Documentation
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Overview ¶
Package core provides utility methods that help convert proxy events into an http.Request and http.ResponseWriter
Package core provides utility methods that help convert proxy events into an http.Request and http.ResponseWriter
Index ¶
- Constants
- func GatewayTimeout() events.APIGatewayResponse
- func GetAPIGatewayContextFromContext(ctx context.Context) (events.APIGatewayRequestContext, bool)
- func GetRuntimeContextFromContext(ctx context.Context) (*functioncontext.FunctionContext, bool)
- func NewLoggedError(format string, a ...interface{}) error
- type ProxyResponseWriter
- type RequestAccessor
- func (r *RequestAccessor) EventToRequest(req events.APIGatewayRequest) (*http.Request, error)
- func (r *RequestAccessor) EventToRequestWithContext(ctx context.Context, req events.APIGatewayRequest) (*http.Request, error)
- func (r *RequestAccessor) GetAPIGatewayContext(req *http.Request) (events.APIGatewayRequestContext, error)
- func (r *RequestAccessor) ProxyEventToHTTPRequest(req events.APIGatewayRequest) (*http.Request, error)
- func (r *RequestAccessor) StripBasePath(basePath string) string
Constants ¶
const APIGwContextHeader = "X-GoLambdaProxy-ApiGw-Context"
APIGwContextHeader is the custom header key used to store the API Gateway context. To access the Context properties use the GetAPIGatewayContext method of the RequestAccessor object.
const CustomHostVariable = "GO_API_HOST"
CustomHostVariable is the name of the environment variable that contains the custom hostname for the request. If this variable is not set the framework reverts to `DefaultServerAddress`. The value for a custom host should include a protocol: http://my-custom.host.com
const DefaultServerAddress = "https://tencent-serverless-go-api.com"
DefaultServerAddress is prepended to the path of each incoming reuqest
Variables ¶
This section is empty.
Functions ¶
func GatewayTimeout ¶
func GatewayTimeout() events.APIGatewayResponse
GatewayTimeout returns a dafault Gateway Timeout (504) response
func GetAPIGatewayContextFromContext ¶
func GetAPIGatewayContextFromContext(ctx context.Context) (events.APIGatewayRequestContext, bool)
GetAPIGatewayContextFromContext retrieve APIGatewayProxyRequestContext from context.Context
func GetRuntimeContextFromContext ¶
func GetRuntimeContextFromContext(ctx context.Context) (*functioncontext.FunctionContext, bool)
GetRuntimeContextFromContext retrieve Lambda Runtime Context from context.Context
func NewLoggedError ¶
NewLoggedError generates a new error and logs it to stdout
Types ¶
type ProxyResponseWriter ¶
type ProxyResponseWriter struct {
// contains filtered or unexported fields
}
ProxyResponseWriter implements http.ResponseWriter and adds the method necessary to return an events.APIGatewayProxyResponse object
func NewProxyResponseWriter ¶
func NewProxyResponseWriter() *ProxyResponseWriter
NewProxyResponseWriter returns a new ProxyResponseWriter object. The object is initialized with an empty map of headers and a status code of -1
func (*ProxyResponseWriter) GetProxyResponse ¶
func (r *ProxyResponseWriter) GetProxyResponse() (events.APIGatewayResponse, error)
GetProxyResponse converts the data passed to the response writer into an events.APIGatewayProxyResponse object. Returns a populated proxy response object. If the response is invalid, for example has no headers or an invalid status code returns an error.
func (*ProxyResponseWriter) Header ¶
func (r *ProxyResponseWriter) Header() http.Header
Header implementation from the http.ResponseWriter interface.
func (*ProxyResponseWriter) Write ¶
func (r *ProxyResponseWriter) Write(body []byte) (int, error)
Write sets the response body in the object. If no status code was set before with the WriteHeader method it sets the status for the response to 200 OK.
func (*ProxyResponseWriter) WriteHeader ¶
func (r *ProxyResponseWriter) WriteHeader(status int)
WriteHeader sets a status code for the response. This method is used for error responses.
type RequestAccessor ¶
type RequestAccessor struct {
// contains filtered or unexported fields
}
RequestAccessor objects give access to custom API Gateway properties in the request.
func (*RequestAccessor) EventToRequest ¶
func (r *RequestAccessor) EventToRequest(req events.APIGatewayRequest) (*http.Request, error)
EventToRequest converts an API Gateway proxy event into an http.Request object. Returns the populated request maintaining headers
func (*RequestAccessor) EventToRequestWithContext ¶
func (r *RequestAccessor) EventToRequestWithContext(ctx context.Context, req events.APIGatewayRequest) (*http.Request, error)
EventToRequestWithContext converts an API Gateway proxy event and context into an http.Request object. Returns the populated http request with lambda context, stage variables and APIGatewayProxyRequestContext as part of its context. Access those using GetAPIGatewayContextFromContext, GetStageVarsFromContext and GetRuntimeContextFromContext functions in this package.
func (*RequestAccessor) GetAPIGatewayContext ¶
func (r *RequestAccessor) GetAPIGatewayContext(req *http.Request) (events.APIGatewayRequestContext, error)
GetAPIGatewayContext extracts the API Gateway context object from a request's custom header. Returns a populated events.APIGatewayProxyRequestContext object from the request.
func (*RequestAccessor) ProxyEventToHTTPRequest ¶
func (r *RequestAccessor) ProxyEventToHTTPRequest(req events.APIGatewayRequest) (*http.Request, error)
ProxyEventToHTTPRequest converts an API Gateway proxy event into a http.Request object. Returns the populated http request with additional two custom headers for the stage variables and API Gateway context. To access these properties use the GetAPIGatewayStageVars and GetAPIGatewayContext method of the RequestAccessor object.
func (*RequestAccessor) StripBasePath ¶
func (r *RequestAccessor) StripBasePath(basePath string) string
StripBasePath instructs the RequestAccessor object that the given base path should be removed from the request path before sending it to the framework for routing. This is used when API Gateway is configured with base path mappings in custom domain names.
Source Files