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Readme notes and code formatting
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‎README.md‎

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# Metabase Node.js interactive embedding sample
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Sample code for the Metabase Node.js Interactive Embedding Quickstart LINK.
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This repo includes sample code referenced in the [quick start guide](https://www.metabase.com/learn/customer-facing-analytics/interactive-embedding-quick-start) for setting up interactive embedding with JWT.
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You'll need a paid version of Metabase up and running. If you're not sure where to start, sign up for Metabase Cloud: Pro. LINK.
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You'll need a Pro or Enterprise version of Metabase up and running. If you're not sure where to start, sign up for [Pro Cloud](https://www.metabase.com/pricing).
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## Set up your Metabase
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@@ -88,20 +88,9 @@ user: [email protected]
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password: foobar
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```
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## Set up groups
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## Set up groups and data sandboxing
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TODO
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Create groups `Customer Acme` and `Customer Fake` and configure permissions so they can access the collection in which the dashboard is located. Also, setup data sandboxing on the Invoices table filtering on `accountId`.
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Under SSO then activate group membership syncing and map `Customer-Acme` and `Customer-Fake` to the groups you've created.
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8. You should be able to sign in with the two users and see the dashboard. If not, check the collection permissions for their respective groups.
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## Set up sandboxing
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TODO
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Both users should be able to see the same dashboard but with different data, beacuse of sandboxing.
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Check out our [quick start guide](https://www.metabase.com/learn/customer-facing-analytics/interactive-embedding-quick-start) to set up interactive embedding with JWT and data sandboxing.
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## Reporting issues
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‎index.js‎

