错误:使用INFURA时JSON RPC响应无效

Question

获取错误:在实现ethereum块链代码时，我得到的错误是:使用INFURA时的无效JSON RPC响应

下面的附加错误日志请帮助

Error: Invalid JSON RPC response: ""
    at Object.InvalidResponse (/home/joshi/Desktop/inbox/node_modules/truffle-hdwallet-provider/node_modules/web3/lib/web3/errors.js:35:16)
    at XMLHttpRequest.request.onreadystatechange (/home/joshi/Desktop/inbox/node_modules/truffle-hdwallet-provider/node_modules/web3/lib/web3/httpprovider.js:115:32)
    at XMLHttpRequestEventTarget.dispatchEvent (/home/joshi/Desktop/inbox/node_modules/xhr2/lib/xhr2.js:64:18)
    at XMLHttpRequest._setReadyState (/home/joshi/Desktop/inbox/node_modules/xhr2/lib/xhr2.js:354:12)
    at XMLHttpRequest._onHttpRequestError (/home/joshi/Desktop/inbox/node_modules/xhr2/lib/xhr2.js:544:12)
    at ClientRequest.<anonymous> (/home/joshi/Desktop/inbox/node_modules/xhr2/lib/xhr2.js:414:24)
    at emitOne (events.js:116:13)
    at ClientRequest.emit (events.js:211:7)
    at TLSSocket.socketErrorListener (_http_client.js:387:9)
    at emitOne (events.js:116:13)
    at TLSSocket.emit (events.js:211:7)
    at emitErrorNT (internal/streams/destroy.js:64:8)
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)

Answer 1

如果你不发布更多的信息，比如一小块代码，就很难理解正在发生的事情。

你应该尝试的是：

在每个链接到呋喃api删除"/v3“部分的网址。

由此：

const provider = new HDWalletProvider(mnemonic,
'https://rinkeby.infura.io/v3/project_id');

对此：

const provider = new HDWalletProvider(mnemonic,
    'https://rinkeby.infura.io/project_id');

希望这能有所帮助。

Answer 2

不要在infura中使用www和/v3，它需要在URI中使用https。例如：

https://rinkeby.infura.io/project_id