## 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\"))"
```