Login to your Atlassian Developer Account and head to your Jira Apps
Click Create button and choose OAuth 2.0 Integration
Fill the app name and tick the requirment checkbox
Go to Permissions section and add Jira Api
Configure and edit the scoope of Jira platform REST API, then tick for View Jira issue data and save it
Head to Authorization section and fill the callback with your domain
Go to Distribution section, change the distribution status to sharing with fill the requirments below
Go to setting section and copy your client id and client secret
Add your client id and client secret to your enviroment variable or export it to your .bashrc if you are using bash, use JIRA_CLIENT_ID and JIRA_SECRET as the variable name
You can run the project by execute flutter run web --dart-define=JIRA_CLIENT_ID=$JIRA_CLIENT_ID --dart-define=JIRA_SECRET=$JIRA_SECRET to your terminal or cmd
Run flutter build web --release --dart-define=JIRA_CLIENT_ID=$JIRA_CLIENT_ID --dart-define=JIRA_SECRET=$JIRA_SECRET and wait patiently for it to be finished
Then you can deploy build/web folder to your hosting