0
我一直在試圖從角度服務傳遞多個參數給節點api。下面這裏是角服務代碼將參數傳遞給節點api
getEnrollmentId(userName,org) {
console.log("username",userName);
let headers = new Headers({ 'Content-Type': 'x-www-form-urlencoded' });
let options = new RequestOptions({ headers: headers });
let body1 = new URLSearchParams();
body1.set('username', userName);
body1.set('orgName', org);
let body = body1.toString();
console.log('server logs',body);
return this.http.post('http://localhost:4000/users', body, options)
.map((res: Response) => res.json())
.catch((error:any) => Observable.throw(error.json().error || 'Server error shit '));}
我的節點API代碼是
app.post('/users', function(req, res) {
var username = req.body.username;
var orgName = req.body.orgName;
logger.debug('Body request',req);
logger.debug('End point : /users');
logger.debug('User name : ' + username);
logger.debug('Org name : ' + orgName);
if (!username) {
res.json(getErrorMessage('\'username\''));
return;
}
if (!orgName) {
res.json(getErrorMessage('\'orgName\''));
return;
}
var token = jwt.sign({
exp: Math.floor(Date.now()/1000) + parseInt(config.jwt_expiretime),
username: username,
orgName: orgName
}, app.get('secret'));
helper.getRegisteredUsers(username, orgName, true).then(function(response) {
if (response && typeof response !== 'string') {
response.token = token;
res.json(response);
} else {
res.json({
success: false,
message: response
});
}
});
}）;
儘管我可以在body變量中看到我的參數值，但是當在我的節點控制檯上時，兩個參數均接收undefined值。 下面是節點控制檯日誌。 正如你可以看到我的請求對象，身體參數返回空數組body={}這可能是分配給undefined的原因參數值。任何解決方案來解決這個
[2017-08-07 22:17:06.186] [DEBUG] SampleWebApp - Body request IncomingMessage {
_readableState:
ReadableState {
objectMode: false,
highWaterMark: 16384,
buffer: BufferList { head: null, tail: null, length: 0 },
length: 0,
pipes: null,
pipesCount: 0,
flowing: null,
ended: false,
endEmitted: false,
reading: false,
sync: true,
needReadable: false,
emittedReadable: false,
readableListening: false,
resumeScheduled: false,
defaultEncoding: 'utf8',
ranOut: false,
awaitDrain: 0,
readingMore: true,
decoder: null,
encoding: null },
readable: true,
domain: null,
_events: {},
_eventsCount: 0,
_maxListeners: undefined,
socket:
Socket {
connecting: false,
_hadError: false,
_handle:
TCP {
bytesRead: 830,
_externalStream: {},
fd: 13,
reading: true,
owner: [Circular],
onread: [Function: onread],
onconnection: null,
writeQueueSize: 0,
_consumed: true },
_parent: null,
_host: null,
_readableState:
ReadableState {
objectMode: false,
highWaterMark: 16384,
buffer: [Object],
length: 0,
pipes: null,
pipesCount: 0,
flowing: true,
ended: false,
endEmitted: false,
reading: true,
sync: false,
needReadable: true,
emittedReadable: false,
readableListening: false,
resumeScheduled: false,
defaultEncoding: 'utf8',
ranOut: false,
awaitDrain: 0,
readingMore: false,
decoder: null,
encoding: null },
readable: true,
domain: null,
_events:
{ end: [Object],
finish: [Function: onSocketFinish],
_socketEnd: [Function: onSocketEnd],
drain: [Object],
timeout: [Function],
error: [Function: socketOnError],
close: [Object],
data: [Function: socketOnData],
resume: [Function: onSocketResume],
pause: [Function: onSocketPause] },
_eventsCount: 10,
_maxListeners: undefined,
_writableState:
WritableState {
objectMode: false,
highWaterMark: 16384,
needDrain: false,
ending: false,
ended: false,
finished: false,
decodeStrings: false,
defaultEncoding: 'utf8',
