|
| 1 | +// These samples are intended for Web so this import would normally be |
| 2 | +// done in HTML however using modules here is more convenient for |
| 3 | +// ensuring sample correctness offline. |
| 4 | +var firebase = require('firebase'); |
| 5 | +var auth = firebase.auth(); |
| 6 | + |
| 7 | +var MyUserDataRepo = function() {}; |
| 8 | + |
| 9 | +MyUserDataRepo.prototype.merge = function(data1, data2) { |
| 10 | + // TODO(you): How you implement this is specific to your application! |
| 11 | + return { |
| 12 | + ...data1, |
| 13 | + ...data2, |
| 14 | + } |
| 15 | +} |
| 16 | + |
| 17 | +MyUserDataRepo.prototype.set = function(user, data) { |
| 18 | + // TODO(you): How you implement this is specific to your application! |
| 19 | +} |
| 20 | + |
| 21 | +MyUserDataRepo.prototype.delete = function(user) { |
| 22 | + // TODO(you): How you implement this is specific to your application! |
| 23 | +} |
| 24 | + |
| 25 | +MyUserDataRepo.prototype.get = function(user) { |
| 26 | + // TODO(you): How you implement this is specific to your application! |
| 27 | + return {}; |
| 28 | +} |
| 29 | + |
| 30 | +function getProviders() { |
| 31 | + // [START auth_get_providers] |
| 32 | + var googleProvider = new firebase.auth.GoogleAuthProvider(); |
| 33 | + var facebookProvider = new firebase.auth.FacebookAuthProvider(); |
| 34 | + var twitterProvider = new firebase.auth.TwitterAuthProvider(); |
| 35 | + var githubProvider = new firebase.auth.GithubAuthProvider(); |
| 36 | + // [END auth_get_providers] |
| 37 | +} |
| 38 | + |
| 39 | +function linkWithPopup() { |
| 40 | + var provider = new firebase.auth.GoogleAuthProvider(); |
| 41 | + |
| 42 | + // [START auth_link_with_popup] |
| 43 | + auth.currentUser.linkWithPopup(provider).then(function(result) { |
| 44 | + // Accounts successfully linked. |
| 45 | + var credential = result.credential; |
| 46 | + var user = result.user; |
| 47 | + // ... |
| 48 | + }).catch(function(error) { |
| 49 | + // Handle Errors here. |
| 50 | + // ... |
| 51 | + }); |
| 52 | + // [END auth_link_with_popup] |
| 53 | +} |
| 54 | + |
| 55 | +function linkWithRedirect() { |
| 56 | + var provider = new firebase.auth.GoogleAuthProvider(); |
| 57 | + |
| 58 | + // [START auth_link_with_redirect] |
| 59 | + auth.currentUser.linkWithRedirect(provider) |
| 60 | + .then(/* ... */) |
| 61 | + .catch(/* ... */); |
| 62 | + // [END auth_link_with_redirect] |
| 63 | + |
| 64 | + // [START auth_get_redirect_result] |
| 65 | + auth.getRedirectResult().then(function(result) { |
| 66 | + if (result.credential) { |
| 67 | + // Accounts successfully linked. |
| 68 | + var credential = result.credential; |
| 69 | + var user = result.user; |
| 70 | + // ... |
| 71 | + } |
| 72 | + }).catch(function(error) { |
| 73 | + // Handle Errors here. |
| 74 | + // ... |
| 75 | + }); |
| 76 | + // [END auth_get_redirect_result] |
| 77 | +} |
| 78 | + |
| 79 | +// For one, the user variable in the line: |
| 80 | +// return user.delete().then(function() { |
| 81 | +// does not have a .delete function, it would need to be user.user.delete() |
| 82 | +// & in this example they suggest: |
| 83 | +// // Merge prevUser and currentUser data stored in Firebase |
| 84 | +// which in this auth context (& assuming basic security rules enabled) would mean you would only have access to currentUser ’s storage, |
| 85 | +// but then they delete the current user & link the credential to the previous user. In otherwords you would only be able to merge the previous user’s |
| 86 | +// data into the current user’s storage, however the current user is deleted & no longer accessible |
| 87 | +// So I’d just like a sanity check here that this example is indeed a flawed approach! |
| 88 | + |
| 89 | + |
| 90 | +function mergeAccounts() { |
| 91 | + // This is just a dummy variable for sample purposes, the other |
| 92 | + // snippets demonstrate how to get a real credential. |
| 93 | + var newCredential = new firebase.auth.AuthCredential(); |
| 94 | + |
| 95 | + // [START auth_merge_accounts] |
| 96 | + // The implementation of how you store your user data depends on your application |
| 97 | + var repo = new MyUserDataRepo(); |
| 98 | + |
| 99 | + // Get reference to the currently signed-in user |
| 100 | + var prevUser = auth.currentUser; |
| 101 | + |
| 102 | + // Get the data which you will want to merge. This should be done now |
| 103 | + // while the app is still signed in as this user. |
| 104 | + var prevUserData = repo.get(prevUser); |
| 105 | + |
| 106 | + // Delete the user's data now, we will restore it if the merge fails |
| 107 | + repo.delete(prevUser); |
| 108 | + |
| 109 | + // Sign in user with the account you want to link to |
| 110 | + auth.signInWithCredential(newCredential).then(function(result) { |
| 111 | + console.log("Sign In Success", result); |
| 112 | + var currentUser = result.user; |
| 113 | + var currentUserData = repo.get(currentUser); |
| 114 | + |
| 115 | + // Merge prevUser and currentUser data stored in Firebase. |
| 116 | + // Note: How you handle this is specific to your application |
| 117 | + var mergedData = repo.merge(prevUserData, currentUserData); |
| 118 | + |
| 119 | + return prevUser.linkWithCredential(result.credential) |
| 120 | + .then(function(linkResult) { |
| 121 | + // Sign in with the newly linked credential |
| 122 | + return auth.signInWithCredential(linkResult.credential); |
| 123 | + }) |
| 124 | + .then(function(signInResult) { |
| 125 | + // Save the merged data to the new user |
| 126 | + repo.set(signInResult.user, mergedData); |
| 127 | + }); |
| 128 | + }).catch(function(error) { |
| 129 | + // If there are errors we want to undo the data merge/deletion |
| 130 | + console.log("Sign In Error", error); |
| 131 | + repo.set(prevUser, prevUserData); |
| 132 | + repo.set(currentUser, currentUserData); |
| 133 | + }); |
| 134 | + // [END auth_merge_accounts] |
| 135 | +} |
| 136 | + |
0 commit comments