diff --git a/client/retrieve/key.js b/client/retrieve/key.js
new file mode 100644
index 0000000..cf13102
--- /dev/null
+++ b/client/retrieve/key.js
@@ -0,0 +1,100 @@
+module.exports = {
+  DEFAULT_RSA_PUBLIC_KEY_DER: new Buffer([
+    0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+    0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01,
+    0x00, 0xb8, 0x09, 0xa7, 0x59, 0x82, 0x84, 0xec, 0x4f, 0x06, 0xfa, 0x1c, 0xb2, 0xe1, 0x38, 0x93,
+    0x53, 0xbb, 0x7d, 0xd4, 0xac, 0x88, 0x1a, 0xf8, 0x25, 0x11, 0xe4, 0xfa, 0x1d, 0x61, 0x24, 0x5b,
+    0x82, 0xca, 0xcd, 0x72, 0xce, 0xdb, 0x66, 0xb5, 0x8d, 0x54, 0xbd, 0xfb, 0x23, 0xfd, 0xe8, 0x8e,
+    0xaf, 0xa7, 0xb3, 0x79, 0xbe, 0x94, 0xb5, 0xb7, 0xba, 0x17, 0xb6, 0x05, 0xae, 0xce, 0x43, 0xbe,
+    0x3b, 0xce, 0x6e, 0xea, 0x07, 0xdb, 0xbf, 0x0a, 0x7e, 0xeb, 0xbc, 0xc9, 0x7b, 0x62, 0x3c, 0xf5,
+    0xe1, 0xce, 0xe1, 0xd9, 0x8d, 0x9c, 0xfe, 0x1f, 0xc7, 0xf8, 0xfb, 0x59, 0xc0, 0x94, 0x0b, 0x2c,
+    0xd9, 0x7d, 0xbc, 0x96, 0xeb, 0xb8, 0x79, 0x22, 0x8a, 0x2e, 0xa0, 0x12, 0x1d, 0x42, 0x07, 0xb6,
+    0x5d, 0xdb, 0xe1, 0xf6, 0xb1, 0x5d, 0x7b, 0x1f, 0x54, 0x52, 0x1c, 0xa3, 0x11, 0x9b, 0xf9, 0xeb,
+    0xbe, 0xb3, 0x95, 0xca, 0xa5, 0x87, 0x3f, 0x31, 0x18, 0x1a, 0xc9, 0x99, 0x01, 0xec, 0xaa, 0x90,
+    0xfd, 0x8a, 0x36, 0x35, 0x5e, 0x12, 0x81, 0xbe, 0x84, 0x88, 0xa1, 0x0d, 0x19, 0x2a, 0x4a, 0x66,
+    0xc1, 0x59, 0x3c, 0x41, 0x83, 0x3d, 0x3d, 0xb8, 0xd4, 0xab, 0x34, 0x90, 0x06, 0x3e, 0x1a, 0x61,
+    0x74, 0xbe, 0x04, 0xf5, 0x7a, 0x69, 0x1b, 0x9d, 0x56, 0xfc, 0x83, 0xb7, 0x60, 0xc1, 0x5e, 0x9d,
+    0x85, 0x34, 0xfd, 0x02, 0x1a, 0xba, 0x2c, 0x09, 0x72, 0xa7, 0x4a, 0x5e, 0x18, 0xbf, 0xc0, 0x58,
+    0xa7, 0x49, 0x34, 0x46, 0x61, 0x59, 0x0e, 0xe2, 0x6e, 0x9e, 0xd2, 0xdb, 0xfd, 0x72, 0x2f, 0x3c,
+    0x47, 0xcc, 0x5f, 0x99, 0x62, 0xee, 0x0d, 0xf3, 0x1f, 0x30, 0x25, 0x20, 0x92, 0x15, 0x4b, 0x04,
+    0xfe, 0x15, 0x19, 0x1d, 0xdc, 0x7e, 0x5c, 0x10, 0x21, 0x52, 0x21, 0x91, 0x54, 0x60, 0x8b, 0x92,
+    0x41, 0x02, 0x03, 0x01, 0x00, 0x01]),
+
+  DEFAULT_RSA_PRIVATE_KEY_DER: new Buffer([
+    0x30, 0x82, 0x04, 0xa5, 0x02, 0x01, 0x00, 0x02, 0x82, 0x01, 0x01, 0x00, 0xb8, 0x09, 0xa7, 0x59,
