(SQL Server) Bitfinex v2 REST Tickers

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.

Note: This example requires Chilkat v11.0.0 or greater.

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

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

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

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- 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

    DECLARE @sbResponseBody int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbResponseBody OUT

    EXEC sp_OAMethod @http, 'QuickGetSb', @success OUT, 'https://api-pub.bitfinex.com/v2/tickers?symbols=tBTCUSD,tLTCUSD,fUSD', @sbResponseBody
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @sbResponseBody
        RETURN
      END

    DECLARE @jarrResp int
    EXEC @hr = sp_OACreate 'Chilkat.JsonArray', @jarrResp OUT

    EXEC sp_OAMethod @jarrResp, 'LoadSb', @success OUT, @sbResponseBody
    EXEC sp_OASetProperty @jarrResp, 'EmitCompact', 0


    PRINT 'Response Body:'
    EXEC sp_OAMethod @jarrResp, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    DECLARE @respStatusCode int
    EXEC sp_OAGetProperty @http, 'LastStatus', @respStatusCode OUT

    PRINT 'Response Status Code = ' + @respStatusCode
    IF @respStatusCode >= 400
      BEGIN

        PRINT 'Response Header:'
        EXEC sp_OAGetProperty @http, 'LastHeader', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'Failed.'
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @sbResponseBody
        EXEC @hr = sp_OADestroy @jarrResp
        RETURN
      END

    -- 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

    DECLARE @jarr_1 int
    EXEC @hr = sp_OACreate 'Chilkat.JsonArray', @jarr_1 OUT

    DECLARE @j int

    DECLARE @count_j int

    DECLARE @strVal nvarchar(4000)

    DECLARE @i int
    SELECT @i = 0
    DECLARE @count_i int
    EXEC sp_OAGetProperty @jarrResp, 'Size', @count_i OUT
    WHILE @i < @count_i
      BEGIN
        EXEC sp_OAMethod @jarrResp, 'ArrayAt2', @success OUT, @i, @jarr_1
        SELECT @j = 0
        EXEC sp_OAGetProperty @jarr_1, 'Size', @count_j OUT
        WHILE @j < @count_j
          BEGIN
            EXEC sp_OAMethod @jarr_1, 'StringAt', @strVal OUT, @j
            SELECT @j = @j + 1
          END
        SELECT @i = @i + 1
      END

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @sbResponseBody
    EXEC @hr = sp_OADestroy @jarrResp
    EXEC @hr = sp_OADestroy @jarr_1


END
GO