Dear Monks, Happy 4th of July!

Coinbase has a REST-ful API and offers code snippets in NodeJS, Python, Ruby, and PHP to connect to this API. I think a snippet showing how to connect to the latest Coinbase API in Perl would be useful to many. So I created an account on pro.coinbase.com and got an API key. I wrote the following code, based on the examples in other languages. It looks correct, but does not authenticate. I would appreciate any help. You don't have to create an account, as I've included my API key and secret key.

Please help me get this code talking to Coinbase. The API Documentation is here.

use Modern::Perl;

use LWP::UserAgent;
use JSON;
use Digest::SHA qw(hmac_sha256_base64 hmac_sha256_hex hmac_sha256);
use MIME::Base64;

my $uri        = 'https://api-public.sandbox.pro.coinbase.com';
my $api_key    = '6dc071df2d42724c019f79a53464d006';
my $secret     = 'vjYZFn39LEFfbJ5z9QzdWt+HsahYTPvXInoYMD9Gq754FJL0evlG
+nHcTiaaITGF+6GfbyYnxoyCXji9OR1iEMw==';
my $passphrase = "There is no passphrase.",

my $timestamp      = time();
my $request_method = "GET";
my $request_path   = '/products';
my $body           = '';
my $message        = $timestamp . $request_method . $request_path . $b
+ody;

my $decoded_secret = decode_base64($secret);

my $signature_b64 = encode_base64( hmac_sha256($message, $decoded_secr
+et) );
chomp($signature_b64);

my $ua = LWP::UserAgent->new;
my $res = $ua->get(
    $uri,
    'CB-ACCESS-SIGN'       => $signature_b64,
    'CB-ACCESS-TIMESTAMP'  => $timestamp,
    'CB-ACCESS-KEY'        => $api_key,
    'CB-ACCESS-PASSPHRASE' => $passphrase,
    'Content-Type'         => 'application/json'
    );

if ($res->is_success) {
    say $res->decoded_content;
} else {
    say "request failed.";
    say "status:", $res->status_line;
}

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In reply to Coinbase API by ownlifeful

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