I use WCF and have a method like this:
[OperationContract]
[WebInvoke(Method = "GET", UriTemplate = "LoadProducts/{key}/{price}")]
XmlDocument LoadProducts(string key, string price= null);
price is string, inside LoadProducts I will try to parse it from string to double and do my other operations.
But in url, I can not get request any parameter for price like '24.25', '0.253' etc. It does not allow any value with dot.
localhost:13448/RestService.svc/LoadProducts/null/41.145
I get error "Please review the following URL and make sure that it is spelled correctly. "
How can I solve this?
Dots already have a meaning in a URL, they separate the target hostname, IP address or in the path they separate the resources from its extension. You will need to URL encode your request URL.
In .NET there is a method called UrlEncode to help you encode URLs. It is:
string url = "http://localhost/MyService/MyKey/24.25";
string encodedUrl = HttpUtility.UrlEncode(url);
Check out the MSN documentation for UrlEncode for more details.
I solved my issue. I switched server from Visual Studio Development Server to Local IIS Web Server, url took dot symbol inside parameter.
Related
I use firebase dynamic links which contain an URL to our webapp.
If the dynamic link is opened, the deep link is fetched.
So far so good. As we use the /#/path pattern in our webapp to redirect a user to different sections, we have a problem now, creating such an url in our iOS application after we have to append a new parameter in the url
If this example URL is in our dynamic link
https://domain/#/main/page?utm_source=app&utm_medium=button&utm_campaign=testcampaign
i get it and have to append a parameter for autologin mechanism in our webapp.
So here is the point where i fail at two different approaches.
Getting the string from the url and appending the token parameter and value.
This approach works fine until I have to parse the urlString back to an URL object. The /#/ inside causes an error when creating a new URL object.
I try to replace /#/ with /%23/ (encoded #), but this does not work on our ngnix / webapp infrastructure.
Appending the token parameter with new URLQueryItem in URLComponents.
This approach leads to a wrong URL resulting in (token is the added parameter)
https://my-stage.bikersos.com/?token=tokrenvalue#/main/premium?utm_source=app&utm_medium=button&utm_campaign=testcampaign
I append the URL Query Item with this extension
extension URL {
func addQueryParams(newParams: [URLQueryItem]) -> URL? {
let urlComponents = NSURLComponents.init(url: self, resolvingAgainstBaseURL: false)
guard urlComponents != nil else { return nil; }
if (urlComponents?.queryItems == nil) {
urlComponents!.queryItems = []
}
urlComponents!.queryItems!.append(contentsOf: newParams)
print(urlComponents!)
return urlComponents?.url
}
}
does anybody has an idea how I could solve this problem? I personally prefer the second approach, if it is possible to append the parameters at the end
I figured it out how it has to be done with firebase and utm parameters (this link can be added as deep link in a dynamic link for firebase)
https://example.domain.com/?utm_source=newsletter&utm_medium=button&utm_campaign=testcampaign#/path1/subpath?webappparam1=1&webappparam2=asdf
This way all utm parameters are applied and the path will be available in the web application too.
You can add new query params using the iOS SDK but be aware, they are added at the utm parameters location.
If you need to add them at the end, check if there already exists an ? in the path and write your own appending at the end of the url.
I have developed a REST API using feathers.js (https://feathersjs.com/).
When trying to do a HTTP 'read' request in Flutter using package:http/http.dart I have encountered an error. The http.dart library is unable to correctly parse the query params I pass to the URI.
The error I receive through the Android Studio debug console is ;
FormatException: Invalid character (at character 84) E/flutter
(11338): ...lk.com/weatherobs?last=true&location[$in]=Bellambi&location[$in]=Nowra ....
The error is indicating the square brackets and possibly the $ sign ('[$in]' ) are the issue.
_getDemoRequest() {
String url = r"http://demoapi.ap-southeast-2.elasticbeanstalk.com/weatherobs?last=true&location[$in]=Bellambi&location[$in]=Nowra&location[$in]=Sydney Airport&location[$in]=Thredbo Top Station&location[$in]=Hobart&location[$in]=Coolangatta";
http.read(url).then(print);
}
In the URL I have tried prefixing the String with and without 'r' for a raw string to no avail.
