https://api.signal.apollodeploy.com by default.
Before you start, create an API key with Emails: Send permission
and verify the From domain.
1
Install the SDK
2
Store your API key
Set
SIGNAL_API_KEY in the server environment or secret manager.3
Send an email
The Ruby transport returns the decoded response as a hash. Recipient fields are arrays, and the
From domain must be verified in the same Signal project as the API key.
Rails
Use the Rails integration and initializer.
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Compare every supported language and framework.