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"use strict";
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const METABASE_SITE_URL =
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process.env.METABASE_SITE_URL || "http://localhost:3000";
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process.env.METABASE_SITE_URL || "http://localhost:3000";
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const METABASE_JWT_SHARED_SECRET =
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process.env.METABASE_JWT_SHARED_SECRET ||
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"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff";
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const mods = 'logo=false&top_nav=false&search=false&new_button=false&side_nav=false&header=false&additional_info=false&breadcrumbs=false&action_buttons=false'
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process.env.METABASE_JWT_SHARED_SECRET ||
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"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff";
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const mods = "logo=false";
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/**
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* Module dependencies.
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*/
@@ -28,173 +30,173 @@ app.set("views", path.join(__dirname, "views"));
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app.use(express.urlencoded({ extended: false }));
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app.use(
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session({
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resave: false, // don't save session if unmodified
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saveUninitialized: false, // don't create session until something stored
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secret: "shhhh, very secret",
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})
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session({
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resave: false, // don't save session if unmodified
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saveUninitialized: false, // don't create session until something stored
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secret: "shhhh, very secret",
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})
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);
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// Session-persisted message middleware
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app.use(function (req, res, next) {
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var err = req.session.error;
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var msg = req.session.success;
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delete req.session.error;
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delete req.session.success;
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res.locals.message = "";
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if (err) res.locals.message = '<p class="msg error">' + err + "</p>";
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if (msg) res.locals.message = '<p class="msg success">' + msg + "</p>";
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next();
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var err = req.session.error;
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var msg = req.session.success;
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delete req.session.error;
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delete req.session.success;
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res.locals.message = "";
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if (err) res.locals.message = '<p class="msg error">' + err + "</p>";
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if (msg) res.locals.message = '<p class="msg success">' + msg + "</p>";
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next();
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});
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// dummy database
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var users = [
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{
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firstName: "Rene",
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lastName: "Mueller",
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email: "[email protected]",
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accountId: 28,
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accountName: "Customer-Acme",
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},
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{
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firstName: "Cecilia",
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lastName: "Stark",
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email: "[email protected]",
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accountId: 132,
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accountName: "Customer-Fake",
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},
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{
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firstName: "Rene",
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lastName: "Mueller",
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email: "[email protected]",
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accountId: 28,
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accountName: "Customer-Acme",
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},
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{
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firstName: "Cecilia",
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lastName: "Stark",
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email: "[email protected]",
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accountId: 132,
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accountName: "Customer-Fake",
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},
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];
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// when you create a user, generate a salt
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// and hash the password ('foobar' is the pass here)
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hash({ password: "foobar" }, function (err, pass, salt, hash) {
74-
if (err) throw err;
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// store the salt & hash in the "db"
76-
users.forEach((element) => {
77-
element.salt = salt;
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element.hash = hash;
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});
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if (err) throw err;
77+
// store the salt & hash in the "db"
78+
users.forEach((element) => {
79+
element.salt = salt;
80+
element.hash = hash;
81+
});
8082
});
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8284
function findUserbyEmail(email) {
83-
var u = users.find((u) => u.email === email);
84-
return u;
85+
var u = users.find((u) => u.email === email);
86+
return u;
8587
}
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8789
// Authenticate using our plain-object database of doom!
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8991
function authenticate(email, pass, fn) {
90-
if (!module.parent) console.log("authenticating %s:%s", email, pass);
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var user = findUserbyEmail(email);
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// query the db for the given email
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if (!user) return fn(null, null);
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// apply the same algorithm to the POSTed password, applying
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// the hash against the pass / salt, if there is a match we
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// found the user
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hash({ password: pass, salt: user.salt }, function (err, pass, salt, hash) {
98-
if (err) return fn(err);
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if (hash === user.hash) return fn(null, user);
100-
fn(null, null);
101-
});
92+
if (!module.parent) console.log("authenticating %s:%s", email, pass);
93+
var user = findUserbyEmail(email);
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// query the db for the given email
95+
if (!user) return fn(null, null);
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// apply the same algorithm to the POSTed password, applying
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// the hash against the pass / salt, if there is a match we
98+
// found the user
99+
hash({ password: pass, salt: user.salt }, function (err, pass, salt, hash) {
100+
if (err) return fn(err);
101+
if (hash === user.hash) return fn(null, user);
102+
fn(null, null);
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});
102104
}
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104106
function restrict(req, res, next) {
105-
if (req.session.user) {
106-
next();
107-
} else {
108-
req.session.returnTo = req.originalUrl;
109-
req.session.error = "Access denied!";
110-
res.redirect("/login");
111-
}
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if (req.session.user) {
108+
next();
109+
} else {
110+
req.session.returnTo = req.originalUrl;
111+
req.session.error = "Access denied!";
112+
res.redirect("/login");
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}
112114
}
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114116
const signUserToken = (user) =>
115-
jwt.sign(
116-
{
117-
email: user.email,
118-
first_name: user.firstName,
119-
last_name: user.lastName,
120-
account_id: user.accountId,
121-
groups: [user.accountName],
122-
exp: Math.round(Date.now() / 1000) + 60 * 10, // 10 minute expiration
123-
},
124-
METABASE_JWT_SHARED_SECRET
125-
);
117+
jwt.sign(
118+
{
119+
email: user.email,
120+
first_name: user.firstName,
121+
last_name: user.lastName,
122+
account_id: user.accountId,
123+
groups: [user.accountName],
124+
exp: Math.round(Date.now() / 1000) + 60 * 10, // 10 minute expiration
125+
},
126+
METABASE_JWT_SHARED_SECRET
127+
);
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127129
app.get("/", function (req, res) {
128-
res.redirect("/analytics");
130+
res.redirect("/analytics");
129131
});
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131133
app.get("/analytics", restrict, function (req, res) {
132-
// replace ID "1" with the ID number in the path of your dashboard in Metabase.
133-
const METABASE_DASHBOARD_PATH = "/dashboard/1";
134-
var iframeUrl = `/sso/metabase?return_to=${METABASE_DASHBOARD_PATH}`;
135-
res.send(
136-
`<iframe src="${iframeUrl}" frameborder="0" width="1280" height="1000" allowtransparency></iframe>`
137-
);
134+
// replace ID "1" with the ID number in the path of your dashboard in Metabase.
135+
const METABASE_DASHBOARD_PATH = "/dashboard/1";
136+
var iframeUrl = `/sso/metabase?return_to=${METABASE_DASHBOARD_PATH}`;
137+
res.send(
138+
`<iframe src="${iframeUrl}" frameborder="0" width="1280" height="1000" allowtransparency></iframe>`
139+
);
138140
});
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140142
app.get("/logout", function (req, res) {
141-
// destroy the user's session to log them out
142-
// will be re-created next request
143-
req.session.destroy(function () {
144-
res.redirect("/");
145-
});
143+
// destroy the user's session to log them out
144+
// will be re-created next request
145+
req.session.destroy(function () {
146+
res.redirect("/");
147+
});
146148
});
147149

