You can easily create connection via the Peaka API. For example, here’s how to create a connection to Stripe, a very popular payment platform:

curl --request POST \
  --url https://partner.peaka.studio/api/v1/connections/{projectId} \
  --header 'Authorization: Bearer <your_peaka_key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "<name_of_your_connection>",
  "type": "stripe",
  "credential": {
    "token": "<stripeToken>"
  }
}'

Passing the Stripe token to the Peaka platform is sufficient. Not all 3rd party platforms support a simple token (or user:password) based authentication. For example, HubSpot - a very popular CRM platform - or Google Sheets use OAuth2 based authentication (see: https://en.wikipedia.org/wiki/OAuth or https://auth0.com/intro-to-iam/what-is-oauth-2). The most common OAuth2 grant type is Authorization Code. Authorization Code flow requires some user interaction. After various steps, the platform you are using gives you a pair of token: an Access Token and a Refresh Token. Peaka should know these tokens in order to query data of the platform. Peaka has already implemented various 3rd party platforms using OAuth2. If you are using Peaka

directly (https://peaka.studio/),
in an Embedded UI (https://docs.peaka.com/how-to-guides/how-to-embed-peaka-to-my-app),

you will get connected to those platforms. For those who want to create connection based on OAuth2 via Peaka Rest Api, there are two options:

Use your OAuth implementation, provide tokens to Peaka
Use Peaka OAuth mechanism

1. Use Your OAuth Implementation

Partners may have an already implemented OAuth process and OAuth apps. In order to use these apps, Peaka needs clientId, clientSecret, refreshToken and accessToken. Since partner makes all OAuth flows, it is sufficient to pass these info to Peaka. This is the simplest integration way of OAuth. Upon getting refresh token and access token from the OAuth Provider (e.g. Google), the Partner will make “create connection” request. create connection request

A typical request example will be

curl --request POST \
  --url https://partner.peaka.studio/api/v1/connections/{projectId} \
  --header 'Authorization: Bearer <your_peaka_key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "<name_of_your_connection>",
  "type": "hubspot",
  "credential": {
    "clientId": "<client_id_for_hubspot_app>",
    "clientSecret": "<client_secret_for_hubspot_app>",
    "accessToken": "<access_token>",
    "refreshToken": "<refresh_token>"
  }
}'

And sample response returning connection id will be:

200

{
  "id": "6243f42a-42d0-4821-a90f-763cda6cda50",
  "name": "<name_of_your_connection>",
  "type": "hubspot"
}

Partners choose this way integration because they have already have Oauth processes or they want to do OAuth processes by themselves.

2. Use Peaka OAuth Mechanism

OAuth flows are a bit complex to implement for some partners. Defining and registering appropriate OAuth apps can also be complex and time consuming (e.g. Some platforms may have longer review process). Peaka does the complex part and informs you when an OAuth flow has completed. Since everything happens in the user browser, such integration is more complex than the previous. Whether you will be using Peaka OAuth App or your own OAuth app, this mechanism can be implemented in two ways:

2.a. Use Peaka OAuth App

When you choose to use Peaka OAuth app for some Platform (e.g. Google Analytics), OAuth flow will end at Peaka site and Peaka will inform you after that. Using Peaka OAuth app has some advantages and disadvantages. Also in some cases, you should use your own OAuth app. Advantages:

Some platforms enable public creation of an OAuth app, some requires developer accounts, and some requires a partnership program. Also they may have review process. Peaka has completed review process of the Platform you are using. So you don’t need to wait for your own.

Disadvantages:

In OAuth flow, a consent screen will be shown to your user. In that screen, Peaka’s branding and logo will be shown. If you need to show your logo and branding, you should choose to create your own OAuth app and implement the next option.
Platforms may have strict rate limits. To avoid rate limits, you may consider creating your own oauth app.

Your user clicks a button in your application in order to create connection. e.g. Google Analytics connection. The response of this http request will be done in Step 4.
Your server should make a create connection request

curl --request POST \
  --url https://partner.peaka.studio/api/v1/connections/{projectId} \
  --header 'Authorization: Bearer <your_peaka_api_key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "exampleOauthConnection",
  "type": "google_analytics",
  "connectionCallback": "<partner_callback_url>"
}'

Here partner_callback_url is the full url of your server endpoint responsible to complete creation process. We will use partner_callback_url at Step 10 and 11.

As a response to the request in Step 2

200
{
	"id" : "<connection_id>",
	"name": "<name_of_your_connection>",
  "type": "google_analytics"
  "url": "<platform_consent_url>"
}

Peaka will return the url of the consent screen of the Platform.

