Today we will look into a very handy tool json-server, which can give you a mock rest json server in a minute.
今天，我們將研究一個非常方便的工具json-server，它可以在一分鐘內為您提供一個模擬剩余的json服務器。
支持json的數據庫？In a regular enterprise application, you work with many teams and third party APIs. Imagine you have to call a third party restful web service that will get you JSON data to work on. You are in a tight schedule, so you can’t wait for them to finish their work and then start your own. If you wish to have a mockup Rest Web service in place to get the demo data for you, then json-server is the tool you are looking for.
在常規企業應用程序中，您需要使用許多團隊和第三方API。 假設您必須調用第三方靜態Web服務 ，該服務將使您可以使用JSON數據。 您的時間安排很緊，所以您不能等他們完成工作然后再開始自己的工作。 如果您希望有一個原型Rest Web服務來為您獲取演示數據，那么json-server是您要尋找的工具。
JSON Server is a Node Module that you can use to create demo rest json webservice in less than a minute. All you need is a JSON file for sample data.
如何更新服務器端的json文件、 JSON Server是一個節點模塊，可用于在不到一分鐘的時間內創建演示剩余json網絡服務。 您只需要一個JSON文件即可獲取示例數據。
You should have NPM installed on your machine. If not, then refer this post to install NPM.
您應該在計算機上安裝NPM。 如果沒有，請參考這篇文章來安裝NPM 。
apijson教程。Below shows the one liner command to install json-server with output on my machine.
下面顯示了一個在我的機器上安裝json-server及其輸出的內襯命令。
$ npm install -g json-server
npm WARN deprecated graceful-fs@3.0.8: graceful-fs v3.0.0 and before will fail on node releases >= v7.0. Please update to graceful-fs@^4.0.0 as soon as possible. Use 'npm ls graceful-fs' to find it in the tree.
/usr/local/bin/json-server -> /usr/local/lib/node_modules/json-server/bin/index.js
- bytes@2.3.0 node_modules/json-server/node_modules/raw-body/node_modules/bytes
/usr/local/lib
└─┬ json-server@0.8.10├─┬ body-parser@1.15.1│ └── bytes@2.3.0├─┬ compression@1.6.1│ └── bytes@2.2.0├─┬ lowdb@0.10.3│ └─┬ steno@0.4.4│ └── graceful-fs@4.1.4├─┬ update-notifier@0.5.0│ └─┬ configstore@1.4.0│ ├── graceful-fs@4.1.4│ └─┬ write-file-atomic@1.1.4│ └── graceful-fs@4.1.4└─┬ yargs@4.7.0├─┬ pkg-conf@1.1.2│ └─┬ load-json-file@1.1.0│ └── graceful-fs@4.1.4└─┬ read-pkg-up@1.0.1└─┬ read-pkg@1.1.0└─┬ path-type@1.1.0└── graceful-fs@4.1.4$$ json-server -v
0.8.10$ json-server -help
/usr/local/bin/json-server [options] <source>Options:--config, -c Path to config file [default: "json-server.json"]--port, -p Set port [default: 3000]--host, -H Set host [default: "0.0.0.0"]--watch, -w Watch file(s) [boolean]--routes, -r Path to routes file--static, -s Set static files directory--read-only, --ro Allow only GET requests [boolean]--no-cors, --nc Disable Cross-Origin Resource Sharing [boolean]--no-gzip, --ng Disable GZIP Content-Encoding [boolean]--snapshots, -S Set snapshots directory [default: "."]--delay, -d Add delay to responses (ms)--id, -i Set database id property (e.g. _id) [default: "id"]--quiet, -q Suppress log messages from output [boolean]$Now it’s time to start our json-server. Below is a sample file with my employees json data.
Java json。 現在是時候啟動我們的json服務器了。 以下是包含我的員工json數據的示例文件。
{"employees": [{"id": 1,"name": "Pankaj","salary": "10000"},{"name": "David","salary": "5000","id": 2}]
}Important point here is the name of array i.e employees. JSON server will create the REST APIs based on this. Let’s start our json-server with above file.
這里的重點是數組的名稱，即employees。 JSON服務器將基于此創建REST API。 讓我們用上述文件啟動json服務器。
$ json-server --watch db.json\{^_^}/ hi!Loading db.jsonDoneResourceshttps://localhost:3000/employeesHomehttps://localhost:3000Type s + enter at any time to create a snapshot of the databaseWatching...json sql、Don’t close this terminal, otherwise it will kill the json-server. Below are the sample CRUD requests and responses.
