@easytool/mock-server
v0.2.11
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For front-end developers who need a quick back-end for mock data.
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@easytool/mock-server
For front-end developers who need a quick back-end for mock data.
Features
- mock data
- mock file download
- Matching by request URL and method
- Custom Response delay, status and headers
- Support third-party simulation data lib, like Mock.js and Faker.js
- Support forward to other api server (by http-proxy-middleware) when no matching data in mock server
Install
npm install -g @easytool/mock-server
Usage
1. Write mock data in source directory
data/user.js
module.exports = [{
request: {
url: '/user/:id'
},
response: {
body: {
id: 123,
name: 'Stephen',
age: 30
}
}
}];
2. Start mock server
mock-server ./data
3. Request URL
http://localhost:3000/user/1
CLI
mock-server [options] <source>
Options:
--config, -c Path to config file
--host, -H Set host [default: "localhost"]
--port, -P Set port [default: 3000]
--proxy, -p Set http-proxy-middleware target [string]
--watch, -w Watch file(s) [boolean]
--static, -s Set static(download) files directory [string]
Example
mock-server -H localhost -P 3001 -p http://api.xxx.com ./data
API
startup({
host,
port,
proxy, // Set http-proxy-middleware options when No matching data in mock server then will use this proxy
watch,
sourcePath, // mock data file path
staticPath // mock download file path
}, settings) // global config
Example
let mockServer = require('@easytool/mock-server');
mockServer.startup({
host: 'localhost',
port: 3001,
proxy: 'http://api.xxx.com' || { target: http://api.xxx.com },
watch: true,
sourcePath: './data',
staticPath: './static'
});
Config
Mock Data Format
You could add any js file or folder to source directory. Nested files are supported and use DFS.
{
// ignore this item
ignore: false, // optional
// 'request' is use for matching response data
request: {
// 'url' is use for compare request url.
url: '/xxx/xxx', // require
// 'method' is use for compare request method.
method: 'get', // optional
protocol: 'http' // optional
},
// 'response' is use for set response data
response: { // require
// 'delay' is use for delay response time.
delay: 0, // default
// 'status' is use for delay response time.
status: 200, // default
// 'headers' use for set response header. default to below.
headers: { // default
'Content-Type': 'application/json; charset=UTF-8',
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Credentials': 'true',
'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type, Accept'
},
// 'body' is use for set response body, string, object and array are supported, if type to String and end with '.xxx' means this is a file path and root path is by --static argument, you can change it in default setting with "staticPath" option.
body: { // require
...
}
}
}
Default Settings
You could configure default setting in config file.
mock-server ./data --config=mock.config.js
mock.config.js
var path = require('path');
module.exports = {
host: 'localhost', // default
port: 3000, // default
proxy: false, // default, support http-proxy-middleware options
watch: false, // default
// search order with mock data files.
searchOrder(filenames) {
return filenames.sort(); // default
},
// global response settings
response: {
// will merge to your specific response headers.
headers: { // default
'Content-Type': 'application/json; charset=UTF-8',
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type, Accept'
}
}
}
Routes
There are three pattern to match request url.
{
request: {
// matches /user/stephen and /user/ricky
url: '/user/:name',
// matches /files/hello.jpg and /files/world.png
url: '/files/*.*',
// matches /files/hello.jpg and /files/path/to/world.jpg
url: '/**/*.jpg'
},
...
}
Example
Mock data
GET http://localhost:3000/user/list
module.exports = [{
request: {
url: '/user/list',
method: 'get'
},
response: {
delay: 2000,
body: [{
id: 123,
name: 'Stephen',
age: 30
}, {
id: 124,
name: 'Ricky',
age: 20
}]
}
}];
mock-server ./data
Mock file download
POST http://localhost:3000/download/sample
module.exports = [{
request: {
url: '/download/:filename',
method: 'get'
},
response: {
delay: 1000,
headers: {
'Content-Type': 'text/plain',
'Content-Disposition': 'attachment;filename=sample.txt;'
},
body: '<static>/sample.txt' // store download file sample.txt to static directory(use --static argument to set).
}
}];
mock-server ./data --static=./static
Work with Mock.js
npm i mockjs
GET http://localhost:3000/user/list
var Mock = require('mockjs');
module.exports = [{
request: {
url: '/user/list',
method: 'get'
},
response: {
body: Mock.mock({
'data|20': [{
id: '@integer(0, 10000)',
name: '@name',
email: '@email'
}]
}).data
}
}];
Work with Faker.js
npm i faker
GET http://localhost:3000/user/123
var faker = require('faker');
module.exports = [{
request: {
url: '/user/:id',
method: 'get'
},
response: {
body: {
id: faker.random.uuid(),
name: faker.name.findName(),
email: faker.internet.email()
}
}
}];