Your server should return redirect:<platform_consent_url> to the browser as response to the request initiated at Step 1. Also it is a good practice to store connection_idand the location where the user has started the connection.

An example for Step 1-4 can be given in Node.js as follows: (Note that it is not a complete working example)

const express = require("express");
const axios = require("axios");
const app = express();

app.use(express.json());

// Replace with your actual Peaka API key and project ID
const PEAKA_API_KEY = "<your_peaka_api_key>";
const PROJECT_ID = "<your_project_id>";

// Your server endpoint responsible for completing the connection process
const partnerCallbackUrl = "<partner_callback_url>"; // e.g., "https://yourserver.com/complete-connection"

app.post("/create-connection", async (req, res) => {
  try {
    // Step 2: Make the create connection request
    const response = await axios.post(
      `https://partner.peaka.studio/api/v1/connections/${PROJECT_ID}`,
      {
        name: "exampleOauthConnection",
        type: "google_analytics",
        connectionCallback: partnerCallbackUrl,
      },
      {
        headers: {
          Authorization: `Bearer ${PEAKA_API_KEY}`,
          "Content-Type": "application/json",
        },
      }
    );

    // Step 3: Extract connection data from the response
    const { id, name, type, url } = response.data;

    // Store connection ID and where the user started the connection (Optional, e.g., in a database)
    // For example: storeConnection(id, name, type, req.originalUrl);

    // Step 4: Redirect the user to the consent URL
    res.redirect(url); // Redirect the user to the consent screen
  } catch (error) {
    console.error("Error creating connection:", error);
    res.status(500).send("Error creating connection");
  }
});

// Endpoint to complete the connection process (Step 10 and 11)
app.get("/complete-connection", async (req, res) => {
  try {
    // Handle the final steps of completing the OAuth connection
    // This would typically involve processing the authorization code, fetching data, etc.
    console.log("Connection completed successfully!");
    res.send("Connection completed successfully!");
  } catch (error) {
    console.error("Error completing connection:", error);
    res.status(500).send("Error completing connection");
  }
});

// Start the Express server
const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`Server running on port ${PORT}`);
});

Browser will automatically redirect to Platform Consent Screen.
Browser shows the Consent Screen.
User will approve the consents.
Platform will return the Peaka OAuth app’s redirect (oauth2 callback of Peaka) redirect:https://peaka.studio/oauth2/callback
Browser will be redirected to Peaka Callback.
Peaka will return a redirection to your partner_callback_url:

<partnerCallback >?connectionId=<connectionId >?status=< success or fail >

The browser will be redirected to your <partner_callback_url> with query parameters connectionId and status. If status is success, the connection has been created successfully. Otherwise, if status is fail, it indicates a problem, such as a platform error or a timeout in the flow.

A typical implementation of Step 10 and Step 11 in Node.js: (Note that it is not a complete working example)

const express = require("express");
const axios = require("axios");

const app = express();
const PORT = 3000;

app.get("/oauth2/mycallback", async (req, res) => {
  try {
    const { connectionId, status } = req.query;

    if (!connectionId) {
      return res.redirect("/error?message=Connection could not be created");
    }

    // Find the URL using the connectionId (this could involve querying your session, in-memory map or database)
    const redirectUrl = getRedirectUrlByConnectionId(connectionId);

    if (!redirectUrl) {
      return res.redirect("/error?message=Redirect URL not found");
    }

    // Redirect to the found URL
    res.redirect(redirectUrl);
  } catch (error) {
    console.error("Error handling callback:", error);
    // Redirect to an error page with a message
    res.redirect("/error?message=Failed to process callback");
  }
});

// Dummy function to simulate finding a URL by connectionId
function getRedirectUrlByConnectionId(connectionId) {
  // Replace with actual logic to find the URL by connectionId
  if (connectionId === "someConnectionId") {
    return "https://yourdomain.com/this_is_where_you_begin";
  }
  return null;
}

app.listen(PORT, () => {
  console.log(`OAuth2 callback endpoint running on http://localhost:${PORT}`);
});

2. b. Use Your Own OAuth App

You should create your own app,

if you need to use your own branding and logo
if you need better rate limits for the Platform API
if Peaka supports connection for the Platform but does not have a global app.
- Here, global app means that the Platform allows Peaka use data of other users. Sometimes the platforms allow only non-global apps or there are long review processes for the global apps.

