如何使用节点或Express返回JSON

Question

我的http请求正在返回对象。如何压缩请求，使其以正确的json形式返回数据？

function httpGet() {
    return new Promise(((resolve, reject) => {
        var options = {
            host: 'api.airtable.com',
            port: 443,
            path: '/v0/app000000000/Database?filterByFormula=(DrugName=%27azatadine%27)',
            method: 'GET',
            headers: {
                'Authorization': 'Bearer key12345677890'
            }
        };
        const request = https.request(options, (response) => {
            response.setEncoding('utf8');
            let returnData = '';

            response.on('data', (chunk) => {
              returnData += chunk;
            });

            response.on('end', () => {
              resolve(JSON.parse(returnData));
            });

            response.on('error', (error) => {
              reject(error);
            });
          });
          request.end();   
    }));
}

我想返回记录中的指示，如下面的get响应：

    "records": [
        {
            "id": "recBgV3VDiJeMkcwo",
            "fields": {
                "DrugName": "azatadine",
                "nameapi": [
                    "recBgV3VDiJeMkcwo"
                ],
                "Indication": "For the relief of the symptoms of upper respiratory mucosal congestion in perennial and allergic rhinitis, and for the relief of nasal congestion and eustachian t.b. congestion.",
                "lookup": [
                    "azatadine"
                ],
                "drugID": "recBgV3VDiJeMkcwo"
            },
            "createdTime": "2018-11-09T19:38:24.000Z"
        }
    ]
}

Answer 1

从JSON.parse回调中取出response.on('end')，您应该会很好。returnData的原因是JSON格式的，解析它将返回JS对象表示，但您需要的是JSON字符串。