Campaigns API

Endpoints

GET /v1/campaigns
POST /v1/campaigns {name, list_id, subject, html}
GET /v1/campaigns/{id}
POST /v1/campaigns/{id}/send
POST /v1/campaigns/{id}/schedule {send_at}
GET /v1/campaigns/{id}/stats
POST /v1/campaigns/{id}/pause
POST /v1/campaigns/{id}/resume