javascript NodeJS Http Post JSON 数据
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NodeJS Http Post JSON Data
提问by CodeGuru
How do I properly send JSON data over Http Post on NodeJS? I have checked that the data I'm sending is definitely JSON but every time I try sending over http post, it would receive an error. I cant exactly see the error as it's returning from terminal and even if I output, it's too messy, not properly formatted
如何在 NodeJS 上通过 Http Post 正确发送 JSON 数据？我已经检查过我发送的数据绝对是 JSON，但是每次我尝试通过 http 发送时，它都会收到错误消息。我无法准确地看到错误，因为它是从终端返回的，即使我输出，它也太乱了，格式不正确
var options = {
hostname: 'www.postcatcher.in',
port: 80,
path: '/catchers/5531b7faacde130300002495',
method: 'POST',
headers: {
'Content-Type': 'application/json',
}
};
var req = http.request(options, function(res) {
console.log('Status: ' + res.statusCode);
console.log('Headers: ' + JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function (body) {
console.log('Body: ' + body);
fs.writeFile("/var/www/node/test.txt", body, function(err) {
if(err) {
return console.log(err);
}
console.log("The file was saved!");
});
});
});
req.on('error', function(e) {
console.log('problem with request: ' + e.message);
});
// write data to request body
req.write('{"string": result}'); ///RESULT HERE IS A JSON
req.end();
Also tried this
也试过这个
// request.post(
// '',
// { form: { key: result } },
// function (error, response, body) {
// if (!error && response.statusCode == 200) {
// console.log(body);
// }
// }
// );
// console.log(result);
回答by lecstor
resultis not being interpolated.
result没有被插值。
this seems to work correctly..
这似乎工作正常..
http = require('http');
fs = require('fs');
var options = {
hostname: 'www.postcatcher.in',
port: 80,
path: '/catchers/5531b7faacde130300002495',
method: 'POST',
headers: {
'Content-Type': 'application/json',
}
};
var req = http.request(options, function(res) {
console.log('Status: ' + res.statusCode);
console.log('Headers: ' + JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function (body) {
console.log('Body: ' + body);
fs.writeFile("test.txt", body, function(err) {
if(err) {
return console.log(err);
}
console.log("The file was saved!");
});
});
});
req.on('error', function(e) {
console.log('problem with request: ' + e.message);
});
// write data to request body
// req.write('{"string": result}'); ///RESULT HERE IS A JSON
result = '{ "hello": "json" }';
req.write('{"string": '+result+'}');
req.end();
result:
结果：
$ node 29712051.js
Status: 201
Headers: {"server":"Cowboy","date":"Sat, 18 Apr 2015 04:23:52 GMT","connection":"keep-alive","x-powered-by":"Express","content-type":"text/plain","content-length":"7","set-cookie":["connect.sid=0eGSTYI2RWf5ZTkpDZ0IumOD.OrcIJ53vFcOiQSdEbWz0ETQ9n50JBnXyZRjrSyFIdwE; path=/; expires=Sat, 18 Apr 2015 08:23:53 GMT; httpOnly"],"x-response-time":"6ms","via":"1.1 vegur"}
Body: Created
The file was saved!
$ cat test.txt
Created
回答by just like before
actually, u can use JSON.stringify(result) to instead '{"string": '+result+'}':
实际上，您可以使用 JSON.stringify(result) 代替 '{"string": '+result+'}'：
http = require('http');
fs = require('fs');
var options = {
hostname: 'www.postcatcher.in',
port: 80,
path: '/catchers/5531b7faacde130300002495',
method: 'POST',
headers: {
'Content-Type': 'application/json',
}
};
var req = http.request(options, function(res) {
console.log('Status: ' + res.statusCode);
console.log('Headers: ' + JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function (body) {
console.log('Body: ' + body);
fs.writeFile("test.txt", body, function(err) {
if(err) {
return console.log(err);
}
console.log("The file was saved!");
});
});
});
req.on('error', function(e) {
console.log('problem with request: ' + e.message);
});
// write data to request body
// req.write('{"string": result}'); ///RESULT HERE IS A JSON
//
result = JSON.stringify({ hello: "json" });
req.write('{"string": '+result+'}');
//
req.end();
