ExAws. SQS
(ExAws.SQS v4.0.0)
View Source
Operations on AWS SQS.
This is a modernized fork of the archived
ex-aws/ex_aws_sqs. The biggest change is that every
operation now speaks the SQS JSON protocol (AmazonSQS.<Action> over
application/x-amz-json-1.0) instead of the legacy Query/XML protocol. See the README for
the full list of changes and a migration guide.
Responses
Because requests are built with ExAws.Operation.JSON, a successful ExAws.request/1 call
returns {:ok, response} where response is the JSON response body decoded as-is by your
configured :json_codec (Elixir's built-in JSON module since 1.18, or Jason, etc.) — a map with the exact field names AWS documents,
e.g. %{"MessageId" => "...", "MD5OfMessageBody" => "..."} for send_message/3. There is no
extra normalization layer: whatever the
AWS API Reference
says a call returns is what you get back, keyed exactly as documented (a handful of AWS
operations use unusual casing, e.g. list_dead_letter_source_queues/1 returns "queueUrls"
with a lowercase q — that's an AWS quirk, not a bug here).
Summary
Functions
Adds a permission with the provided label to the Queue for a specific action for a specific account.
Cancels a specified message movement task.
Extends the read lock timeout for the specified message from the specified queue to the specified value.
Extends the read lock timeout for a batch of 1..10 messages.
Create queue.
Delete a message from a SQS Queue
Deletes a list of messages from a SQS Queue in a single request
Delete a queue
Gets attributes of a SQS Queue
Get queue URL
Retrieves the dead letter source queues for a given SQS Queue
Gets the most recent message movement tasks (up to the last 31 days) for a specified source queue ARN.
List tags of a SQS Queue.
Retrieves a list of all the SQS Queues
Purge all messages in a SQS Queue
Read messages from a SQS Queue
Removes permission with the given label from the Queue
Send a message to a SQS Queue
Send up to 10 messages to a SQS Queue in a single request.
Set attributes of a SQS Queue.
Starts an asynchronous task to move messages from a specified source queue to a specified destination queue.
Apply tags to a SQS Queue.
Remove tags from a SQS Queue.
Types
@type message_visibility_batch_item() :: %{ id: binary(), receipt_handle: binary(), visibility_timeout: visibility_timeout() }
@type queue_attributes() :: [ policy: binary(), visibility_timeout: visibility_timeout(), maximum_message_size: 1024..262_144, message_retention_period: 60..1_209_600, approximate_number_of_messages: binary(), approximate_number_of_messages_not_visible: binary(), created_timestamp: binary(), last_modified_timestamp: binary(), queue_arn: binary(), approximate_number_of_messages_delayed: binary(), delay_seconds: 0..900, receive_message_wait_time_seconds: 0..20, redrive_policy: binary(), redrive_allow_policy: binary(), fifo_queue: boolean(), content_based_deduplication: boolean(), kms_master_key_id: binary(), kms_data_key_reuse_period_seconds: 60..86400, deduplication_scope: binary(), fifo_throughput_limit: binary(), sqs_managed_sse_enabled: boolean() ]
@type receive_message_opts() :: [ attribute_names: :all | [sqs_message_attribute_name(), ...], message_attribute_names: :all | [String.Chars.t(), ...], max_number_of_messages: 1..10, visibility_timeout: 0..43200, wait_time_seconds: 0..20, receive_request_attempt_id: String.t() ]
@type sqs_acl() :: %{required(binary()) => :all | [sqs_permission(), ...]}
@type sqs_batch_message() :: map() | [ id: binary(), message_body: binary(), delay_seconds: 0..900, message_attributes: sqs_message_attribute() | [sqs_message_attribute(), ...], message_deduplication_id: binary(), message_group_id: binary() ]
@type sqs_message_attribute_name() ::
:sender_id
| :sent_timestamp
| :approximate_receive_count
| :approximate_first_receive_timestamp
| :sequence_number
| :message_deduplication_id
| :message_group_id
| :aws_trace_header
| :dead_letter_queue_source_arn
@type sqs_message_opts() :: [ delay_seconds: 0..900, message_attributes: sqs_message_attribute() | [sqs_message_attribute(), ...], message_deduplication_id: binary(), message_group_id: binary() ]
@type sqs_permission() ::
:send_message
| :receive_message
| :delete_message
| :change_message_visibility
| :get_queue_attributes
@type sqs_queue_attribute_name() ::
:policy
| :visibility_timeout
| :maximum_message_size
| :message_retention_period
| :approximate_number_of_messages
| :approximate_number_of_messages_not_visible
| :created_timestamp
| :last_modified_timestamp
| :queue_arn
| :approximate_number_of_messages_delayed
| :delay_seconds
| :receive_message_wait_time_seconds
| :redrive_policy
| :redrive_allow_policy
| :fifo_queue
| :content_based_deduplication
| :deduplication_scope
| :fifo_throughput_limit
| :sqs_managed_sse_enabled
@type visibility_timeout() :: 0..43200
Functions
@spec add_permission( queue_url :: binary(), label :: binary(), permissions :: sqs_acl() ) :: ExAws.Operation.JSON.t()
Adds a permission with the provided label to the Queue for a specific action for a specific account.