+    0x82, 0x84, 0xec, 0x4f, 0x06, 0xfa, 0x1c, 0xb2, 0xe1, 0x38, 0x93, 0x53, 0xbb, 0x7d, 0xd4, 0xac,
+    0x88, 0x1a, 0xf8, 0x25, 0x11, 0xe4, 0xfa, 0x1d, 0x61, 0x24, 0x5b, 0x82, 0xca, 0xcd, 0x72, 0xce,
+    0xdb, 0x66, 0xb5, 0x8d, 0x54, 0xbd, 0xfb, 0x23, 0xfd, 0xe8, 0x8e, 0xaf, 0xa7, 0xb3, 0x79, 0xbe,
+    0x94, 0xb5, 0xb7, 0xba, 0x17, 0xb6, 0x05, 0xae, 0xce, 0x43, 0xbe, 0x3b, 0xce, 0x6e, 0xea, 0x07,
+    0xdb, 0xbf, 0x0a, 0x7e, 0xeb, 0xbc, 0xc9, 0x7b, 0x62, 0x3c, 0xf5, 0xe1, 0xce, 0xe1, 0xd9, 0x8d,
+    0x9c, 0xfe, 0x1f, 0xc7, 0xf8, 0xfb, 0x59, 0xc0, 0x94, 0x0b, 0x2c, 0xd9, 0x7d, 0xbc, 0x96, 0xeb,
+    0xb8, 0x79, 0x22, 0x8a, 0x2e, 0xa0, 0x12, 0x1d, 0x42, 0x07, 0xb6, 0x5d, 0xdb, 0xe1, 0xf6, 0xb1,
+    0x5d, 0x7b, 0x1f, 0x54, 0x52, 0x1c, 0xa3, 0x11, 0x9b, 0xf9, 0xeb, 0xbe, 0xb3, 0x95, 0xca, 0xa5,
+    0x87, 0x3f, 0x31, 0x18, 0x1a, 0xc9, 0x99, 0x01, 0xec, 0xaa, 0x90, 0xfd, 0x8a, 0x36, 0x35, 0x5e,
+    0x12, 0x81, 0xbe, 0x84, 0x88, 0xa1, 0x0d, 0x19, 0x2a, 0x4a, 0x66, 0xc1, 0x59, 0x3c, 0x41, 0x83,
+    0x3d, 0x3d, 0xb8, 0xd4, 0xab, 0x34, 0x90, 0x06, 0x3e, 0x1a, 0x61, 0x74, 0xbe, 0x04, 0xf5, 0x7a,
+    0x69, 0x1b, 0x9d, 0x56, 0xfc, 0x83, 0xb7, 0x60, 0xc1, 0x5e, 0x9d, 0x85, 0x34, 0xfd, 0x02, 0x1a,
+    0xba, 0x2c, 0x09, 0x72, 0xa7, 0x4a, 0x5e, 0x18, 0xbf, 0xc0, 0x58, 0xa7, 0x49, 0x34, 0x46, 0x61,
+    0x59, 0x0e, 0xe2, 0x6e, 0x9e, 0xd2, 0xdb, 0xfd, 0x72, 0x2f, 0x3c, 0x47, 0xcc, 0x5f, 0x99, 0x62,
+    0xee, 0x0d, 0xf3, 0x1f, 0x30, 0x25, 0x20, 0x92, 0x15, 0x4b, 0x04, 0xfe, 0x15, 0x19, 0x1d, 0xdc,
+    0x7e, 0x5c, 0x10, 0x21, 0x52, 0x21, 0x91, 0x54, 0x60, 0x8b, 0x92, 0x41, 0x02, 0x03, 0x01, 0x00,
+    0x01, 0x02, 0x82, 0x01, 0x01, 0x00, 0x8a, 0x05, 0xfb, 0x73, 0x7f, 0x16, 0xaf, 0x9f, 0xa9, 0x4c,
+    0xe5, 0x3f, 0x26, 0xf8, 0x66, 0x4d, 0xd2, 0xfc, 0xd1, 0x06, 0xc0, 0x60, 0xf1, 0x9f, 0xe3, 0xa6,
+    0xc6, 0x0a, 0x48, 0xb3, 0x9a, 0xca, 0x21, 0xcd, 0x29, 0x80, 0x88, 0x3d, 0xa4, 0x85, 0xa5, 0x7b,
+    0x82, 0x21, 0x81, 0x28, 0xeb, 0xf2, 0x43, 0x24, 0xb0, 0x76, 0xc5, 0x52, 0xef, 0xc2, 0xea, 0x4b,
+    0x82, 0x41, 0x92, 0xc2, 0x6d, 0xa6, 0xae, 0xf0, 0xb2, 0x26, 0x48, 0xa1, 0x23, 0x7f, 0x02, 0xcf,
+    0xa8, 0x90, 0x17, 0xa2, 0x3e, 0x8a, 0x26, 0xbd, 0x6d, 0x8a, 0xee, 0xa6, 0x0c, 0x31, 0xce, 0xc2,
