'(Flutter) HTTPClient Invalid argument(s): No host specified in URI

Currently working on a little app that allows users to view a database stored on Heroku, however I am running into the aforementioned issue when using the database's URL: ".herokuapp.com/api/".

var client = createHttpClient();
var response = await client.read('<example>.herokuapp.com/api/<data>');
List data = JSON.decode(response);

Heroku doesn't seem to use HTTP(S) nor www, the latter of which I believe to be the issue.

Does anyone know how I can bypass or resolve this issue?

Solution 1:^[1]

I know this is an old problem but I just stumbled into this problem and fixed it by adding an "http://" before the URL.

Solution 2:^[2]

One of the problem is not having "http://" before your API URL;

SOLUTION Add "http://" before your API URL example API_URL = "api.openweathermap.org/data/2.5/weather?q={city%20name}&appid={your%20api%20key}"

By adding "http://" it becomes "http://api.openweathermap.org/data/2.5/weather?q={city%20name}&appid={your%20api%20key}"

Solution 3:^[3]

If you still get this issue in latest versions of flutter, try to check the following things.

Previously uri was in String type. Now its in Uri type for the http requests.

If we try to use the url as

String urlPath = '<example>.herokuapp.com/api/<data>';
client.read(Uri(path: urlPath));

We will get the exception as No host specified in URI

This can be solved by using parse method in Uri class

client.read(Uri.parse(urlPath));

It solves the issue.

Solution 4:^[4]

This works for me

child: CircleAvatar(
      backgroundImage: imageFile != null
          ? FileImage(imageFile)
          : imgUrl.isNotEmpty
              ? NetworkImage(imgUrl)
              : null,),

Solution 5:^[5]

This has worked for me
CachedNetworkImage(imageUrl: 'https://example.com/'+item['image'],),

Solution 6:^[6]

Problem may occur if you are accessing the imageUrl from Api. It takes sometime to load and if you leave the Url space empty in null situation this problem may arise.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Ravindra S. Patil
Solution 2	eclat_soft
Solution 3	Sankar Arumugam
Solution 4	Kaushal Kishore
Solution 5	Kenneth kipngok kipruyot
Solution 6	Kiran Stha

'(Flutter) HTTPClient Invalid argument(s): No host specified in URI

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

Solution 4:[4]

Solution 5:[5]

Solution 6:[6]