@spec cancel_message_move_task(task_handle :: binary()) :: ExAws.Operation.JSON.t()
Cancels a specified message movement task.
@spec change_message_visibility( queue_url :: binary(), receipt_handle :: binary(), visibility_timeout :: visibility_timeout() ) :: ExAws.Operation.JSON.t()
Extends the read lock timeout for the specified message from the specified queue to the specified value.
@spec change_message_visibility_batch( queue_url :: binary(), opts :: [message_visibility_batch_item(), ...] ) :: ExAws.Operation.JSON.t()
Extends the read lock timeout for a batch of 1..10 messages.
@spec create_queue( queue_name :: binary(), queue_attributes :: queue_attributes(), tags :: map() ) :: ExAws.Operation.JSON.t()
Create queue.
Attributes
:delay_seconds- The length of time, in seconds, for which the delivery of all messages in the queue is delayed. Valid values: An integer from 0 to 900 seconds (15 minutes). Default: 0.:maximum_message_size- The limit of how many bytes a message can contain before Amazon SQS rejects it. Valid values: An integer from 1,024 bytes (1 KiB) to 262,144 bytes (256 KiB). Default: 262,144 (256 KiB).:message_retention_period- The length of time, in seconds, for which Amazon SQS retains a message. Valid values: An integer from 60 seconds (1 minute) to 1,209,600 seconds (14 days). Default: 345,600 (4 days).:policy- The queue's policy. A valid AWS policy. For more information about policy structure, see Overview of AWS IAM Policies in the Amazon IAM User Guide.:receive_message_wait_time_seconds- The length of time, in seconds, for which a ReceiveMessage action waits for a message to arrive. Valid values: An integer from 0 to 20 (seconds). Default: 0.:redrive_policy- The string that includes the parameters for the dead-letter queue functionality of the source queue as a JSON object. For more information about the redrive policy and dead-letter queues, see Using Amazon SQS Dead-Letter Queues in the Amazon Simple Queue Service Developer Guide.deadLetterTargetArn– The Amazon Resource Name (ARN) of the dead-letter queue to which Amazon SQS moves messages after the value of maxReceiveCount is exceeded.maxReceiveCount– The number of times a message is delivered to the source queue before being moved to the dead-letter queue. When the ReceiveCount for a message exceeds the maxReceiveCount for a queue, Amazon SQS moves the message to the dead-letter-queue.
Note
The dead-letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead-letter queue of a standard queue must also be a standard queue.
:visibility_timeout- The visibility timeout for the queue, in seconds. Valid values: An integer from 0 to 43,200 (12 hours). Default: 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon Simple Queue Service Developer Guide.:fifo_queue- Designates a queue as FIFO. Valid values: true, false. If you don't specify the FifoQueue attribute, Amazon SQS creates a standard queue. You can provide this attribute only during queue creation. You can't change it for an existing queue. When you set this attribute, you must also provide the MessageGroupId for your messages explicitly. For more information, see FIFO Queue Logic in the Amazon Simple Queue Service Developer Guide.:content_based_deduplication- Enables content-based deduplication. Valid values: true, false. For more information, see Exactly-Once Processing in the Amazon Simple Queue Service Developer Guide.:kms_master_key_id- The ID of an AWS-managed customer master key (CMK) for Amazon SQS or a custom CMK. For more information, see Key Terms. While the alias of the AWS-managed CMK for Amazon SQS is always alias/aws/sqs, the alias of a custom CMK can, for example, be alias/MyAlias . For more examples, see KeyId in the AWS Key Management Service API Reference.:kms_data_key_reuse_period_seconds- The length of time, in seconds, for which Amazon SQS can reuse a data key to encrypt or decrypt messages before calling AWS KMS again. An integer representing seconds, between 60 seconds (1 minute) and 86,400 seconds (24 hours). Default: 300 (5 minutes).:sqs_managed_sse_enabled- Enables server-side queue encryption using SQS owned encryption keys. Valid values: true, false.
