Rest Endpoint Load Components

import com.onresolve.scriptrunner.runner.rest.common.CustomEndpointDelegate
import groovy.json.JsonBuilder
import groovy.transform.BaseScript

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.project.Project
import com.atlassian.jira.bc.project.component.ProjectComponent

import javax.ws.rs.core.MultivaluedMap
import javax.ws.rs.core.Response

@BaseScript CustomEndpointDelegate delegate


def projectManager = ComponentAccessor.getProjectManager()
def projectComponentManager = ComponentAccessor.getProjectComponentManager()

getComponent(httpMethod: "GET",groups: ["jira-software-users","jira-administrators"]) { MultivaluedMap queryParams, String body ->

    def query = queryParams.getFirst("query") as String
    def projectKey = queryParams.getFirst("projectKey") as String

    assert projectKey != null
    
    def projectSource = projectManager.getProjectObjByKeyIgnoreCase(projectKey)

    assert projectSource != null
    
    def componentList = projectComponentManager.findAllForProject(projectSource.getId())
    
    if(query!=null){
        componentList = componentList.findAll {it->it.getName().toLowerCase().contains(query.toLowerCase())}
    }
    
    def rt = [
            items : componentList.collect { ProjectComponent row ->
                [
                    value: row.getName(),
                    html:  "<b>${row.getName()}</b>" ,
                    label: row.getName(),
                ]
            },
            total: componentList.size(),
        	footer: "Choose component from project ${projectKey}... "
        ]

    return Response.ok(new JsonBuilder(rt).toString()).build();
}