(PureBasic) Bitfinex v2 REST Public Trades

The trades endpoint allows the retrieval of past public trades and includes details such as price, size, and time. Optional parameters can be used to limit the number of results; you can specify a start and end timestamp, a limit, and a sorting method.

For more information, see https://docs.bitfinex.com/reference#rest-public-trades

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkHttp.pb"
IncludeFile "CkStringBuilder.pb"
IncludeFile "CkJsonArray.pb"

Procedure ChilkatExample()

    ; 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

    success.i

    ; Implements the following CURL command:

    ; curl https://api-pub.bitfinex.com/v2/trades/tBTCUSD/hist?limit=5

    ; Use the following online tool to generate HTTP code from a CURL command
    ; Convert a cURL Command to HTTP Source Code

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

    success = CkHttp::ckQuickGetSb(http,"https://api-pub.bitfinex.com/v2/trades/tBTCUSD/hist?limit=5",sbResponseBody)
    If success = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkStringBuilder::ckDispose(sbResponseBody)
        ProcedureReturn
    EndIf

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

    CkJsonArray::ckLoadSb(jarrResp,sbResponseBody)
    CkJsonArray::setCkEmitCompact(jarrResp, 0)

    Debug "Response Body:"
    Debug CkJsonArray::ckEmit(jarrResp)

    respStatusCode.i = CkHttp::ckLastStatus(http)
    Debug "Response Status Code = " + Str(respStatusCode)
    If respStatusCode >= 400
        Debug "Response Header:"
        Debug CkHttp::ckLastHeader(http)
        Debug "Failed."
        CkHttp::ckDispose(http)
        CkStringBuilder::ckDispose(sbResponseBody)
        CkJsonArray::ckDispose(jarrResp)
        ProcedureReturn
    EndIf

    ; Sample JSON response:
    ; (Sample code for parsing the JSON response is shown below)

    ; on trading pairs (ex. tBTCUSD)
    ; [
    ;   [
    ;     ID,
    ;     MTS,
    ;     AMOUNT,
    ;     PRICE
    ;   ]
    ; ]

    ; [
    ;   [
    ;     472164271,
    ;     1594077725121,
    ;     -0.15101673,
    ;     9370
    ;   ],
    ;   [
    ;     472164270,
    ;     1594077723860,
    ;     -0.015,
    ;     9370
    ;   ],
    ;   [
    ;     472164269,
    ;     1594077720208,
    ;     -0.015,
    ;     9370
    ;   ],
    ;   [
    ;     472164267,
    ;     1594077718125,
    ;     -0.005,
    ;     9370
    ;   ],
    ;   [
    ;     472164251,
    ;     1594077697587,
    ;     -0.015,
    ;     9370
    ;   ]
    ; ]

    ; Sample code for parsing the JSON response...
    ; Use the following online tool to generate parsing code from sample JSON:
    ; Generate Parsing Code from JSON

    jarr_trade.i

    i.i = 0
    count_i.i = CkJsonArray::ckSize(jarrResp)
    While i < count_i
        jarr_trade = CkJsonArray::ckArrayAt(jarrResp,i)

        trade_id.s = CkJsonArray::ckStringAt(jarr_trade,0)
        mts.s = CkJsonArray::ckStringAt(jarr_trade,1)
        amount.s = CkJsonArray::ckStringAt(jarr_trade,2)
        price.s = CkJsonArray::ckStringAt(jarr_trade,3)

        CkJsonArray::ckDispose(jarr_trade)

        i = i + 1
    Wend


    CkHttp::ckDispose(http)
    CkStringBuilder::ckDispose(sbResponseBody)
    CkJsonArray::ckDispose(jarrResp)


    ProcedureReturn
EndProcedure