Skywalking-10：Skywalking查询协议——GraphQL
GraphQL
GraphQL 基础
参照Getting started with GraphQL Java and Spring Boot这篇文章学习即可
PS：可以使用 brew install --cask graphql-playground 安装 graphql for mac 客户端。
IDEA 怎么调试 GraphQL 应用
安装 JS GraphQL 插件
点击JS GraphQL安装插件
GraphQL 定义
schema.graphqls
type Query {
bookById(id: ID): Book
}
type Book {
id: ID
name: String
pageCount: Int
author: Author
}
type Author {
id: ID
firstName: String
lastName: String
}
GraphQL 配置文件
.graphqlconfig
{
"name": "book-details",
"schemaPath": "schema.graphqls",
"extensions": {
"endpoints": {
"Default GraphQL Endpoint": {
"url": "http://localhost:8080/graphql", // 请求路径
"headers": {
"user-agent": "JS GraphQL"
},
"introspect": false
}
}
}
}
创建一个查询文件
query.graphql
# {"id": "book-1"}
query queryData($id: ID) {
bookById(id: $id) {
id name pageCount author {
id firstName lastName
}
}
}
GraphQL 脚本目录结构
resources
├── .graphqlconfig # 配置文件
├── query.graphql # 查询文件
└── schema.graphqls # 定义文件
执行结果
GraphQL 在 Skywalking 中的应用
graphql 协议文件路径： oap-server/server-query-plugin/query-graphql-plugin/src/main/resources/query-protocol
GraphQL 配置文件
.graphqlconfig
{
"name": "skywalking",
"schemaPath": "schema.graphql",
"extensions": {
"endpoints": {
"Default GraphQL Endpoint": {
"url": "http://localhost:8080/graphql",
"headers": {
"user-agent": "JS GraphQL"
},
"introspect": true
}
}
}
}
创建一个查询文件
query.graphql
query queryData {
readMetricsValues(
duration: {start: "2021-07-03 1400",end: "2021-07-03 1401", step: MINUTE},
condition: {
name: "instance_jvm_thread_runnable_thread_count",
entity: {
scope: ServiceInstance,
serviceName: "business-zone::projectA",
serviceInstanceName: "e8cf34a1d54a4058a8c98505877770e2@192.168.50.113",
normal: true
}
}
) {
label values{ values{ id value }}
}
}
执行结果
{
"data": {
"readMetricsValues": {
"values": {
"values": [
{
"id": "202107031400_YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.1_ZThjZjM0YTFkNTRhNDA1OGE4Yzk4NTA1ODc3NzcwZTJAMTkyLjE2OC41MC4xMTM=",
"value": 22
},
{
"id": "202107031401_YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.1_ZThjZjM0YTFkNTRhNDA1OGE4Yzk4NTA1ODc3NzcwZTJAMTkyLjE2OC41MC4xMTM=",
"value": 22
}
]
}
}
}
}
