fix: Allow for trailing slash in supabaseUrl (#262)

* Allow for trailing slash in supabaseUrl

* Use for all URLs

Author: adam-beck

src/SupabaseClient.ts

@@ -1,4 +1,5 @@
 import { DEFAULT_HEADERS } from './lib/constants'
+import { stripTrailingSlash } from './lib/helpers'
 import { SupabaseClientOptions } from './lib/types'
 import { SupabaseAuthClient } from './lib/SupabaseAuthClient'
 import { SupabaseQueryBuilder } from './lib/SupabaseQueryBuilder'
@@ -51,6 +52,8 @@ export default class SupabaseClient {
     if (!supabaseUrl) throw new Error('supabaseUrl is required.')
     if (!supabaseKey) throw new Error('supabaseKey is required.')
 
+    supabaseUrl = stripTrailingSlash(supabaseUrl)
+
     const settings = { ...DEFAULT_OPTIONS, ...options }
     this.restUrl = `${supabaseUrl}/rest/v1`
     this.realtimeUrl = `${supabaseUrl}/realtime/v1`.replace('http', 'ws')

src/lib/helpers.ts

@@ -7,3 +7,7 @@ export function uuid() {
     return v.toString(16)
   })
 }
+
+export function stripTrailingSlash(url: string) {
+  return url.replace(/\/$/, "");
+}