diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index e5fb78a..5badcd1 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.1.22
+current_version = 0.1.25
 
 [bumpversion:file:package.json]
 
diff --git a/package-lock.json b/package-lock.json
index 4eef576..6876e7f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@oceanprotocol/squid",
-  "version": "0.1.22",
+  "version": "0.1.26",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -10,20 +10,20 @@
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       "dev": true,
       "requires": {
-        "@babel/highlight": "7.0.0"
+        "@babel/highlight": "^7.0.0"
       }
     },
     "@babel/generator": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.1.6.tgz",
-      "integrity": "sha512-brwPBtVvdYdGxtenbQgfCdDPmtkmUBZPjUoK5SXJEBuHaA5BCubh9ly65fzXz7R6o5rA76Rs22ES8Z+HCc0YIQ==",
+      "version": "7.1.3",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.1.3.tgz",
+      "integrity": "sha512-ZoCZGcfIJFJuZBqxcY9OjC1KW2lWK64qrX1o4UYL3yshVhwKFYgzpWZ0vvtGMNJdTlvkw0W+HR1VnYN8q3QPFQ==",
       "dev": true,
       "requires": {
-        "@babel/types": "7.1.6",
-        "jsesc": "2.5.2",
-        "lodash": "4.17.11",
-        "source-map": "0.5.7",
-        "trim-right": "1.0.1"
+        "@babel/types": "^7.1.3",
+        "jsesc": "^2.5.1",
+        "lodash": "^4.17.10",
+        "source-map": "^0.5.0",
+        "trim-right": "^1.0.1"
       }
     },
     "@babel/helper-function-name": {
@@ -32,9 +32,9 @@
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       "dev": true,
       "requires": {
-        "@babel/helper-get-function-arity": "7.0.0",
-        "@babel/template": "7.1.2",
-        "@babel/types": "7.1.6"
+        "@babel/helper-get-function-arity": "^7.0.0",
+        "@babel/template": "^7.1.0",
+        "@babel/types": "^7.0.0"
       }
     },
     "@babel/helper-get-function-arity": {
@@ -43,7 +43,7 @@
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       "dev": true,
       "requires": {
-        "@babel/types": "7.1.6"
+        "@babel/types": "^7.0.0"
       }
     },
     "@babel/helper-split-export-declaration": {
@@ -52,7 +52,7 @@
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       "dev": true,
       "requires": {
-        "@babel/types": "7.1.6"
+        "@babel/types": "^7.0.0"
       }
     },
     "@babel/highlight": {
@@ -61,15 +61,23 @@
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       "dev": true,
       "requires": {
-        "chalk": "2.4.1",
-        "esutils": "2.0.2",
-        "js-tokens": "4.0.0"
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      },
+      "dependencies": {
+        "js-tokens": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+          "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+          "dev": true
+        }
       }
     },
     "@babel/parser": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.1.6.tgz",
-      "integrity": "sha512-dWP6LJm9nKT6ALaa+bnL247GHHMWir3vSlZ2+IHgHgktZQx0L3Uvq2uAWcuzIe+fujRsYWBW2q622C5UvGK9iQ==",
+      "version": "7.1.3",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.1.3.tgz",
+      "integrity": "sha512-gqmspPZOMW3MIRb9HlrnbZHXI1/KHTOroBwN1NcLL6pWxzqzEKGvRTq0W/PxS45OtQGbaFikSQpkS5zbnsQm2w==",
       "dev": true
     },
     "@babel/template": {
@@ -78,56 +86,55 @@
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       "dev": true,
       "requires": {
-        "@babel/code-frame": "7.0.0",
-        "@babel/parser": "7.1.6",
-        "@babel/types": "7.1.6"
+        "@babel/code-frame": "^7.0.0",
+        "@babel/parser": "^7.1.2",
+        "@babel/types": "^7.1.2"
       }
     },
     "@babel/traverse": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.1.6.tgz",
-      "integrity": "sha512-CXedit6GpISz3sC2k2FsGCUpOhUqKdyL0lqNrImQojagnUMXf8hex4AxYFRuMkNGcvJX5QAFGzB5WJQmSv8SiQ==",
