i want to call our wcf services from flutter with dart without configuration of any addition settings. It is possible to access directly to wcf service method? I didn't find any approach to this.There is no package to implement soap services or wcf services in flutter pub web page. I am waiting suggestions or approaches.
I have never used Flutter personaly, but I am going to borrow a few answers from SO to answer your question,
According to How to make HTTP POST request with url encoded body in flutter? , flutter should have the ability to create HttpPosts/gets
Future<HttpClientResponse> foo() async {
Map<String, dynamic> jsonMap = {
'homeTeam': {'team': 'Team A'},
'awayTeam': {'team': 'Team B'},
};
String jsonString = json.encode(jsonMap); // encode map to json
String paramName = 'param'; // give the post param a name
String formBody = paramName + '=' + Uri.encodeQueryComponent(jsonString);
List<int> bodyBytes = utf8.encode(formBody); // utf8 encode
HttpClientRequest request =
await _httpClient.post(_host, _port, '/a/b/c');
// it's polite to send the body length to the server
request.headers.set('Content-Length', bodyBytes.length.toString());
// todo add other headers here
request.add(bodyBytes);
return await request.close();
}
With the above Code taken from the linked post, now you can modify your WCF service a bit to now use REST instead of only SOAP,
then just send a simple HTTP Request to the service and you will get your intended response
You can check https://www.codeproject.com/Articles/571813/A-Beginners-Tutorial-on-Creating-WCF-REST-Services on how to get started with WCF Rest
Related
I've built many Logic Apps. I've also integrated with the Logic App API. For some reason, a Post request to an Asp.net Core Web API won't work. It works in Postman, but I can't get Logic Apps to complete the request.
The request arrives at my Web API. I can step through it during a remote debug session. I'm using the [FromBody] decorator on the API method. All the string values in the object are null.
Logic App Headers
Accept = "application/json"
ContentType = "application/json"
ContentLength = "35"
Host = "****.centralus.logic.azure.com"
API method
[HttpPost]
[Route("CreateSomething")]
public async Task<IActionResult> CreateSomething([FromBody] MyObject object)
{
//Create something great
}
I think it might have something to do with the Headers. I noticed that the Postman request won't succeed unless I check the Host and Content-Length box in the Headers section. According to this article, Logic Apps ignores those Headers.
https://learn.microsoft.com/en-us/azure/connectors/connectors-native-http
I've built the HTTP Post Action using the API as well as configured it manually using the Logic App UI in Azure.
By the way, does anyone know the Expression that will automatically calculate the ContentLength?
UPDATE:
I finally figured this out. I had to do some Ninja coding crap to make this work. I'll post my solution tomorrow.
Does anyone know how to make this work? Thanks in advance!
When you use the Logic App API to programmatically create Logic Apps, you have to specify the Body class for when you do something like an HTTP Post. When the Body JSON displayed in the designer, it contained a single object with the objects properties. My API method could not handle this. The key was to simply post the properties in the JSON Body. To make matters worse, I'm doing two HTTP Posts in this particular Logic App. When I tried to add my object properties to the existing Body class, it caused my other HTTP Post to stop working. To overcome this, I had to create a Body2 class with the objects properties. I then had to use the following line of code to replace body2 with body before adding the JSON to the Logic App API call.
This did not work.
body = new Body()
{
object = new Object()
{
//Properties
}
}
This worked.
body2 = new Body2()
{
Type = 0,
Description = "#{items('For_each_2')?['day']?['description']}",
Locations = item.Locations,
Cold = "#{items('For_each_2')?['temperature']?['cold']?['value']}",
Hot = "#{items('For_each_2')?['temperature']?['hot']?['value']}",
Hide = 0
}
Notice I used Replace on body2.
var options = new JsonSerializerOptions { WriteIndented = true, IgnoreNullValues = true};
string jsonString = ReplaceFirst(JsonSerializer.Serialize(myApp, options), "schema", "$schema").Replace("_else", "else").Replace("_foreach", "foreach").Replace("body2", "body");
So I am currently working on making SOAP API request to a service with WCF generated code "Client object", I am wondering how to set the Cookie header to the request?
In general, we add the custom HTTP header by using HttpRequestMessageProperty. Please refer to the below code.
