middleware

Documentation

Index

• func CodeStats(h http.Handler, vec *prometheus.CounterVec, hist *prometheus.HistogramVec) http.Handler
• func CustomValidator(h http.Handler, customValidator ValidationFunc, url opa.OPAURL, pkg string) http.Handler
• func GraphQLCustomValidator(handler http.Handler, customValidator ValidationFunc, url opa.OPAURL, ...) http.Handler
• func Logging(h http.Handler) http.Handler
• func RequestID(h http.Handler) http.Handler
• func StandardValidator(h http.Handler) http.Handler
• type Query
• type StatusRec
  • func (r *StatusRec) WriteHeader(status int)
• type ValidationFunc
• type Variables

Functions

func CodeStats

func CodeStats(h http.Handler, vec *prometheus.CounterVec, hist *prometheus.HistogramVec) http.Handler

CodesStats is a middleware that captures the status code and method of the request for metrics collection with Prometheus

func CustomValidator

func CustomValidator(h http.Handler, customValidator ValidationFunc, url opa.OPAURL, pkg string) http.Handler

CustomValidtor allows for calling a specific OPA instance and defining the package name For example, to call a sidecar instead of the central OPA server and to only call the cw/underwriting package instead of the full cw package.

func GraphQLCustomValidator

func GraphQLCustomValidator(handler http.Handler, customValidator ValidationFunc, url opa.OPAURL, pkg string) http.Handler

GraphQLCustomValidator is like the other CustomValidator function but for GraphQL requests. It passes through data if the query type is an introspection so that schema requests aren't validated by OPA

func Logging

func Logging(h http.Handler) http.Handler

func RequestID

func RequestID(h http.Handler) http.Handler

func StandardValidator

func StandardValidator(h http.Handler) http.Handler

StandardValidator calls the central OPA server with the full cw validation pacakge

Types

type Query

type Query struct {
	OperationName string    `json:"operationName,omitempty"`
	Variables     Variables `json:"variables"`
}

type StatusRec

type StatusRec struct {
	http.ResponseWriter
	Status int
}

StatusRec wraps the http.ResponseWriter to capture the status code

func (*StatusRec) WriteHeader

func (r *StatusRec) WriteHeader(status int)

WriteHeader captures the status code

type ValidationFunc

type ValidationFunc func([]byte) (opa.OPARequest, error)

ValidationFunc is used to map the data in the incoming request to an OPA request. It's on the caller of the service to define the data in the OPA request and what package is called in OPA.

type Variables

type Variables struct {
	Data any `json:"data"`
}