Best WhatsApp API Explore These 100 Examples

After many years of continuous hard work and being one of the first WhatsApp API providers with 6+ years in the market, Wassenger is possibly the most complete and versatile API solution for WhatsApp today.

Carefully crafted for Small and Medium businesses of all industries looking to integrate, scale and automate WhatsApp messaging and operations, like sending messages to phone numbers and group chats, creating message campaigns, managing and updating contacts like in a CRM, validating phone numbers can receive WhatsApp number, automate group management and messaging and much more!

We have summarized below the most relevant use cases, tutorials and API examples that cover pretty much (but not all) what you can achieve using the Wassenger WhatsApp API 😎

Tutorials
Chatbots
Integrations
Webhooks
API examples > Send messages
API examples > Group management
API examples > Contacts management
API examples > Files
API examples > Channels
API examples > Business Catalog
API examples > WhatsApp Campaigns
API examples > WhatsApp profile
API examples > Phone number validation
API examples > Chats management
API examples > Team members
API examples > WhatsApp numbers management

Webhooks

Webhooks are an incredibly useful and efficient way to implement event observability and integration between systems.

In essence, Webhooks provide a communication mechanism where a server-side application can notify a third-party server-side application when a new event that the consumer application might be interested in, has occurred on the system.

Webhooks operate on the concept of “event reaction” (don’t call me, I’ll call you if I have something new), and thus avoid the need for constant polling of the server-side application. Thus, rather than doing your consumer application constantly polling the server-side application to check for new events, the server-side application calls your application by invoking a client-provided webhook URL via HTTP protocol anytime the server-side has something new to report.

A clear and well-defined use case would be precisely a WhatsApp conversation, where you don’t know when a user will send you a message, yet you need to process that message right after is received and possibly reply to the user with another message. This can be achieved in an efficient and simple way by using Webhooks between your software and Wassenger. Webhooks are the foundation for creating automated conversations such as chatbots.

Webhooks can operate with any software no matter the language you use, as the common protocol would be HTTP(S) for communication and JSON format for data serialization.

Useful resources

Webhook events

This a list of the different supported webhook events that can notify your system based on different scenarios:

[message:in:new](https://app.wassenger.com/help/webhooks#when-a-new-inbound-message-is-received): On every new incoming message sent by users or groups to your number (only for Platform plans)
[message:out:new](https://app.wassenger.com/help/webhooks#when-a-new-outbound-message-is-successfully-delivered): On every outbound message delivered from the connected WhatsApp number to other users (only for Platform plans)
[message:out:ack](https://app.wassenger.com/help/webhooks#when-a-sent-message-is-read-or-played-by-the-user): On every outbound message status update: received or read by the user (only in Platform Business and Enterprise plans)
[message:out:failed](https://app.wassenger.com/help/webhooks#when-a-message-delivery-fails): On every failed message delivery such as max retries exceeded, invalid media or target phone number not found
[group:update](https://app.wassenger.com/help/webhooks#when-a-group-is-updated): On every group update: when a group subject is updated, when participant(s) are added or removed, when the group permissions are updated, etc.
[channel:in](https://app.wassenger.com/help/webhooks#when-a-new-message-is-received-on-the-channels): On every newly received message on any channel that you are following (only for Platform plans).
[message:out:sent](https://app.wassenger.com/help/webhooks#when-messages-are-delivered-gateway-plan-only-): Deprecated. On every successfully delivered message. Legacy event limited to Gateway plans.