Examples
iex> ExAws.SQS.create_queue("my-queue", [visibility_timeout: 60], %{"team" => "platform"}).data
%{
"QueueName" => "my-queue",
"Attributes" => %{"VisibilityTimeout" => "60"},
"tags" => %{"team" => "platform"}
}
@spec delete_message(queue_url :: binary(), receipt_handle :: binary()) :: ExAws.Operation.JSON.t()
Delete a message from a SQS Queue
@spec delete_message_batch( queue_url :: binary(), message_receipts :: [delete_message_batch_item(), ...] ) :: ExAws.Operation.JSON.t()
Deletes a list of messages from a SQS Queue in a single request
@spec delete_queue(queue_url :: binary()) :: ExAws.Operation.JSON.t()
Delete a queue
@spec get_queue_attributes( queue_url :: binary(), attribute_names :: :all | [sqs_queue_attribute_name(), ...] ) :: ExAws.Operation.JSON.t()
Gets attributes of a SQS Queue
@spec get_queue_url( queue_name :: binary(), opts :: [{:queue_owner_aws_account_id, binary()}] ) :: ExAws.Operation.JSON.t()
Get queue URL
Options
:queue_owner_aws_account_id- The AWS account ID of the account that created the queue.
@spec list_dead_letter_source_queues( queue_url :: binary(), opts :: [max_results: pos_integer(), next_token: binary()] ) :: ExAws.Operation.JSON.t()
Retrieves the dead letter source queues for a given SQS Queue
Options
:max_results- Maximum number of results to include in the response.:next_token- Pagination token from a previous call, used to retrieve the next page of results.
@spec list_message_move_tasks(source_arn :: binary(), opts :: [{:max_results, 1..10}]) :: ExAws.Operation.JSON.t()
Gets the most recent message movement tasks (up to the last 31 days) for a specified source queue ARN.
Options
:max_results- Maximum number of results to include in the response, from 1 to 10. Default 1.
@spec list_queue_tags(queue_url :: binary()) :: ExAws.Operation.JSON.t()
List tags of a SQS Queue.
@spec list_queues( opts :: [ queue_name_prefix: binary(), max_results: pos_integer(), next_token: binary() ] ) :: ExAws.Operation.JSON.t()
Retrieves a list of all the SQS Queues
Options
:queue_name_prefix- A string to use for filtering the list results. Only those queues whose name begins with the specified string are returned. Queue URLs and names are case-sensitive.:max_results- Maximum number of results to include in the response.:next_token- Pagination token from a previous call, used to retrieve the next page of results.
@spec purge_queue(queue_url :: binary()) :: ExAws.Operation.JSON.t()
Purge all messages in a SQS Queue
@spec receive_message(queue_url :: binary(), opts :: receive_message_opts()) :: ExAws.Operation.JSON.t()
Read messages from a SQS Queue
Options
:attribute_names-:allor a list of message system attributes to include in the response (sent as the modernMessageSystemAttributeNamesfield). Valid attributes are: [:sender_id, :sent_timestamp, :approximate_receive_count, :approximate_first_receive_timestamp, :sequence_number, :message_deduplication_id, :message_group_id, :aws_trace_header, :dead_letter_queue_source_arn]:message_attribute_names-:allor a list of message attributes to include.The name can contain alphanumeric characters and the underscore (_), hyphen (-), and period (.).
The name is case-sensitive and must be unique among all attribute names for the message.
The name must not start with AWS-reserved prefixes such as AWS. or Amazon. (or any casing variants).
The name must not start or end with a period (.), and it should not have periods in succession (..).
The name can be up to 256 characters long.
