Node.js集成支付宝接口注意事项

目录

• 签名
• 发送请求表单
• 验签
• 总结

签名

let crypto = require('crypto');

const iconv = require('iconv-lite');

// RSA2签名

function getSign( beforeSignStr ) {

    let sign = crypto.createSign('RSA-SHA256');

    return sign.update( iconv.encode( beforeSignStr, "gbk" ) ).sign( 私钥字符串, "base64" );

}

发送请求表单

//请求表单

function getRequestForm( requestBody ) {

    let form = "<form id='alipaysubmit' name='alipaysubmit' action='" + 请求支付宝url + "' accept-charset='gbk' method='POST'>";

	for( let key in requestBody ) {

		form += "<input type='hidden' name='" + key + "' value='" + requestBody[key] + "'/>";

	}

        form += "<input type='submit' value='ok' style='display:none;'></form><script>document.forms['alipaysubmit'].submit();</script>";

	return form;

}

验签

let crypto = require('crypto');

const urlencode = require('urlencode');

const iconv = require('iconv-lite');

// 得到验签结果

function getVerifySign( beforeVerifyStr ) {

    let verify = crypto.createVerify('RSA-SHA256');

    return verify.update( iconv.encode( urlencode.decode( beforeVerifyStr, "gbk" ), "gbk" ) ).verify( 公钥字符串, 支付宝响应签名, "base64" );

}

总结