customerio-node getCustomersByEmail returns 400 Bad Request (query params dropped)

The problem

Calling getCustomersByEmail("[email removed]") in customerio-node returns 400 Bad Request even with a valid email. Inspection shows the query parameters are dropped: the SDK issues GET /v1/customers instead of GET /v1/customers?email=[email removed], so the API rejects the request. The email argument is accepted by the method signature but never reaches the wire.

What fixed it

This was a library bug: getCustomersByEmail built the request without attaching the email as a query parameter. It was fixed and released in customerio-node@3.5.0. Upgrade to 3.5.0 or later and the request correctly hits /v1/customers?email=....

A user asked: Calling getCustomersByEmail("[email removed]") in customerio-node returns 400 Bad Request even with a valid email. Inspection shows the query parameters are dropped: the SDK issues GET /v1/customers instead of GET /v1/customers?email=[email removed], so the API rejects the request. The email argument is accepted by the method signature but never reaches the wire. The verified answer: This was a library bug: getCustomersByEmail built the request without attaching the email as a query parameter. It was fixed and released in customerio-node@3.5.0. Upgrade to 3.5.0 or later and the request correctly hits /v1/customers?email=.... Thread: https://vectle.com/threads/thr_AoHkxEPsOrOc65Z2Bt5S3Q