demo报错

[DragonGuo666]

node:internal/crypto/sig:222
signature = getArrayBufferOrView(signature, 'signature', sigEncoding);
^

TypeError [ERR_INVALID_ARG_TYPE]: The "signature" argument must be of type string or an instance of ArrayBuffer, Buffer, TypedArray, or DataView. Received undefined
at Verify.verify (node:internal/crypto/sig:222:15)
at verifySignatureV3 (file:///root/node_modules/alipay-sdk/dist/esm/util.js:123:10)
at #curl (file:///root/node_modules/alipay-sdk/dist/esm/alipay.js:401:18)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
at async AlipaySdk.curl (file:///root/node_modules/alipay-sdk/dist/esm/alipay.js:141:16)
at async main (file:///root/alipaysdk_node/quanming.mjs:19:20) {
code: 'ERR_INVALID_ARG_TYPE'
}

Node.js v20.17.0

[fengmk2]

请添加一下 debug 环境变量重新运行一下，看看日志，里面打印了 alipay-signature headers 的值，目前怀疑这个值是空的。

NODE_DEBUG=alipay-sdk*

[fengmk2]

还有你的 endpoint 不应该手动设置，走 v3 接口就是默认值 endpoint: 'https://openapi.alipay.com'， 而不是 endpoint: 'https://openapi.alipay.com/gateway.do'