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Emails_send

POST
/emails
curl --request POST \
--url http://localhost:3000/api/emails \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{ "templateId": "example", "destination": "hello@example.com", "variables": { "additionalProperty": "example" } }'

Send a transactional email. The referenced Template’s current content is rendered with the supplied variables at send time. Respects the workspace Suppression list (a suppressed destination returns status suppressed) but not marketing Unsubscribe — transactional mail carries no sending source.

Supply an Idempotency-Key to make retries safe: a repeated key replays the original result without sending a second email, and a key whose first request is still in flight returns 409.

Idempotency-Key
string

Client-supplied key that makes a retried send idempotent (Stripe-style)

Media typeapplication/json

Send a single transactional email by rendering a referenced template.

object
templateId
required

The Template to render at send time (bound by reference, not copied)

string format: int64
/^[0-9]{1,18}$/
destination
required

The destination email address

string format: email
<= 320 characters
variables

Per-call variables merged into the template’s subject and body (Liquid {{ }})

object
key
additional properties

Example generated

{
"templateId": "example",
"destination": "hello@example.com",
"variables": {
"additionalProperty": "example"
}
}

The request has been accepted for processing, but processing has not yet completed.

Media typeapplication/json

Result of a transactional send

object
id
required

The id of the durable send record (the send-history trace)

string format: int64
/^[0-9]{1,18}$/
status
required

Whether the message was sent or skipped as suppressed

string
Allowed values: sent suppressed
destination
required

The normalized destination the result applies to

string

Example

{
"status": "sent"
}

RFC 7807 bad request response

Media typeapplication/problem+json

RFC 7807 Problem Details

object
code

Why the request was refused, when the client should act on it

string
Allowed values: second_factor_required email_verification_required signup_closed
type

A URI reference that identifies the problem type

string
title

A short, human-readable summary of the problem type

string
status

HTTP status code

integer format: int32
detail

A human-readable explanation specific to this occurrence

string
instance

A URI reference that identifies the specific occurrence

string
errors

Validation errors grouped by field

object
key
additional properties
Array<string>
form

Form-level validation error

string
fields

Field validation errors

object
key
additional properties
string
retryAfter

Seconds to wait before retrying; set on a 429 so a client that only sees the body can show the wait

integer format: int32
debug

Why a 500 happened, sent only by a development server (SPHERICON_ENV=development)

object
error
required

The error that failed the request, or the panic value

string
stack

The goroutine stack of a panic; absent for an error a handler returned

string
requestId

The request id the server log carries for this request

string
method
required

The HTTP method of the failed request

string
path
required

The path of the failed request

string

Example

{
"code": "second_factor_required"
}

RFC 7807 unauthorized response

Media typeapplication/problem+json

RFC 7807 Problem Details

object
code

Why the request was refused, when the client should act on it

string
Allowed values: second_factor_required email_verification_required signup_closed
type

A URI reference that identifies the problem type

string
title

A short, human-readable summary of the problem type

string
status

HTTP status code

integer format: int32
detail

A human-readable explanation specific to this occurrence

string
instance

A URI reference that identifies the specific occurrence

string
errors

Validation errors grouped by field

object
key
additional properties
Array<string>
form

Form-level validation error

string
fields

Field validation errors

object
key
additional properties
string
retryAfter

Seconds to wait before retrying; set on a 429 so a client that only sees the body can show the wait

integer format: int32
debug

Why a 500 happened, sent only by a development server (SPHERICON_ENV=development)

object
error
required

The error that failed the request, or the panic value

string
stack

The goroutine stack of a panic; absent for an error a handler returned

string
requestId

The request id the server log carries for this request

string
method
required

The HTTP method of the failed request

string
path
required

The path of the failed request

string

Example

{
"code": "second_factor_required"
}

RFC 7807 not found response

Media typeapplication/problem+json

RFC 7807 Problem Details

object
code

Why the request was refused, when the client should act on it

string
Allowed values: second_factor_required email_verification_required signup_closed
type