+    0xbb, 0x92, 0x59, 0xb5, 0x73, 0xe2, 0x7d, 0x91, 0x75, 0xe2, 0xbd, 0x8c, 0x63, 0xe2, 0x1c, 0x8b,
+    0xc2, 0x6a, 0x1c, 0xfe, 0x69, 0xc0, 0x44, 0xcb, 0x58, 0x57, 0xb7, 0x13, 0x42, 0xf0, 0xdb, 0x50,
+    0x4c, 0xe0, 0x45, 0x09, 0x8f, 0xca, 0x45, 0x8a, 0x06, 0xfe, 0x98, 0xd1, 0x22, 0xf5, 0x5a, 0x9a,
+    0xdf, 0x89, 0x17, 0xca, 0x20, 0xcc, 0x12, 0xa9, 0x09, 0x3d, 0xd5, 0xf7, 0xe3, 0xeb, 0x08, 0x4a,
+    0xc4, 0x12, 0xc0, 0xb9, 0x47, 0x6c, 0x79, 0x50, 0x66, 0xa3, 0xf8, 0xaf, 0x2c, 0xfa, 0xb4, 0x6b,
+    0xec, 0x03, 0xad, 0xcb, 0xda, 0x24, 0x0c, 0x52, 0x07, 0x87, 0x88, 0xc0, 0x21, 0xf3, 0x02, 0xe8,
+    0x24, 0x44, 0x0f, 0xcd, 0xa0, 0xad, 0x2f, 0x1b, 0x79, 0xab, 0x6b, 0x49, 0x4a, 0xe6, 0x3b, 0xd0,
+    0xad, 0xc3, 0x48, 0xb9, 0xf7, 0xf1, 0x34, 0x09, 0xeb, 0x7a, 0xc0, 0xd5, 0x0d, 0x39, 0xd8, 0x45,
+    0xce, 0x36, 0x7a, 0xd8, 0xde, 0x3c, 0xb0, 0x21, 0x96, 0x97, 0x8a, 0xff, 0x8b, 0x23, 0x60, 0x4f,
+    0xf0, 0x3d, 0xd7, 0x8f, 0xf3, 0x2c, 0xcb, 0x1d, 0x48, 0x3f, 0x86, 0xc4, 0xa9, 0x00, 0xf2, 0x23,
+    0x2d, 0x72, 0x4d, 0x66, 0xa5, 0x01, 0x02, 0x81, 0x81, 0x00, 0xdc, 0x4f, 0x99, 0x44, 0x0d, 0x7f,
+    0x59, 0x46, 0x1e, 0x8f, 0xe7, 0x2d, 0x8d, 0xdd, 0x54, 0xc0, 0xf7, 0xfa, 0x46, 0x0d, 0x9d, 0x35,
+    0x03, 0xf1, 0x7c, 0x12, 0xf3, 0x5a, 0x9d, 0x83, 0xcf, 0xdd, 0x37, 0x21, 0x7c, 0xb7, 0xee, 0xc3,
+    0x39, 0xd2, 0x75, 0x8f, 0xb2, 0x2d, 0x6f, 0xec, 0xc6, 0x03, 0x55, 0xd7, 0x00, 0x67, 0xd3, 0x9b,
+    0xa2, 0x68, 0x50, 0x6f, 0x9e, 0x28, 0xa4, 0x76, 0x39, 0x2b, 0xb2, 0x65, 0xcc, 0x72, 0x82, 0x93,
+    0xa0, 0xcf, 0x10, 0x05, 0x6a, 0x75, 0xca, 0x85, 0x35, 0x99, 0xb0, 0xa6, 0xc6, 0xef, 0x4c, 0x4d,
+    0x99, 0x7d, 0x2c, 0x38, 0x01, 0x21, 0xb5, 0x31, 0xac, 0x80, 0x54, 0xc4, 0x18, 0x4b, 0xfd, 0xef,
+    0xb3, 0x30, 0x22, 0x51, 0x5a, 0xea, 0x7d, 0x9b, 0xb2, 0x9d, 0xcb, 0xba, 0x3f, 0xc0, 0x1a, 0x6b,
+    0xcd, 0xb0, 0xe6, 0x2f, 0x04, 0x33, 0xd7, 0x3a, 0x49, 0x71, 0x02, 0x81, 0x81, 0x00, 0xd5, 0xd9,
+    0xc9, 0x70, 0x1a, 0x13, 0xb3, 0x39, 0x24, 0x02, 0xee, 0xb0, 0xbb, 0x84, 0x17, 0x12, 0xc6, 0xbd,
+    0x65, 0x73, 0xe9, 0x34, 0x5d, 0x43, 0xff, 0xdc, 0xf8, 0x55, 0xaf, 0x2a, 0xb9, 0xe1, 0xfa, 0x71,
+    0x65, 0x4e, 0x50, 0x0f, 0xa4, 0x3b, 0xe5, 0x68, 0xf2, 0x49, 0x71, 0xaf, 0x15, 0x88, 0xd7, 0xaf,
