chore: improve dynamic parameter validation errors #18501
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johnstcn
approved these changes
Jun 23, 2025
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| Diagnostics hcl.Diagnostics | ||
| Parameter map[string]hcl.Diagnostics |
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suggestion: unexport and return a clone via method?
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No one should really mutate the diagnostics. But I can do that 👍
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Actually I am going to leave it for now. If I make a method to export it, I would either need 1 method to return both diag sets. Or 2 methods. I think the usage is less intuitive in those cases.
func (e *ResolveError) Diagnostics()(hcl.Diagnostics, map[string]hcl.Diagnostics)
// Or
// This name is not ideal, since Diagnostics does not include the parameter ones :thinking:
func (e *ResolveError) Diagnostics()(hcl.Diagnostics)
func (e *ResolveError) ParameterDiagnostics()(map[string]hcl.Diagnostics)
coderd/httpapi/httperror/wsbuild.go
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| Validations: nil, | ||
| } | ||
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| for name, diag := range parameterErr.Parameter { |
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suggestion: sort map keys for deterministic output?
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What this does
The current
BuildErrorresponse fromwsbuilderdoes not support rich errors from validation. Changed this to use theValidationsblock of codersdk responses to return all errors for invalid parameters.Example http response
{ "message": "Unable to validate parameters", "validations": [ { "field": "big_number", "detail": "Invalid parameter value according to 'validation' block; Number must be between 500 and 1000" }, { "field": "colors", "detail": "Values must be a valid option; Value \"[\\\"potatoe\\\"]\" is not a valid option, values \"potatoe\" are missing from the options" }, { "field": "intro", "detail": "Invalid parameter value according to 'validation' block; All messages must start with 'Hello' (value \"Goodbye!\" does not match \"^Hello\")" } ] }Cli error