length: 0,
writing: false,
corked: 0,
sync: false,
bufferProcessing: false,
onwrite: [Function],
writecb: null,
writelen: 0,
bufferedRequest: null,
lastBufferedRequest: null,
pendingcb: 0,
prefinished: false,
errorEmitted: false,
bufferedRequestCount: 0,
corkedRequestsFree: [Object] },
writable: true,
allowHalfOpen: true,
destroyed: false,
_bytesDispatched: 287,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server:
Server {
domain: null,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_connections: 1,
_handle: [Object],
_usingSlaves: false,
_slaves: [],
_unref: false,
allowHalfOpen: true,
pauseOnConnect: false,
httpAllowHalfOpen: false,
timeout: 240000,
_pendingResponseData: 0,
_connectionKey: '6::::4000' },
_server:
Server {
domain: null,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_connections: 1,
_handle: [Object],
_usingSlaves: false,
_slaves: [],
_unref: false,
allowHalfOpen: true,
pauseOnConnect: false,
httpAllowHalfOpen: false,
timeout: 240000,
_pendingResponseData: 0,
_connectionKey: '6::::4000' },
_idleTimeout: 240000,
_idleNext:
TimersList {
_idleNext: [Circular],
_idlePrev: [Circular],
_timer: [Object],
_unrefed: true,
msecs: 240000,
nextTick: false },
_idlePrev:
TimersList {
_idleNext: [Circular],
_idlePrev: [Circular],
_timer: [Object],
_unrefed: true,
msecs: 240000,
nextTick: false },
_idleStart: 46633,
parser:
HTTPParser {
'0': [Function: parserOnHeaders],
'1': [Function: parserOnHeadersComplete],
'2': [Function: parserOnBody],
'3': [Function: parserOnMessageComplete],
'4': [Function: onParserExecute],
_headers: [],
_url: '',
_consumed: true,
socket: [Circular],
incoming: [Circular],
outgoing: null,
maxHeaderPairs: 2000,
onIncoming: [Function: parserOnIncoming] },
on: [Function: socketOnWrap],
_paused: false,
read: [Function],
_consuming: true,
_httpMessage:
ServerResponse {
domain: null,
_events: [Object],
_eventsCount: 1,
_maxListeners: undefined,
output: [],
outputEncodings: [],
outputCallbacks: [],
outputSize: 0,
writable: true,
_last: false,
upgrading: false,
chunkedEncoding: false,
shouldKeepAlive: true,
useChunkedEncodingByDefault: true,
sendDate: true,
_removedHeader: {},
_contentLength: null,
_hasBody: true,
_trailer: '',
finished: false,
_headerSent: false,
socket: [Circular],
connection: [Circular],
_header: null,
_headers: [Object],
_headerNames: [Object],
_onPendingData: [Function: updateOutgoingData],
req: [Circular],
locals: {} } },
connection:
Socket {
connecting: false,
_hadError: false,
_handle:
TCP {
bytesRead: 830,
_externalStream: {},
fd: 13,
reading: true,
owner: [Circular],
onread: [Function: onread],
onconnection: null,
writeQueueSize: 0,
_consumed: true },
_parent: null,
_host: null,
_readableState:
ReadableState {
objectMode: false,
highWaterMark: 16384,
buffer: [Object],
length: 0,
pipes: null,
pipesCount: 0,
flowing: true,
ended: false,
endEmitted: false,
reading: true,
sync: false,
needReadable: true,
emittedReadable: false,
readableListening: false,
resumeScheduled: false,
defaultEncoding: 'utf8',
ranOut: false,
awaitDrain: 0,
readingMore: false,
decoder: null,
encoding: null },
readable: true,
domain: null,
_events:
{ end: [Object],
finish: [Function: onSocketFinish],
_socketEnd: [Function: onSocketEnd],
drain: [Object],
timeout: [Function],
error: [Function: socketOnError],
close: [Object],
data: [Function: socketOnData],
