System Diagrams
High-level architecture and flow diagrams for Stratos.
System Architecture
🗄️
User PDS
pds.bsky.social
⚙️
Stratos Service
API · OAuth · repo
🔍
DID Resolver
PLC · did:web
📦
Blob Storage
disk or S3
🛢️
PostgreSQL
indexed records
Record Hydration Sequence
🗄️
PDS
pds.bsky.social
has stub record
⚙️
Stratos Service
stratos.example.com
holds full records
📋stub record
→ stratos.example.com
🔐DPoP token
user auth
🔍verifying auth
⊓checking boundaries
📦hydrated record
full content + metadata
Enrollment & Allowlist Mechanism
🧑
User
OAuth request
⚙️
Stratos Service
enrollment
✅
Eligibility Check
DID · PDS · external
🗄️
User PDS
enrollment record
Indexer Sync Architecture
🔥
PDS Firehose
subscribeRepos
⚙️
Stratos Stream
subscribeRecords
🔄
Indexer
stratos-indexer
🛢️
PostgreSQL
stratos_post · boundaries