:max_number_of_messages- The maximum number of messages to return. Amazon SQS never returns more messages than this value (however, fewer messages might be returned). Valid values: 1 to 10. Default: 1.:visibility_timeout- The duration (in seconds) that the received messages are hidden from subsequent retrieve requests after being retrieved by a ReceiveMessage request.:wait_time_seconds- The duration (in seconds) for which the call waits for a message to arrive in the queue before returning.:receive_request_attempt_id- This parameter applies only to FIFO (first-in-first-out) queues. The token used for deduplication of ReceiveMessage calls.
@spec remove_permission(queue_url :: binary(), label :: binary()) :: ExAws.Operation.JSON.t()
Removes permission with the given label from the Queue
@spec send_message( queue_url :: binary(), message_body :: binary(), opts :: sqs_message_opts() ) :: ExAws.Operation.JSON.t()
Send a message to a SQS Queue
Options
:delay_seconds- The length of time, in seconds, for which to delay a specific message. Valid values: 0 to 900.:message_attributes- Each message attribute consists of a:name,:data_type, and:value. For binary attributes (data_type: :binary), pass the raw binary in:value; the library base64-encodes it for the JSON protocol. See Amazon SQS Message Attributes.:message_deduplication_id- This parameter applies only to FIFO (first-in-first-out) queues.:message_group_id- This parameter applies only to FIFO (first-in-first-out) queues.
Examples
iex> ExAws.SQS.send_message("https://queue.url", "Hello!").data
%{"QueueUrl" => "https://queue.url", "MessageBody" => "Hello!"}
iex> ExAws.SQS.send_message("https://queue.url", "Hello!",
...> message_attributes: [%{name: "priority", data_type: :number, value: 1}]
...> ).data
%{
"QueueUrl" => "https://queue.url",
"MessageBody" => "Hello!",
"MessageAttributes" => %{"priority" => %{"DataType" => "Number", "StringValue" => "1"}}
}
@spec send_message_batch( queue_url :: binary(), messages :: [sqs_batch_message(), ...] ) :: ExAws.Operation.JSON.t()
Send up to 10 messages to a SQS Queue in a single request.
Each entry needs at least an :id (unique within the batch, used to match up the
"Successful"/"Failed" results in the response) and a :message_body.
Entries may be keyword lists or maps.
Examples
iex> ExAws.SQS.send_message_batch("https://queue.url", [
...> [id: "a1", message_body: "payload1"],
...> [id: "a2", message_body: "payload2", delay_seconds: 10]
...> ]).data
%{
"QueueUrl" => "https://queue.url",
"Entries" => [
%{"Id" => "a1", "MessageBody" => "payload1"},
%{"Id" => "a2", "MessageBody" => "payload2", "DelaySeconds" => 10}
]
}A successful call returns a body shaped like:
%{
"Successful" => [%{"Id" => "a1", "MessageId" => "...", "MD5OfMessageBody" => "..."}, ...],
"Failed" => [%{"Id" => "a2", "Code" => "...", "Message" => "...", "SenderFault" => true}, ...]
}
@spec set_queue_attributes(queue_url :: binary(), attributes :: queue_attributes()) :: ExAws.Operation.JSON.t()
Set attributes of a SQS Queue.
@spec start_message_move_task( source_arn :: binary(), opts :: [ destination_arn: binary(), max_number_of_messages_per_second: pos_integer() ] ) :: ExAws.Operation.JSON.t()
Starts an asynchronous task to move messages from a specified source queue to a specified destination queue.
Options
:destination_arn- The ARN of the queue that receives the moved messages. Defaults to the dead-letter queue's redrive policy source queue.:max_number_of_messages_per_second- Throughput cap for the move, from 1 to 500 messages per second.
Examples
iex> ExAws.SQS.start_message_move_task("arn:aws:sqs:us-east-1:123:MyDLQ").data
%{"SourceArn" => "arn:aws:sqs:us-east-1:123:MyDLQ"}
@spec tag_queue(queue_url :: binary(), tags :: map()) :: ExAws.Operation.JSON.t()
Apply tags to a SQS Queue.
@spec untag_queue(queue_url :: binary(), tag_keys :: list()) :: ExAws.Operation.JSON.t()
Remove tags from a SQS Queue.