resume: [Function: onSocketResume],
pause: [Function: onSocketPause] },
_eventsCount: 10,
_maxListeners: undefined,
_writableState:
WritableState {
objectMode: false,
highWaterMark: 16384,
needDrain: false,
ending: false,
ended: false,
finished: false,
decodeStrings: false,
defaultEncoding: 'utf8',
length: 0,
writing: false,
corked: 0,
sync: false,
bufferProcessing: false,
onwrite: [Function],
writecb: null,
writelen: 0,
bufferedRequest: null,
lastBufferedRequest: null,
pendingcb: 0,
prefinished: false,
errorEmitted: false,
bufferedRequestCount: 0,
corkedRequestsFree: [Object] },
writable: true,
allowHalfOpen: true,
destroyed: false,
_bytesDispatched: 287,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server:
Server {
domain: null,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_connections: 1,
_handle: [Object],
_usingSlaves: false,
_slaves: [],
_unref: false,
allowHalfOpen: true,
pauseOnConnect: false,
httpAllowHalfOpen: false,
timeout: 240000,
_pendingResponseData: 0,
_connectionKey: '6::::4000' },
_server:
Server {
domain: null,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_connections: 1,
_handle: [Object],
_usingSlaves: false,
_slaves: [],
_unref: false,
allowHalfOpen: true,
pauseOnConnect: false,
httpAllowHalfOpen: false,
timeout: 240000,
_pendingResponseData: 0,
_connectionKey: '6::::4000' },
_idleTimeout: 240000,
_idleNext:
TimersList {
_idleNext: [Circular],
_idlePrev: [Circular],
_timer: [Object],
_unrefed: true,
msecs: 240000,
nextTick: false },
_idlePrev:
TimersList {
_idleNext: [Circular],
_idlePrev: [Circular],
_timer: [Object],
_unrefed: true,
msecs: 240000,
nextTick: false },
_idleStart: 46633,
parser:
HTTPParser {
'0': [Function: parserOnHeaders],
'1': [Function: parserOnHeadersComplete],
'2': [Function: parserOnBody],
'3': [Function: parserOnMessageComplete],
'4': [Function: onParserExecute],
_headers: [],
_url: '',
_consumed: true,
socket: [Circular],
incoming: [Circular],
outgoing: null,
maxHeaderPairs: 2000,
onIncoming: [Function: parserOnIncoming] },
on: [Function: socketOnWrap],
_paused: false,
read: [Function],
_consuming: true,
_httpMessage:
ServerResponse {
domain: null,
_events: [Object],
_eventsCount: 1,
_maxListeners: undefined,
output: [],
outputEncodings: [],
outputCallbacks: [],
outputSize: 0,
writable: true,
_last: false,
upgrading: false,
chunkedEncoding: false,
shouldKeepAlive: true,
useChunkedEncodingByDefault: true,
sendDate: true,
_removedHeader: {},
_contentLength: null,
_hasBody: true,
_trailer: '',
finished: false,
_headerSent: false,
socket: [Circular],
connection: [Circular],
_header: null,
_headers: [Object],
_headerNames: [Object],
_onPendingData: [Function: updateOutgoingData],
req: [Circular],
locals: {} } },
httpVersionMajor: 1,
httpVersionMinor: 1,
httpVersion: '1.1',
complete: false,
headers:
{ host: 'localhost:4000',
'user-agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0',
accept: 'application/json, text/plain, */*',
'accept-language': 'en-US,en;q=0.5',
'accept-encoding': 'gzip, deflate',
'content-type': 'x-www-form-urlencoded',
referer: 'http://localhost:4200/',
'content-length': '26',
origin: 'http://localhost:4200',
connection: 'keep-alive' },
rawHeaders:
[ 'Host',
'localhost:4000',
'User-Agent',
'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0',
'Accept',
'application/json, text/plain, */*',
'Accept-Language',
