| 116 | } |
| 117 | |
| 118 | function validateParam (validatorFunction, request, paramName) { |
| 119 | const isUndefined = request[paramName] === undefined |
| 120 | let ret |
| 121 | |
| 122 | try { |
| 123 | ret = validatorFunction?.(isUndefined ? null : request[paramName]) |
| 124 | } catch (err) { |
| 125 | // If validator throws synchronously, ensure it propagates as an internal error |
| 126 | err.statusCode = 500 |
| 127 | return err |
| 128 | } |
| 129 | |
| 130 | if (ret && typeof ret.then === 'function') { |
| 131 | return ret |
| 132 | .then((res) => { return answer(res) }) |
| 133 | .catch(err => { return err }) // return as simple error (not throw) |
| 134 | } |
| 135 | |
| 136 | return answer(ret) |
| 137 | |
| 138 | function answer (ret) { |
| 139 | if (ret === false) return validatorFunction.errors |
| 140 | if (ret && ret.error) return ret.error |
| 141 | if (ret && ret.value) request[paramName] = ret.value |
| 142 | return false |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | function validate (context, request, execution) { |
| 147 | const runExecution = execution === undefined |