+      "version": "7.1.4",
+      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.1.4.tgz",
+      "integrity": "sha512-my9mdrAIGdDiSVBuMjpn/oXYpva0/EZwWL3sm3Wcy/AVWO2eXnsoZruOT9jOGNRXU8KbCIu5zsKnXcAJ6PcV6Q==",
       "dev": true,
       "requires": {
-        "@babel/code-frame": "7.0.0",
-        "@babel/generator": "7.1.6",
-        "@babel/helper-function-name": "7.1.0",
-        "@babel/helper-split-export-declaration": "7.0.0",
-        "@babel/parser": "7.1.6",
-        "@babel/types": "7.1.6",
-        "debug": "4.1.0",
-        "globals": "11.9.0",
-        "lodash": "4.17.11"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.0.tgz",
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-          "dev": true,
-          "requires": {
-            "ms": "2.1.1"
-          }
-        },
-        "ms": {
-          "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
-          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
-          "dev": true
-        }
+        "@babel/code-frame": "^7.0.0",
+        "@babel/generator": "^7.1.3",
+        "@babel/helper-function-name": "^7.1.0",
+        "@babel/helper-split-export-declaration": "^7.0.0",
+        "@babel/parser": "^7.1.3",
+        "@babel/types": "^7.1.3",
+        "debug": "^3.1.0",
+        "globals": "^11.1.0",
+        "lodash": "^4.17.10"
       }
     },
     "@babel/types": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.1.6.tgz",
-      "integrity": "sha512-DMiUzlY9DSjVsOylJssxLHSgj6tWM9PRFJOGW/RaOglVOK9nzTxoOMfTfRQXGUCUQ/HmlG2efwC+XqUEJ5ay4w==",
+      "version": "7.1.3",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.1.3.tgz",
+      "integrity": "sha512-RpPOVfK+yatXyn8n4PB1NW6k9qjinrXrRR8ugBN8fD6hCy5RXI6PSbVqpOJBO9oSaY7Nom4ohj35feb0UR9hSA==",
       "dev": true,
       "requires": {
-        "esutils": "2.0.2",
-        "lodash": "4.17.11",
-        "to-fast-properties": "2.0.0"
+        "esutils": "^2.0.2",
+        "lodash": "^4.17.10",
+        "to-fast-properties": "^2.0.0"
       }
     },
+    "@mrmlnc/readdir-enhanced": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz",
+      "integrity": "sha512-bPHp6Ji8b41szTOcaP63VlnbbO5Ny6dwAATtY6JTjh5N2OLrb5Qk/Th5cRkRQhkWCt+EJsYrNB0MiL+Gpn6e3g==",
+      "dev": true,
+      "requires": {
+        "call-me-maybe": "^1.0.1",
+        "glob-to-regexp": "^0.3.0"
+      }
+    },
+    "@nodelib/fs.stat": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz",
+      "integrity": "sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw==",
+      "dev": true
+    },
     "@oceanprotocol/keeper-contracts": {
       "version": "0.3.25",
       "resolved": "https://registry.npmjs.org/@oceanprotocol/keeper-contracts/-/keeper-contracts-0.3.25.tgz",
@@ -138,7 +145,7 @@
       "resolved": "https://registry.npmjs.org/@oceanprotocol/secret-store-client/-/secret-store-client-0.0.12.tgz",
       "integrity": "sha512-qQMIZNwEgL6W93e3ryUVELgRxDO1WzaN7Dj2Kvhjkk/miwXmZXRFyf2p3fh0UESKwHiFGK6re3YA55fO43Dvnw==",
       "requires": {
-        "node-fetch": "2.3.0"
+        "node-fetch": "^2.3.0"
       }
     },
     "@types/bn.js": {
@@ -146,7 +153,7 @@
       "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-4.11.3.tgz",
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       "requires": {
-        "@types/node": "10.12.10"
+        "@types/node": "*"
       }
     },
     "@types/chai": {
@@ -155,9 +162,15 @@
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       "dev": true
     },
+    "@types/estree": {
+      "version": "0.0.39",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
+      "integrity": "sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==",
+      "dev": true
+    },
     "@types/events": {
       "version": "1.2.0",