'en-US,en;q=0.5',
'Accept-Encoding',
'gzip, deflate',
'Content-Type',
'x-www-form-urlencoded',
'Referer',
'http://localhost:4200/',
'Content-Length',
'26',
'Origin',
'http://localhost:4200',
'Connection',
'keep-alive' ],
trailers: {},
rawTrailers: [],
upgrade: false,
url: '/users',
method: 'POST',
statusCode: null,
statusMessage: null,
client:
Socket {
connecting: false,
_hadError: false,
_handle:
TCP {
bytesRead: 830,
_externalStream: {},
fd: 13,
reading: true,
owner: [Circular],
onread: [Function: onread],
onconnection: null,
writeQueueSize: 0,
_consumed: true },
_parent: null,
_host: null,
_readableState:
ReadableState {
objectMode: false,
highWaterMark: 16384,
buffer: [Object],
length: 0,
pipes: null,
pipesCount: 0,
flowing: true,
ended: false,
endEmitted: false,
reading: true,
sync: false,
needReadable: true,
emittedReadable: false,
readableListening: false,
resumeScheduled: false,
defaultEncoding: 'utf8',
ranOut: false,
awaitDrain: 0,
readingMore: false,
decoder: null,
encoding: null },
readable: true,
domain: null,
_events:
{ end: [Object],
finish: [Function: onSocketFinish],
_socketEnd: [Function: onSocketEnd],
drain: [Object],
timeout: [Function],
error: [Function: socketOnError],
close: [Object],
data: [Function: socketOnData],
resume: [Function: onSocketResume],
pause: [Function: onSocketPause] },
_eventsCount: 10,
_maxListeners: undefined,
_writableState:
WritableState {
objectMode: false,
highWaterMark: 16384,
needDrain: false,
ending: false,
ended: false,
finished: false,
decodeStrings: false,
defaultEncoding: 'utf8',
length: 0,
writing: false,
corked: 0,
sync: false,
bufferProcessing: false,
onwrite: [Function],
writecb: null,
writelen: 0,
bufferedRequest: null,
lastBufferedRequest: null,
pendingcb: 0,
prefinished: false,
errorEmitted: false,
bufferedRequestCount: 0,
corkedRequestsFree: [Object] },
writable: true,
allowHalfOpen: true,
destroyed: false,
_bytesDispatched: 287,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server:
Server {
domain: null,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_connections: 1,
_handle: [Object],
_usingSlaves: false,
_slaves: [],
_unref: false,
allowHalfOpen: true,
pauseOnConnect: false,
httpAllowHalfOpen: false,
timeout: 240000,
_pendingResponseData: 0,
_connectionKey: '6::::4000' },
_server:
Server {
domain: null,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_connections: 1,
_handle: [Object],
_usingSlaves: false,
_slaves: [],
_unref: false,
allowHalfOpen: true,
pauseOnConnect: false,
httpAllowHalfOpen: false,
timeout: 240000,
_pendingResponseData: 0,
_connectionKey: '6::::4000' },
_idleTimeout: 240000,
_idleNext:
TimersList {
_idleNext: [Circular],
_idlePrev: [Circular],
_timer: [Object],
_unrefed: true,
msecs: 240000,
nextTick: false },
_idlePrev:
TimersList {
_idleNext: [Circular],
_idlePrev: [Circular],
_timer: [Object],
_unrefed: true,
msecs: 240000,
nextTick: false },
_idleStart: 46633,
parser:
HTTPParser {
'0': [Function: parserOnHeaders],
'1': [Function: parserOnHeadersComplete],
'2': [Function: parserOnBody],
'3': [Function: parserOnMessageComplete],
'4': [Function: onParserExecute],
_headers: [],
_url: '',
_consumed: true,
socket: [Circular],
incoming: [Circular],
outgoing: null,
maxHeaderPairs: 2000,
onIncoming: [Function: parserOnIncoming] },
on: [Function: socketOnWrap],
_paused: false,
read: [Function],
