本项目基于CodeIgniter框架，主要为提供API接口快速初始化，只需关注实现业务逻辑即可。着重实现以下几点：
- 接口协议封装，支持两种接口协议，支持GET和POST请求
- 模型层方便读取多个数据库
- 支持记录SQL日志和API日志，方便进行接口调试
- 代码流程清晰。增加服务层、API调用层，并可根据需要进行扩展
- 其他一些常用方法封装。
说明： 本项目不是直接生成代码，而是提供一套API接口的模版，用项目中的代码即可快速实现API项目初始化。可配合CodeIgniter-CodeHelper生成模型。
拷贝代码到web目录下，并配置Nginx站点，如：
server
{
listen 80;
server_name api.local;
index index.html index.php;
root /Users/peng/workspace/CodeIgniter-Api/public;
location /
{
if (!-e $request_filename)
{
rewrite . /index.php last;
}
}
location ~ .*\.(php|php5)?$
{
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fastcgi.conf;
}
}
目录application/cache、application/logs给写权限。
doc/demo.sql为示例SQL，初始化之后调整config/database.php中的配置，确保数据库配置正确。
demo/demo.index.php为示例接口，切换到该目录下。执行：
pengbotao:demo peng$ php demo.index.php
http://api.local/demo
{"id":1555209269,"client":{"caller":"test","ext":""},"encrypt":"md5","sign":"37cca052f85eac8dacce69924bdd06fa","data":{"user_id":1,"t":1555209269}}
HTTP/1.1 200 OK
Server: nginx/1.10.3
Date: Sun, 14 Apr 2019 02:34:34 GMT
Content-Type: application/json;charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/7.1.2
{"id":"20190414103434650294","status":{"code":0,"msg":"\u64cd\u4f5c\u6210\u529f"},"data":{"user":{"user_id":"1","username":"demo","status":"1","created_ts":"2019-04-14 10:13:15"},"order":[{"order_id":"1","user_id":"1","order_title":"\u8ba2\u5355\u6807\u9898","created_ts":"2019-04-14 10:14:30"}]}}
demo下实现了GET和POST两种方式访问，http_request("demo", $data);将http_request改为http_get即为GET请求。默认为POST请求。
pengbotao:demo peng$ php demo.index.php
http://api.local/demo?_id=1555209344&_caller=test&_encrypt=simple&_sign=c18df4f6ee5fe0c5c376a6e24918b61f&user_id=1&t=1555209344
HTTP/1.1 200 OK
Server: nginx/1.10.3
Date: Sun, 14 Apr 2019 02:35:49 GMT
Content-Type: application/json;charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/7.1.2
{"id":"20190414103549563372","status":{"code":0,"msg":"\u64cd\u4f5c\u6210\u529f"},"data":{"user":{"user_id":"1","username":"demo","status":"1","created_ts":"2019-04-14 10:13:15"},"order":[{"order_id":"1","user_id":"1","order_title":"\u8ba2\u5355\u6807\u9898","created_ts":"2019-04-14 10:14:30"}]}}
application/config下的deveopment、production、testing目录（目录不存在可自行创建）对应index.php中的不同环境，可将database.php等需要修改的配置文件移到对应目录下，当框架环境对应的目录里存在配置文件时会优先读取。application/constants.php中可以配置打开或关闭日志、多数据库对应常量。日志存放在apaplication/logs目录下。application/caller.php为请求相关配置信息。application/models可由CodeIgniter-CodeHelper中直接生成后使用。- 签名流程在
application/service/api_sign_service.php中，可根据需要调整。 - 接口文档示例和签名文档在
doc目录