Serve express middleware once.
- creates http server on a free port
- uses passed express middleware
- serve exectly 1 request
- closes http server
- pullout body of request stream
- resolves request promise with a response
Good for middleware logic testing.
npm i serve-once
-
method -
http-method (get,put,postetc) -
path -
http-path - options - middleware options
-
body -
http-requestbody -
headers -
http-requestheaders -
type - type of return value, can be:
- string
- json
- stream
- buffer
const middleware = (options = 'hello') => (req, res) => {
res.end(JSON.stringify(options));
};
const {request} = require('serve-once')(middleware);
await request('get', '/');
// returns
'hello';
await request.get('/', {
options: 'any',
});
// returns
'any';You can send body:
const pullout = require('pullout');
const putMiddleware = () => async (req, res) => {
const body = await pullout(req);
res.end(body);
};
const {request} = require('serve-once')(putMiddleware);
const {body} = await request.put('/', {
body: [1, 2, 3],
});
console.log(JSON.parse(body));
// returns
[1, 2, 3];You can use default options:
// default options
const middleware = (options) => (req, res) => {
res.end(JSON.stringify(options));
};
const {request} = require('serve-once')(middleware, {
a: 1,
});
const options = {
b: 2,
};
const {body} = await request.get('/', {
options,
});
JSON.parse(body);
// returns
({
a: 1,
b: 2,
});MIT
