[英]How to use curl with exec nodejs
我嘗試在節點js中執行以下操作
var command = " -d '{'title': 'Test' }' -H 'Content-Type: application/json' http://125.196.19.210:3030/widgets/test";
exec(['curl', command], function(err, out, code) {
if (err instanceof Error)
throw err;
process.stderr.write(err);
process.stdout.write(out);
process.exit(code);
});
它在我在命令行中執行以下操作時有效:
curl -d '{ "title": "Test" }' -H "Content-Type: application/json" http://125.196.19.210:3030/widgets/test
但是當我在nodejs中這樣做時,它會告訴我
curl: no URL specified!
curl: try 'curl --help' or 'curl --manual' for more information
child process exited with code 2
exec命令的options
參數不包含你的argv。
您可以直接使用child_process.exec
函數放置參數:
var exec = require('child_process').exec;
var args = " -d '{'title': 'Test' }' -H 'Content-Type: application/json' http://125.196.19.210:3030/widgets/test";
exec('curl ' + args, function (error, stdout, stderr) {
console.log('stdout: ' + stdout);
console.log('stderr: ' + stderr);
if (error !== null) {
console.log('exec error: ' + error);
}
});
如果要使用argv參數,
你可以使用child_process.execFile
函數:
var execFile = require('child_process').execFile;
var args = ["-d '{'title': 'Test' }'", "-H 'Content-Type: application/json'", "http://125.196.19.210:3030/widgets/test"];
execFile('curl.exe', args, {},
function (error, stdout, stderr) {
console.log('stdout: ' + stdout);
console.log('stderr: ' + stderr);
if (error !== null) {
console.log('exec error: ' + error);
}
});
您可以這樣做...您可以輕松地將execSync
與exec
交換,如上例所示。
#!/usr/bin/env node
var child_process = require('child_process');
function runCmd(cmd)
{
var resp = child_process.execSync(cmd);
var result = resp.toString('UTF8');
return result;
}
var cmd = "curl -s -d '{'title': 'Test' }' -H 'Content-Type: application/json' http://125.196.19.210:3030/widgets/test";
var result = runCmd(cmd);
console.log(result);
FWIW你可以在節點中本地做同樣的事情:
var http = require('http'),
url = require('url');
var opts = url.parse('http://125.196.19.210:3030/widgets/test'),
data = { title: 'Test' };
opts.headers = {};
opts.headers['Content-Type'] = 'application/json';
http.request(opts, function(res) {
// do whatever you want with the response
res.pipe(process.stdout);
}).end(JSON.stringify(data));
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