Lookup Table API

This feature is in beta

This requires that you have the lookup_table feature enabled in Amplitude. Contact your Amplitude account manager if you need help.

Introduction

Lookup Tables let you augment user and event properties. Instead of using formulas, you can upload a CSV file that contains property mappings to derive new properties.

To create a Lookup property, create a Lookup Table to reference. You can retrieve and update each of the tables using the API. Lookup Tables are identified by the name and are scoped per project.

Get more examples for this API

Run our Postman Collection for a full library of example requests and responses for this API.

Endpoints

Region	Endpoint
Standard Server	https://amplitude.com/api/2/lookup_table
EU Residency Server	https://analytics.eu.amplitude.com/api/2/lookup_table

Authorization

This API uses Basic Auth, using the API key and secret key for your project. Pass your API key in the request header like {{api-key}}:{{secret-key}}. api-key replaces username, and secret-key replaces the password.

Considerations

The max file size is 100 MB and the file can not have more than 1,000,000 rows.

Create a Lookup Table

Create a Lookup Table object by uploading a CSV that maps an existing property to the new properties to create. Send the request with the type multipart/form-data type.

Parameters

Name	Description
name	Required. String. Name of the table.
file	Required. File. A CSV representation of the mappings.

Example request

cURLHTTP

curl -L -X POST 'https://amplitude.com/api/2/lookup_table/:name' \
     -u API_KEY:SECRET_KEY \
     -F 'file=@"/path/to/file.csv"' \

POST '/api/2/lookup_table/:name' HTTP/1.1
Host: api2.amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name=":name"; filename="file.csv"
Content-Type: text/csv

(data)
----WebKitFormBoundary7MA4YWxkTrZu0gW

Responses

SuccessHTTP 400: Bad RequestHTTP 409: ConflictHTTP 413: Payload Too Large

{
    "name": "skuToMetadata",
    "column_headers": [
        "Product Category",
        "Product Name"
    ],
    "created_at": "2021-07-15T21:04:23.000593",
    "created_by": "rest",
    "last_modified_at": "2021-07-16T19:14:11.627477",
    "last_modified_by": "rest"
}

HTTP 400: Bad Request

• Invalid file

• File type is invalid. Accepted file types are text/csv, text/plain, and text/tab-separated-values.

• File is empty

• Found duplicate column header. There's a duplicate column, please remove the column so the file can be processed.

HTTP 409: Conflict (Conflict, name already exists)

The table already exists

HTTP 413: Payload Too Large

The file exceeds the max size.

Retrieve a Lookup Table

Retrieve a Lookup Table by its name.

Parameters

Name	Description
name	Required. String. Name of the table.

Example request

cURLHTTP

curl -L -X GET 'https://amplitude.com/api/2/lookup_table/:name' \
     -u API_KEY:SECRET_KEY

GET /api/2/lookup_table/:name HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Response

SuccessHTTP 404: Not found

{
    "name": "skuToMetadata",
    "column_headers": [
        "Product Category",
        "Product Name"
    ],
    "created_at": "2021-07-15T21:04:23.000593",
    "created_by": "rest",
    "last_modified_at": "2021-07-16T19:14:11.627477",
    "last_modified_by": "rest"
}

HTTP 404: Not found

The table wasn't found because it wasn't created

Update a Lookup Table

Update a Lookup Table's columns and data.

Parameters

Name	Description
name	Required. String. Name of the table.
file	Required. File. A CSV representation of the mappings.

Example request

cURLHTTP

curl -L -X PATCH 'https://amplitude.com/api/2/lookup_table/:name' \
     -u API_KEY:SECRET_KEY
     -F 'file=@"/path/to/file.csv"' \

PATCH /api/2/lookup_table/:name HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name=":name"; filename="file.csv"
Content-Type: text/csv

(data)
----WebKitFormBoundary7MA4YWxkTrZu0gW

Response

SuccessHTTP 400: Bad RequestHTTP 404: Not foundHTTP 413: Payload Too Large

{
    "name": "skuToMetadata",
    "column_headers": [
        "Product Category",
        "Product Name"
    ],
    "created_at": "2021-07-15T21:04:23.000593",
    "created_by": "rest",
    "last_modified_at": "2021-07-16T19:14:11.627477",
    "last_modified_by": "rest"
}

HTTP 400: Bad Request

• Requires at least one modification. There should be a file attached.
• File type is invalid. Accepted file types are text/csv, text/plain, and text/tab-separated-values.
• File is empty.
• Found duplicate column header. There's a duplicate column, please remove the column so the file can be processed.

HTTP 404: Not found

The table wasn't found because it wasn't created

HTTP 413: Payload Too Large

The file exceeds the max size.

Delete a Lookup Table

Delete a Lookup Table.

Parameters

Name	Description
name	Required. String. Name of the table.
force	Optional. Boolean. Delete the associated properties. Defaults to false.

Example request

cURLHTTP

curl -L -X DELETE 'https://amplitude.com/api/2/lookup_table/:name' \
     -u API_KEY:SECRET_KEY

DELETE /api/2/lookup_table/:lookup_table_name?force=True HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Response

SuccessHTTP 404: Not found

{
    "name": "skuToMetadata",
    "success": true
}

HTTP 404: Not found

The table wasn't found.

List all Lookup Tables

List all the Lookup Tables for the project.

Example request

cURLHTTP

curl -L -X GET 'https://amplitude.com/api/2/lookup_table' \
     -u API_KEY:SECRET_KEY

GET /api/2/lookup_table HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret:key}}

Response

{
    "data": [
        {
            "name": "isbnToMetadata",
            "column_headers": [
                "Genres",
                "Authors"
            ],
            "created_at": "2021-07-15T21:04:23.000593",
            "created_by": "rest",
            "last_modified_at": "2021-07-16T19:14:11.627477",
            "last_modified_by": "rest"
        },
        {
            "name": "skuToMetadata",
            "column_headers": [
                "Product Category",
                "Product Name"
            ],
            "created_at": "2021-07-16T19:28:18.070073",
            "created_by": "rest",
            "last_modified_at": "2021-07-16T19:28:18.070073",
            "last_modified_by": "rest"
        }
    ]
}

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Last update: 2022-07-15