Question on htpputils

[Toni]

Hello together,

at first let me say 'Thank you' to Erel for a great tool, (as far as I can rate as a newbie:sign0142:

I'd tried out to send a 'GET' query via Httputils to a server that should return a gpx file.
I used the code from your simple httputils example, but I doomed to failure just at the beginning:BangHead: . What's wrong? The string works fine on the PC's Browser (with a requestbox for saving the file) as well as in the webview view in b4a.
It is a query to cloudmade from the original example (incl. example key), I'd only removed the part with the sqare brackets to keep this post short. --> Routing - Wiki

Here is my (your) code and the log file:

Code:
Sub Globals
Dim myquery As String
myquery = "http://routes.cloudmade.com/8ee2a50541944fb9bcedded5165f09d9/api/0.3/54.5409,-2.9637,54.5409,-2.9637/foot.gpx"
End Sub

Sub Activity_Create (FirstTime As Boolean)
HttpUtils.CallbackActivity = "Main" 'Current activity name.
HttpUtils.CallbackJobDoneSub = "JobDone"
HttpUtils.Download("Job1", myquery)
End Sub

Sub JobDone (Job As String)
Dim in As InputStream
If HttpUtils.IsSuccess(myquery) Then
in = HttpUtils.Getinputstream(myquery)
End If
End Sub

Log:
** Activity (main) Create, isFirst = true **
Starting Job: Job1
** Activity (main) Resume **
** Service (httputilsservice) Create **
** Service (httputilsservice) Start **
Error. Url=http://routes.cloudmade.com/8ee2a50541944fb9bcedded5165f09d9/api/0.3/54.5409,-2.9637,54.5409,-2.9637/foot.gpx Message=Internal Server Error
Sorry, some unrecoverable error happened
** Service (httputilsservice) Destroy **

:sign0163: with an idea what I'm doing wrong?! Answers in german are very welcome as Ich bin Deutscher

Thanx a lot for :sign0085: Toni

P.S. I'd post this question 1st to forum's topics. How can I delete there?

 

[thedesolatesoul]

I think you need to Encode your URL since it contains special charachters.
Look at: Basic4android - StringUtils

Decoded URL:

http://routes.cloudmade.com/8ee2a50541944fb9bcedded5165f09d9/api/0.3/54.5409,-2.9637,54.5409,-2.9637/foot.gpx

EncodedURL:

http://routes.cloudmade.com%2F8ee2a50541944fb9bcedded5165f09d9%2Fapi%2F0.3%2F54.5409%2C-2.9637%2C54.5409%2C-2.9637%2Ffoot.gpx

 

[Toni]

Hi,
thanx for your fast support!

Unfortunality your encoded URL ends in:


** Activity (main) Create, isFirst = true **
Starting Job: Job1
** Activity (main) Resume **
** Service (httputilsservice) Create **
** Service (httputilsservice) Start **
Error. Url=http://routes.cloudmade.com%2F8ee2a50541944fb9bcedded5165f09d9%2Fapi%2F0.3%2F54.5409%2C-2.9637%2C54.5409%2C-2.9637%2Ffoot.gpx Message=java.lang.IllegalArgumentException: Host name may not be null
** Service (httputilsservice) Destroy **

Yet another idea?

 

[lagore]

Hi,
I thing your URL is incorrect

myquery = "http://routes.cloudmade.com/8ee2a50541944fb9bcedded5165f09d9/api/0.3/54.5409,-2.9637,54.5409,-2.9637/foot.gpx"

if you paste it into a browser it does not work.
I tried one of their examples in an app and it works,

myqueryURL = "http://routes.cloudmade.com/8ee2a50541944fb9bcedded5165f09d9/api/0.3/51.22545,4.40730,%5B51.22,4.41,51.2,4.41%5D,51.23,4.42/car.js?lang=en&units=miles"

      HttpUtils.Download("gettrack", myqueryURL)

The original url was

"http://routes.cloudmade.com/8ee2a50541944fb9bcedded5165f09d9/api/0.3/51.22545,4.40730,[51.22,4.41,51.2,4.41],51.23,4.42/car.js?lang=en&units=miles"

I had to change the '[' and ']' for '%5B' and '%5D' for it to work, all of the other characters worked

 

[thedesolatesoul]

Your URL does not look correct to me.
Do you have an example from the cloudmade website?

 

[Toni]

Hi,
I thing your URL is incorrect
if you paste it into a browser it does not work.
I tried one of their examples in an app and it works,

myqueryURL = "http://routes.cloudmade.com/8ee2a50541944fb9bcedded5165f09d9/api/0.3/51.22545,4.40730,%5B51.22,4.41,51.2,4.41%5D,51.23,4.42/car.js?lang=en&units=miles"

      HttpUtils.Download("gettrack", myqueryURL)

The original url was
I had to change the '[' and ']' for '%5B' and '%5D' for it to work, all of the other characters worked

Thank you, it seems to work (means no comments in the logfile), even I don't know what I'm doing wrong. Because at my tryout I deleted the square brackets from the example file...I've searched my whole device, but I can't find the hoppfully returned gpx-file.

Thank you

 

[Toni]

Your URL does not look correct to me.
Do you have an example from the cloudmade website?

Please view to the post from lagore, he encoded correct.
But as i wrote, there had no gpx returned.

Thank you

 

[thedesolatesoul]

It is probably stored in File.DirInternal.

What is in your JobDone sub?
When you get the inputstream from HttpUtils you can write it out anywhere you want.

Dim in As InputStream
If HttpUtils.IsSuccess(myquery) Then
in = HttpUtils.Getinputstream(myquery)
Dim out as OutputStream
out =file.OpenOutput(file.DirRootExternal,"yourfile",false)
File.Copy2(in,out)
out.close
End If

 

[lagore]

The error in your 'myquery ' url was you deleted the destination coordinates when you took out the [] so it could not return the file.
If you want to directly see the data in your code you can use

If HttpUtils.IsSuccess(myquery) Then
      Dim in As InputStream

      in = HttpUtils.Getinputstream(myquery)
            
      Dim Reader As TextReader
          Reader.Initialize(in)
      Dim inputText As String
      inputText = Reader.ReadAll
      Log(inputText)
End If

 

[Toni]

Hi to The desolatesoul and lagore,

you helped me out of my desperation! :sign0098:
Sorry for that questions I could answer by myself (like the wrong URLstring) if I had worked not so sloopy! :sign0013:

Thank you and I give you my :sign0188:

greetings from Germany

 

[thedesolatesoul]

We all have those bleary eyed coding nights where we can see nothing wrong with our code