postman/post显示我的请求不包含表单数据。需要帮助构建请求。

huangapple
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英文:

postman/post shows my request does not contain form-data. Need help constructing the request

问题

我的Node.js模块构建了一个带有表单数据的POST请求。

当我在postman-echo.com/post上测试它时，postman-echo返回了我的请求，但响应中只包含我设置的头部信息，表单数据并未出现。

模块设置如下：
import { request } from 'https';
import FormData from 'form-data';

创建一个新的FormData对象并附加一些字段。

创建一个包含头部和body(form-data)的选项对象。

使用选项对象调用请求。

记录postman-echo/post的响应。

响应表明头部已被识别，但表单数据未被包括。

更新后的代码（根据Hashila建议于2023年3月31日13:00 EST）：

  1. import { request } from 'https';
  2. import FormData from 'form-data';
  4. const formData = new FormData();
  5. formData.append('type', '1');
  6. formData.append('subject', 'Example subject');
  7. formData.append('description', 'Example description');
  8. formData.append('location', 'Example location');
  9. console.log("formData:", formData);
  10. var boundary = formData._boundary;
  11. console.log("boundary:", boundary);
  13. const options = {
  14.   hostname: 'postman-echo.com',
  15.   port: 443,
  16.   path: '/post',
  17.   method: 'POST',
  18.   headers: {
  19.     'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36',
  20.     'Cookie': 'myCookie=myCookiee',
  21.     'Content-Type': `multipart/form-data; boundary=${boundary}`
  22.   },
  23.   body: formData
  24. };
  26. const req = request(options, (res) => {
  27.   console.log(`Status code: ${res.statusCode}`);
  29.   res.on('data', (chunk) => {
  30.     console.log(`Response body: ${chunk}`);
  31.   });
  32. });
  34. req.on('error', (error) => {
  35.   console.error(error);
  36. });
  38. req.end();

这是控制台日志：

  1. formData: FormData {
  2.   _overheadLength: 426,
  3.   _valueLength: 51,
  4.   _valuesToMeasure: [],
  5.   writable: false,
  6.   readable: true,
  7.   dataSize: 0,
  8.   maxDataSize: 2097152,
  9.   pauseStreams: true,
  10.   _released: false,
  11.   _streams: [
  12.     '----------------------------511827528311442099887851\r\n' +
  13.       'Content-Disposition: form-data; name="type"\r\n' +
  14.       '\r\n',
  15.     '1',
  16.     [Function: bound ],
  17.     '----------------------------511827528311442099887851\r\n' +
  18.       'Content-Disposition: form-data; name="subject"\r\n' +
  19.       '\r\n',
  20.     'Example subject',
  21.     [Function: bound ],
  22.     '----------------------------511827528311442099887851\r\n' +
  23.       'Content-Disposition: form-data; name="description"\r\n' +
  24.       '\r\n',
  25.     'Example description',
  26.     [Function: bound ],
  27.     '----------------------------511827528311442099887851\r\n' +
  28.       'Content-Disposition: form-data; name="location"\r\n' +
  29.       '\r\n',
  30.     'Example location',
  31.     [Function: bound ]
  32.   ],
  33.   _currentStream: null,
  34.   _insideLoop: false,
  35.   _pendingNext: false,
  36.   _boundary: '--------------------------511827528311442099887851'
  37. }
  38. boundary: --------------------------511827528311442099887851
  39. Status code: 200
  40. Response body: {
  41.   "args": {},
  42.   "data": {},
  43.   "files": {},
  44.   "form": {},
  45.   "headers": {
  46.     "x-forwarded-proto": "https",
  47.     "x-forwarded-port": "443",
  48.     "host": "postman-echo.com",
  49.     "x-amzn-trace-id": "Root=1-64270c8e-1e3b458b7da07d124d6829ce",
  50.     "content-length": "0",
  51.     "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36",
  52.     "cookie": "myCookie=myCookiee",
  53.     "content-type": "multipart/form-data; boundary=--------------------------511827528311442099887851"
  54.   },
  55.   "json": null,
  56.   "url": "https://postman-echo.com/post"
  57. }
英文:

My node.js module constructs a post request with form-data.

When I test this on postman-echo.com/post postman-echo returns my request but only the headers that I had setup are in the postman-echo response. The form-data is nowhere to be seen.

Set up the module with:
import { request } from 'https';
import FormData from 'form-data';

Create a new FormData object and append a few fields.

Create an options object that contains headers and body: form-data.

Invoke request with option object as parameter.

Log response from postman-echo/post.