-      "resolved": "http://registry.npmjs.org/@types/events/-/events-1.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/@types/events/-/events-1.2.0.tgz",
       "integrity": "sha512-KEIlhXnIutzKwRbQkGWb/I4HFqBuUykAdHgDED6xqwXJfONCjF5VoE0cXEiurh3XauygxzeDzgtXUqvLkxFzzA==",
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@@ -167,7 +180,7 @@
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       "dev": true,
       "requires": {
-        "@types/node": "10.12.10"
+        "@types/node": "*"
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@@ -176,9 +189,9 @@
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       "requires": {
-        "@types/events": "1.2.0",
-        "@types/minimatch": "3.0.3",
-        "@types/node": "10.12.10"
+        "@types/events": "*",
+        "@types/minimatch": "*",
+        "@types/node": "*"
       }
     },
     "@types/handlebars": {
@@ -194,9 +207,9 @@
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     "@types/lodash": {
-      "version": "4.14.118",
-      "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.118.tgz",
-      "integrity": "sha512-iiJbKLZbhSa6FYRip/9ZDX6HXhayXLDGY2Fqws9cOkEQ6XeKfaxB0sC541mowZJueYyMnVUmmG+al5/4fCDrgw==",
+      "version": "4.14.117",
+      "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.117.tgz",
+      "integrity": "sha512-xyf2m6tRbz8qQKcxYZa7PA4SllYcay+eh25DN3jmNYY6gSTL7Htc/bttVdkqj2wfJGbeWlQiX8pIyJpKU+tubw==",
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     "@types/marked": {
@@ -228,8 +241,8 @@
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       "dev": true,
       "requires": {
-        "@types/glob": "7.1.1",
-        "@types/node": "10.12.10"
+        "@types/glob": "*",
+        "@types/node": "*"
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     "@webassemblyjs/ast": {
@@ -296,7 +309,7 @@
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       "requires": {
-        "@xtuc/ieee754": "1.2.0"
+        "@xtuc/ieee754": "^1.2.0"
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     "@webassemblyjs/leb128": {
@@ -401,7 +414,7 @@
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       "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
       "requires": {
-        "mime-types": "2.1.21",
+        "mime-types": "~2.1.18",
         "negotiator": "0.6.1"
       }
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@@ -415,7 +428,7 @@
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       "requires": {
-        "acorn": "5.7.3"
+        "acorn": "^5.0.0"
       }
     },
     "aes-js": {
@@ -428,12 +441,18 @@
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       "requires": {
-        "fast-deep-equal": "2.0.1",
-        "fast-json-stable-stringify": "2.0.0",
-        "json-schema-traverse": "0.4.1",
-        "uri-js": "4.2.2"
+        "fast-deep-equal": "^2.0.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
       }
     },
+    "ajv-errors": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/ajv-errors/-/ajv-errors-1.0.0.tgz",
+      "integrity": "sha1-7PAh+hCP0X37Xms4Py3SM+Mf/Fk=",
+      "dev": true
+    },
     "ajv-keywords": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.2.0.tgz",
@@ -449,7 +468,7 @@
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       "requires": {
-        "color-convert": "1.9.3"
+        "color-convert": "^1.9.0"
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@@ -462,8 +481,8 @@
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       "requires": {
-        "micromatch": "3.1.10",
-        "normalize-path": "2.1.1"
+        "micromatch": "^3.1.4",
+        "normalize-path": "^2.1.1"
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@@ -477,7 +496,7 @@
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       "dev": true,
       "requires": {