A URI reference that identifies the problem type

string
title

A short, human-readable summary of the problem type

string
status

HTTP status code

integer format: int32
detail

A human-readable explanation specific to this occurrence

string
instance

A URI reference that identifies the specific occurrence

string
errors

Validation errors grouped by field

object
key
additional properties
Array<string>
form

Form-level validation error

string
fields

Field validation errors

object
key
additional properties
string
retryAfter

Seconds to wait before retrying; set on a 429 so a client that only sees the body can show the wait

integer format: int32
debug

Why a 500 happened, sent only by a development server (SPHERICON_ENV=development)

object
error
required

The error that failed the request, or the panic value

string
stack

The goroutine stack of a panic; absent for an error a handler returned

string
requestId

The request id the server log carries for this request

string
method
required

The HTTP method of the failed request

string
path
required

The path of the failed request

string

Example

{
"code": "second_factor_required"
}

RFC 7807 conflict response

Media typeapplication/problem+json

RFC 7807 Problem Details

object
code

Why the request was refused, when the client should act on it

string
Allowed values: second_factor_required email_verification_required signup_closed
type

A URI reference that identifies the problem type

string
title

A short, human-readable summary of the problem type

string
status

HTTP status code

integer format: int32
detail

A human-readable explanation specific to this occurrence

string
instance

A URI reference that identifies the specific occurrence

string
errors

Validation errors grouped by field

object
key
additional properties
Array<string>
form

Form-level validation error

string
fields

Field validation errors

object
key
additional properties
string
retryAfter

Seconds to wait before retrying; set on a 429 so a client that only sees the body can show the wait

integer format: int32
debug

Why a 500 happened, sent only by a development server (SPHERICON_ENV=development)

object
error
required

The error that failed the request, or the panic value

string
stack

The goroutine stack of a panic; absent for an error a handler returned

string
requestId

The request id the server log carries for this request

string
method
required

The HTTP method of the failed request

string
path
required

The path of the failed request

string

Example

{
"code": "second_factor_required"
}

RFC 7807 validation response

Media typeapplication/problem+json

RFC 7807 Problem Details

object
code

Why the request was refused, when the client should act on it

string
Allowed values: second_factor_required email_verification_required signup_closed
type

A URI reference that identifies the problem type

string
title

A short, human-readable summary of the problem type

string
status

HTTP status code

integer format: int32
detail

A human-readable explanation specific to this occurrence

string
instance

A URI reference that identifies the specific occurrence

string
errors

Validation errors grouped by field

object
key
additional properties
Array<string>
form

Form-level validation error

string
fields

Field validation errors

object
key
additional properties
string
retryAfter

Seconds to wait before retrying; set on a 429 so a client that only sees the body can show the wait

integer format: int32
debug

Why a 500 happened, sent only by a development server (SPHERICON_ENV=development)

object
error
required

The error that failed the request, or the panic value

string
stack

The goroutine stack of a panic; absent for an error a handler returned

string
requestId

The request id the server log carries for this request

string
method
required

The HTTP method of the failed request

string
path
required

The path of the failed request

string

Example

{
"code": "second_factor_required"
}

RFC 7807 too many requests response: a rate limit was exceeded (ADR 0025)

Media typeapplication/problem+json

RFC 7807 Problem Details

object
code

Why the request was refused, when the client should act on it

string
Allowed values: second_factor_required email_verification_required signup_closed
type

A URI reference that identifies the problem type

string
title

A short, human-readable summary of the problem type

string
status

HTTP status code

integer format: int32
detail

A human-readable explanation specific to this occurrence

string
instance

A URI reference that identifies the specific occurrence

string
errors

Validation errors grouped by field

object
key
additional properties
Array<string>
form

Form-level validation error

string
fields

Field validation errors

object
key
additional properties
string
retryAfter

Seconds to wait before retrying; set on a 429 so a client that only sees the body can show the wait

integer format: int32
debug

Why a 500 happened, sent only by a development server (SPHERICON_ENV=development)

object
error
required

The error that failed the request, or the panic value

string
stack

The goroutine stack of a panic; absent for an error a handler returned

string
requestId

The request id the server log carries for this request

string
method
required

The HTTP method of the failed request

string
path
required

The path of the failed request

string

Example

{
"code": "second_factor_required"
}
Retry-After
required
integer format: int32

Seconds to wait before retrying

X-RateLimit-Limit
required
integer format: int32

The request budget of the window that was exceeded

X-RateLimit-Remaining
required
integer format: int32

Requests left in the current window

X-RateLimit-Reset
required
integer format: int64

Unix time at which the window resets