There are a couple things to consider while your are creating your OAuth app. The OAuth app will ask for redirect url (or callback url). Redirect Url is the endpoint where the browser is redirected at the end of OAuth flow. According to the given url, the integration process will differentiate.

You can use Peaka’s own callback url.

https://peaka.studio/oauth2/callback

In that case, it is necessary and sufficient to implement steps described in 2.a. Use Peaka Oauth App with a minor diff. You should give the client id and client secret parameters in the request. Step 2 will be:

curl --request POST \
  --url https://partner.peaka.studio/api/v1/connections/{projectId} \
  --header 'Authorization: Bearer <your_peaka_api_key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "exampleOauthConnection",
  "type": "google_analytics",
  "connectionCallback": "<partner_callback_url>",
  "credential": {
	  "clientId": "<client_id_for_your_google_app>",
	  "clientSecret": "<client_secret_for_your_google_app>"
  }
}'

You can use your own redirect url and then redirect it to the Peaka’s callback.

If you do the appropriate redirection, the implementation steps will be same as the above case. In that case, the user browser will momentarily redirected to Peaka’s callback and then it will be redirected to partner_callback_url e.g. You give the OAuth app redirect_url as https://yourdomain.com/oauth2/mycallback Then you should redirect the request coming to your redirect_url to https://peaka.studio/oauth2/callback You can do this redirection in your reverse proxy server (Apache, Nginx, Traefik, etc.) or in your application server (Express in Node.js, Spring in Java, etc.). Apache (HTTPD)

<VirtualHost *:80>
    ServerName yourdomain.com

    RewriteEngine On
    RewriteCond %{QUERY_STRING} (.*)
    RewriteRule ^/oauth2/mycallback$ https://peaka.studio/oauth2/callback?%1 [R=307,L]
</VirtualHost>

Nginx

server {
    listen 80;
    server_name yourdomain.com;

    location /oauth2/mycallback {
        # Redirect to Peaka callback with all query parameters
        return 307 https://peaka.studio/oauth2/callback?$query_string;
    }
}

Traefik

http:
  routers:
    redirectRouter:
      rule: "Path(`/oauth2/mycallback`)"
      service: dummyService
      middlewares:
        - redirectToPeaka

  middlewares:
    redirectToPeaka:
      redirectRegex:
        regex: "^.*"
        replacement: "https://peaka.studio/oauth2/callback?${query}"
        permanent: false

Node.js

const express = require("express");
const app = express();

app.get("/oauth2/mycallback", (req, res) => {
  // Peaka callback URL
  const peakaCallbackUrl = "https://peaka.studio/oauth2/callback";

  const queryParams = req.url.split("?")[1];
  const redirectUrl = queryParams
    ? `${peakaCallbackUrl}?${queryParams}`
    : peakaCallbackUrl;

  res.redirect(307, redirectUrl);
});

app.listen(3000, () => {
  console.log("Server running at http://localhost:3000");
});

You can use your own callback url and the user’s browser will never redirected to Peaka’s domain.

This approach requires a different implementation compared to the previous cases when integrating your OAuth app. create connection request

Your user clicks a button in your application in order to create connection. e.g. Google Analytics connection. The response of this http request will be done in Step 4.
Your server should make a create connection request

curl --request POST \
  --url https://partner.peaka.studio/api/v1/connections/{projectId} \
  --header 'Authorization: Bearer <your_peaka_api_key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "exampleOauthConnection",
  "type": "google_analytics",
  "credential": {
	  "clientId": "<client_id_for_your_google_app>",
	  "clientSecret": "<client_secret_for_your_google_app>",
	  "redirectUrl": "<redirect_url>"
  }
}'

Here redirect_url under “credential” object should be the callback (or redirect) url you give to the Platform OAuth app.

As a response to the request in (2)

200
{
	"id" : "<connection_id>",
	"name": "<name_of_your_connection>",
  "type": "google_analytics"
  "url": "<platform_consent_url>"
}

Peaka will return the url of the consent screen of the Platform.

Your server should return redirect:<platform_consent_url> to the browser as response to the request initiated at Step 1. Also it is a good practice to store connection_idand the location where the user has started the connection.

