PureBasic

Bitfinex v2 REST Tickers

See more Bitfinex v2 REST Examples

The tickers endpoint provides a high level overview of the state of the market. It shows the current best bid and ask, the last traded price, as well as information on the daily volume and price movement over the last day. The endpoint can retrieve multiple tickers with a single query. PureBasic

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

    ; Implements the following CURL command:

    ; curl https://api-pub.bitfinex.com/v2/tickers?symbols=tBTCUSD,tLTCUSD,fUSD

    ; 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/tickers?symbols=tBTCUSD,tLTCUSD,fUSD",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)

    ; [
    ;   [
    ;     "tBTCUSD",
    ;     9318.6,
    ;     21.53815472,
    ;     9318.7,
    ;     5.30463105,
    ;     223.5,
    ;     0.0246,
    ;     9318.7,
    ;     4125.21689058,
    ;     9370.998872,
    ;     9075.80199233
    ;   ],
    ;   [
    ;     "tLTCUSD",
    ;     44.008,
    ;     1807.8617840300003,
    ;     44.019,
    ;     2394.7625575100005,
    ;     2.359,
    ;     0.0566,
    ;     44.019,
    ;     27051.34115724,
    ;     44.16,
    ;     41.559
    ;   ],
    ;   [
    ;     "fUSD",
    ;     0.00022955068493150685,
    ;     0.000199,
    ;     30,
    ;     871597.2359141599,
    ;     0.0001962,
    ;     2,
    ;     67926.11558407999,
    ;     -0.00001146,
    ;     -0.0523,
    ;     0.00020757,
    ;     167542924.22214913,
    ;     0.00024,
    ;     0.00000299,
    ;     null,
    ;     null,
    ;     82649109.90968154
    ;   ]
    ; ]

    ; 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_1.i = CkJsonArray::ckCreate()
    If jarr_1.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    j.i
    count_j.i
    strVal.s

    i.i = 0
    count_i.i = CkJsonArray::ckSize(jarrResp)
    While i < count_i
        CkJsonArray::ckArrayAt2(jarrResp,i,jarr_1)
        j = 0
        count_j = CkJsonArray::ckSize(jarr_1)
        While j < count_j
            strVal = CkJsonArray::ckStringAt(jarr_1,j)
            j = j + 1
        Wend
        i = i + 1
    Wend


    CkHttp::ckDispose(http)
    CkStringBuilder::ckDispose(sbResponseBody)
    CkJsonArray::ckDispose(jarrResp)
    CkJsonArray::ckDispose(jarr_1)


    ProcedureReturn
EndProcedure