terraform/website/docs/registry/api.html.md

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registry Terraform Registry - HTTP API docs-registry-api The /acl endpoints create, update, destroy, and query ACL tokens in Consul.

HTTP API

The Terraform Registry has an HTTP API for reading and downloading registry modules.

Terraform interacts with the registry as read-only. Therefore, the documented API is read-only. Any endpoints that aren't documented on this page can and will likely change over time. This allows differing methods for getting modules into the registry while keeping a consistent API for reading modules in the registry.

List Latest Version of Module for All Providers

This endpoint returns the latest version of each provider for a module.

Method Path Produces
GET /v1/modules/:namespace/:name application/json

Parameters

  • namespace (string: <required>) - The user or organization the module is owned by. This is required and is specified as part of the URL path.

  • name (string: <required>) - The name of the module. This is required and is specified as part of the URL path.

Query Parameters

  • offset, limit (int: <optional>) - See Pagination for details.

Sample Request

$ curl \
    https://registry.terraform.io/v1/modules/hashicorp/consul

Sample Response

{
  "meta": {
    "limit": 15,
    "current_offset": 0
  },
  "modules": [
    {
      "id": "hashicorp/consul/azurerm/0.0.1",
      "owner": "gruntwork-team",
      "namespace": "hashicorp",
      "name": "consul",
      "version": "0.0.1",
      "provider": "azurerm",
      "description": "A Terraform Module for how to run Consul on AzureRM using Terraform and Packer",
      "source": "https://github.com/hashicorp/terraform-azurerm-consul",
      "published_at": "2017-09-14T23:22:59.923047Z",
      "downloads": 100,
      "verified": false
    },
    {
      "id": "hashicorp/consul/aws/0.0.1",
      "owner": "gruntwork-team",
      "namespace": "hashicorp",
      "name": "consul",
      "version": "0.0.1",
      "provider": "aws",
      "description": "A Terraform Module for how to run Consul on AWS using Terraform and Packer",
      "source": "https://github.com/hashicorp/terraform-aws-consul",
      "published_at": "2017-09-14T23:22:44.793647Z",
      "downloads": 113,
      "verified": false
    }
  ]
}

Latest Module for a Single Provider

This endpoint returns the latest version of a module for a single provider.

Method Path Produces
GET /v1/modules/:namespace/:name/:provider application/json

Parameters

  • namespace (string: <required>) - The user the module is owned by. This is required and is specified as part of the URL path.

  • name (string: <required>) - The name of the module. This is required and is specified as part of the URL path.

  • provider (string: <required>) - The name of the provider. This is required and is specified as part of the URL path.

Sample Request

$ curl \
    https://registry.terraform.io/v1/modules/hashicorp/consul/aws

Sample Response

Note this response has has some fields trimmed for clarity.

{
  "id": "hashicorp/consul/aws/0.0.1",
  "owner": "gruntwork-team",
  "namespace": "hashicorp",
  "name": "consul",
  "version": "0.0.1",
  "provider": "aws",
  "description": "A Terraform Module for how to run Consul on AWS using Terraform and Packer",
  "source": "https://github.com/hashicorp/terraform-aws-consul",
  "published_at": "2017-09-14T23:22:44.793647Z",
  "downloads": 113,
  "verified": false,
  "root": {
    "path": "",
    "readme": "# Consul AWS Module\n\nThis repo contains a Module for how to deploy a [Consul]...",
    "empty": false,
    "inputs": [
      {
        "name": "ami_id",
        "description": "The ID of the AMI to run in the cluster. ...",
        "default": "\"\""
      },
      {
        "name": "aws_region",
        "description": "The AWS region to deploy into (e.g. us-east-1).",
        "default": "\"us-east-1\""
      }
    ],
    "outputs": [
      {
        "name": "num_servers",
        "description": ""
      },
      {
        "name": "asg_name_servers",
        "description": ""
      }
    ],
    "dependencies": [],
    "resources": []
  },
  "submodules": [
    {
      "path": "modules/consul-cluster",
      "readme": "# Consul Cluster\n\nThis folder contains a [Terraform](https://www.terraform.io/) ...",
      "empty": false,
      "inputs": [
        {
          "name": "cluster_name",
          "description": "The name of the Consul cluster (e.g. consul-stage). This variable is used to namespace all resources created by this module.",
          "default": ""
        },
        {
          "name": "ami_id",
          "description": "The ID of the AMI to run in this cluster. Should be an AMI that had Consul installed and configured by the install-consul module.",
          "default": ""
        }
      ],
      "outputs": [
        {
          "name": "asg_name",
          "description": ""
        },
        {
          "name": "cluster_size",
          "description": ""
        }
      ],
      "dependencies": [],
      "resources": [
        {
          "name": "autoscaling_group",
          "type": "aws_autoscaling_group"
        },
        {
          "name": "launch_configuration",
          "type": "aws_launch_configuration"
        }
      ]
    }
  ],
  "providers": [
    "aws",
    "azurerm"
  ],
  "versions": [
    "0.0.1"
  ]
}

