Truffle + INFURA for deployment

Question

I've recently started to use Truffle to automate/speed up my development.

As I'm still getting the grasp of it I've come up with a barrier when trying to use INFURA for migrations.

INFURA nodes don't answer to blockFilter requests and as so migrations in Truffle don't work as stated in their Truffle + INFURA integration post.

Any ideas on how to make this work besides changing Truffle's code to polling instead of receiving events? :)

EDIT: After searching for any solution to validate deployment of contracts I just settled for Augur's great public node that exposes filter methods.

Answer 1

INFURA nodes are public and receive a lot of traffic, and that is the reason that some JSON-RPC methods need to be disallowed. However, we're working on a solution that will make all methods available.

A while ago we modified our architecture, so load balancers are not the issue.

I'll check with the Truffle team about their use of filters and update this post.

Answer 2

Adding a FilterSubrovider from web3-provider-engine to the engine in your truffle.js will allow you to deploy the contract to Ropsten, I have not tried this on the mainnet.

const FilterSubprovider = require('web3-provider-engine/subproviders/filters.js')
engine.addProvider(new FilterSubprovider())

Answer 3

Infura doesn't give you your own node. Instead they're running a load-balancer in front of a pool of shared nodes. That's why they disallow state-modifying calls.

I would suggest you to look into: https://github.com/MetaMask/provider-engine It allows you to handle some RPC calls completely client-side.