budibase/packages/backend-core/src/context/FunctionContext.js

48 lines
1.2 KiB
JavaScript

const cls = require("../clshooked")
const { newid } = require("../hashing")
const REQUEST_ID_KEY = "requestId"
const MAIN_CTX = cls.createNamespace("main")
function getContextStorage(namespace) {
if (namespace && namespace.active) {
let contextData = namespace.active
delete contextData.id
delete contextData._ns_name
return contextData
}
return {}
}
class FunctionContext {
static run(callback) {
return MAIN_CTX.runAndReturn(async () => {
const namespaceId = newid()
MAIN_CTX.set(REQUEST_ID_KEY, namespaceId)
const namespace = cls.createNamespace(namespaceId)
let response = await namespace.runAndReturn(callback)
cls.destroyNamespace(namespaceId)
return response
})
}
static setOnContext(key, value) {
const namespaceId = MAIN_CTX.get(REQUEST_ID_KEY)
const namespace = cls.getNamespace(namespaceId)
namespace.set(key, value)
}
static getFromContext(key) {
const namespaceId = MAIN_CTX.get(REQUEST_ID_KEY)
const namespace = cls.getNamespace(namespaceId)
const context = getContextStorage(namespace)
if (context) {
return context[key]
} else {
return null
}
}
}
module.exports = FunctionContext