Response indicates the headers were picked up, but not the form-data.

code (updated per Hashila suggestion 2023/03/31 13:00 est):

  1. import { request } from 'https';
  2. import FormData from 'form-data';
  4. const formData = new FormData();
  5. formData.append('type', '1');
  6. formData.append('subject', 'Example subject');
  7. formData.append('description', 'Example description');
  8. formData.append('location', 'Example location');
  9. console.log("🚀 ~ file: postman-post.mjs:9 ~ formData:", formData)
  10. var boundary = formData._boundary;
  11. console.log("🚀 ~ file: postman-post.mjs:11 ~ boundary:", boundary);
  13. const options = {
  14.   hostname: 'postman-echo.com',
  15.   port: 443,
  16.   path: '/post',
  17.   method: 'POST',
  18.   headers: {
  19.     'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36',
  20.     'Cookie': 'myCookie=myCookiee',
  21.     'Content-Type': `multipart/form-data; boundary=${boundary}`
  22.   },
  23.   body: formData
  24. };
  26. const req = request(options, (res) => {
  27.   console.log(`Status code: ${res.statusCode}`);
  29.   res.on('data', (chunk) => {
  30.     console.log(`Response body: ${chunk}`);
  31.   });
  32. });
  34. req.on('error', (error) => {
  35.   console.error(error);
  36. });
  38. req.end();

This is the console log:

  1. 🚀 ~ file: postman-post.mjs:9 ~ formData: FormData {
  2.   _overheadLength: 426,
  3.   _valueLength: 51,
  4.   _valuesToMeasure: [],
  5.   writable: false,
  6.   readable: true,
  7.   dataSize: 0,
  8.   maxDataSize: 2097152,
  9.   pauseStreams: true,
  10.   _released: false,
  11.   _streams: [
  12.     '----------------------------511827528311442099887851\r\n' +
  13.       'Content-Disposition: form-data; name="type"\r\n' +
  14.       '\r\n',
  15.     '1',
  16.     [Function: bound ],
  17.     '----------------------------511827528311442099887851\r\n' +
  18.       'Content-Disposition: form-data; name="subject"\r\n' +
  19.       '\r\n',
  20.     'Example subject',
  21.     [Function: bound ],
  22.     '----------------------------511827528311442099887851\r\n' +
  23.       'Content-Disposition: form-data; name="description"\r\n' +
  24.       '\r\n',
  25.     'Example description',
  26.     [Function: bound ],
  27.     '----------------------------511827528311442099887851\r\n' +
  28.       'Content-Disposition: form-data; name="location"\r\n' +
  29.       '\r\n',
  30.     'Example location',
  31.     [Function: bound ]
  32.   ],
  33.   _currentStream: null,
  34.   _insideLoop: false,
  35.   _pendingNext: false,
  36.   _boundary: '--------------------------511827528311442099887851'
  37. }
  38. 🚀 ~ file: postman-post.mjs:11 ~ boundary: --------------------------511827528311442099887851
  39. Status code: 200
  40. Response body: {
  41.   "args": {},
  42.   "data": {},
  43.   "files": {},
  44.   "form": {},
  45.   "headers": {
  46.     "x-forwarded-proto": "https",
  47.     "x-forwarded-port": "443",
  48.     "host": "postman-echo.com",
  49.     "x-amzn-trace-id": "Root=1-64270c8e-1e3b458b7da07d124d6829ce",
  50.     "content-length": "0",
  51.     "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36",
  52.     "cookie": "myCookie=myCookiee",
  53.     "content-type": "multipart/form-data; boundary=--------------------------511827528311442099887851"
  54.   },
  55.   "json": null,
  56.   "url": "https://postman-echo.com/post"
  58. Response body: }

答案1

得分: 1

没有request调用的body选项。您需要使用req.write。

  1. req.write(formData.getBuffer());

也不需要手动设置Content-Type标头。使用formData.getHeaders()。

  1. headers: {
  2.     'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36',
  3.     'Cookie': 'myCookie=myCookiee',
  4.     ...formData.getHeaders(),
  5. },
英文:

There is no body option for the request call. You need to use req.write.

  1. req.write(formData.getBuffer());

There is also no need to make the Content-Type header manually. Use formData.getHeaders().

  1. headers: {
  2.     'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36',
  3.     'Cookie': 'myCookie=myCookiee',
  4.     ...formData.getHeaders(),
  5. },

huangapple
  • 本文由 发表于 2023年3月31日 19:03:47
  • 转载请务必保留本文链接：https://go.coder-hub.com/75897800.html
  • node.js
  • postman
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