+    0xc4, 0x9d, 0x94, 0x84, 0x6b, 0x5b, 0x10, 0xd5, 0xc0, 0xaa, 0x0c, 0x13, 0x62, 0x99, 0xc0, 0x8b,
+    0xfc, 0x90, 0x0f, 0x87, 0x40, 0x4d, 0x58, 0x88, 0xbd, 0xe2, 0xba, 0x3e, 0x7e, 0x2d, 0xd7, 0x69,
+    0xa9, 0x3c, 0x09, 0x64, 0x31, 0xb6, 0xcc, 0x4d, 0x1f, 0x23, 0xb6, 0x9e, 0x65, 0xd6, 0x81, 0xdc,
+    0x85, 0xcc, 0x1e, 0xf1, 0x0b, 0x84, 0x38, 0xab, 0x93, 0x5f, 0x9f, 0x92, 0x4e, 0x93, 0x46, 0x95,
+    0x6b, 0x3e, 0xb6, 0xc3, 0x1b, 0xd7, 0x69, 0xa1, 0x0a, 0x97, 0x37, 0x78, 0xed, 0xd1, 0x02, 0x81,
+    0x80, 0x33, 0x18, 0xc3, 0x13, 0x65, 0x8e, 0x03, 0xc6, 0x9f, 0x90, 0x00, 0xae, 0x30, 0x19, 0x05,
+    0x6f, 0x3c, 0x14, 0x6f, 0xea, 0xf8, 0x6b, 0x33, 0x5e, 0xee, 0xc7, 0xf6, 0x69, 0x2d, 0xdf, 0x44,
+    0x76, 0xaa, 0x32, 0xba, 0x1a, 0x6e, 0xe6, 0x18, 0xa3, 0x17, 0x61, 0x1c, 0x92, 0x2d, 0x43, 0x5d,
+    0x29, 0xa8, 0xdf, 0x14, 0xd8, 0xff, 0xdb, 0x38, 0xef, 0xb8, 0xb8, 0x2a, 0x96, 0x82, 0x8e, 0x68,
+    0xf4, 0x19, 0x8c, 0x42, 0xbe, 0xcc, 0x4a, 0x31, 0x21, 0xd5, 0x35, 0x6c, 0x5b, 0xa5, 0x7c, 0xff,
+    0xd1, 0x85, 0x87, 0x28, 0xdc, 0x97, 0x75, 0xe8, 0x03, 0x80, 0x1d, 0xfd, 0x25, 0x34, 0x41, 0x31,
+    0x21, 0x12, 0x87, 0xe8, 0x9a, 0xb7, 0x6a, 0xc0, 0xc4, 0x89, 0x31, 0x15, 0x45, 0x0d, 0x9c, 0xee,
+    0xf0, 0x6a, 0x2f, 0xe8, 0x59, 0x45, 0xc7, 0x7b, 0x0d, 0x6c, 0x55, 0xbb, 0x43, 0xca, 0xc7, 0x5a,
+    0x01, 0x02, 0x81, 0x81, 0x00, 0xab, 0xf4, 0xd5, 0xcf, 0x78, 0x88, 0x82, 0xc2, 0xdd, 0xbc, 0x25,
+    0xe6, 0xa2, 0xc1, 0xd2, 0x33, 0xdc, 0xef, 0x0a, 0x97, 0x2b, 0xdc, 0x59, 0x6a, 0x86, 0x61, 0x4e,
+    0xa6, 0xc7, 0x95, 0x99, 0xa6, 0xa6, 0x55, 0x6c, 0x5a, 0x8e, 0x72, 0x25, 0x63, 0xac, 0x52, 0xb9,
+    0x10, 0x69, 0x83, 0x99, 0xd3, 0x51, 0x6c, 0x1a, 0xb3, 0x83, 0x6a, 0xff, 0x50, 0x58, 0xb7, 0x28,
+    0x97, 0x13, 0xe2, 0xba, 0x94, 0x5b, 0x89, 0xb4, 0xea, 0xba, 0x31, 0xcd, 0x78, 0xe4, 0x4a, 0x00,
+    0x36, 0x42, 0x00, 0x62, 0x41, 0xc6, 0x47, 0x46, 0x37, 0xea, 0x6d, 0x50, 0xb4, 0x66, 0x8f, 0x55,
+    0x0c, 0xc8, 0x99, 0x91, 0xd5, 0xec, 0xd2, 0x40, 0x1c, 0x24, 0x7d, 0x3a, 0xff, 0x74, 0xfa, 0x32,
+    0x24, 0xe0, 0x11, 0x2b, 0x71, 0xad, 0x7e, 0x14, 0xa0, 0x77, 0x21, 0x68, 0x4f, 0xcc, 0xb6, 0x1b,
+    0xe8, 0x00, 0x49, 0x13, 0x21, 0x02, 0x81, 0x81, 0x00, 0xb6, 0x18, 0x73, 0x59, 0x2c, 0x4f, 0x92,