An example for Step 1-4 can be given in Node.js as follows: (Note that it is not a complete working example)

const express = require("express");
const axios = require("axios");
const app = express();

// Replace with your actual Peaka API key and project ID
const PEAKA_API_KEY = "<your_peaka_api_key>";
const PROJECT_ID = "<your_project_id>";

app.use(express.json());

// Endpoint to initiate the connection creation process
app.post("/create-connection", async (req, res) => {
  try {
    // Step 2: Make the create connection request
    const response = await axios.post(
      `https://partner.peaka.studio/api/v1/connections/${PROJECT_ID}`,
      {
        name: "exampleOauthConnection",
        type: "google_analytics",
        credential: {
          clientId: "<client_id_for_your_google_app>",
          clientSecret: "<client_secret_for_your_google_app>",
          redirectUrl: "<redirect_url>",
        },
      },
      {
        headers: {
          Authorization: `Bearer ${PEAKA_API_KEY}`,
          "Content-Type": "application/json",
        },
      }
    );

    // Step 3: Handle the response and extract the consent URL
    const { id, url } = response.data;

    // Optionally, you can store the connection ID and other relevant data in a database

    // Step 4: Return the redirect response with the consent URL
    res.redirect(url); // This will redirect the user to the consent screen
  } catch (error) {
    console.error("Error creating connection:", error);
    res.status(500).send("Error creating connection");
  }
});

// Start the Express server
const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`Server running on port ${PORT}`);
});

Browser will automatically redirect to Platform Consent Screen
Browser shows the Consent Screen.
User will approve the consents.
Platform will return the your OAuth app’s redirect url - you give in Step 2 - with some query parameters.
Browser will be redirected to your callback with some query parameters.
A typical redirect_url will be

https://yourdomain.com/oauth2/mycallback?state=2def...&code=2asd...&...

You should pass all the query parameters to Peaka as follows:

curl --request POST \
  --url https://partner.peaka.studio/api/v1/connections/{projectId}/oauth2 \
  --header 'Authorization: Bearer <your_peaka_api_key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "queryParameters": "state=2ad...&code=2asd...&other_query_params=...."
}'

Response of Step 10 will be

200
{
  "id" : "<connection_id>"
}

A typical implementation of Step 10 and Step 11 in Node.js: (Note that it is not a complete working example)

const express = require("express");
const axios = require("axios");

const app = express();
const PORT = 3000;

// Replace with your Peaka API details
const PEAKE_API_URL =
  "https://partner.peaka.studio/api/v1/connections/{projectId}/oauth2";
const PEAKE_API_KEY = "<your_peaka_api_key>";

app.get("/oauth2/mycallback", async (req, res) => {
  try {
    // Extract all query parameters from the request
    const queryParams = new URLSearchParams(req.query).toString();

    if (!queryParams) {
      return res.redirect("/error?message=Missing authorization code");
    }

    // Post query parameters to Peaka
    const peakaResponse = await axios.post(
      PEAKE_API_URL,
      { queryParameters: queryParams },
      {
        headers: {
          Authorization: `Bearer ${PEAKE_API_KEY}`,
          "Content-Type": "application/json",
        },
      }
    );

    // Extract the connectionId from Peaka's response
    const connectionId = peakaResponse.data.id;

    if (!connectionId) {
      return res.redirect("/error?message=Connection could not be created");
    }

    // Find the URL using the connectionId (this could involve querying your in memory map or database)
    const redirectUrl = getRedirectUrlByConnectionId(connectionId);

    if (!redirectUrl) {
      return res.redirect("/error?message=Redirect URL not found");
    }

    // Redirect to the found URL
    res.redirect(redirectUrl);
  } catch (error) {
    console.error("Error posting to Peaka:", error);
    // Redirect to an error page with a message
    res.redirect("/error?message=Failed to process callback");
  }
});

// Dummy function to simulate finding a URL by connectionId
function getRedirectUrlByConnectionId(connectionId) {
  // Replace with actual logic to find the URL by connectionId
  if (connectionId === "someConnectionId") {
    return "https://yourdomain.com/this_is_where_you_begin";
  }
  return null;
}

app.listen(PORT, () => {
  console.log(`OAuth2 callback endpoint running on http://localhost:${PORT}`);
});

How to Guides

How to create OAuth2 based connections via Peaka API?

1. Use Your OAuth Implementation

2. Use Peaka OAuth Mechanism

2.a. Use Peaka OAuth App

2. b. Use Your Own OAuth App

How to Guides

​1. Use Your OAuth Implementation

​2. Use Peaka OAuth Mechanism

​2.a. Use Peaka OAuth App

​2. b. Use Your Own OAuth App

1. Use Your OAuth Implementation

2. Use Peaka OAuth Mechanism

2.a. Use Peaka OAuth App

2. b. Use Your Own OAuth App