leylines-server
v3.2.2
Published
NodeJS server for leylines, consisting of a CORS proxy, proj4 CRS lookup service, ogr2ogr conversion service, and express static server.
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LeylinesJS-Server
This is a basic NodeJS Express server that serves up a (not included) static TerriaJS-based site (such as National Map) with a few additional useful services:
/api/v1/proxy
: a proxy service which applies CORS headers for data providers that lack them. Add URLs to config.json to enable them./api/v1/proj4def
: a proj4 coordinate reference system lookup service./api/v1/convert
: an ogr2ogr server-side conversion service./api/v1/proxyabledomains
: return a JSON of domains the server is willing to proxy for/api/v1/ping
: returns 200 OK./api/v1/share/X-Y
(GET): uses prefix X to resolve key Y against some configured JSON storage provider (Gist and AWS S3 implemented)/api/v1/share
(POST): stores a piece of JSON with a configured storage provider (Gist implemented)/api/v1/serverconfig
: retrieve (safe) information about how the server is configured.- All other requests are served from the
wwwroot
directory you provide on the command line, which defaults to./wwwroot
- If files
[wwwroot]/404.html
and/or[wwwroot]/500.html
exist, they will be served for those HTTP error codes. - Supports very simple authentication via a single username/password included in requests using HTTP basic authentication.
- Proxied services that require HTTP authentication can be proxied by adding credentials to a
proxyauth.json
file. - It can be run in HTTPS mode, although there are better ways of doing that in production.
Generally, you don't want to manually install TerriaJS-Server. It comes installed with TerriaMap (see below).
Stand-alone installation (without serving TerriaMap)
Install
git clone https://github.com/terriajs/terriajs-server
cd terriajs-server
npm install
Configure
Copy serverconfig.json.example
to serverconfig.json
and configure as needed. See comments inside that file. (Comments are allowed; see json5.org).
If you want to proxy authenticated layers, do the same for proxyauth.json.example
.
TerriaJS-Server is run through PM2, a process manager which handles automatic restarting, logging and load balancing. The default configuration is for a development environment with a single process. To use multiple processes, modify the configuration in ecosystem.config.js.
Run
npm start -- [options] [path/to/wwwroot]
terriajs-server.js [options] [path/to/wwwroot]
Options:
--port Port to listen on. [default: 3001] [number]
--public Run a public server that listens on all interfaces.
[boolean] [default: true]
--config-file File containing settings such as allowed domains to proxy. See
serverconfig.json.example
--proxy-auth File containing auth information for proxied domains. See
proxyauth.json.example
--verbose Produce more output and logging. [boolean] [default: false]
--help, -h Show this help. [boolean]
For example, to run with port 3009:
npm start -- --port 3009
To run the server in the foreground, you can do this:
node . [arguments as above]
Tests
- Run
npm test
Installation with TerriaMap
Just install TerriaMap. TerriaJS-Server is installed to node_modules/terriajs-server
, and you can run it manually as node_modules/terriajs-server ./wwwroot
.