-        "sprintf-js": "1.0.3"
+        "sprintf-js": "~1.0.2"
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@@ -500,6 +519,21 @@
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       "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
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+    "array-union": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
+      "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
+      "dev": true,
+      "requires": {
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+      }
+    },
+    "array-uniq": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/array-uniq/-/array-uniq-1.0.3.tgz",
+      "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=",
+      "dev": true
+    },
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@@ -516,7 +550,7 @@
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       "requires": {
-        "safer-buffer": "2.1.2"
+        "safer-buffer": "~2.1.0"
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     "asn1.js": {
@@ -524,9 +558,9 @@
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       "requires": {
-        "bn.js": "4.11.8",
-        "inherits": "2.0.3",
-        "minimalistic-assert": "1.0.1"
+        "bn.js": "^4.0.0",
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0"
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@@ -544,7 +578,7 @@
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-          "resolved": "http://registry.npmjs.org/util/-/util-0.10.3.tgz",
+          "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
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@@ -574,7 +608,7 @@
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@@ -4303,39 +4532,45 @@
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+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.0.tgz",
+      "integrity": "sha512-H3dGVdGvW2H8bnYpIDc3u3LH8Wue3Qh+Zto6aXXFzvESkTVT6rAfKR6tR/+coaUvxs8yHtmNV0uioBF62ZGSTg==",
       "requires": {
-        "async-limiter": "1.0.0"
+        "async-limiter": "~1.0.0"
       }
     },
     "xhr": {
@@ -7706,10 +8426,10 @@
       "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.5.0.tgz",
       "integrity": "sha512-4nlO/14t3BNUZRXIXfXe+3N6w3s1KoxcJUUURctd64BLRe67E4gRwp4PjywtDY72fXpZ1y6Ch0VZQRY/gMPzzQ==",
       "requires": {
-        "global": "4.3.2",
-        "is-function": "1.0.1",
-        "parse-headers": "2.0.1",
-        "xtend": "4.0.1"
+        "global": "~4.3.0",
+        "is-function": "^1.0.1",
+        "parse-headers": "^2.0.0",
+        "xtend": "^4.0.0"
       }
     },
     "xhr-request": {
@@ -7717,13 +8437,13 @@
       "resolved": "https://registry.npmjs.org/xhr-request/-/xhr-request-1.1.0.tgz",
       "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==",
       "requires": {
-        "buffer-to-arraybuffer": "0.0.5",
-        "object-assign": "4.1.1",
-        "query-string": "5.1.1",
-        "simple-get": "2.8.1",
-        "timed-out": "4.0.1",
-        "url-set-query": "1.0.0",
-        "xhr": "2.5.0"
+        "buffer-to-arraybuffer": "^0.0.5",
+        "object-assign": "^4.1.1",
+        "query-string": "^5.0.1",
+        "simple-get": "^2.7.0",
+        "timed-out": "^4.0.1",
+        "url-set-query": "^1.0.0",
+        "xhr": "^2.0.4"
       }
     },
     "xhr-request-promise": {
@@ -7731,7 +8451,7 @@
       "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz",
       "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
       "requires": {
-        "xhr-request": "1.1.0"
+        "xhr-request": "^1.0.1"
       }
     },
     "xhr2-cookies": {
@@ -7739,7 +8459,7 @@
       "resolved": "https://registry.npmjs.org/xhr2-cookies/-/xhr2-cookies-1.1.0.tgz",
       "integrity": "sha1-fXdEnQmZGX8VXLc7I99yUF7YnUg=",
       "requires": {
-        "cookiejar": "2.1.2"
