Feature: Implement funding rates, futures and coin margin (exchange API coverage) (#530)

* ALMOST THERE

* more api wips

* more api thingz

* testing n more api wipz

* more apiz

* more wips

* what is goin on

* more wips

* whip n testing

* testing

* testing

no keys

* remove log

* kraken is broken

ugh

* still broken

* fixing auth funcs + usdtm api docs

* wip

* api stuffs

* whip

* more wips

* whip

* more wip

* api wip n testing

* wip

* wip

* unsaved

* wip n testing

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* whip

* wrapper authenticated functions

* adding asset type and fixing dependencies

* wip

* binance auth wrapper start

* wrapper functionality

* wip

* wip

* wip

* wrapper cancel functions

* order submission for wrappers

* wip

* more error fixing and nits

* websocket beginning n error fix

* wip

* WOW

* glorious n shazzy nits

* useless nits

* wip

* fixing things

* merge stuffs

* crapveyor

* crapveyor rebuild

* probably broke more things than he fixed

* rm lns n other thangs

* hope

* please

* stop it

* done

* ofcourse

* rm vb

* fix lbank

* appveyor please

* float lev

* DONT ASK RYAN FOR HELP EVER

* wip

* wip

* endpoint upgrades continued

* path upgrade

* NeeeNeeeNeeeNeeeNING

* fix stuffs

* fixing time issue

* fixing broken funcs

* glorious nits

* shaz changes

* fixing errors for fundmon

* more error fixing for fundmon

* test running past 30s

* basic changes

* THX AGAIN SHAZBERT

* path system upgrade

* config upgrade

* unsaved stuffs

* broken wip config upgrade

* path system upgrade contd.

* path system upgrade contd

* path upgrade ready for review

* testing verbose removed

* linter stuffs

* appveyor stuffs

* appveyor stuff

* fixed?

* bugfix

* wip

* broken stuff

* fix test

* wierd hack fix

* appveyor pls stop

* error found

* more useless nits

* bitmex err

* broken wip

* broken wip path upgrade change to uint32

* changed url lookups to uint

* WOW

* ready4review

* config fixed HOPEFULLY

* config fix and glorious changes

* efficient way of getting orders and open orders

* binance wrapper logic fixing

* testing, adding tests and fixing lot of errrrrs

* merge master

* appveyor stuffs

* appveyor stuffs

* fmt

* test

* octalLiteral issue fix?

* octalLiteral fix?

* rm vb

* prnt ln to restart

* adding testz

* test fixzzz

* READY FOR REVIEW

* Actually ready now

* FORMATTING

* addressing shazzy n glorious nits

* crapveyor

* rm vb

* small change

* fixing err

* shazbert nits

* review changes

* requested changes

* more requested changes

* noo

* last nit fixes

* restart appveyor

* improving test cov

* Update .golangci.yml

* shazbert changes

* moving pair formatting

* format pair update wip

* path upgrade complete

* error fix

* appveyor linters

* more linters

* remove testexch

* more formatting changes

* changes

* shazbert changes

* checking older requested changes to ensure completion

* wip

* fixing broken code

* error fix

* all fixed

* additional changes

* more changes

* remove commented code

* ftx margin api

* appveyor fixes

* more appveyor issues + test addition

* more appveyor issues + test addition

* remove unnecessary

* testing

* testing, fixing okex api, error fix

* git merge fix

* go sum

* glorious changes and error fix

* rm vb

* more glorious changes and go mod tidy

* fixed now

* okex testing upgrade

* old config migration and batch fetching fix

* added test

* glorious requested changes WIP

* tested and fixed

* go fmted

* go fmt and test fix

* additional funcs and tests for fundingRates

* OKEX tested and fixed

* appveyor fixes

* ineff assign

* 1 glorious change

* error fix

* typo

* shazbert changes

* glorious code changes and path fixing huobi WIP

* adding assetType to accountinfo functions

* fixing panic

* panic fix and updating account info wrappers WIP

* updateaccountinfo updated

* testing WIP binance USDT n Coin Margined and Kraken Futures

* auth functions tested and fixed

* added test

* config reverted

* shazbert and glorious changes

* shazbert and glorious changes

* latest changes and portfolio update

* go fmt change:

