packages/plugin-router-hapi/src/adapter.ts
import type * as _ from '@microfleet/plugin-opentracing'
import Errors from 'common-errors'
import { noop } from 'lodash'
import { FORMAT_HTTP_HEADERS, SpanContext } from 'opentracing'
import { Request } from '@hapi/hapi'
import { boomify } from '@hapi/boom'
import { Microfleet } from '@microfleet/core'
import { ActionTransport, ServiceRequest } from '@microfleet/plugin-router'
import { HttpStatusError } from '@microfleet/validation'
declare module '@hapi/boom' {
interface Payload {
name?: string
}
}
export default function getHapiAdapter(actionName: string, service: Microfleet): (r: Request) => Promise<any> {
const { router } = service
// pre-wrap the function so that we do not need to actually do fromNode(next)
const reformatError = (error: any) => {
let statusCode
let errorMessage
const { errors } = error
switch (error.constructor) {
case Errors.AuthenticationRequiredError:
statusCode = 401
break
case Errors.ValidationError:
statusCode = 400
break
case Errors.NotPermittedError:
statusCode = 403
break
case Errors.NotFoundError:
statusCode = 404
break
default:
statusCode = error.statusCode || 500
}
if (Array.isArray(errors) && errors.length > 0) {
if (error.constructor === HttpStatusError) {
errorMessage = error.message ? undefined : errors.map(e => `${e.field} ${e.message}`).join(';')
} else {
const [nestedError] = errors
errorMessage = nestedError.text || nestedError.message || undefined
}
}
const replyError = boomify(error, { statusCode, message: errorMessage })
if (error.name) {
replyError.output.payload.name = error.name
}
return replyError
}
return async function handler(request: Request) {
const { headers } = request
let parentSpan: SpanContext | null = null
if (service.tracer !== undefined) {
parentSpan = service.tracer.extract(FORMAT_HTTP_HEADERS, headers)
}
const serviceRequest: ServiceRequest = {
// defaults for consistent object map
// opentracing
// set to console
// transport type
headers,
parentSpan,
action: noop as any,
locals: Object.create(null),
log: console as any,
method: request.method,
params: request.payload,
query: request.query,
route: actionName,
span: null,
transport: ActionTransport.http,
transportRequest: request,
reformatError: true,
}
let response
try {
response = await router.dispatch(serviceRequest)
} catch (e: any) {
response = reformatError(e)
}
return response
}
}