+        "cookiejar": "^2.1.1"
       }
     },
     "xmlhttprequest": {
@@ -7772,58 +8492,18 @@
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
       "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
       "requires": {
-        "cliui": "4.1.0",
-        "decamelize": "1.2.0",
-        "find-up": "3.0.0",
-        "get-caller-file": "1.0.3",
-        "os-locale": "3.0.1",
-        "require-directory": "2.1.1",
-        "require-main-filename": "1.0.1",
-        "set-blocking": "2.0.0",
-        "string-width": "2.1.1",
-        "which-module": "2.0.0",
-        "y18n": "4.0.0",
-        "yargs-parser": "11.1.1"
-      },
-      "dependencies": {
-        "find-up": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
-          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
-          "requires": {
-            "locate-path": "3.0.0"
-          }
-        },
-        "locate-path": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
-          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
-          "requires": {
-            "p-locate": "3.0.0",
-            "path-exists": "3.0.0"
-          }
-        },
-        "p-limit": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.0.0.tgz",
-          "integrity": "sha512-fl5s52lI5ahKCernzzIyAP0QAZbGIovtVHGwpcu1Jr/EpzLVDI2myISHwGqK7m8uQFugVWSrbxH7XnhGtvEc+A==",
-          "requires": {
-            "p-try": "2.0.0"
-          }
-        },
-        "p-locate": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
-          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
-          "requires": {
-            "p-limit": "2.0.0"
-          }
-        },
-        "p-try": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.0.0.tgz",
-          "integrity": "sha512-hMp0onDKIajHfIkdRk3P4CdCmErkYAxxDtP3Wx/4nZ3aGlau2VKh3mZpcuFkH27WQkL/3WBCPOktzA9ZOAnMQQ=="
-        }
+        "cliui": "^4.0.0",
+        "decamelize": "^1.2.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^1.0.1",
+        "os-locale": "^3.0.0",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^1.0.1",
+        "set-blocking": "^2.0.0",
+        "string-width": "^2.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^3.2.1 || ^4.0.0",
+        "yargs-parser": "^11.1.1"
       }
     },
     "yargs-parser": {
@@ -7831,8 +8511,8 @@
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
       "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
       "requires": {
-        "camelcase": "5.0.0",
-        "decamelize": "1.2.0"
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
       }
     },
     "yauzl": {
@@ -7840,8 +8520,8 @@
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
       "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
       "requires": {
-        "buffer-crc32": "0.2.13",
-        "fd-slicer": "1.1.0"
+        "buffer-crc32": "~0.2.3",
+        "fd-slicer": "~1.1.0"
       }
     },
     "yn": {
diff --git a/package.json b/package.json
index 5004e07..250db18 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,9 @@
 {
   "name": "@oceanprotocol/squid",
-  "version": "0.1.22",
+  "version": "0.1.26",
   "description": "JavaScript client library for Ocean Protocol",
-  "main": "dist/squid.js",
+  "main": "./dist/node/squid.js",
+  "browser": "./dist/browser/squid.cjs2.min.js",
   "scripts": {
     "test": "mocha",
     "test:watch": "mocha -w --watch-extensions js,ts,json",
@@ -10,7 +11,9 @@
     "clean": "rm -rf ./dist/ ./doc/ ./coverage ./.nyc_output",
     "lint": "tslint -c tslint.json 'src/**/*.ts' 'test/**/*.ts'",
     "start": "npm link @oceanprotocol/keeper-contracts @oceanprotocol/secret-store-client && npm run build:watch",
-    "build": "npm run clean && npm run lint && tsc && npm run doc",
+    "build": "npm run clean && npm run build:tsc && npm run build:dist",
