--- a/lib/hmdb.pm	Tue Jul 05 12:39:15 2022 +0000
+++ b/lib/hmdb.pm	Wed Sep 27 12:21:00 2023 +0000
@@ -14,6 +14,8 @@
 use HTML::Template ;
 use XML::Twig ;
 use Text::CSV ;
+use URI::Encode  ;
+use open qw( :std :encoding(UTF-8) );
 
 use Data::Dumper ;
 
@@ -169,9 +171,16 @@
 		$nbAdducts = scalar( my @adducts = ( split (/,/, $adductString) ) ) ;
 		
 		## Converting string into http post format
-		$adductString =~ s/\+/%2B/g ;
-		$adductString =~ s/,/%20/g ;
-		$formattedAdductString = $adductString ;
+#		$adductString =~ s/\+/%2B/g ;
+#		$adductString =~ s/,/%20/g ;
+#		$formattedAdductString = $adductString ;
+
+		my $uri = URI::Encode->new( { encode_reserved => 1 } );
+		foreach my $adduct (@adducts) {
+			# &results%5Badduct_type%5D%5B%5D=M%2BH&results%5Badduct_type%5D%5B%5D=M%2BNH4-H2O&results%5Badduct_type%5D%5B%5D=M%2BNa
+			my $EncodedAdduct = $uri->encode($adduct);
+			$formattedAdductString .= '&results%5Badduct_type%5D%5B%5D='.$EncodedAdduct ;
+		}
 	}
 	else {
 		warn "\t[WARN]the adduct type is not defined...It will set to 'Unknown'\n" ;
@@ -640,16 +649,19 @@
 		$mech->add_header('Referer', 'https://www.hmdb.ca/spectra/ms/search');
 		$mech->add_header('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8');
 	}
-	## adduct format is adduct_type=M%2BH%202M%2BH
-	
 	if ( (!defined $adducts) or ( $adducts eq '')  ) {
 		$adducts = 'Unknown' ;
 	}
+	#&results%5Badduct_type%5D%5B%5D=M%2BH&results%5Badduct_type%5D%5B%5D=M%2BNH4-H2O&results%5Badduct_type%5D%5B%5D=M%2BNa
+	# Query
+	#https://hmdb.ca/spectra/ms/generate_csv.csv?results%5Baction%5D=search&results%5Badduct_type%5D%5B%5D=M%2BH&results%5Badduct_type%5D%5B%5D=M%2BNH4-H2O&results%5Badduct_type%5D%5B%5D=M%2BNa&results%5Bauthenticity_token%5D=uN4r4Xme0bl5Lj%2Buv%2BrjebgrdF0oFO7mfxg0T7mHFlHcUSDkVAd%2BRB3qQDzm5fdz3BV4kKX%2F1i2uLOOdvBgK%2FA%3D%3D&results%5Bccs_predictors%5D=&results%5Bccs_tolerance%5D=&results%5Bcommit%5D=Search&results%5Bcontroller%5D=specdb%2Fms&results%5Bms_search_ion_mode%5D=positive&results%5Bquery_masses%5D=175.01&results%5Btolerance%5D=0.05&results%5Btolerance_units%5D=Da&results%5Butf8%5D=%E2%9C%93
+	#&results%5Badduct_type%5D%5B%5D=M%2BH&results%5Badduct_type%5D%5B%5D=M%2BNH4-H2O&results%5Badduct_type%5D%5B%5D=M%2BNa
 		
 	my $res = $mech->get(
 		'https://hmdb.ca/spectra/ms/generate_csv.csv?'
 		.'results%5Baction%5D=search'
-		.'&results%5Badduct_type%5D%5B%5D='.$adducts
+		#.'&results%5Badduct_type%5D%5B%5D='.$adducts
+		.$adducts
 		#.'&results%5Bauthenticity_token%5D='
 		.'&results%5Bccs_predictors%5D='
 		.'&results%5Bccs_tolerance%5D='