scala-dispatch

问题 The last version of the library dispatch.databinder.net is 0.9.5, according to the website. What is the correct mvn dependency? <dependency> <groupId>net.databinder.dispatch</groupId> <artifactId>core_2.10</artifactId> <version>0.9.1</version> </dependency> or <dependency> <groupId>net.databinder.dispatch</groupId> <artifactId>dispatch-core_2.10</artifactId> <version>0.9.5</version> </dependency> or something else? and how to find out this in general? 回答1: Since the website says

问题 From the client-side of a webapp, I hit a server-side route which is just a wrapper for a third-party API. Using dispatch, I am trying to make that server-side request return the exact header and response of the third-party API to the client-side AJAX call. When I do this: val req = host("third-pary.api.com, 80) val post = req.as("user", "pass") / "route" << Map("key" -> "akey", "val" -> "aval") Http(post > as.String) I always see a 200 response returned to the AJAX call (kind of expectedly).

问题 I am using Scala dispatch HTTP library, version 0.10.1. I make a request to a URL that returns an HTTP 301, permanent redirect. For example, http://wikipedia.com returns a 301 that redirects to http://www.wikipedia.org/. How do I do I use dispatch to get the redirected URL? Following the tutorial, here's what I've done. import dispatch._, Defaults._ val svc = url("http://wikipedia.com") val r = Http(svc OK as.String) r() This throws a "Unexpected response status: 301" exception. Presumably I

问题 I am attempting to use Scala dispatch but been both a Scala neewbie and the face that Dispatch api is symbol crazy Im confused on how I can stream a large http response and process it line by line. Any help would be appreciated. Cheers, Chris. Note: This isn't working for me: Http(url(Config.publisherUrl) > as.stream.Lines(line => println(line))) The lines are never printed. Edit: The lines were being printed, but only when there was more than one line in the response. The issue seems to be

问题 I've been using the Databinder Dispatch library in a client for a simple REST-ish API. I know how to detect if I get an HTTP response with an error status: Http x (request) { case (200, _, _, content) => successResult(content()) case (404, _, _, _) => notFoundErrorResult case (_, _, _, _) => genericErrorResult } But how can I distinguish an error response from a failure to get any response at all, because of an invalid domain or failure to connect? And is there any way to implement a timeout

问题 At Where to put dispatch.Http.shutdown() I asked where to place the call to dispatch.Http.shutdown() if there are n independent Http calls. Those n independent calls, however, are all on the same "level". How about cascading Http calls , whereas outer1 and outer2 are independent of each other (like in my former question), the inner calls, however, depend on the result of the respective outer call. val outer1 = dispatch.Http(... request1 ...) val outer2 = dispatch.Http(... request2 ...) outer1

问题 I am trying to execute a Simple GET request with Scala Dispatch, however I am erroring out with a 404 error. Unexpected response status: 404 Here is a example that works: https://www.google.com/finance/info?infotype=infoquoteall&q=tsla,goog But am I amunsure of where my error is in my code import dispatch._ , Defaults._ object Main extends App { //concats a the proper uri together to send to google finance def composeUri ( l:List[String]) = { def google = host("google.com").secure def

问题 where to place the call to dispatch.Http.shutdown() if there are n independent Http calls like, for example: import com.typesafe.scalalogging.slf4j.Logging import org.json4s._ import org.json4s.native.JsonMethods._ import scala.util.{ Failure, Success } object Main extends App with Logging { logger.debug("github.cli") // GET /users/defunkt: `curl https://api.github.com/users/defunkt` val host: dispatch.Req = dispatch.host("api.github.com").secure val request: dispatch.Req = host / "users" /

问题 Does anyone know how to do this? 回答1: You need to append your request with the header info, using the <:< operator. Like this : url("http://example.com") <:< Map("User-Agent" -> "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)") 回答2: Just from reading the source, it looks like you're supposed to call http.client.params.setParameter("User-Agent","Cowbells") on your Http object. Have you tried this? 回答3: This will work as well: url("http://example.com").addHeader(

问题 I utilized the TimeoutScheduler introduced at Scala Futures - built in timeout?. However, now my program does not terminate as before without TimeoutScheduler . I have two Future s: res1 and res2 . Both with a timeout of 15 seconds. In the end I sequence both Future s in order to shutdown the HTTP executor properly in the onComplete callback. Without using withTimeout the program terminates right after http.shutdown . But with using withTimeout is doesn't. Why? There must be some further