceUrl is serviceURL = "http:xxxx/Login/Login/" instead of serviceURL = "http:xxxx/Login/Login".
This works for me.
You need to find a way to follow redirect.
Maybe postman is doing that.
Read this >>
https://api.flutter.dev/flutter/dart-io/HttpClientRequest/followRedirects.html
Can you try with using get instead of post? At least to try and see what happend
In the documentation said:
Automatic redirect will only happen for "GET" and "HEAD" requests
only for the status codes
HttpStatus.movedPermanently (301),
HttpStatus.found (302),
HttpStatus.movedTemporarily (302, alias for HttpStatus.found),
HttpStatus.seeOther (303),
HttpStatus.temporaryRedirect (307)
keeping https instead of http in the URL it is helping me.
#Abel's answer above is correct but I had to switch from using:
Uri url = Uri.https(defaultUri, path);
to
Uri url = Uri.parse('https://todo-fastapi-flutter.herokuapp.com/plan/');
to get that last / after plan.
The first way kept dropping it so I was getting 307 errors.
flutter.dev shows a full example:
Future<http.Response> createAlbum(String title) {
return http.post(
Uri.parse('https://jsonplaceholder.typicode.com/albums'),
headers: <String, String>{
'Content-Type': 'application/json; charset=UTF-8',
},
body: jsonEncode(<String, String>{
'title': title,
}),
);
}
here: https://flutter.dev/docs/cookbook/networking/send-data#2-sending-data-to-server
For Dio Http Client, use Dio Option follow redirect as True
getDioOption(){
return BaseOptions(connectTimeout: 30, receiveTimeout: 30,
followRedirects: true);
}
I'm currently building out an Angular 7 App, and trying to implement the following HTTP API Call Scenario:
Request for an Application Token:
https://(URL)/token
Request Type: POST
Headers:
Accept: application/json
Request Body: empty
I have a Service class in the Angular app and the code is as follows:
import { HttpClient } from '#angular/common/http';
import { HttpHeaders } from '#angular/common/http';
The requestToken function is implemented as follows:
requestToken() {
let headers = new HttpHeaders();
headers = headers.set('Accept', 'application/json');
return this.http.post(this.configUrl + '/token', headers);
}
The Service is then called in one of the components in the App:-
getToken() {
this.service.requestToken().subscribe( res => {
console.log(res);
}, error => {
console.log(error);
});
}
When I run the App, I get a 404 Not Found error in the console. I used Postman to make an API call, setting the 'Accept' header to 'application/json' and then specifying url as https://(URL)/token and I successfully get a response. But I'm unable to make it work via Angular.
Is there something else I need to do to set the header properly in Angular? Also, I have no way to check if CORS has been enabled on the API server as this is a third-party service which I'm trying to call.
Any help would be appreciated. Thanks
Solved the problem. Changed the POST call to the following:
requestToken() {
const httpHeaders = new HttpHeaders({
'Accept': 'application/json'
});
return this.http.post(this.configUrl + '/token', { body: ''}, { headers: httpHeaders });
}
Had to add an empty 'body' parameter
I am trying to access the Uber API with Axios and I am running into some trouble. I have plugged this data into Postman and I get a 200 response code with no problems. However, when I try to make an Axios call, I get response code 401 unauthorized. Can I get some help looking through my code to find out why my authorization is not working correctly with Axios?
Here is a link to the Uber API docs I am referencing. Uber API Reference
getRide_Uber = async (addressOrigin, addressDestination) => {
let origin = await geocodeAddress(addressOrigin);
let destination = await geocodeAddress(addressDestination);
const url = "https://api.uber.com/v1.2/estimates/price";
const params = {
params: {
start_latitude: origin.lat,
start_longitude: origin.lon,
end_latitude: destination.lat,
end_longitude: destination.lon
}
};
const headers = {
headers: {
Authorization: `Token ${process.env.UBER_SERVER_TOKEN}`
}
};
const response = await axios
.get(url, params, headers)
.then(function(response) {
data = response.data;
})
.catch(function(error) {
console.log(error);
});
return data;
};
Please let me know if anything needs clarification. Thanks!
try below syntax,
const config = {
headers: {
Authorization: `Token ${process.env.UBER_SERVER_TOKEN}`
}
params: {
start_latitude: origin.lat,
start_longitude: origin.lon,
end_latitude: destination.lat,
end_longitude: destination.lon
}
};
const response = await axios
.get(url, config)
.then(function(response) {
data = response.data;
})
.catch(function(error) {
console.log(error);
});
return data;
There is one more aspect axios, async/await is not supported in Internet Explorer and older browsers. So also please check your browser versions as well.
Not sure how are you getting token from env but seems the server token is not getting pass correctly, may be few extra characters while reading from env. Try to run the program first with hard coded token in program itself and once you are sure its not code issue, you can move it into config/env and then debug env read issue.