Integrate API Connection with your Teams app

Teams Toolkit helps you to access existing APIs for building Teams applications. These APIs are developed by your organization or third-party.

Requirement

Make sure that your project contains backend service, such as Azure Function or Azure Bot Service to host your API Connection.

Steps to add API Connection

The following steps help you to add API connection manually:

• Step 1: Add SDK to project
• Step 2: Provide ApiClient for project
• Step 3: Add Configuration for local debugging
• Step 4: Add Configuration for Azure

Step 1: Add SDK to project

Add a reference to the @microsoft/teamsfx package to package.json.

Step 2: Provide ApiClient for project

The TeamsFx SDK supports 5 different ways to connect to the API. You can create a module to connect your API and export the apiClient to provide for the project.

Basic Auth

Sample code for Basic Auth

const teamsfxSdk = require("@microsoft/teamsfx");

// Initialize a new axios instance to call your API
const authProvider = new teamsfxSdk.BasicAuthProvider(
  process.env.TEAMSFX_API_USERNAME,
  process.env.TEAMSFX_API_PASSWORD
);
const apiClient = teamsfxSdk.createApiClient(
  process.env.TEAMSFX_API_ENDPOINT,
  authProvider
);
module.exports.apiClient = apiClient;

Certification

Sample code for Certification

const teamsfxSdk = require("@microsoft/teamsfx");

// Initialize a new axios instance to call your API
const authProvider = new teamsfxSdk.CertificateAuthProvider(
  // TODO: 
  // 1. Add code to read your certificate and private key.
  // 2. Replace "<your-cert>" and "<your-private-key>" with your actual certificate and private key values
  // If you have a .pfx certificate, you can use the `createPfxCertOption` function to initialize your certificate
  teamsfxSdk.createPemCertOption("<your-cert>", "<your-private-key>")
);
const apiClient = teamsfxSdk.createApiClient(
  process.env.TEAMSFX_API_ENDPOINT,
  authProvider
);
module.exports.apiClient = apiClient;

Microsoft Entra

There are 2 scenarios here, please choose one of them.

• Scenario 1 is reusing the project Microsoft Entra app, make sure your project contains an existing Microsoft Entra app.
• Scenario 2 is using an existing Microsoft Entra App.

const teamsfxSdk = require("@microsoft/teamsfx");
// There are 2 scenarios here, please choose one of them. This sample uses the client credential flow to acquire a token for your API.
// Scenario 1. reuse the project Microsoft Entra app.
const appAuthConfig: AppCredentialAuthConfig = {
  authorityHost: process.env.AAD_APP_OAUTH_AUTHORITY_HOST,
  clientId: process.env.TEAMSFX_API_CLIENT_ID,
  tenantId: process.env.TEAMSFX_API_TENANT_ID,
  clientSecret: process.env.TEAMSFX_API_CLIENT_SECRET,
};
// Scenario 2. use an existing Microsoft Entra App.
const appAuthConfig: AppCredentialAuthConfig = {
  authorityHost: "https://login.microsoftonline.com",
  clientId: process.env.TEAMSFX_API_CLIENT_ID,
  tenantId: process.env.TEAMSFX_API_TENANT_ID,
  clientSecret: process.env.TEAMSFX_API_CLIENT_SECRET,
};
const appCredential = new AppCredential(appAuthConfig);
// Initialize a new axios instance to call your API
const authProvider = new teamsfxSdk.BearerTokenAuthProvider(
  // TODO: Replace '<your-api-scope>' with your required API scope
  async () => (await appCredential.getToken("<your-api-scope>")).token
);
const apiClient= teamsfxSdk.createApiClient(
  process.env.TEAMSFX_API_ENDPOINT,
  authProvider
);
module.exports.apiClient= apiClient;

API Key

Sample code for API Key

const teamsfxSdk = require("@microsoft/teamsfx");

// Initialize a new axios instance to call kudos, store API key in request header.
const authProvider = new teamsfxSdk.ApiKeyProvider(
  "{API-KEY-name}",
  process.env.TEAMSFX_API_API_KEY,
  teamsfxSdk.ApiKeyLocation.Header
);
// or store API key in request params.
const authProvider = new teamsfxSdk.ApiKeyProvider(
  "{API-KEY-name}",
  process.env.TEAMSFX_API_API_KEY,
  teamsfxSdk.ApiKeyLocation.QueryParams
);
const apiClient = teamsfxSdk.createApiClient(
  process.env.TEAMSFX_API_ENDPOINT,
  authProvider
);
module.exports.apiClient = apiClient;

