Erro 415 Unsupported media type

[Ernildo1]

Erro 415 Unsupported media type

I receiver this error,
can anybody help me?

[BetfairDeveloperProgram]

Hi Ernildo1

Please check that your sending the required Accept: application/json header with your API requests.

Thanks

Neil

[Ernildo1]

Hello


I send this required in all conection :



request.setRequestHeader("X-Application", this._APP_KEY)
request.setRequestHeader("content-type", 'application/json')
request.setRequestHeader("Accept", 'application/json')
request.setRequestHeader("X-Authentication", this._SESSION_TOKEN)


but sometimes I get the error 415





Thank you for reply me.

[jabe]

I don't know which language you are using, but the mixture of single and double quotes within your brackets looks odd.

As well as that, I believe you need colons after X-Application and X-Authorisation.

Try this:

request.setRequestHeader("content-type", "application/json")
request.setRequestHeader("Accept", "application/json")
request.setRequestHeader("X-Authentication:", this._SESSION_TOKEN)
request.setRequestHeader("X-Application:", this._APP_KEY)

[Ernildo1]

Ok thank you for reply me i try this now

[Ernildo1]

I'm using javascript

[Ernildo1]

I did what you said and error 415 continues.

[jabe]

Could you post more of the code? The issue might be elsewhere in your code.

[Ernildo1]

The application run javascript code in electron js, we have a class where a method "send" return a request as a javascript promise using XMLHttpRequest, like this:

send(url, data = "", method = "POST", headers = true, callback = (request, context) => {return request}, noCache = false)
{
let self = this;
let request = new XMLHttpRequest()
return new Promise((resolve, reject) => {
request.open(method, url, true)
if(headers){
self.setHeaders(request)
}
self.setCache(request, noCache)
request = callback(request, self)
request.onreadystatechange = () => {
if(request.readyState == XMLHttpRequest.DONE && request.status == 200){
resolve(request.responseText)
}else if(request.status === 0 || request.status >= 400){
reject({status: request.status, statusText: request.statusText})
}
}
request.onerror = () => {
reject({status: request.status, statusText: request.statusText})
}
request.send(data)
})
}

[jabe]

I'm going to post some of the code I've been using. Much of it was originally found on this forum and in other places, but, alas, it was so long ago that I can't recall exactly, so can't credit the source.

I hope it will give you the clues you need to fix your code.

This is a call to a routine that sends bet-related request calls to Betfair:

 Public Function API_listCompetitions()
        ' From Initialise
        Return API_sendBetReq("listCompetitions", """filter"":{ }")
    End Function

This is the routine that sets up and makes the call to Betfair (note: this works most of the time but the error trapping needs attention):

 Public Function API_sendBetReq(ByVal method As String, ByVal params As String)

        Dim request As WebRequest = WebRequest.Create("https://api.betfair.com/exchange/betting/json-rpc/v1/")

        Dim postData As String = "{""jsonrpc"": ""2.0"", ""method"": ""SportsAPING/v1.0/" & method & """, ""params"": {" & params & "},""id"": 1}"

        Dim JSONByteData As Byte() = Encoding.UTF8.GetBytes(postData)

        request.Method = "POST"
        request.ContentType = "application/json-rpc"
        request.ContentLength = JSONByteData.Length
        request.Headers.Add("X-Application: " & appKey)
        request.Headers.Add("X-Authentication: " & ssoid)
        request.Headers.Add("Content-Encoding: gzip")


        Dim dataStream As Stream = Nothing

        dataStream = request.GetRequestStream()
        dataStream.Write(JSONByteData, 0, JSONByteData.Length)

        Dim response As WebResponse = Nothing
        Dim responseFromServer As String = ""
        Try
            response = request.GetResponse()
            dataStream = response.GetResponseStream()
            Dim reader As New StreamReader(dataStream)
            responseFromServer = reader.ReadToEnd()
            reader.Close()
            response.Close()
        Catch e As WebException
            MessageBox.Show("Error!")
        End Try

        dataStream.Close()
        Dim x As String = DataFetched(Me, responseFromServer.Length)
        Return responseFromServer
    End Function