## sample 8

### Authorize

 Can User::bob view Photo:VacationPhoto94.jpg

 Decision: Allow

```
cargo run  authorize \
    --policies policy.cedar \
    --entities entity.json \
    --request-json request.json
```

### Validation:

Is policy.cedar valid based on the schema schema.cedarschema

```
cargo run  validate \
    --policies policy.cedar \
    --schema schema.cedarschema
```

Evaluate

Evaluate a Cedar expression

```
cargo run  evaluate  \
    --request-json request.json \
    --entities entity.json \
     "principal.score.lessThan(decimal(\"1.2345\"))"
```