Splitting the string by few delimeter-CodePudding

I have a string with me and I want to call a rest method from that string. Can anyone think of a better approach then the one I described below for converting str to Rest Call Url.

str : https://P1.P2.com/ProjectName/_build?definitionId=123
Extract P1 and ProjectName and definitionId

Rest Call : https://dev.azure.com/P1/ProjectName/_apis/pipelines/123/runs?api-version=6.0-preview.1

Here, after getting the string, split it with "//" and then split array[1] with "/" and then get P1, ProjectName and then find something with "=" and then the number ?

Not sure if this might be ok.

Update : I can get this as a URI. But how to convert it then ?

CodePudding user response：

First off, use Uri to parse out the host, path, and query parts of the URI:

var uri = new Uri("https://P1.P2.com/ProjectName/_build?definitionId=123");

For extracting P1 from the host, it's probably going to be easiest to split on .:

string subdomain = uri.Host.Split('.')[0]

For ProjectName, just look at uri.Segments:

string projectName = uri.Segments[1];

For definitionId, parse the query string with HttpUtility.ParseQueryString:

var query = HttpUtility.ParseQueryString(uri.Query);
string definitionId = query["definitionId"];

To construct the new Uri, use a UriBuilder:

var builder = new UriBuilder()
{
    Scheme = "https",
    Host = "dev.azure.com",
    Path = $"{subdomain}/{projectName}_apis/pipelines/{definitionId}/runs",
    Query = "api-version=6.0-preview.1",
};
string result = builder.ToString();

See it on dotnetfiddle.net