+    0xac, 0xa2, 0x2e, 0x5f, 0xb6, 0xbe, 0x78, 0x5d, 0x47, 0x71, 0x04, 0x92, 0xf0, 0xd7, 0xe8, 0xc5,
+    0x7a, 0x84, 0x6b, 0xb8, 0xb4, 0x30, 0x1f, 0xd8, 0x0d, 0x58, 0xd0, 0x64, 0x80, 0xa7, 0x21, 0x1a,
+    0x48, 0x00, 0x37, 0xd6, 0x19, 0x71, 0xbb, 0x91, 0x20, 0x9d, 0xe2, 0xc3, 0xec, 0xdb, 0x36, 0x1c,
+    0xca, 0x48, 0x7d, 0x03, 0x32, 0x74, 0x1e, 0x65, 0x73, 0x02, 0x90, 0x73, 0xd8, 0x3f, 0xb5, 0x52,
+    0x35, 0x79, 0x1c, 0xee, 0x93, 0xa3, 0x32, 0x8b, 0xed, 0x89, 0x98, 0xf1, 0x0c, 0xd8, 0x12, 0xf2,
+    0x89, 0x7f, 0x32, 0x23, 0xec, 0x67, 0x66, 0x52, 0x83, 0x89, 0x99, 0x5e, 0x42, 0x2b, 0x42, 0x4b,
+    0x84, 0x50, 0x1b, 0x3e, 0x47, 0x6d, 0x74, 0xfb, 0xd1, 0xa6, 0x10, 0x20, 0x6c, 0x6e, 0xbe, 0x44,
+    0x3f, 0xb9, 0xfe, 0xbc, 0x8d, 0xda, 0xcb, 0xea, 0x8f
+  ])
+};
\ No newline at end of file
diff --git a/client/retrieve/retrieve_agent.js b/client/retrieve/retrieve_agent.js
new file mode 100644
index 0000000..d67300b
--- /dev/null
+++ b/client/retrieve/retrieve_agent.js
@@ -0,0 +1,178 @@
+/** NDN-Atmos: Cataloging Service for distributed data originally developed
+ *  for atmospheric science data
+ *  Copyright (C) 2015 Colorado State University
+ *
+ *  NDN-Atmos is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  NDN-Atmos is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with NDN-Atmos.  If not, see <http://www.gnu.org/licenses/>.
+**/
+
+"use strict";
+var ndn = require("ndn-js");
+var key = require("./key");
+var fs = require("fs");
+
+function RetrieveData(){
+    this.pipelineSize = 4;
+    this.timeoutDict = {};
+    this.retransmissionDict = {};
+    this.existingFileList = [];
+    //FIXME: get this from the config file
+    this.face = new ndn.Face({host: "localhost", port: "6363"});
+
+    this.identityStorage = new ndn.MemoryIdentityStorage();
+    this.privateKeyStorage = new ndn.MemoryPrivateKeyStorage();
+
+    this.keyChain = new ndn.KeyChain(new ndn.IdentityManager(this.identityStorage,
+                                    this.privateKeyStorage),
+                                    new ndn.SelfVerifyPolicyManager(this.identityStorage));
+
+    //FIXME:this should be based on the key
+    this.keyName = new ndn.Name("/retrieve/DSK-123");