Get a Specific Module

This endpoint returns the specified version of a module for a single provider.

Method Path Produces
GET /v1/modules/:namespace/:name/:provider/:version application/json

Parameters

  • namespace (string: <required>) - The user the module is owned by. This is required and is specified as part of the URL path.

  • name (string: <required>) - The name of the module. This is required and is specified as part of the URL path.

  • provider (string: <required>) - The name of the provider. This is required and is specified as part of the URL path.

  • version (string: <required>) - The version of the module. This is required and is specified as part of the URL path.

Sample Request

$ curl \
    https://registry.terraform.io/v1/modules/hashicorp/consul/aws/0.0.1

Sample Response

Note this response has has some fields trimmed for clarity.

{
  "id": "hashicorp/consul/aws/0.0.1",
  "owner": "gruntwork-team",
  "namespace": "hashicorp",
  "name": "consul",
  "version": "0.0.1",
  "provider": "aws",
  "description": "A Terraform Module for how to run Consul on AWS using Terraform and Packer",
  "source": "https://github.com/hashicorp/terraform-aws-consul",
  "published_at": "2017-09-14T23:22:44.793647Z",
  "downloads": 113,
  "verified": false,
  "root": {
    "path": "",
    "readme": "# Consul AWS Module\n\nThis repo contains a Module for how to deploy a [Consul]...",
    "empty": false,
    "inputs": [
      {
        "name": "ami_id",
        "description": "The ID of the AMI to run in the cluster. ...",
        "default": "\"\""
      },
      {
        "name": "aws_region",
        "description": "The AWS region to deploy into (e.g. us-east-1).",
        "default": "\"us-east-1\""
      }
    ],
    "outputs": [
      {
        "name": "num_servers",
        "description": ""
      },
      {
        "name": "asg_name_servers",
        "description": ""
      }
    ],
    "dependencies": [],
    "resources": []
  },
  "submodules": [
    {
      "path": "modules/consul-cluster",
      "readme": "# Consul Cluster\n\nThis folder contains a [Terraform](https://www.terraform.io/) ...",
      "empty": false,
      "inputs": [
        {
          "name": "cluster_name",
          "description": "The name of the Consul cluster (e.g. consul-stage). This variable is used to namespace all resources created by this module.",
          "default": ""
        },
        {
          "name": "ami_id",
          "description": "The ID of the AMI to run in this cluster. Should be an AMI that had Consul installed and configured by the install-consul module.",
          "default": ""
        }
      ],
      "outputs": [
        {
          "name": "asg_name",
          "description": ""
        },
        {
          "name": "cluster_size",
          "description": ""
        }
      ],
      "dependencies": [],
      "resources": [
        {
          "name": "autoscaling_group",
          "type": "aws_autoscaling_group"
        },
        {
          "name": "launch_configuration",
          "type": "aws_launch_configuration"
        }
      ]
    }
  ],
  "providers": [
    "aws",
    "azurerm"
  ],
  "versions": [
    "0.0.1"
  ]
}

Download a Specific Module

This endpoint downloads the specified version of a module for a single provider.

