Next.js API路由无法调用Microsoft Azure云函数问题求助

大家好，我最近碰到一个挺奇怪的问题，想请各位帮忙排查一下：

我在尝试从Next.js的API路由里调用Microsoft Azure云函数时，总是触发TypeError: fetch failed错误，具体的报错信息显示连接被拒绝了（connect ECONNREFUSED ::1:7071）。但诡异的是，直接把这个URL在浏览器里打开，却能正常获取到响应，完全没问题。

具体错误信息 #

TypeError: fetch failed
at Object.fetch (node:internal/deps/undici/undici:14062:11)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
{ cause: Error: connect ECONNREFUSED ::1:7071
at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1487:16)      at
TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
errno: -4078,
code: 'ECONNREFUSED',
syscall: 'connect',
address: '::1',
port: 7071   } }

我的Next.js API路由代码 #

export async function GET(request: Request) {
try {
// Connect to mcrft azure func endpoint
const response = await fetch(
`${process.env.VERCEL_URL || "http://localhost:7071"
}/api/getChatGPTSuggestion`,
{
cache: "no-store",
}
);
const textData = await response.text();
return new Response(JSON.stringify(textData.trim()), {
status: 200,
});
} catch (error) {
console.log("error inside get route", error)
if (error instanceof Error) {
return new Response(error.message, { status: 500 });
}
return new Response("Internal Server Error", { status: 500 });
}
}

Azure云函数代码 #

const { app } = require('@azure/functions')
const openai = require('../../lib/openai')

app.http('getChatGPTSuggestion', {
methods: ['GET'],
authLevel: 'anonymous',
handler: async (request, context) => {
const response = await openai.createCompletion({
model: 'text-davinci-003',
prompt:
'...',
max_tokens: 100,
temperature: 0.8,
})
context.log(`Http function processed request for url "${request.url}"`)
const responseText = response.data.choices[0].text
return {
body: responseText,
}
},
})

我已经确认过URL和端口都是正确的，浏览器访问完全正常，但API路由调用就失败，实在搞不懂哪里出问题了，有没有朋友遇到过类似的情况，或者能给我一些排查方向？

备注：内容来源于stack exchange，提问作者Pickez