Custom Auth Implementation

Sample code for Custom Auth Implementation

const teamsfxSdk = require("@microsoft/teamsfx");

// A custom authProvider implements the `AuthProvider` interface.
// This sample authProvider implementation will set a custom property in the request header
class CustomAuthProvider {
  customProperty;
  customValue;

  constructor(customProperty, customValue) {
    this.customProperty = customProperty;
    this.customValue = customValue;
  }

  // Replace the sample code with your own logic.
  AddAuthenticationInfo = async (config) => {
    if (!config.headers) {
      config.headers = {};
    }
    config.headers[this.customProperty] = this.customValue;
    return config;
  };
}

const authProvider = new CustomAuthProvider(
  // You can also add configuration to the file `.env.teamsfx.local` and use `process.env.{setting_name}` to read the configuration. For example:
  //  process.env.TEAMSFX_API_CUSTOM_PROPERTY,
  //  process.env.TEAMSFX_API_CUSTOM_VALUE
  "customPropery",
  "customValue"
);
// Initialize a new axios instance to call your API
const apiClient = teamsfxSdk.createApiClient(
  process.env.TEAMSFX_API_ENDPOINT,
  authProvider
);
module.exports.apiClient = apiClient;

You can import the apiClient (an Axios instance) in another file and call the APIs and authentication is now handled for you automatically.

Here is an example for a GET request to "relative_path_of_target_api":

const { apiClient } = require("relative_path_to_this_file");
const response = await apiClient.get("relative_path_of_target_api");
// You only need to enter the relative path for your API.
// For example, if you want to call api https://my-api-endpoint/test and you configured https://my-api-endpoint as the API endpoint,
// your code will be: const response = await kudosClient.get("test");

const responseBody = response.data;

Step 3: Add Configuration for local debugging

According to the apiClient created in Step 2, select the corresponding type to configure your API for local debugging.

Basic Auth

Append your Api connection configuration to env/.env.local

...
// set up environment variables required by teamsfx
TEAMSFX_API_ENDPOINT =
TEAMSFX_API_USERNAME =
TEAMSFX_API_PASSWORD =

Certification

Append your Api connection configuration to env/.env.local

...
// set up environment variables required by teamsfx
TEAMSFX_API_ENDPOINT =

Microsoft Entra

There are 2 scenarios here, please choose one of them.

• Scenario 1 is reusing the project Microsoft Entra app, make sure your project contains an existing Microsoft Entra app.
• Scenario 2 is using an existing Microsoft Entra App.

Append your Api connection configuration to env/.env.local

...
// set up environment variables required by teamsfx
TEAMSFX_API_ENDPOINT =
// Scenario 1
TEAMSFX_API_TENANT_ID = 
TEAMSFX_API_CLIENT_ID = 
TEAMSFX_API_CLIENT_SECRET = 
AAD_APP_OAUTH_AUTHORITY_HOST = 
// Scenario 2
TEAMSFX_API_TENANT_ID =
TEAMSFX_API_CLIENT_ID =
TEAMSFX_API_CLIENT_SECRET =

You can use common as tenant id if necessary.

API Key

Append your Api connection configuration to ./env/.env.local

...
// set up environment variables required by teamsfx
TEAMSFX_API_ENDPOINT =
TEAMSFX_API_API_KEY =

Custom Auth Implementation

Append your Api connection configuration to env/.env.local

...
// set up environment variables required by teamsfx
TEAMSFX_API_ENDPOINT=

Step 4: Add Configuration for Azure

Before provision, make sure the project has Azure Function or Bot Service to host your API connection. Then add the apiClient to the correspoing service according to your design.

If hosting in the Azure Function, please append following appSettings to infra/azure.bicep

If hosting in the Bot Service, please append following appSettings to infra/botRegistration/azurebot.bicep

Basic Auth

• Host in the Azure Function, append following values to infra/azure.bicep

...
// Azure Functions that hosts your function code
resource functionApp 'Microsoft.Web/sites@2021-02-01' = {
  ...
      appSettings: [
        {
          name: 'TEAMSFX_API_ENDPOINT',
          value: ''
        }
        {
          name: 'TEAMSFX_API_USERNAME',
          value: ''
        }
        {
          name: 'TEAMSFX_API_USERNAME',
          value: ''
        }
        ...