不要關閉此終端，否則它將殺死json-server。 以下是示例CRUD請求和響應。
$ curl -X GET -H "Content-Type: application/json" "https://localhost:3000/employees"
[{"id": 1,"name": "Pankaj","salary": "10000"},{"name": "David","salary": "5000","id": 2}
]
$$ curl -X GET -H "Content-Type: application/json" "https://localhost:3000/employees/1"
{"id": 1,"name": "Pankaj","salary": "10000"
}
$$ curl -X POST -H "Content-Type: application/json" -d '{"name": "Lisa","salary": "2000"}' "https://localhost:3000/employees"
{"name": "Lisa","salary": 2000,"id": 3
}
$$ curl -XPUT -H "Content-Type: application/json" -d '{"name": "Lisa", "salary": "8000"}' "https://localhost:3000/employees/3"
{"name": "Lisa","salary": 8000,"id": 3
}
$$ curl -X DELETE -H "Content-Type: application/json" "https://localhost:3000/employees/2"
{}
$ curl -GET -H "Content-Type: application/json" "https://localhost:3000/employees"
[{"id": 1,"name": "Pankaj","salary": "10000"},{"name": "Lisa","salary": 8000,"id": 3}
]
$As you can see that with a simple JSON, json-server creates demo APIs for us to use. Note that all the PUT, POST, DELETE requests are getting saved into db.json file.
怎么安裝json。 如您所見，json-server通過簡單的JSON創建了供我們使用的演示API。 請注意，所有的PUT，POST，DELETE請求都將保存到db.json文件中。
Now the URIs for GET and DELETE are same, similarly it’s same for POST and PUT requests. Well, we can create our custom URIs too with a simple mapping file.
現在，GET和DELETE的URI相同，而POST和PUT請求的URI相同。 好了，我們也可以使用一個簡單的映射文件來創建自定義URI。
mysql json？Create a file with custom routes for our json-server to use.
創建一個具有自定義路由的文件，供我們的json服務器使用。
routes.json
routes.json
{"/employees/list": "/employees","/employees/get/:id": "/employees/:id","/employees/create": "/employees","/employees/update/:id": "/employees/:id","/employees/delete/:id": "/employees/:id"
}We can also change the json-server port and simulate like a third party API, just change the base URL when the real service is ready and you will be good to go.
我們還可以更改json服務器端口并像第三方API一樣進行仿真，只需在實際服務就緒時更改基本URL，您就可以使用了。
Now start the JSON server again as shown below.
現在，如下所示再次啟動JSON服務器。
$ json-server --port 7000 --routes routes.json --watch db.json
(node:60899) fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.\{^_^}/ hi!Loading db.jsonLoading routes.jsonDoneResourceshttps://localhost:7000/employeesOther routes/employees/list -> /employees/employees/get/:id -> /employees/:id/employees/create -> /employees/employees/update/:id -> /employees/:id/employees/delete/:id -> /employees/:idHomehttps://localhost:7000Type s + enter at any time to create a snapshot of the databaseWatching...It’s showing the custom routes defined by us.
它顯示了我們定義的自定義路線。
Below is the example of some of the commands and their output with custom routes.
以下是一些命令及其帶有自定義路由的輸出示例。
$ curl -X GET -H "Content-Type: application/json" "https://localhost:7000/employees/list"
[{"id": 1,"name": "Pankaj","salary": "10000"},{"name": "Lisa","salary": 8000,"id": 3}
]$ curl -X GET -H "Content-Type: application/json" "https://localhost:7000/employees/get/1"
{"id": 1,"name": "Pankaj","salary": "10000"
}$ curl -X POST -H "Content-Type: application/json" -d '{"name": "Lisa","salary": "2000"}' "https://localhost:7000/employees/create"
{"name": "Lisa","salary": 2000,"id": 4
}$ curl -XPUT -H "Content-Type: application/json" -d '{"name": "Lisa", "salary": "8000"}' "https://localhost:7000/emloyees/update/4"
{"name": "Lisa","salary": 8000,"id": 4
}$ curl -XDELETE -H "Content-Type: application/json" "https://localhost:7000/employees/delete/4"
{}$ curl -GET -H "Content-Type: application/json" "https://localhost:7000/employees/list"
[{"id": 1,"name": "Pankaj","salary": "10000"},{"name": "Lisa","salary": 8000,"id": 3}
]
$JSON server provides some other useful options such as sorting, searching and pagination. That’s all for json-server, it’s my go to tool whenever I need to create demo Rest JSON APIs.
JSON服務器提供了一些其他有用的選項，例如排序，搜索和分頁。 這就是json服務器的全部內容，當我需要創建演示Rest JSON API時，這就是我要使用的工具。
Reference: json-server GitHub
參考 ： json-server GitHub
翻譯自: https://www.journaldev.com/10660/json-server
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