PureBasic

Bitfinex v2 REST Submit Order

See more Bitfinex v2 REST Examples

Submit an order. PureBasic

IncludeFile "CkJsonObject.pb"
IncludeFile "CkDateTime.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkCrypt2.pb"
IncludeFile "CkStringBuilder.pb"
IncludeFile "CkHttpResponse.pb"

Procedure ChilkatExample()

    success.i = 0

    ; This example assumes the Chilkat API to have been previously unlocked.
    ; See Global Unlock Sample for sample code.

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    crypt.i = CkCrypt2::ckCreate()
    If crypt.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    apiPath.s = "v2/auth/w/order/submit"
    apiKey.s = "MY_API_KEY"
    apiSecret.s = "MY_API_SECRET"

    dt.i = CkDateTime::ckCreate()
    If dt.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkDateTime::ckSetFromCurrentSystemTime(dt)

    sbNonce.i = CkStringBuilder::ckCreate()
    If sbNonce.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkStringBuilder::ckAppend(sbNonce,CkDateTime::ckGetAsUnixTimeStr(dt,0))
    CkStringBuilder::ckAppend(sbNonce,"000")
    nonce.s = CkStringBuilder::ckGetAsString(sbNonce)

    json.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckUpdateString(json,"type","LIMIT")
    CkJsonObject::ckUpdateString(json,"symbol","tBTCUSD")
    CkJsonObject::ckUpdateString(json,"price","15")
    CkJsonObject::ckUpdateString(json,"amount","0.001")
    CkJsonObject::ckUpdateInt(json,"flags",0)
    body.s = CkJsonObject::ckEmit(json)

    sbSignature.i = CkStringBuilder::ckCreate()
    If sbSignature.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkStringBuilder::ckAppend(sbSignature,"/api/")
    CkStringBuilder::ckAppend(sbSignature,apiPath)
    CkStringBuilder::ckAppend(sbSignature,nonce)
    CkStringBuilder::ckAppend(sbSignature,body)

    CkCrypt2::setCkEncodingMode(crypt, "hex_lower")
    CkCrypt2::setCkHashAlgorithm(crypt, "sha384")
    CkCrypt2::setCkMacAlgorithm(crypt, "hmac")
    CkCrypt2::ckSetMacKeyString(crypt,apiSecret)

    sig.s = CkCrypt2::ckMacStringENC(crypt,CkStringBuilder::ckGetAsString(sbSignature))

    CkHttp::ckSetRequestHeader(http,"bfx-apikey",apiKey)
    CkHttp::ckSetRequestHeader(http,"bfx-signature",sig)
    CkHttp::ckSetRequestHeader(http,"bfx-nonce",nonce)

    resp.i = CkHttpResponse::ckCreate()
    If resp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkHttp::ckHttpStr(http,"POST","https://api.bitfinex.com/v2/auth/w/order/submit",body,"utf-8","application/json",resp)
    If success = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkCrypt2::ckDispose(crypt)
        CkDateTime::ckDispose(dt)
        CkStringBuilder::ckDispose(sbNonce)
        CkJsonObject::ckDispose(json)
        CkStringBuilder::ckDispose(sbSignature)
        CkHttpResponse::ckDispose(resp)
        ProcedureReturn
    EndIf

    Debug "Response body:"
    Debug CkHttpResponse::ckBodyStr(resp)


    CkHttp::ckDispose(http)
    CkCrypt2::ckDispose(crypt)
    CkDateTime::ckDispose(dt)
    CkStringBuilder::ckDispose(sbNonce)
    CkJsonObject::ckDispose(json)
    CkStringBuilder::ckDispose(sbSignature)
    CkHttpResponse::ckDispose(resp)


    ProcedureReturn
EndProcedure