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Zookeeper REST API

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Difrex/zoorest

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Zookeeper REST API

Table of Contents

Usage

Usage of ./zoorest:  -listen string    Address to listen (default "127.0.0.1:8889")  -mc    Enable memcached support  -mchosts string    Memcached servers. Comma separated (default "127.0.0.1:11211")  -mcprefix string    Memcached key prefix (default "zoorest")  -path string    Zk root path (default "/")  -zk string    Zk servers. Comma separated (default "127.0.0.1:2181")

NOTE: If memcached support is enabled zkStat metrics will not be returned.

Typical usage scheme:

tupical usage

CORS

Cross-origin resource sharing is a feature that securely allows access to a zoorest instance from a web browser. This is an optional feature and is disabled by default. It is enabled and configured via OS environment variables.

ZOOREST_CORS_ENABLEenable the feature. Any non-empty value is considered "true" and enables it.default: false

ZOOREST_CORS_DEBUG_ENABLEenable CORS debug mode Any non-null value is considered "true" and enables it.default: false

ZOOREST_CORS_ALLOWED_ORIGINScomma delimited list of origin url patterns to allow access to the service.default: * (any origin)

API v1

List node childrens

Method:GET

Location:/v1/ls

Return JSON

curl -s -XGET http://127.0.0.1:8889/v1/ls/ | jq{"childrens": ["two","three","one"  ],"path":"/zoorest","state":"OK","error":""}

Errors

curl -s -XGET http://127.0.0.1:8889/v1/ls/does/not/exist | jq{"childrens":null,"path":"","state":"ERROR","error":"zk: node does not exist"}

Get node data

Method:GET

Location:/v1/get

Return JSON

curl -s -XGET http://127.0.0.1:8889/v1/get/one/data | jq{  "path": "/zoorest/one/data",  "state": "OK",  "error": "",  "data": "eyJzb21lIjogImpzb24ifQ=="}

Node data stored indata field as base64 encoded string

echo eyJzb21lIjogImpzb24ifQ== | base64 -d{"some": "json"}

Errors

curl -s -XGET http://127.0.0.1:8889/v1/get/does/not/exist | jq{"path":"","state":"ERROR","error":"zk: node does not exist","data":null}

Get node data as JSON

Method:GET

Location:/v1/get/path/to/node+json

Simple add to the end of the path+jsonReturn JSON

curl -s -XGET http://127.0.0.1:8889/v1/json/one/data+json | jq{  "path": "/json/one/data",  "state": "OK",  "error": "",  "zkstat": {    "Czxid": 45,    "Mzxid": 55,    "Ctime": 1564645641612,    "Mtime": 1564646317882,    "Version": 6,    "Cversion": 0,    "Aversion": 0,    "EphemeralOwner": 0,    "DataLength": 28,    "NumChildren": 0,    "Pzxid": 45  },  "data": {    "ok": true,    "some": "data"  }}

Errors

curl -s -XGET http://127.0.0.1:8889/v1/get/invalid/json+json | jq{"path":"/invalid/json","state":"ERROR","error":"JSON parsing failure: invalid character 'i' looking for beginning of value","zkstat": {"Czxid":45,"Mzxid":56,"Ctime":1564645641612,"Mtime":1564646350753,"Version":7,"Cversion":0,"Aversion":0,"EphemeralOwner":0,"DataLength":17,"NumChildren":0,"Pzxid":45  },"data":null}

Create node recursive

Method:PUT

Location:/v1/up

Return string with created path

curl -XPUT http://127.0.0.1:8889/v1/up/two/three/four -d '{"four": "json"}'/zoorest/two/three/four

Create node children

Method:PATCH

Location:/v1/up

Return string with created children path

curl -XPATCH http://127.0.0.1:8889/v1/up/one/test -d 'test'/one/test

Errors

curl -XPATCH http://127.0.0.1:8889/v1/up/six/test -d '{"six": "json"}'zk: node does not exist

Update node

Method:POST

Location:/v1/up

Return string with updated path

curl -XPOST http://127.0.0.1:8889/v1/up/two -d '{"two": "json"}'/zoorest/two

Errors

curl -XPOST http://127.0.0.1:8889/v1/up/twa -d '{"two": "json"}'zk: node does not exist

