Android Question Exception with OkHttpUtils2

[Wosl]

Dear All!

I need some guidance ...

What I want to do:

geocoding of a given postal address which results in details like GPS coordinates

A simplified version of my App is as following:

Sub Activity_Create(FirstTime As Boolean)
    Private cAddress As String ="10117 Berlin, Pariser Platz 5"

    Log ("Address: " & cAddress)   
    Wait for (Geocoding(cAddress)) Complete(Result As Int)
    Log ("Return Code: " & Result)

End Sub
Sub Geocoding(aquery As String) As ResumableSub
    '#####################################################################
    '
    '  Geocoding a specific postal address (PLZ Stadt, Straße Hausnummer)
    '
    '  aquery        String with postal address
    '
    '#####################################################################
    Dim su As StringUtils
    Dim q As String=su.EncodeUrl(aquery,"UTF8")
    Dim s As String=$"https://nominatim.openstreetmap.org/?addressdetails=1&q=${q}&format=json"$
    Dim j As HttpJob
    Dim ier As Int

    Log ("Geocoding Query = '" & s & "'")
    Try
        j.Initialize("Geocoding", Me)
        j.Download(s)
        Wait For (j) JobDone(j As HttpJob)
        If j.Success Then
            Log ("Geocoding successfully done")
            Log ("Result = '" & j.GetString & "'")
            '
            ' ... parse for the GPS coordinates
            '
            ier = 0
        Else
            Log ("Geocoding failed (#1)")
            ier = 1
        End If
    Catch
        Log ("Geocoding failed (#2): " & LastException.Message)
        ier = 2
    End Try

    If j.IsInitialized Then    j.Release

    Return ier
End Sub

With that I receive following messages in the log:

** Activity (main) Create (first time) **
Address: 10117 Berlin, Pariser Platz 5
Geocoding Query = 'https://nominatim.openstreetmap.org/?addressdetails=1&q=10117+Berlin%2C+Pariser+Platz+5&format=json'
** Activity (main) Resume **
*** Receiver (httputils2service) Receive (first time) ***
ResponseError. Reason: , Response: Access denied. See https://operations.osmfoundation.org/policies/nominatim/
Geocoding failed (#1)
Return Code: 1
** Activity (main) Pause, UserClosed = false **

I did some variations (example: w/ and w/o try/catch - structures) which results some times in a different exception:
(ErrnoException) android.system.ErrnoException: open failed: ENOENT (No such file or directory)

When I type in the query into a browser I receive the excepted result.

It seams to me that the query result should be written to a place on my phone where I don't have access to.

What is wrong with my code?

Android version: 14
Smartphone: Galaxy A16 5G
B4A Version: 13.10

Any help appreciated ...
Wosl

PS: I use a similar code in an older android version ... and it worked. When I compile it on a newer Android version it fails.

 

[drgottjr]

read the response error. follow the link. do what it says: add user-agent and referer headers to your rquest. it's a recent change in osm's conditions of use. (note: it's also the case if you're accessing osm's map tiles). both will work when you follow the rules.

 

[TILogistic]

see:
In OSM, a valid User-Agent is VERY important.
When you make requests to its servers (for example, to the API or tiles), OSM requires you to authenticate correctly.

Example of a valid User-Agent for OSM:
MyApp/1.0 (https://myapp.com/contact)
OR:
MyApp/1.0 ([email protected])

Add: Application name and valid email address

        j.GetRequest.SetHeader("Content-Type", "application/json")
        j.GetRequest.SetHeader("User-Agent", "MyApp/1.0 ([email protected])")