gen-typescript/errors.go.tmpl at master · webrpc/gen-typescript · GitHub

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{{- define "errors" -}}
{{- $webrpcErrors := .WebrpcErrors -}}
{{- $schemaErrors := .SchemaErrors -}}

//
// Errors
//

type WebrpcErrorParams = { name?: string, code?: number, message?: string, status?: number, cause?: string }

export class WebrpcError extends Error {
  code: number
  status: number

  constructor(error: WebrpcErrorParams = {}) {
    super(error.message)
    this.name = error.name || 'WebrpcEndpointError'
    this.code = typeof error.code === 'number' ? error.code : 0
    this.message = error.message || `endpoint error`
    this.status = typeof error.status === 'number' ? error.status : 400
    if (error.cause !== undefined) this.cause = error.cause
    Object.setPrototypeOf(this, WebrpcError.prototype)
  }

  static new(payload: any): WebrpcError {
    return new this({ message: payload.message, code: payload.code, status: payload.status, cause: payload.cause })
  }
}

{{ range $_, $error := $webrpcErrors}}
export class {{$error.Name}}Error extends WebrpcError {
  constructor(error: WebrpcErrorParams = {}) {
    super(error)
    this.name = error.name || '{{$error.Name}}'
    this.code = typeof error.code === 'number' ? error.code : {{$error.Code}}
    this.message = error.message || `{{$error.Message}}`
    this.status = typeof error.status === 'number' ? error.status : {{$error.HTTPStatus}}
    if (error.cause !== undefined) this.cause = error.cause
    Object.setPrototypeOf(this, {{$error.Name}}Error.prototype)
  }
}
{{ end }}

//
// Schema errors
//
{{ range $_, $error := $schemaErrors}}
export class {{$error.Name}}Error extends WebrpcError {
  constructor(error: WebrpcErrorParams = {}) {
    super(error)
    this.name = error.name || '{{$error.Name}}'
    this.code = typeof error.code === 'number' ? error.code : {{$error.Code}}
    this.message = error.message || `{{$error.Message}}`
    this.status = typeof error.status === 'number' ? error.status : {{$error.HTTPStatus}}
    if (error.cause !== undefined) this.cause = error.cause
    Object.setPrototypeOf(this, {{$error.Name}}Error.prototype)
  }
}
{{ end }}

export enum errors {
{{- range $_, $error := $webrpcErrors}}
  {{$error.Name}} = '{{$error.Name}}',
{{- end}}
{{- range $_, $error := $schemaErrors}}
  {{$error.Name}} = '{{$error.Name}}',
{{- end}}
}

export enum WebrpcErrorCodes {
{{- range $_, $error := $webrpcErrors}}
  {{$error.Name}} = {{$error.Code}},
{{- end }}
{{- range $_, $error := $schemaErrors}}
  {{$error.Name}} = {{$error.Code}},
{{- end }}
}

export const webrpcErrorByCode: { [code: number]: any } = {
{{- range $_, $error := $webrpcErrors}}
  [{{$error.Code}}]: {{$error.Name}}Error,
{{- end }}
{{- range $_, $error := $schemaErrors}}
  [{{$error.Code}}]: {{$error.Name}}Error,
{{- end }}
}

{{end}}