README
¶
go-http-leaflet-geotag
Go HTTP middleware for the Leaflet.GeotagPhoto plugin.
Important
Documentation is incomplete.
Example
$> go run -mod vendor cmd/example/main.go
2020/04/06 11:28:37 Listening for requests on localhost:8080
An abbreviated code example
This is an abbreviated example of code to demonstrate appending Leaflet.GeotagPhoto related handlers to an http.ServeMux instance and updating a user-defined http.Handler to append Leaflet.GeotagPhoto Javascript and CSS links to its output.
Error handling has been removed for the sake of brevity.
import (
"github.com/sfomuseum/go-http-leaflet-geotag"
"net/http"
)
func main() {
// code...
geotag_opts := geotag.DefaultLeafletGeotagOptions()
mux := http.NewServeMux()
geotag.AppendAssetHandlers(mux)
camera_handler, _ := PageHandler(t, "camera")
camera_handler = geotag.AppendResourcesHandler(camera_handler, geotag_opts)
mux.Handle("/camera/", camera_handler)
// code...
}
For a complete example please consult cmd/example/main.go. The (Javascript) code for the web application itself is contained in the HTML files in the templates/html directory.
Changes
Leaflet.GeotagPhoto.js
This package uses a modified version of the Leaflet.GeotagPhoto.js file that is part of the original Leaflet.GeotagPhoto. It encodes all the static assets (icons and markers) as base64-encoded data URIs rather than linking to the resources themselves. This is to account for situations where an application may be run inside or behind one or more load balancers or proxies and where keeping track of URL rewriting rules becomes a burden.
See also
Documentation
¶
Overview ¶
Package geotag provides HTTP middleware for the Leaflet.GeotagPhoto plugin.
Index ¶
- Variables
- func AppendAssetHandlers(mux *http.ServeMux) error
- func AppendAssetHandlersWithPrefix(mux *http.ServeMux, prefix string) error
- func AppendResourcesHandler(next http.Handler, opts *LeafletGeotagOptions) http.Handler
- func AppendResourcesHandlerWithPrefix(next http.Handler, opts *LeafletGeotagOptions, prefix string) http.Handler
- type LeafletGeotagOptions
Constants ¶
This section is empty.
Variables ¶
var INCLUDE_LEAFLET = true
Functions ¶
func AppendAssetHandlers ¶
func AppendResourcesHandler ¶
func AppendResourcesHandler(next http.Handler, opts *LeafletGeotagOptions) http.Handler
Types ¶
type LeafletGeotagOptions ¶
type LeafletGeotagOptions struct {
JS []string
CSS []string
// AppendJavaScriptAtEOF is a boolean flag to append JavaScript markup at the end of an HTML document
// rather than in the <head> HTML element. Default is false
AppendJavaScriptAtEOF bool
}
func DefaultLeafletGeotagOptions ¶
func DefaultLeafletGeotagOptions() *LeafletGeotagOptions
Source Files
Directories