public static IAsyncReactiveQbservable <TSource> DoHttpPost <TSource>(
this IAsyncReactiveQbservable <TSource> source,
Expression <Func <TSource, Uri> > getUri,
Expression <Func <TSource, string> > getBody,
Expression <Func <TSource, Tuple <string, string>[]> > getHeaders = null)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (getUri == null)
{
throw new ArgumentNullException(nameof(getUri));
}
if (getBody == null)
{
throw new ArgumentNullException(nameof(getBody));
}
var item = Expression.Parameter(typeof(TSource));
var bindings = new List <MemberBinding>
{
Expression.Bind(typeof(HttpPost).GetProperty("Uri"), getUri.Apply(item)),
Expression.Bind(typeof(HttpPost).GetProperty("Body"), getBody.Apply(item))
};
if (getHeaders != null)
{
bindings.Add(Expression.Bind(typeof(HttpPost).GetProperty("Headers"), getHeaders.Apply(item)));
}
var newHttpPost = Expression.MemberInit(
Expression.New(typeof(HttpPost)),
bindings);
var poster = source.Provider.CreateQbserver <HttpPost>(Expression.Parameter(
typeof(IAsyncReactiveQbserver <HttpPost>),
Constants.Observer.Action.HttpPost.String));
#pragma warning disable IDE0034 // Simplify 'default' expression (documents the signature)
var callOnNext = Expression.Call(
poster.Expression,
(MethodInfo)ReflectionHelpers.InfoOf((IAsyncReactiveQbserver <HttpPost> iv) => iv.OnNextAsync(default(HttpPost), default(CancellationToken))),
newHttpPost,
Expression.Default(typeof(CancellationToken)));
#pragma warning restore IDE0034 // Simplify 'default' expression
var onNext = Expression.Lambda <Action <TSource> >(callOnNext, item);
return(source.Do(onNext));
}
public static IAsyncReactiveQbservable <TSource> DoHttp <TSource>(
this IAsyncReactiveQbservable <TSource> source,
Expression <Func <TSource, string> > getMethod,
Expression <Func <TSource, Uri> > getOnNext,
Expression <Func <TSource, string> > getBody,
Expression <Func <TSource, Tuple <string, string>[]> > getHeaders,
Expression <Func <TSource, RetryData> > getRetryData,
Expression <Func <TSource, TimeSpan> > getTimeout)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (getMethod == null)
{
throw new ArgumentNullException(nameof(getMethod));
}
if (getOnNext == null)
{
throw new ArgumentNullException(nameof(getOnNext));
}
if (getBody == null)
{
throw new ArgumentNullException(nameof(getBody));
}
if (getHeaders == null)
{
throw new ArgumentNullException(nameof(getHeaders));
}
if (getRetryData == null)
{
throw new ArgumentNullException(nameof(getRetryData));
}
if (getTimeout == null)
{
throw new ArgumentNullException(nameof(getTimeout));
}
Expression <Func <string, string, Tuple <string, string>[], Uri, RetryData, TimeSpan, HttpData> > newHttpDataTemplate = (body, method, headers, onNext, retryData, timeout) => new HttpData
{
Body = body,
Method = method,
Headers = headers,
OnNext = onNext,
RetryData = retryData,
Timeout = timeout,
};
var item = Expression.Parameter(typeof(TSource));
var newHttpData = BetaReducer.Reduce(Expression.Invoke(newHttpDataTemplate,
getBody.Apply(item),
getMethod.Apply(item),
getHeaders.Apply(item),
getOnNext.Apply(item),
getRetryData.Apply(item),
getTimeout.Apply(item)), BetaReductionNodeTypes.Unrestricted, BetaReductionRestrictions.ExactlyOnce);
var getHttpData = Expression.Lambda <Func <TSource, HttpData> >(newHttpData, item);
var poster = source.Provider.CreateQbserver <HttpData>(Expression.Parameter(
typeof(IAsyncReactiveQbserver <HttpData>),
Constants.Observer.Action.Http.String));
return(source.Do(getHttpData, poster));
}
