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server.js
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server.js
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const Koa = require("koa");
const config = require("config");
const mongoose = require("mongoose");
const cors = require("koa-cors");
const koaSwagger = require("koa2-swagger-ui").koaSwagger;
const yamljs = require("yamljs");
const path = require("path");
const fs = require("fs");
const router = require("./routing/router.js");
const authenticate = require("./authentication/authenticate");
const authorize = require("./authorization/authorization");
const authorizeProjects = require("./authorization/authorization_project");
const dbSchema = require("koa-mongoose-erd-generator");
// create server
const server = new Koa();
// connect to Mongo
mongoose.connect(config.db, { useNewUrlParser: true });
// suppress deprecation warnings
mongoose.set("useFindAndModify", false);
mongoose.set("useCreateIndex", true);
// setup koa middlewares
server.use(cors());
// Serve documentation
server.use(
dbSchema(
"/api/docs/db",
{ modelsPath: __dirname + "/models", nameColor: "#007bff" },
__dirname + "/docs/dbSchema.html"
)
);
const spec = yamljs.load("./docs/docs.yaml");
server.use(
koaSwagger({
routePrefix: "/docs",
title: "Explorer",
swaggerOptions: { spec },
favicon: "/api/docs/favicon.ico",
hideTopbar: true,
})
);
server.use((ctx, next) => {
if (
ctx.path == "/api/docs/favicon.ico" &&
ctx.method == "GET" &&
ctx.method != "Head"
) {
ctx.body = fs.readFileSync(path.join(__dirname, "/docs/favicon.ico"));
ctx.status = 200;
return ctx;
}
return next();
});
// check authentication
server.use(async (ctx, next) => {
await authenticate(ctx, next);
});
// check authorization
server.use(async (ctx, next) => {
await authorize(ctx, next);
});
server.use(async (ctx, next) => {
await authorizeProjects(ctx, next);
});
// catch errors
server.use(async (ctx, next) => {
try {
await next();
} catch (error) {
ctx.body = { error: error.message };
ctx.status = error.status || 500;
}
});
// routing
server.use(router.routes());
// catch all middleware, only land here
// if no other routing rules match
// make sure it is added after everything else
server.use((ctx) => {
ctx.body = { error: "Not Found" };
ctx.status = 404;
});
module.exports = server.listen(3000);