I have also tried using httpClient with params with no success and the exact same error on the square brackets eg '[$in]'
String httpbaseUri = "http://xxxx.ap-southeast-2.elasticbeanstalk.com";
String qParams = r"?last=true&location[$in]=Bellambi&location[$in]=Nowra";
String path = "/weatherobs";
var _uri = new Uri.http(baseUri, path, qParams);
await httpClient.read(_uri, headers: {"Accept": "application/json"});
As a person with approximately 3 weeks of Flutter/Dart experience I believe its an elementary problem, but one in which several hours of research has uncovered no solution.
The ways the URI query parameters are structured (with the square brackets ie [$in]) are dictated by the feathers.js framework.
Any help would be appreciated.
It has been brought to my attention in another thread https://stackoverflow.com/questions/40568/are-square-brackets-permitted-in-urls :
That the URL Specification RFC 3986 generally does not permit square brackets in an URL.
My question was triggered as the get request works as intended in Postman, Chrome Browser and also javascript applications using axios.js, but not in an application developed in Flutter/Dart using standard http.read methods.
It doesn't look like [] are supported in the URL (except for the host IP for IPv6). See Are square brackets permitted in URLs?.
Please check if the API accepts them when they are encoded like:
void main() {
var url = r'http://demoapi.ap-southeast-2.elasticbeanstalk.com/weatherobs';
var locationKey = Uri.encodeQueryComponent(r'location[$in]');
var qParams = 'last=true&$locationKey=Bellambi&$locationKey=Nowra&$locationKey=Sydney Airport&$locationKey=Thredbo Top Station&$locationKey=Hobart&$locationKey=Coolangatta';
try {
print(Uri.parse(url).replace(query: qParams));
} catch(e) {
print(e);
}
}
DartPad example
See also api.dartlang.org/stable/1.24.3/dart-core/Uri/…
You can use this flutter package which allow you to communicate with your feathers js server from flutter app as said in: https://stackoverflow.com/a/65538226/12461921
Initially I tried to get the source of the URL and and extract the values which I was looking for the URL as given below
Dim URL = http://www.google.com
Dim oHTTP : Set oHTTP = CreateObject("MSXML2.ServerXMLHTTP.6.0")
oHTTP.setproxy 2,"<Proxy server:Port>"
oHTTP.Open "GET", URL, False
oHTTP.Send
And since the values which I am looking in the URL are proxy specific. And the values vary based the proxy server name which give explicitily as mentioned the above snippet.
I realised that giving proxy server name explicitlly is not the right approach since PAC file are used. Giving the proxy name only lists down the servers under that name.
So I thought opening a URL from browser such that it takes the PAC details in account and then draw out the neccessry values from there.
And opening a URL from the default browser is achieved as given below, I wanted to know is there a way extract the values from the browser.
CreateObject("WScript.Shell").Run("http://www.google.com")
I need to make sure that a URL that the user inputs goes where it should go. I mean if the user inputs "http://google.com/blablabla" or "http://google123.com/blablabla". I need to figure out that the second url is not correct because it won't open google's web-site. Is there some method in Swift to do that? Or do I just need to check if the URL contains "http://google.com"?
1. Malformed URL
To verify whether or not the URL itself is malformed, let the OS do it:
(check that the URL has all the parts it needs, namely a scheme and a host)
if let url = URL(string: rawStringInput),
let _ = url.scheme,
let _ = url.host {
// rawStringInput is well formed
}
You can then query all sorts of information from the URL, such as scheme (http), the host (google.com), the path (blablabla), fragment, port and so on.
2. Valid URL
If you want to know whether or not the URL is reachable (i.e. the remote server responds to it), you actually need to execute the request.
Below I have this code:
string _strTemplate = _strDownloadTemplate + IDReq + "/" + _strFileName;
Uri url = new Uri(_strTemplate);
As you can see, I'm converting the strTemplate (which carries the link of a page that I need to sent by email for the user) to a URL Format. My email body has several fields that I'm replacing with the correct value:
strMailMessage = strMailMessage.Replace("_LinkTemplate", url);
I'm getting an error because the method string.Replace takes strings as parameters only.
Is there a way to get around this?
I was thinking about pass the URL value through my page (page.aspx) but if there's a way to do so through this method, it would be better for me.
Thanks!
Assuming this is C# and .NET, yes, String.Replace() works with strings.
Did you try:
strMailMessage = strMailMessage.Replace("_LinkTemplate", url.ToString());