148150
app.get("/login", function (req, res) {
149-
res.render("login");
151+
res.render("login");
150152
});
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152154
app.post("/login", function (req, res, next) {
153-
authenticate(req.body.email, req.body.password, function (err, user) {
154-
if (err) return next(err);
155-
if (user) {
156-
// Regenerate session when signing in
157-
// to prevent fixation
158-
var returnTo = req.session.returnTo;
159-
req.session.regenerate(function () {
160-
// Store the user's primary key
161-
// in the session store to be retrieved,
162-
// or in this case the entire user object
163-
req.session.user = user;
164-
req.session.success =
165-
"Authenticated as " +
166-
user.firstName +
167-
"" +
168-
user.lastName +
169-
' click to <a href="/logout">logout</a>. ' +
170-
' click to access <a href="/analytics">analytics</a>';
171-
res.redirect(returnTo || "/");
172-
delete req.session.returnTo;
173-
});
174-
} else {
175-
req.session.error =
176-
"Authentication failed, please check your " +
177-
" email and password." +
178-
' (use "[email protected]" or "[email protected]" and password "foobar")';
179-
res.redirect("/login");
180-
}
181-
});
155+
authenticate(req.body.email, req.body.password, function (err, user) {
156+
if (err) return next(err);
157+
if (user) {
158+
// Regenerate session when signing in
159+
// to prevent fixation
160+
var returnTo = req.session.returnTo;
161+
req.session.regenerate(function () {
162+
// Store the user's primary key
163+
// in the session store to be retrieved,
164+
// or in this case the entire user object
165+
req.session.user = user;
166+
req.session.success =
167+
"Authenticated as " +
168+
user.firstName +
169+
"" +
170+
user.lastName +
171+
' click to <a href="/logout">logout</a>. ' +
172+
' click to access <a href="/analytics">analytics</a>';
173+
res.redirect(returnTo || "/");
174+
delete req.session.returnTo;
175+
});
176+
} else {
177+
req.session.error =
178+
"Authentication failed, please check your " +
179+
" email and password." +
180+
' (use "[email protected]" or "[email protected]" and password "foobar")';
181+
res.redirect("/login");
182+
}
183+
});
182184
});
183185

184186
app.get("/sso/metabase", restrict, (req, res) => {
185-
res.redirect(
186-
url.format({
187-
pathname: `${METABASE_SITE_URL}/auth/sso`,
188-
query: {
189-
jwt: signUserToken(req.session.user),
190-
return_to: `${req.query.return_to || "/"}?${mods}`,
191-
},
192-
})
193-
);
187+
res.redirect(
188+
url.format({
189+
pathname: `${METABASE_SITE_URL}/auth/sso`,
190+
query: {
191+
jwt: signUserToken(req.session.user),
192+
return_to: `${req.query.return_to || "/"}?${mods}`,
193+
},
194+
})
195+
);
194196
});
195197

196198
const PORT = 8080;
197199
if (!module.parent) {
198-
app.listen(PORT);
199-
console.log(`Express started serving on port ${PORT}`);
200+
app.listen(PORT);
201+
console.log(`Express started serving on port ${PORT}`);
200202
}

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