+    this.certificateName = this.keyName.getSubName(0, this.keyName.size() - 1)
+                          .append("KEY").append(this.keyName.get(-1))
+                          .append("ID-CERT").append("0");
+
+    this.identityStorage.addKey(this.keyName, ndn.KeyType.RSA,
+                               new ndn.Blob(key.DEFAULT_RSA_PUBLIC_KEY_DER, false));
+
+    this.privateKeyStorage.setKeyPairForKeyName(this.keyName,
+                                               ndn.KeyType.RSA,
+                                               key.DEFAULT_RSA_PUBLIC_KEY_DER,
+                                               key.DEFAULT_RSA_PRIVATE_KEY_DER);
+
+    this.face.setCommandSigningInfo(this.keyChain, this.certificateName);
+
+    this.retrievePrefix = new ndn.Name("/retrieve/nwsc");
+    this.face.registerPrefix(this.retrievePrefix, this.onUiInterest.bind(this),
+                            this.onRegisterFailed.bind(this));
+    console.log("Registering prefix " + this.retrievePrefix.toUri());
+}
+
+
+RetrieveData.prototype.onUiInterest = function(prefix, interest, face, interestFilterId, filter) {
+    //FIXME: Authenticate Interest
+    var interestName = new ndn.Name(interest.getName());
+    var outgoingInterestName = interestName.getSubName(2).appendSegment(0);
+    console.log("Received Interest" + interest.getName().toUri() +
+               " Requesting " + outgoingInterestName.getName());
+    //send this Interest is from the UI, bind it to a different onData call
+    face.expressInterest(outgoingInterestName, this.onUiData.bind(this), this.onTimeout.bind(this));
+    //using HTTP status codes
+    var retrieveStatus = "200";
+    var statusData = new ndn.Data(interest.getName());
+    statusData.setContent(retrieveStatus);
+    this.keyChain.sign(statusData, this.certificateName);
+    this.face.putData(statusData);
+
+}
+
+RetrieveData.prototype.onUiData = function(Interest, data){
+//this only handles UI data
+    var payload = JSON.parse(data.getContent());
+    console.log("Data is " + payload);
+
+    //go over the loop and ask for each data object in the list
+    for (var entry in payload) {
+        //FIXME: if files exist locally, don't pull them.
