amqp_0_9

Last updated: 4 minutes read.

Connects to an AMQP (0.91) queue. AMQP is a messaging protocol used by various message brokers, including RabbitMQ.

Common

# Common config fields, showing default values
input:
  label: ""
  amqp_0_9:
    urls: [] # No default (required)
    queue: "" # No default (required)
    consumer_tag: ""
    prefetch_count: 10

Advanced

# All config fields, showing default values
input:
  label: ""
  amqp_0_9:
    urls: [] # No default (required)
    queue: "" # No default (required)
    queue_declare:
      enabled: false
      durable: true
      auto_delete: false
    bindings_declare: [] # No default (optional)
    consumer_tag: ""
    auto_ack: false
    nack_reject_patterns: []
    prefetch_count: 10
    prefetch_size: 0
    tls:
      enabled: false
      skip_cert_verify: false
      enable_renegotiation: false
      root_cas: ""
      root_cas_file: ""
      client_certs: []

TLS is automatic when connecting to an amqps URL, but custom settings can be enabled in the tls section.

Metadata

This input adds the following metadata fields to each message:

- amqp_content_type
- amqp_content_encoding
- amqp_delivery_mode
- amqp_priority
- amqp_correlation_id
- amqp_reply_to
- amqp_expiration
- amqp_message_id
- amqp_timestamp
- amqp_type
- amqp_user_id
- amqp_app_id
- amqp_consumer_tag
- amqp_delivery_tag
- amqp_redelivered
- amqp_exchange
- amqp_routing_key
- All existing message headers, including nested headers prefixed with the key of their respective parent.

You can access these metadata fields using function interpolation.

Fields

urls

A list of URLs to connect to. The first URL to successfully establish a connection will be used until the connection is closed. If an item of the list contains commas it will be expanded into multiple URLs.

Type: array

# Examples

urls:
  - amqp://guest:[email protected]:5672/

urls:
  - amqp://127.0.0.1:5672/,amqp://127.0.0.2:5672/

urls:
  - amqp://127.0.0.1:5672/
  - amqp://127.0.0.2:5672/

queue

An AMQP queue to consume from.

Type: string

queue_declare

Allows you to passively declare the target queue. If the queue already exists then the declaration passively verifies that they match the target fields.

Type: object

queue_declare.enabled

Whether to enable queue declaration.

Type: bool
Default: false

queue_declare.durable

Whether the declared queue is durable.

Type: bool
Default: true

queue_declare.auto_delete

Whether the declared queue will auto-delete.

Type: bool
Default: false

bindings_declare

Allows you to passively declare bindings for the target queue.

Type: array

# Examples

bindings_declare:
  - exchange: foo
    key: bar

bindings_declare[].exchange

The exchange of the declared binding.

Type: string
Default: ""

bindings_declare[].key

The key of the declared binding.

Type: string
Default: ""

consumer_tag

A consumer tag.

Type: string
Default: ""

auto_ack

Acknowledge messages automatically as they are consumed rather than waiting for acknowledgments from downstream. This can improve throughput and prevent the pipeline from blocking but at the cost of eliminating delivery guarantees.

Type: bool
Default: false

nack_reject_patterns

A list of regular expression patterns whereby if a message that has failed to be delivered by Tyk Streams has an error that matches it will be dropped (or delivered to a dead-letter queue if one exists). By default failed messages are nacked with requeue enabled.

Type: array
Default: []

# Examples

nack_reject_patterns:
  - ^reject me please:.+$

prefetch_count

The maximum number of pending messages to have consumed at a time.

Type: int
Default: 10

prefetch_size

The maximum amount of pending messages measured in bytes to have consumed at a time.

Type: int
Default: 0

tls

Custom TLS settings can be used to override system defaults.

Type: object

tls.enabled

Whether custom TLS settings are enabled.

Type: bool
Default: false

tls.skip_cert_verify

Whether to skip server side certificate verification.

Type: bool
Default: false

tls.enable_renegotiation

Whether to allow the remote server to repeatedly request renegotiation. Enable this option if you’re seeing the error message local error: tls: no renegotiation.

Type: bool
Default: false

tls.root_cas

An optional root certificate authority to use. This is a string, representing a certificate chain from the parent trusted root certificate, to possible intermediate signing certificates, to the host certificate.

Type: string
Default: ""

# Examples

root_cas: |-
  -----BEGIN CERTIFICATE-----
  ...
  -----END CERTIFICATE-----  

tls.root_cas_file

An optional path of a root certificate authority file to use. This is a file, often with a .pem extension, containing a certificate chain from the parent trusted root certificate, to possible intermediate signing certificates, to the host certificate.

Type: string
Default: ""

# Examples

root_cas_file: ./root_cas.pem

tls.client_certs

A list of client certificates to use. For each certificate either the fields cert and key, or cert_file and key_file should be specified, but not both.

Type: array
Default: []

# Examples

client_certs:
  - cert: foo
    key: bar

client_certs:
  - cert_file: ./example.pem
    key_file: ./example.key

tls.client_certs[].cert

A plain text certificate to use.

Type: string
Default: ""

tls.client_certs[].key

A plain text certificate key to use.

Type: string
Default: ""

tls.client_certs[].cert_file

The path of a certificate to use.

Type: string
Default: ""

tls.client_certs[].key_file

The path of a certificate key to use.

Type: string
Default: ""

tls.client_certs[].password

A plain text password for when the private key is password encrypted in PKCS#1 or PKCS#8 format. The obsolete pbeWithMD5AndDES-CBC algorithm is not supported for the PKCS#8 format. Warning: Since it does not authenticate the ciphertext, it is vulnerable to padding oracle attacks that can let an attacker recover the plaintext.

Type: string
Default: ""

# Examples

password: foo

password: ${KEY_PASSWORD}