# 3. Quick Reference

```bash
# cursor= and offset= are mutually exclusive;
# cursor takes precedence when both are provided
                                                                                                                                                                                   
GET /events/by-ledger
    ?from=&to=&limit=&offset=&cursor=                                                                                                                                            
                                                                                                                                                                                   
GET /events/by-contract/{id}
    ?limit=&offset=&cursor=                                                                                                                                                      
    ?from=&to=&limit=&offset=&cursor=
    ?topics=a,b,c&limit=&offset=&cursor= 
                                                                                                                                                                                   
GET /events/by-contracts
    ?contracts=a,b,c&limit=&offset=&cursor=                                                                                                                                      
                                                            
GET /events/by-topics
    ?topics=a,b,c&limit=&offset=&cursor=

GET /events/by-ledger/contracts                                                                                                                                                  
    ?contracts=a,b,c&from=&to=&limit=&offset=&cursor=
                                                                                                                                                                                   
GET /events/by-tx/{tx_hex}                                

GET /txs/by-ledger
    ?from=&to=&limit=&offset=&cursor=
                                                                                                                                                                                   
GET /txs/by-contract/{id}
    ?limit=&offset=&cursor=                                                                                                                                                      
    ?from=&to=&limit=&offset=&cursor=
                                                                                                                                                                                   
GET /txs/by-contracts
    ?contracts=a,b,c&limit=&offset=&cursor=                                                                                                                                      
                                                            
GET /txs/by-ledger/contracts
    ?contracts=a,b,c&from=&to=&limit=&offset=&cursor=
                                                                                                                                                                                   
GET /txs/by-hash/{tx_hex}
```