/
compose.js
142 lines (102 loc) · 3 KB
/
compose.js
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var ctor = () => (...fns) => (args) =>
fns.reduce((p, f) => p.then(f), Promise.resolve(args))
var compose = ctor()
var Request = {
defaults: require('./request/defaults'),
url: require('./request/url'),
proxy: require('./request/proxy'),
qs: require('./request/qs'),
form: require('./request/form'),
json: require('./request/json'),
body: require('./request/body'),
auth: require('./request/auth'),
length: require('./request/length'),
send: require('./request/send'),
}
var Response = {
buffer: require('./response/buffer'),
gzip: require('./response/gzip'),
string: require('./response/string'),
parse: require('./response/parse'),
status: require('./response/status'),
redirect: require('./response/redirect'),
}
var request = (Request) => (args) => compose(
Request.defaults(args),
(() =>
args.url ? Request.url(args.url) : ({options}) => ({options})
)(),
(() =>
args.proxy ? Request.proxy(args.proxy) : ({options}) => ({options})
)(),
(() =>
args.qs ? Request.qs(args.qs, args.redirect) : ({options}) => ({options})
)(),
(() =>
args.cookie ? Request.cookie(args.cookie) : ({options}) => ({options})
)(),
(() =>
args.form ? Request.form(args.form) :
args.json ? Request.json(args.json) :
args.multipart ? Request.multipart(args.multipart) :
args.body ? Request.body(args.body) :
({options}) => ({options})
)(),
(() =>
args.auth ? Request.auth(args.auth) :
args.oauth ? Request.oauth(args.oauth) :
({options, body}) => ({options, body})
)(),
(() => ({options, body}) =>
body ? Request.length()({options, body}) : {options}
)(),
Request.send(),
)()
var client = (Request, Response) => (args) => compose(
_ => request(Request)(args),
(() =>
args.cookie ? Response.cookie(args.cookie) :
({options, res}) => ({options, res})
)(),
Response.buffer(),
Response.gzip(),
Response.string(args.encoding),
Response.parse(),
Response.status(),
Response.redirect(args, client(Request, Response)),
)()
var buffer = (Request, Response) => (args) => compose(
_ => request(Request)(args),
(() =>
args.cookie ? Response.cookie(args.cookie) :
({options, res}) => ({options, res})
)(),
Response.buffer(),
Response.gzip(),
Response.status(),
Response.redirect(args, buffer(Request, Response)),
)()
var stream = (Request, Response) => (args) => compose(
_ => request(Request)(args),
(() =>
args.cookie ? Response.cookie(args.cookie) :
({options, res}) => ({options, res})
)(),
Response.status(),
// TODO: should buffer the read chunks and re-write them
// Response.redirect(args, stream),
)()
var extend = (mw) => ((
req = Object.assign({}, Request, mw.Request),
res = Object.assign({}, Response, mw.Response),
) =>
Object.assign(ctor(), {
Request: req,
Response: res,
client: client(req, res),
buffer: buffer(req, res),
stream: stream(req, res),
extend,
})
)()
module.exports = extend({Request, Response})