+        //FIXME: What if data is more than one packet? Make the UI create packets upto a certain size
+        console.log(payload[entry]); //"aa", bb", "cc"
+        var outgoingInterestName = new ndn.Name(payload[entry]);
+        this.face.expressInterest(outgoingInterestName, this.onData.bind(this),
+                                 this.onTimeout.bind(this));
+
+
+        }
+    }
+
+
+RetrieveData.prototype.onData = function(interest, data) {
+//this handles normal data
+    var payload = data.getContent();
+    var dataName = new ndn.Name(data.getName());
+    var segment = dataName.get(-1).toSegment();
+    var truncatedName = dataName.getPrefix(-1);
+    var dataFileName = truncatedName.toUri().replace(/\//g, "_");
+    //how do you data is from the UI? Last component is UI
+    var lastComponent = new ndn.Name(truncatedName.getSubName(-1));
+
+    //keep a hashmap of data names and check if data is out of order
+    //if so, drop and rerequest
+
+    //fetch the actual data
+    if (segment === 0){
+        this.retransmissionDict[dataName] = 0;
+        console.log("Logged data segment" + dataName);
+        fs.writeFile(dataFileName, payload, function(err){
+            if(err){
+                return console.log(err);
+            }
+        });
+    }
+    else{
+        fs.appendFile(dataFileName, payload, function(err){
+            if(err){
+                return console.log(err);
+            }
+        });
+    }
+
+    if (data.getMetaInfo().getFinalBlockID() == data.getName()[-1]){
+        fs.close(dataFileName);
+        console.log("Closed file" + dataFileName);
+    }
+    else{
+        //if out of order segment, rerequest
+        if (segment - this.retransmissionDict[dataName] > 1){
+            var reexpressInterest = truncatedName.appendSegment(this.retransmissionDict[dataName] + 1);
+            this.face.expressInterest(reexpressInterest, this.onData.bind(this), this.onTimeout.bind(this));
+        }
+        else{
+            this.retransmissionDict[dataName] = segment;
+            var nextName = truncatedName.appendSegment(segment + this.pipelineSize);
+            this.face.expressInterest(nextName, this.onData.bind(this), this.onTimeout.bind(this));
+        }
+    }
+
+}
+
+RetrieveData.prototype.onTimeout = function(interest) {
+    var dupInterestName = interest.getName().toUri();
+    console.log("Interest timeout for : " + dupInterestName);
+
+    if(!Boolean(this.timeoutDict.hasOwnProperty(dupInterestName))){
+        this.timeoutDict[dupInterestName] = 1;
+        console.log("Logged timeout Interest" + dupInterestName);
+    }
+    if(this.timeoutDict[dupInterestName]!== 3){
+        this.timeoutDict[dupInterestName] = this.timeoutDict[dupInterestName]++;
+        console.log("Retry " + dupInterestName);
+        this.face.expressInterest(interest, this.onData.bind(this), this.onTimeout.bind(this));
+    }
+    else{
+        console.log("No data received for " + dupInterestName + ", giving up");
+    }
+}
+
+RetrieveData.prototype.onRegisterFailed = function(prefix) {
+    console.log("Registration failed for URI: " + prefix.toUri() + " Closing face");
+    this.face.close();
+ }
+
+
+var main = function(){
+    var run = new RetrieveData();
+}
+
+if (require.main === module) {
+    main();
+}