feat: single lookup (CM-1060) (#3964)

Signed-off-by: Umberto Sgueglia <usgueglia@contractor.linuxfoundation.org>

Author: ulemons

backend/src/api/public/v1/affiliations/getAffiliationByHandle.ts

@@ -0,0 +1,36 @@
+import type { Request, Response } from 'express'
+
+import { NotFoundError } from '@crowd/common'
+import {
+  findMembersByGithubHandles,
+  findVerifiedEmailsByMemberIds,
+  optionsQx,
+  resolveAffiliationsByMemberIds,
+} from '@crowd/data-access-layer'
+
+import { ok } from '@/utils/api'
+
+export async function getAffiliationByHandle(req: Request, res: Response): Promise<void> {
+  const handle = req.params.githubHandle.toLowerCase()
+  const qx = optionsQx(req)
+
+  const members = await findMembersByGithubHandles(qx, [handle])
+  if (members.length === 0) {
+    throw new NotFoundError(`No LFX profile found for GitHub login '${req.params.githubHandle}'.`)
+  }
+
+  const member = members[0]
+  const memberIds = [member.memberId]
+
+  const [emailRows, affiliationsByMember] = await Promise.all([
+    findVerifiedEmailsByMemberIds(qx, memberIds),
+    resolveAffiliationsByMemberIds(qx, memberIds),
+  ])
+
+  ok(res, {
+    githubHandle: member.githubHandle,
+    name: member.displayName,
+    emails: emailRows.map((r) => r.email),
+    affiliations: affiliationsByMember.get(member.memberId) ?? [],
+  })
+}

backend/src/api/public/v1/affiliations/index.ts

@@ -5,6 +5,7 @@ import { requireScopes } from '@/api/public/middlewares/requireScopes'
 import { safeWrap } from '@/middlewares/errorMiddleware'
 import { SCOPES } from '@/security/scopes'
 
+import { getAffiliationByHandle } from './getAffiliationByHandle'
 import { getAffiliations } from './getAffiliations'
 
 const rateLimiter = createRateLimiter({ max: 60, windowMs: 60 * 1000 })
@@ -15,6 +16,11 @@ export function memberOrganizationAffiliationsRouter(): Router {
   router.use(rateLimiter)
 
   router.post('/', requireScopes([SCOPES.READ_AFFILIATIONS]), safeWrap(getAffiliations))
+  router.get(
+    '/:githubHandle',
+    requireScopes([SCOPES.READ_AFFILIATIONS]),
+    safeWrap(getAffiliationByHandle),
+  )
 
   return router
 }