ServiceReference1.ServiceClient client = new ServiceReference1.ServiceClient();
try
{
using (OperationContextScope ocs=new OperationContextScope(client.InnerChannel))
{
var requestProp = new HttpRequestMessageProperty();
requestProp.Headers["myhttpheader"] = "Boom";
OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = requestProp;
var result = client.SayHelloAsync();
Console.WriteLine(result.Result);
}
Result.
WebOperationContext is a convenience wrapper around the OperationContext. At present, it hasn’t been implemented yet in the Aspnet Core.
https://github.com/dotnet/wcf/issues/2686
Feel free to let me know if there is anything I can help with.
I have an API that I have deployed to Azure.
This API has a number of Actions. I would like to be able to add these Actions to my API and configure them in a client app that uses the API
Could anybody provide some guidance on this please?
What do you mean here. You have an API and want to configure them in a client app? Do you you mean you want to call the API in your Client App?
In this case, assuming your API is REST, you can use HttpClient and use the PostAsyc(), PutAsync(), DeleteAsync, GetAsync() methods with the url and httpcontent you API requires to sent.
var httpClient = new HttpClient
{
BaseAddress = new Uri("...")
};
var response = await httpClient.GetAsync($"api/....");
if (response.IsSuccessStatusCode)
{
...
]
Sander
I use this simple way to attach username and password to the SOAP request header. This works fine inside Java boundaries, but I want to be able to call it with my WCF client. How do I do this?
I've tried the following code, but it does not include the credentials in the header:
wsClient.ClientCredentials.UserName.UserName = "Hello";
wsClient.ClientCredentials.UserName.Password = "World";
Thanks in advance!
That is quite awful non-standardized way. It uses custom HTTP Headers so you cannot expect that built in WCF mechanism will magically support such approach. How should WCF know that you want to add custom non-standard HTTP header to HTTP request (not SOAP header)?
Use this:
var proxy = new YourServiceClient();
using (var scope = new OperationContextScope(proxy.InnerChannel))
{
var prop = new HttpRequestMessageProperty();
prop.Headers.Add("UserName", "Hello");
prop.Headers.Add("Password", "World");
OperationContext context = OperationContext.Current;
context.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = prop;
proxy.CallYourOperation();
}
I am writing a Grails app, and I want the controller to hit some other API with a POST and then use the response to generate the page my user sees. I am not able to Google the right terms to find anything about posting to another page and receiving the response with Grails. Links to tutorials or answers like "Thats called..." would me much appreciated.
Seems like you are integrating with some sort of RESTful web service. There is REST client plugin, linked here.
Alternatively, its quite easy to do this without a plugin, linked here.
I highly recommend letting your controller just be a controller. Abstract your interface with this outside service into some class like OtherApiService or some sort of utility. Keep all the code that communicates with this outside service in one place; that way you can mock your integration component and make testing everywhere else easy. If you do this as a service, you have room to expand, say in the case you want to start storing some data from the API in your own app.
Anyway, cutting and posting from the linked documentation (the second link), the following shows how to send a GET to an API and how to set up handlers for success and failures, as well as dealing with request headers and query params -- this should have everything you need.
#Grab(group='org.codehaus.groovy.modules.http-builder', module='http-builder', version='0.5.0-RC2' )
import groovyx.net.http.*
import static groovyx.net.http.ContentType.*
import static groovyx.net.http.Method.*
def http = new HTTPBuilder( 'http://ajax.googleapis.com' )
// perform a GET request, expecting JSON response data
http.request( GET, JSON ) {
uri.path = '/ajax/services/search/web'
uri.query = [ v:'1.0', q: 'Calvin and Hobbes' ]
headers.'User-Agent' = 'Mozilla/5.0 Ubuntu/8.10 Firefox/3.0.4'
// response handler for a success response code:
response.success = { resp, json ->
println resp.statusLine
// parse the JSON response object:
json.responseData.results.each {
println " ${it.titleNoFormatting} : ${it.visibleUrl}"
}
}
// handler for any failure status code:
response.failure = { resp ->
println "Unexpected error: ${resp.statusLine.statusCode} : ${resp.statusLine.reasonPhrase}"
}
}
You might also want to check out this, for some nifty tricks. Is has an example with a POST method.