_consuming: true,
_httpMessage:
ServerResponse {
domain: null,
_events: [Object],
_eventsCount: 1,
_maxListeners: undefined,
output: [],
outputEncodings: [],
outputCallbacks: [],
outputSize: 0,
writable: true,
_last: false,
upgrading: false,
chunkedEncoding: false,
shouldKeepAlive: true,
useChunkedEncodingByDefault: true,
sendDate: true,
_removedHeader: {},
_contentLength: null,
_hasBody: true,
_trailer: '',
finished: false,
_headerSent: false,
socket: [Circular],
connection: [Circular],
_header: null,
_headers: [Object],
_headerNames: [Object],
_onPendingData: [Function: updateOutgoingData],
req: [Circular],
locals: {} } },
_consuming: false,
_dumped: false,
next: [Function: next],
baseUrl: '',
originalUrl: '/users',
_parsedUrl:
Url {
protocol: null,
slashes: null,
auth: null,
host: null,
port: null,
hostname: null,
hash: null,
search: null,
query: null,
pathname: '/users',
path: '/users',
href: '/users',
_raw: '/users' },
params: {},
query: {},
res:
ServerResponse {
domain: null,
_events: { finish: [Function: resOnFinish] },
_eventsCount: 1,
_maxListeners: undefined,
output: [],
outputEncodings: [],
outputCallbacks: [],
outputSize: 0,
writable: true,
_last: false,
upgrading: false,
chunkedEncoding: false,
shouldKeepAlive: true,
useChunkedEncodingByDefault: true,
sendDate: true,
_removedHeader: {},
_contentLength: null,
_hasBody: true,
_trailer: '',
finished: false,
_headerSent: false,
socket:
Socket {
connecting: false,
_hadError: false,
_handle: [Object],
_parent: null,
_host: null,
_readableState: [Object],
readable: true,
domain: null,
_events: [Object],
_eventsCount: 10,
_maxListeners: undefined,
_writableState: [Object],
writable: true,
allowHalfOpen: true,
destroyed: false,
_bytesDispatched: 287,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: [Object],
_server: [Object],
_idleTimeout: 240000,
_idleNext: [Object],
_idlePrev: [Object],
_idleStart: 46633,
parser: [Object],
on: [Function: socketOnWrap],
_paused: false,
read: [Function],
_consuming: true,
_httpMessage: [Circular] },
connection:
Socket {
connecting: false,
_hadError: false,
_handle: [Object],
_parent: null,
_host: null,
_readableState: [Object],
readable: true,
domain: null,
_events: [Object],
_eventsCount: 10,
_maxListeners: undefined,
_writableState: [Object],
writable: true,
allowHalfOpen: true,
destroyed: false,
_bytesDispatched: 287,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: [Object],
_server: [Object],
_idleTimeout: 240000,
_idleNext: [Object],
_idlePrev: [Object],
_idleStart: 46633,
parser: [Object],
on: [Function: socketOnWrap],
_paused: false,
read: [Function],
_consuming: true,
_httpMessage: [Circular] },
_header: null,
_headers:
{ 'x-powered-by': 'Express',
'access-control-allow-origin': '*' },
_headerNames:
{ 'x-powered-by': 'X-Powered-By',
'access-control-allow-origin': 'Access-Control-Allow-Origin' },
_onPendingData: [Function: updateOutgoingData],
req: [Circular],
locals: {} },
body: {},
token: undefined,
route: Route { path: '/users', stack: [ [Object] ], methods: { post: true } } }
[2017-08-07 22:17:06.430] [DEBUG] SampleWebApp - End point : /users
[2017-08-07 22:17:06.430] [DEBUG] SampleWebApp - User name : undefined
[2017-08-07 22:17:06.430] [DEBUG] SampleWebApp - Org name : undefined
不要在body1對象上執行'toString（）'。傳遞一個常規的JSON對象是最容易的，所以'let body = {username：'myname'，orgName：'MyOrg'}' – Ero