GITC-616: fetch gas price from polygon gas tracker (#9733)

chibie · web-flow · commit 2ce8e89bfea7 · 2021-11-30T13:26:09.000+05:30
* fetch gas price from polygon gas tracker

* pre-commit linting

* revamp

* rename env
diff --git a/app/app/local.env b/app/app/local.env
@@ -65,6 +65,7 @@ GIPHY_KEY=
 YOUTUBE_API_KEY=
 VIEW_BLOCK_API_KEY=
 ETHERSCAN_API_KEY=
+POLYGONSCAN_API_KEY=
 FORTMATIC_LIVE_KEY=
 FORTMATIC_TEST_KEY=
 XINFIN_API_KEY=
diff --git a/app/app/settings.py b/app/app/settings.py
@@ -52,6 +52,7 @@
 GIPHY_KEY = env('GIPHY_KEY', default='LtaY19ToaBSckiLU4QjW0kV9nIP75NFy')
 YOUTUBE_API_KEY = env('YOUTUBE_API_KEY', default='YOUR-SupEr-SecRet-YOUTUBE-KeY')
 ETHERSCAN_API_KEY = env('ETHERSCAN_API_KEY', default='YOUR-ETHERSCAN-KEY')
+POLYGONSCAN_API_KEY = env('POLYGONSCAN_API_KEY', default='YOUR-POLYGONSCAN-KEY')
 VIEW_BLOCK_API_KEY = env('VIEW_BLOCK_API_KEY', default='YOUR-VIEW-BLOCK-KEY')
 FORTMATIC_LIVE_KEY = env('FORTMATIC_LIVE_KEY', default='YOUR-SupEr-SecRet-LiVe-FoRtMaTiC-KeY')
 FORTMATIC_TEST_KEY = env('FORTMATIC_TEST_KEY', default='YOUR-SupEr-SecRet-TeSt-FoRtMaTiC-KeY')
diff --git a/app/assets/v2/js/cart-ethereum-polygon.js b/app/assets/v2/js/cart-ethereum-polygon.js
@@ -483,7 +483,7 @@ Vue.component('grantsCartEthereumPolygon', {
         // Check if user has enough MATIC to cover gas costs
         if (this.polygon.estimatedGasCost) {
           const gasFeeInWei = web3.utils.toWei(
-            (this.polygon.estimatedGasCost * 2).toString(), 'gwei' // using 2 gwei as gas price
+            (this.polygon.estimatedGasCost * Number(document.polygonGasPrice)).toString(), 'gwei' // using safe gas price
           );
 
           if (userMaticBalance.lt(gasFeeInWei)) {
diff --git a/app/grants/management/commands/fetch_gas_prices.py b/app/grants/management/commands/fetch_gas_prices.py
@@ -0,0 +1,56 @@
+"""
+    Copyright (C) 2021 Gitcoin Core
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+"""
+
+import json
+
+from django.conf import settings
+from django.core.management.base import BaseCommand
+
+import requests
+from economy.models import EncodeAnything
+from perftools.models import JSONStore
+
+
+def polygon():
+    res = requests.get(
+        f"https://api.polygonscan.com/api?module=gastracker&action=gasoracle&apikey={settings.POLYGONSCAN_API_KEY}"
+    )
+    data = res.json()['result']
+    print(data)
+    view = "gas_prices"
+    keyword = "polygon"
+
+    JSONStore.objects.filter(view=view, key=keyword).all().delete()
+    data = json.loads(json.dumps(data, cls=EncodeAnything))
+    JSONStore.objects.create(
+        view=view,
+        key=keyword,
+        data=data,
+    )
+
+
+class Command(BaseCommand):
+
+    help = "get gas prices for networks"
+
+    def handle(self, *args, **options):
+        try:
+            print("Polygon")
+            polygon()
+        except Exception as e:
+            print(e)
diff --git a/app/grants/templates/grants/cart-vue.html b/app/grants/templates/grants/cart-vue.html
@@ -14,7 +14,7 @@
 You should have received a copy of the GNU Affero General Public License
 along with this program. If not, see <http://www.gnu.org/licenses/>.
 {% endcomment %}
-{% load static i18n bundle tz %}
+{% load static i18n bundle tz get_item %}
 <!DOCTYPE html>
   <html lang="en">
 
@@ -218,6 +218,7 @@ <h4 class="font-weight-bold mb-5 my-md-0">Discover Grants</h4>
     <script>
       document.authenticated = {{ authenticated | yesno:"true,false" }};
       document.isFullyVerified = '{{is_fully_verified}}' === 'True';
+      document.polygonGasPrice = "{{ gas_prices|get_item:'polygon' }}"
     </script>
     {% bundle merge_js file qrcode %}
       <script src="qrcode.min.js" base-dir="/node_modules/qrcodejs/"></script>
diff --git a/app/grants/templatetags/grants_extra.py b/app/grants/templatetags/grants_extra.py
@@ -61,14 +61,17 @@ def modulo(num, val):
         return num % val
     return 0
 
+
 @register.simple_tag
 def is_team_member(grant, profile):
     return is_grant_team_member(grant, profile)
 
+
 @register.simple_tag
 def is_grants_path(path):
     return path.lower().startswith('/grants')
 
+
 @register.simple_tag
 def is_favorite(grant, profile):
     if profile:
diff --git a/app/grants/views.py b/app/grants/views.py
@@ -2433,6 +2433,9 @@ def grants_cart_view(request):
         context['is_fully_verified'] = (is_brightid_verified and profile.sms_verification and \
                                             profile.is_poap_verified and profile.is_twitter_verified and \
                                             profile.is_google_verified and profile.is_poh_verified)
+        context['gas_prices'] = {
+            'polygon': JSONStore.objects.get(view='gas_prices', key='polygon').data['SafeGasPrice']
+        }
     else:
         return redirect('/login/github/?next=' + request.get_full_path())
 
diff --git a/app/retail/templatetags/get_item.py b/app/retail/templatetags/get_item.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+"""Define the get_item template tag to allow fetching dict or tuple in templates.
+
+Copyright (C) 2021 Gitcoin Core
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published
+by the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program 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 Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+"""
+from django import template
+
+register = template.Library()
+
+
+@register.filter
+def get_item(container, key):
+    if type(container) is dict:
+        return container.get(key)
+    elif type(container) in (list, tuple):
+        return container[key] if len(container) > key else None
+    return None
diff --git a/scripts/crontab b/scripts/crontab
@@ -61,6 +61,7 @@ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/us
 ## GRANTS
 */3 * * * * cd gitcoin/coin; bash scripts/run_management_command_if_not_already_running.bash sync_pending_contributions >> /var/log/gitcoin/sync_pending_contributions.log  2>&1
 1 */12 * * * cd gitcoin/coin; bash scripts/run_management_command_if_not_already_running.bash send_grants_contributions_emails >> /var/log/gitcoin/send_grants_contributions_emails.log 2>&1
+5 */12 * * * cd gitcoin/coin; bash scripts/run_management_command_if_not_already_running.bash fetch_gas_prices >> /var/log/gitcoin/fetch_gas_prices.log 2>&1
 
 ## GITCOIN MARKETING
 30 */12 * * * cd gitcoin/coin; bash scripts/run_management_command_if_not_already_running.bash sync_mail  >> /var/log/gitcoin/sync_mail.log  2>&1
