Add message for signing in web3 & documentation for it

README.md

@@ -23,6 +23,9 @@ You will call this on the page where you allow your users to connect to other se
 
 `options` is expecting configuration object. Most often that is going to be: `{ loginStyle: 'popup' }`
 
+##### `freedombase:web3-login`
+The `options` object accepts `linkMessage` key where you can set message for signature.
+
 ### Server side
 #### Accounts.unlinkService(userId, serviceName)
 Given the `userId` and the name of the service (`serviceName`) as it is named in the user document (most often lower case name of the service).

community-services/web3.js

@@ -1,5 +1,10 @@
 import { Meteor } from 'meteor/meteor'
 
+/**
+ *
+ * @param options.linkMessage { String } Message to display on wallet confirmation
+ * @param callback { Function }
+ */
 Meteor.linkWithWeb3 = function (options, callback) {
   if (!Meteor.userId()) {
     throw new Meteor.Error(
@@ -22,12 +27,14 @@ Meteor.linkWithWeb3 = function (options, callback) {
   // Since the flow for Web3 is different we are using a custom flow here.
   const credentialRequestCompleteCallback = (error, address) => {
     if (error.error === 403) {
-      Meteor.call('bozhao:linkAccountsWeb3', address, callback)
+      Meteor.call('bozhao:linkAccountsWeb3', address)
     } else {
       throw error
     }
   }
   Package['freedombase:web3-login'].loginWithWeb3(
+    options?.linkMessage ||
+      `Please verify that you want to link your wallet to ${Meteor.absoluteUrl()}.`,
     credentialRequestCompleteCallback
   )
 }