• Host in the Bot Service, append following values to infra/botRegistration/azurebot.bicep

...
// Register your web service as a bot with the Bot Framework
resource botService 'Microsoft.BotService/botServices@2021-03-01' = {
  ...
  properties: {
    TEAMSFX_API_ENDPOINT: ''
    TEAMSFX_API_USERNAME: ''
    TEAMSFX_API_USERNAME: ''
    ...
  }

Certification

• Host in the Azure Function, append following values to infra/azure.bicep

...
// Azure Functions that hosts your function code
resource functionApp 'Microsoft.Web/sites@2021-02-01' = {
  ...
      appSettings: [
        {
          name: 'TEAMSFX_API_ENDPOINT',
          value: ''
        }
        ...

• Host in the Bot Service, append following values to infra/botRegistration/azurebot.bicep

...
// Register your web service as a bot with the Bot Framework
resource botService 'Microsoft.BotService/botServices@2021-03-01' = {
  ...
  properties: {
    TEAMSFX_API_ENDPOINT: ''
    ...
  }

Microsoft Entra

• Host in the Azure Function, append following values to infra/azure.bicep

...
// Azure Functions that hosts your function code
resource functionApp 'Microsoft.Web/sites@2021-02-01' = {
  ...
      appSettings: [
        {
          name: 'TEAMSFX_API_ENDPOINT',
          value: ''
        }
        // Scenario 1
        {
          name: 'TEAMSFX_API_TENANT_ID',
          value: ''
        }
        {
          name: 'TEAMSFX_API_CLIENT_ID',
          value: ''
        }
        {
          name: 'TEAMSFX_API_CLIENT_SECRET',
          value: ''
        }
        {
          name: 'AAD_APP_OAUTH_AUTHORITY_HOST',
          value: ''
        }

        // Scenario 2
        {
          name: 'TEAMSFX_API_TENANT_ID',
          value: ''
        }
        {
          name: 'TEAMSFX_API_CLIENT_ID'
          value: '' 
        }
        {
          name: 'TEAMSFX_API_CLIENT_SECRET',
          value: ''
        }
        ...

• Host in the Bot Service, append following values to infra/botRegistration/azurebot.bicep

...
// Register your web service as a bot with the Bot Framework
resource botService 'Microsoft.BotService/botServices@2021-03-01' = {
  ...
  properties: {
    TEAMSFX_API_ENDPOINT: ''
    // Scenario 1
    TEAMSFX_API_TENANT_ID = 
    TEAMSFX_API_CLIENT_ID = 
    TEAMSFX_API_CLIENT_SECRET = 
    AAD_APP_OAUTH_AUTHORITY_HOST = 
    // Scenario 2
    TEAMSFX_API_TENANT_ID =
    TEAMSFX_API_CLIENT_ID =
    TEAMSFX_API_CLIENT_SECRET =
    ...
  }

You can use common as tenant id if necessary.

API Key

• Host in the Azure Function, append following values to infra/azure.bicep

...
// Azure Functions that hosts your function code
resource functionApp 'Microsoft.Web/sites@2021-02-01' = {
  ...
      appSettings: [
        {
          name: 'TEAMSFX_API_ENDPOINT',
          value: ''
        }
        {
          name: 'TEAMSFX_API_API_KEY',
          value: ''
        }
        ...

• Host in the Bot Service, append following values to infra/botRegistration/azurebot.bicep

...
// Register your web service as a bot with the Bot Framework
resource botService 'Microsoft.BotService/botServices@2021-03-01' = {
  ...
  properties: {
    TEAMSFX_API_ENDPOINT: ''
    TEAMSFX_API_API_KEY: ''
    ...
  }

Custom Auth Implementation

• Host in the Azure Function, append following values to infra/azure.bicep

...
// Azure Functions that hosts your function code
resource functionApp 'Microsoft.Web/sites@2021-02-01' = {
  ...
      appSettings: [
        {
          name: 'TEAMSFX_API_ENDPOINT',
          value: ''
        }
        ...

• Host in the Bot Service, append following values to infra/botRegistration/azurebot.bicep

...
// Register your web service as a bot with the Bot Framework
resource botService 'Microsoft.BotService/botServices@2021-03-01' = {
  ...
  properties: {
    TEAMSFX_API_ENDPOINT: ''
    ...
  }