Error TypeError: Cannot read property 'bind' of undefined when specifying your own provider in truffle.js

[nosuchip]

truffle-provider/wrapper.js

Line 26 in b9ed5a0

var originalSendAsync = provider.sendAsync.bind(provider);

Prerequisites: having node that serves JSON RPC on secured port (HTTPS).

When specifyng provider following way got error:

      provider: function() {
        const url = (this.schema || 'http') + '://' + this.host + ':' + this.port;
        const provider = new Web3.providers.HttpProvider(url);
        return provider;
      }

[Freyert]

I also see this error when I have:

const Web3 = require('web3');
  
module.exports = {
    networks: {
        petshop: {
            provider: new Web3("https://mynetwork.net"),
            network_id: "*"

        }
    }
};

Using node --inspect-brk /xxxx/bin/truffle migrate --network petshop we can see that the provider is not connected. At least for me.

---

Eh, after more poking it seems that web3 does not have a send method.

My version of Web3 that I can run independently of truffle is: ^1.0.0-beta.30
This module has a dependency on: ^0.20.1

---

More poking, the provider is supposed to have a send method

https://github.com/ethereum/web3.js/blob/62dd77c7f43522eb568a001cf4c4df726f8efa69/lib/web3/requestmanager.js#L51

Provider.create() which also "wraps" the provider.

Wrapper expects send to be a top level key, but it is actually inside of provider._provider.

---

OK, so my first problem was that send was undefined. Now I'm at sendAsync.

sendAsync definitely does not exist on the prototype:

JSON.stringify(Object.keys(Object.getPrototypeOf(provider)))
"["_prepareRequest","send"]"

The problem I think is that the module web3-providers-http overwrites the prototype for HttpProvider.

➜  PetShop npm ls web3-providers-http
[email protected] /Users/fultonbyrne/Desktop/PetShop
└─┬ [email protected]
  └─┬ [email protected]
    └─┬ [email protected]
      └── [email protected] 

Something isn't right here . . .

Version 0.19.0 I still have to reference Web3()._provider, but I get this error instead:

Could not connect to your Ethereum client. Please check that your Ethereum client:
    - is running
    - is accepting RPC connections (i.e., "--rpc" option is used in geth)
    - is accessible over the network
    - is properly configured in your Truffle configuration file (truffle.js)

Both methods do exist in 0.19:

JSON.stringify(Object.keys(Object.getPrototypeOf(provider)))
"["prepareRequest","send","sendAsync","isConnected"]"

[Freyert]

@nosuchip here's a summary of what I've found:

1. You must pass in Web3()._provider to the provider field.
2. Newer versions of web3 overwrite the prototype and remove sendAsync. Locking to 0.19 the latest stable release should help you out.
3. I need to hunt down this error message and see how it's checking "connectivity".

---

My personal problem is now:

Occurs when calling net_version.

Invalid JSON RPC response: ""

Which happens here: https://github.com/trufflesuite/truffle-provider/blob/develop/wrapper.js#L69

-_-
{"protocol":"http:","slashes":true,"auth":null,"host":"undefined","port":null,"hostname":"undefined","hash":null,"search":null,"query":null,"pathname":"/:undefined","path":"/:undefined","href":"http://undefined/:undefined"}

[Freyert]

OK, I've got this fixed for myself:

it's pretty much what @nosuchip is doing in his first comment, but on version 0.19