Delete node recursive

Method:DELETE

Location:/v1/rmr

Return string with removed path

curl -XDELETE http://127.0.0.1:8889/v1/rmr/two/zoorest/two

API v2

List node childrens

Method:LIST

Return JSON

curl -s -XGET http://127.0.0.1:8889/v2/ | jq{"childrens": ["two","three","one"  ],"path":"/zoorest","state":"OK","error":""}

Errors

curl -s -XGET http://127.0.0.1:8889/v2/does/not/exist | jq{"childrens":null,"path":"","state":"ERROR","error":"zk: node does not exist"}

Get node data

Method:GET

Return JSON

curl -s -XGET http://127.0.0.1:8889/v2/one/data | jq{  "path": "/zoorest/one/data",  "state": "OK",  "error": "",  "data": "eyJzb21lIjogImpzb24ifQ=="}

Node data stored indata field as base64 encoded string

echo eyJzb21lIjogImpzb24ifQ== | base64 -d{"some": "json"}

Errors

curl -s -XGET http://127.0.0.1:8889/v2/does/not/exist | jq{"path":"","state":"ERROR","error":"zk: node does not exist","data":null}

Get node data as JSON

Method:GET

Location:/v2/path/to/node+json

Simple add to the end of the path+jsonReturn JSON

curl -s -XGET http://127.0.0.1:8889/v2/json/one/data+json | jq{  "path": "/json/one/data",  "state": "OK",  "error": "",  "zkstat": {    "Czxid": 45,    "Mzxid": 55,    "Ctime": 1564645641612,    "Mtime": 1564646317882,    "Version": 6,    "Cversion": 0,    "Aversion": 0,    "EphemeralOwner": 0,    "DataLength": 28,    "NumChildren": 0,    "Pzxid": 45  },  "data": {    "ok": true,    "some": "data"  }}

Errors

curl -s -XGET http://127.0.0.1:8889/v2/invalid/json+json | jq{"path":"/invalid/json","state":"ERROR","error":"JSON parsing failure: invalid character 'i' looking for beginning of value","zkstat": {"Czxid":45,"Mzxid":56,"Ctime":1564645641612,"Mtime":1564646350753,"Version":7,"Cversion":0,"Aversion":0,"EphemeralOwner":0,"DataLength":17,"NumChildren":0,"Pzxid":45  },"data":null}

Create node recursive

Method:PUT

Return string with created path

curl -XPUT http://127.0.0.1:8889/v2/two/three/four -d '{"four": "json"}'/zoorest/two/three/four

Create node children

Method:PATCH

Return string with created children path

curl -XPATCH http://127.0.0.1:8889/v2/one/test -d 'test'/one/test

Errors

curl -XPATCH http://127.0.0.1:8889/v2/six/test -d '{"six": "json"}'zk: node does not exist

Update node

Method:POST

Return string with updated path

curl -XPOST http://127.0.0.1:8889/v2/two -d '{"two": "json"}'/zoorest/two

Errors

curl -XPOST http://127.0.0.1:8889/v2/twa -d '{"two": "json"}'zk: node does not exist

Delete node recursive

Method:DELETE

Return string with removed path

curl -XDELETE http://127.0.0.1:8889/v2/two/zoorest/two

Errors

curl -XPOST http://127.0.0.1:8889/v2/twoMethod POST not alowed

Build

Binary

Set GOPATH variable

export GOPATH ${HOME}/.local

Get source code

go get github.com/Difrex/zoorest/rest

Get dependencies

cd ${GOPATH}/src/github.com/Difrex/zoorestgo get -t -v ./...

Build staticaly linked binary

go build -ldflags "-linkmode external -extldflags -static"

Build dynamicaly linked binary

go build

Build dynamicaly linked binary with gcc

go build -compile gccgo

Docker build

Binary file

Build binary with the Docker

git clone https://github.com/Difrex/zoorest.gitcd zoorest./build.sh docker-binary

Result binary file will be placed in out/ dir

Docker image

Build Alpine based docker image

git clone https://github.com/Difrex/zoorest.gitcd zoorest./build.sh docker

Image will be tagged as zoorest:latest

Get docker image

Pull image

docker pull lessmore/zoorest

And run it

/usr/bin/docker run -d -p 8889:8889 --name zoorest lessmore/zoorest:latest --zk zoo1:2181,zoo2:2181,zoo3:2181 --path /zoorest/jail --listen 0.0.0.0:8889 -mc -mchosts mc1:11211,mc2:11211,mc3:11211

AUTHORS

Denis Zheleztsovdifrex.punk@gmail.com

LICENSE

GPLv3 seeLICENSE

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