+    "build:tsc": "tsc",
+    "build:dist": "cross-env NODE_ENV=production webpack",
     "build:watch": "tsc -w",
     "doc": "typedoc --mode modules --out ./doc/ ./src/",
     "run": "ts-node",
@@ -66,12 +69,20 @@
     "@types/mocha": "^5.2.5",
     "@types/node": "^10.12.10",
     "chai": "^4.2.0",
+    "cross-env": "^5.2.0",
     "mocha": "^5.2.0",
     "nyc": "^13.1.0",
+    "rollup": "^0.67.3",
     "source-map-support": "^0.5.9",
+    "ts-loader": "^5.3.0",
     "ts-node": "^7.0.1",
     "tslint": "^5.11.0",
     "typedoc": "^0.13.0",
-    "typescript": "^3.1.6"
+    "typescript": "^3.1.6",
+    "uglify-js": "^3.4.9",
+    "webpack": "^4.26.1",
+    "webpack-cli": "^3.1.2",
+    "webpack-concat-plugin": "^3.0.0",
+    "webpack-merge": "^4.1.4"
   }
 }
diff --git a/plugins/add-vendors-plugin.js b/plugins/add-vendors-plugin.js
new file mode 100644
index 0000000..be75bcd
--- /dev/null
+++ b/plugins/add-vendors-plugin.js
@@ -0,0 +1,31 @@
+const { ConcatSource } = require('webpack-sources')
+
+module.exports = class AddVendorsPlugin {
+    constructor(base) {
+        this.base = base
+    }
+
+    apply(compiler) {
+        compiler.hooks.emit.tapAsync(
+            `AddVendorsPlugin ${this.base}`,
+            (compilation, callback) => {
+                const main = compilation.assets[`main.${this.base}`]
+                const mainMap = compilation.assets[`main.${this.base}.map`]
+                const vendor = compilation.assets[`vendors.${this.base}`]
+
+                if (main && vendor) {
+                    const compiledAsset = new ConcatSource(main.children[0])
+                    compiledAsset.add(vendor)
+                    compiledAsset.add(main.children[1])
+                    compilation.assets = {}
+                    compilation.assets[this.base] = compiledAsset
+                } else if (main && mainMap) {
+                    compilation.assets = {}
+                    compilation.assets[this.base] = main
+                    compilation.assets[`${this.base}.map`] = mainMap
+                }
+                callback()
+            }
+        )
+    }
+}
diff --git a/src/keeper/ContractHandler.ts b/src/keeper/ContractHandler.ts
index 88fbc06..91f2e0f 100644
--- a/src/keeper/ContractHandler.ts
+++ b/src/keeper/ContractHandler.ts
@@ -28,7 +28,7 @@ export default class ContractHandler {
     private static async load(what: string, where: string): Promise<Contract> {
         const web3 = Web3Provider.getWeb3()
         // Logger.log("Loading", what, "from", where)
-        const artifact = require(`@oceanprotocol/keeper-contracts/artifacts/${what}.${where}`)
+        const artifact = require(`@oceanprotocol/keeper-contracts/artifacts/${what}.${where}.json`)
         // Logger.log('Loaded artifact', artifact)
         const code = await web3.eth.getCode(artifact.address)
         if (code === "0x0") {
diff --git a/src/ocean/IdGenerator.ts b/src/ocean/IdGenerator.ts
index 974a2dc..a740f6d 100644
--- a/src/ocean/IdGenerator.ts
+++ b/src/ocean/IdGenerator.ts
@@ -1,4 +1,4 @@
-import * as v4 from "uuid/v4"
+import { v4 } from "uuid"
 
 export default class IdGenerator {
     public static generateId(): string {
diff --git a/tsconfig.json b/tsconfig.json
index 872cfe0..111e8db 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "resolveJsonModule": true,
+    "moduleResolution": "node",
     "lib": [
       "es6",
       "es7"
@@ -11,7 +12,7 @@
     "noImplicitAny": false,
     "removeComments": true,
     "preserveConstEnums": true,
-    "outDir": "./dist/",
+    "outDir": "./dist/node/",
     "rootDir": "./src/",
     "sourceMap": true
   },
diff --git a/webpack.common.js b/webpack.common.js
new file mode 100644
index 0000000..fc00627
--- /dev/null
+++ b/webpack.common.js
@@ -0,0 +1,21 @@
+'use strict'
