Support for Görli and Polygon Mumbai dev-chains

[tafonina]

Subject of the issue

As the ropsten network is deprecated - the front-end and back-end should be able to support other alternative chains - goerli or polygon-mumbai

Expected behaviour

Blockchain network should depend on the setting BlockchainNet (System settings->Blockchain Settings) or on env file initially. By default the goerli testnet should be used. Front end and backend should be able to process interactions with smart contracts according to defined Blockchain network name

• goerli
• mainnet
• polygon-mumbai
• polygon-mainnet (after smart contracts deploy)

[loleg]

Thanks @tafonina - so the test of this is a login through MetaMask through goerli? Any other ways to test?

[tafonina]

@loleg change the setting BlockchainNet (System settings->Blockchain Settings) to one of the supported (for example goerli or polygon-mumbai), then use in metamask this chain for signing transaction (for example registration document in blockchain during workflow)

[loleg]

We have tested this, for new Ethereum chains, and it works since the December patch. We are still working on Polygon support so am renaming the issue. We will create a separate issue once we are ready to move to production chains.