* remove commented codes

* improved error checking

* index out of range fix

* rm ln

* critical nit

* glorious latest changes

* appveyor changes

* shazbert change

* easier readability

* latest glorious changes

* shadow dec

* assetstore updated

* last change

* another last change

* merge changes

* go mod tidy

* thrasher requested changes wip

* improving struct layouts

* appveyor go fmt

* remove unnecessary code

* shazbert changes

* small change

* oopsie

* tidy

* configtest reverted

* error fix

* oopsie

* for what

* test patch fix

* insecurities

* fixing tests

* fix config

exchanges/gemini/gemini_wrapper.go

@@ -106,10 +106,14 @@ func (g *Gemini) SetDefaults() {
 	g.Requester = request.New(g.Name,
 		common.NewHTTPClientWithTimeout(exchange.DefaultHTTPTimeout),
 		request.WithLimiter(SetRateLimit()))
-
-	g.API.Endpoints.URLDefault = geminiAPIURL
-	g.API.Endpoints.URL = g.API.Endpoints.URLDefault
-	g.API.Endpoints.WebsocketURL = geminiWebsocketEndpoint
+	g.API.Endpoints = g.NewEndpoints()
+	err = g.API.Endpoints.SetDefaultEndpoints(map[exchange.URL]string{
+		exchange.RestSpot:      geminiAPIURL,
+		exchange.WebsocketSpot: geminiWebsocketEndpoint,
+	})
+	if err != nil {
+		log.Errorln(log.ExchangeSys, err)
+	}
 	g.Websocket = stream.New()
 	g.WebsocketResponseMaxLimit = exchange.DefaultWebsocketResponseMaxLimit
 	g.WebsocketResponseCheckTimeout = exchange.DefaultWebsocketResponseCheckTimeout
@@ -129,7 +133,15 @@ func (g *Gemini) Setup(exch *config.ExchangeConfig) error {
 	}
 
 	if exch.UseSandbox {
-		g.API.Endpoints.URL = geminiSandboxAPIURL
+		err = g.API.Endpoints.SetRunning(exchange.RestSpot.String(), geminiSandboxAPIURL)
+		if err != nil {
+			log.Error(log.ExchangeSys, err)
+		}
+	}
+
+	wsRunningURL, err := g.API.Endpoints.GetURL(exchange.WebsocketSpot)
+	if err != nil {
+		return err
 	}
 
 	return g.Websocket.Setup(&stream.WebsocketSetup{
@@ -139,7 +151,7 @@ func (g *Gemini) Setup(exch *config.ExchangeConfig) error {
 		WebsocketTimeout:                 exch.WebsocketTrafficTimeout,
 		DefaultURL:                       geminiWebsocketEndpoint,
 		ExchangeName:                     exch.Name,
-		RunningURL:                       exch.API.Endpoints.WebsocketURL,
+		RunningURL:                       wsRunningURL,
 		Connector:                        g.WsConnect,
 		Features:                         &g.Features.Supports.WebsocketCapabilities,
 		OrderbookBufferLimit:             exch.OrderbookConfig.WebsocketBufferLimit,
@@ -196,7 +208,7 @@ func (g *Gemini) UpdateTradablePairs(forceUpdate bool) error {
 
 // UpdateAccountInfo Retrieves balances for all enabled currencies for the
 // Gemini exchange
-func (g *Gemini) UpdateAccountInfo() (account.Holdings, error) {
+func (g *Gemini) UpdateAccountInfo(assetType asset.Item) (account.Holdings, error) {
 	var response account.Holdings
 	response.Exchange = g.Name
 	accountBalance, err := g.GetBalances()
@@ -226,10 +238,10 @@ func (g *Gemini) UpdateAccountInfo() (account.Holdings, error) {
 }
 
 // FetchAccountInfo retrieves balances for all enabled currencies
-func (g *Gemini) FetchAccountInfo() (account.Holdings, error) {
-	acc, err := account.GetHoldings(g.Name)
+func (g *Gemini) FetchAccountInfo(assetType asset.Item) (account.Holdings, error) {
+	acc, err := account.GetHoldings(g.Name, assetType)
 	if err != nil {
-		return g.UpdateAccountInfo()
+		return g.UpdateAccountInfo(assetType)
 	}
 
 	return acc, nil
@@ -655,8 +667,8 @@ func (g *Gemini) GetOrderHistory(req *order.GetOrdersRequest) ([]order.Detail, e
 
 // ValidateCredentials validates current credentials used for wrapper
 // functionality
-func (g *Gemini) ValidateCredentials() error {
-	_, err := g.UpdateAccountInfo()
+func (g *Gemini) ValidateCredentials(assetType asset.Item) error {
+	_, err := g.UpdateAccountInfo(assetType)
 	return g.CheckTransientError(err)
 }