curl操作CouchDB

couchdb 服务器地址： 127.0.0.1

端口：5984

添加数据库

• 连接到couchdb

  curl -X GET http://127.0.0.1:5984

  {"couchdb":"Welcome","uuid":"1c81fc63d761c82c4f48bac34afd5eb8","version":"1.6.0","vendor":{"name":"The Apache Software Foundation","version":"1.6.0"}}

• 创建一个数据库db1

  curl -X PUT http://127.0.0.1:5984/db1

  {"ok":true}

• 创建数据库 db2

  curl -X PUT http://127.0.0.1:5984/db2

  {"ok":true}

• 列出当前所有的数据库

  curl -X GET http://127.0.0.1:5984/_all_dbs

  ["_replicator","_users","db1","db2"]

• 删除db2数据库

  curl -X DELETE http://127.0.0.1:5984/db2

  {"ok":true}

  删除成功

数据库操作

• 向数据库添加数据

  首先，获取一个uuid 
  curl -X GET http://127.0.0.1:5984/_uuids 
  {"uuids":["1925a2a284289df9b55b390525001ca1"]} 
  注意：每次得到的uuid不一样。 
  获取10个uuid： curl -X GET http://127.0.0.1:5984/_uuids?count=10

  使用uuid作为键插入一条数据 
  curl -X PUT http://127.0.0.1:5984/db1/1925a2a284289df9b55b390525001ca1 -d '{"title":"test","content":"this is test!"}' 
  {"ok":true,"id":"1925a2a284289df9b55b390525001ca1","rev":"1-4d3e6350fdcc39f7b482c4cab8ff5d9a"}

• 更新记录

  curl -X PUT http://127.0.0.1:5984/db1/1925a2a284289df9b55b390525001ca1 -d '{"title":"test","content":"this is test!modifyied!"}'

  {"error":"conflict","reason":"Document update conflict."} 
  失败了。因为，couchdb是按版本提交的，同一个源提交多次会造成一定的混乱。所以，其采用了版本进行控制。

  curl -X PUT http://127.0.0.1:5984/db1/1925a2a284289df9b55b390525001ca1 -d '{"_rev":"1-4d3e6350fdcc39f7b482c4cab8ff5d9a","title":"test","content":"this is test!"}'

  {"ok":true,"id":"1925a2a284289df9b55b390525001ca1","rev":"2-f6f24194b29981316f2412e288cda320"} 
  这样就没有问题了。

• 获取记录

  curl -X GET http://127.0.0.1:5984/db1/1925a2a284289df9b55b390525001ca1

  {"_id":"1925a2a284289df9b55b390525001ca1","_rev":"2-f6f24194b29981316f2412e288cda320","title":"test","content":"this is test!"}

• 列出db1库下的所有文档

  curl -X GET http://127.0.0.1:5984/db1/_all_docs

  {"total_rows":2,"offset":0,"rows":[ 
  {"id":"1925a2a284289df9b55b390525001ca1","key":"1925a2a284289df9b55b390525001ca1","value":{"rev":"2-f6f24194b29981316f2412e288cda320"}}, 
  {"id":"1925a2a284289df9b55b390525002c29","key":"1925a2a284289df9b55b390525002c29","value":{"rev":"1-4a1158c264f8cc636e1fc54a7a696de6"}} 
  ]}

• 删除记录

  curl -X DELETE http://127.0.0.1:5984/db1/1925a2a284289df9b55b390525001ca1?rev=2-f6f24194b29981316f2412e288cda320

上传附件

curl -X PUT http://127.0.0.1:5984/db1/40dab8a067c56aef572307dd1f0119c8 -d '{"title":"test","content":"this is test!"}' 
curl -X PUT http://127.0.0.1:5984/db1/40dab8a067c56aef572307dd1f0119c8/atwork.jpg?rev=2-2739352689 --data-binary @atwork.jpg -H "Content-Type:image/jpg" 
atwork.jpg是当前目录下的图片文件。

数据库复制

• 本地复制

  curl -X PUT http://127.0.0.1:5984/albums-replica 
  curl -X POST http://127.0.0.1:5984/_replicate -d '{"source":"albums","target":"albums-replica"}' -H "Content-Type: application/json"

• 本地到远端复制

  curl -X POST http://127.0.0.1:5984/_replicate -d '{"source":"albums","target":"http://example.org:5984/albums-replica"}' -H "Content-Type:application/json"

  如果远端服务器有密码，可以采用这种格式：http://username:pass@remotehost:5984/demo

• 远端到本地

  curl -X POST http://127.0.0.1:5984/_replicate -d '{"source":"http://example.org:5984/albums-replica","target":"albums"}' -H "Content-Type:application/json"

• 远端到远端

  curl -X POST http://127.0.0.1:5984/_replicate -d '{"source":"http://example.org:5984/albums","target":"http://example.org:5984/albums-replica"}' -H "Content-Type: application/json"