A successful response has no body, and includes the URL from which the module version's source can be downloaded in the X-Terraform-Get header. Note that this URL may contain special syntax interpreted by Terraform via go-getter. See the go-getter documentation for details.

Method Path Produces
GET /v1/modules/:namespace/:name/:provider/:version/download application/json

Parameters

  • namespace (string: <required>) - The user the module is owned by. This is required and is specified as part of the URL path.

  • name (string: <required>) - The name of the module. This is required and is specified as part of the URL path.

  • provider (string: <required>) - The name of the provider. This is required and is specified as part of the URL path.

  • version (string: <required>) - The version of the module. This is required and is specified as part of the URL path.

Sample Request

$ curl -i \
    https://registry.terraform.io/v1/modules/hashicorp/consul/aws/0.0.1/download

Sample Response

HTTP/1.1 204 No Content
Content-Length: 0
X-Terraform-Get: https://api.github.com/repos/hashicorp/terraform-aws-consul/tarball/v0.0.1//*?archive=tar.gz

Download the Latest Version of a Module

This endpoint downloads the latest version of a module for a single provider.

It returns a 302 redirect whose Location header redirects the client to the download endpoint (above) for the latest version.

Method Path Produces
GET /v1/modules/:namespace/:name/:provider/download application/json

Parameters

  • namespace (string: <required>) - The user the module is owned by. This is required and is specified as part of the URL path.

  • name (string: <required>) - The name of the module. This is required and is specified as part of the URL path.

  • provider (string: <required>) - The name of the provider. This is required and is specified as part of the URL path.

  • version (string: <required>) - The version of the module. This is required and is specified as part of the URL path.

Sample Request

$ curl -i \
    https://registry.terraform.io/v1/modules/hashicorp/consul/aws/download

Sample Response

HTTP/1.1 302 Found
Location: /v1/modules/hashicorp/consul/aws/0.0.1/download
Content-Length: 70
Content-Type: text/html; charset=utf-8

<a href="/v1/modules/hashicorp/consul/aws/0.0.1/download">Found</a>.

HTTP Status Codes

The API follows regular HTTP status semantics. To make implementing a complete client easier, some details on our policy and potential future status codes are listed below. A robust client should consider how to handle all of the following.

  • Success: Return status is 200 on success with a body or 204 if there is no body data to return.
  • Redirects: Moved or aliased endpoints redirect with a 301. Endpoints redirecting to the latest version of a module may redirect with 302 or 307 to indicate that they logically point to different resources over time.
  • Client Errors: Invalid requests will receive the relevant 4xx status. Except where noted below, the request should not be retried.
  • Rate Limiting: Clients placing excessive load on the service might be rate-limited and receive a 429 code. This should be interpreted as a sign to slow down, and wait some time before retrying the request.
  • Service Errors: The usual 5xx errors will be returned for service failures. In all cases it is safe to retry the request after receiving a 5xx response.
  • Load Shedding: A 503 response indicates that the service is under load and can't process your request immediately. As with other 5xx errors you may retry after some delay, although clients should consider being more lenient with retry schedule in this case.

Error Responses

When a 4xx or 5xx status code is returned. The response payload will look like the following example:

{
  "errors": [
    "something bad happened"
  ]
}

The errors key is a list containing one or more strings where each string describes an error that has occurred.

Note that it is possible that some 5xx errors might result in a response that is not in JSON format above due to being returned by an intermediate proxy.

Pagination

Endpoints that return lists of results use a common pagination format.

They accept positive integer query variables offset and limit which have the usual SQL-like semantics. Each endpoint will have a sane default limit and a default offset of 0. Each endpoint will also apply a sane maximum limit, requesting more results will just result in the maximum limit being used.

The response for a paginated result set will look like:

{
  "meta": {
    "limit": 15,
    "current_offset": 15,
    "next_offset": 30,
    "prev_offset": 0,
  },
  "<object name>": []
}

Note that:

  • next_offset will only be present if there are more results available.
  • prev_offset will only be present if not at offset = 0.
  • limit is the actual limit that was applied, it may be lower than the requested limit param.
  • The key for the result array varies based on the endpoint and will be the type of result pluralized, for example modules.