+
+const { paths } = require('./webpack.parts.js')
+
+module.exports = {
+    entry: paths.entry,
+    mode: 'none',
+    module: {
+        rules: [
+            { test: /\.tsx?$/, loader: "ts-loader" }
+        ]
+    },
+    optimization: {
+        minimize: true,
+        noEmitOnErrors: true
+    },
+    resolve: {
+        extensions: ['.js','.ts'],
+        modules: ['node_modules'],
+    },
+}
diff --git a/webpack.config.js b/webpack.config.js
new file mode 100644
index 0000000..935a7af
--- /dev/null
+++ b/webpack.config.js
@@ -0,0 +1,28 @@
+'use strict'
+
+const PRODUCTION = process.env.NODE_ENV === 'production'
+
+const common = require('./webpack.common.js')
+
+const { outputs } = require('./webpack.parts.js')
+
+// '[libraryTarget]': [file extension]
+const OUTPUT_MAPPING = {
+    'amd': 'amd',
+    'commonjs': 'cjs',
+    'commonjs2': 'cjs2',
+    'umd': 'umd',
+    'window': 'window',
+}
+
+const OVERRIDES = {
+    // optimization: {
+    //     minimize: false
+    // }
+}
+
+if (PRODUCTION) {
+    module.exports = outputs(common, 'production', OUTPUT_MAPPING, OVERRIDES)
+} else {
+    module.exports = outputs(common, 'development', OUTPUT_MAPPING, OVERRIDES)
+}
diff --git a/webpack.development.js b/webpack.development.js
new file mode 100644
index 0000000..d4beb8b
--- /dev/null
+++ b/webpack.development.js
@@ -0,0 +1,28 @@
+'use strict'
+
+const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
+
+module.exports = {
+    devtool: 'inline-source-map',
+    optimization: {
+        minimizer: [
+            new UglifyJsPlugin({
+                test: /vendor/,
+                sourceMap: false,
+            }),
+            new UglifyJsPlugin({
+                test: /^((?!(vendor)).)*.js$/,
+                sourceMap: true,
+            })
+        ],
+        splitChunks: {
+            cacheGroups: {
+                commons: {
+                    test: /[\\/]node_modules[\\/]/,
+                    name: 'vendors',
+                    chunks: 'all'
+                }
+            }
+        },
+    },
+}
diff --git a/webpack.parts.js b/webpack.parts.js
new file mode 100644
index 0000000..dc94126
--- /dev/null
+++ b/webpack.parts.js
@@ -0,0 +1,53 @@
+'use strict'
+
+const path = require('path')
+const merge = require('webpack-merge')
+
+const development = require('./webpack.development.js')
+const production = require('./webpack.production.js')
+
+const AddVendorsPlugin = require('./plugins/add-vendors-plugin')
+
+const paths = {
+    entry: path.resolve(__dirname, './src/squid.ts'),
+    bundle: path.resolve(__dirname, 'dist/browser'),
+}
+
+const outputs = (base, env, mapping, overrides) => {
+    const collection = []
+    const library = 'squid'
+    const windowLibrary = 'Squid'
+
+    let environment = development
+    let ext = 'js'
+
+    if (env === 'production') {
+        environment = production
+        ext = `min.${ext}`
+    }
+
+    Object.entries(mapping).forEach(([target, extension]) => {
+        const filename = `[name].${library}.${extension}.${ext}`
+
+        const compiled = {
+            output: {
+                filename: filename,
+                library: target === 'window' ? windowLibrary : library,
+                libraryTarget: target,
+                path: paths.bundle
+            },
+            plugins: [
+                new AddVendorsPlugin(`${library}.${extension}.${ext}`)
+            ]
+        }
+
+        collection.push(merge(base, environment, compiled, overrides))
+    })
+
+    return collection
+}
+
+module.exports = {
+    outputs,
+    paths
+}
diff --git a/webpack.production.js b/webpack.production.js
new file mode 100644
index 0000000..4b82041
--- /dev/null
+++ b/webpack.production.js
@@ -0,0 +1,5 @@
+'use strict'
+
+module.exports = {
+    devtool: 'source-map',
+}