Lookup Table API 2

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.

Authentication

API uses basic authentication, using the API key and secret key for your project. Pass base64-encoded credentials in the request header like {api-key}:{secret-key}. api-key replaces username, and secret-key replaces the password.

Your authorization header should look something like this:

For more information, see Find your API Credentials

Endpoints

Considerations

The CSV file must follow these requirements:

• The max file size is 100 MB and the file can't have more than 1,000,000 rows.
• The first row must contain column names/headers.
• The first column must correspond to the mapping property value and must contain unique values. Lookup Tables search for exact matches, and are case-sensitive.
• Separate columns with commas.
• Separate rows with line breaks.
• If a field value contains commas or quotes, wrap it in double quotation marks. The first double quote signifies the beginning of the column data, and the last double quote marks the end. If the value contains a string with double quotes, these Amplitude replaces them with two double quotes "".

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

Example request

1curl -L -X POST 'https://data-api.amplitude.com/api/3/lookup_table' \
2        -u API_KEY:SECRET_KEY \
3        -F 'file=@"/path/to/file.csv"' \
4        -F 'name=":name"' \
5        -F 'key=":key"' \
6        -F 'property="{\"value\": \":propertyName\", \"type\": \":propertyType\", \"groupType\":  \":propertyGroupType\"}";type=application/json'

 1POST '/api/3/lookup_table' HTTP/1.1
 2Host: data-api.amplitude.com
 3Authorization: Basic {api-key}:{secret-key}
 4Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
 5
 6------WebKitFormBoundary7MA4YWxkTrZu0gW
 7Content-Disposition: form-data; name="key"
 8
 9:key
10------WebKitFormBoundary7MA4YWxkTrZu0gW
11Content-Disposition: form-data; name="name"
12
13:name
14----WebKitFormBoundary7MA4YWxkTrZu0gW
15Content-Disposition: form-data; name=":name"; filename="file.csv"
16Content-Type: text/csv
17
18(data)
19----WebKitFormBoundary7MA4YWxkTrZu0gW
20Content-Disposition: form-data; name="property"
21Content-Type: application/json
22
23{"value": ":propertyName", "type": ":propertyType", "groupType": ":propertyGroupType"}
24------WebKitFormBoundary7MA4YWxkTrZu0gW--

Response

 1{
 2"appId": "<projectId>",
 3"name": "example-lookup",
 4"columnHeaders": [
 5    "Language"
 6],
 7"createdAt": 1715912516,
 8"createdBy": "api",
 9"lastModifiedAt": 1715912516,
10"lastModifiedBy": "api",
11"isDeleted": false,
12"isConfigured": true,
13"keyColumnHeader": "SKU",
14"keyProperty": {
15    "type": "event",
16    "value": "example",
17    "groupType": "User"
18},
19"fileName": "lookup-table-example.csv",
20"rowCount": 3,
21"sizeBytes": 0,
22}

Retrieve a Lookup Table

Retrieve a Lookup Table by its name.

Parameters

Example request

1curl -L -X GET 'https://data-api.amplitude.com/api/3/lookup_table/:name' \
2        -u API_KEY:SECRET_KEY

1GET /api/3/lookup_table/:name HTTP/1.1
2Host: data-api.amplitude.com
3Authorization: Basic {api-key}:{secret-key}

Response

 1{
 2    "appId": "<projectId>",
 3    "name": "example-lookup",
 4    "columnHeaders": [
 5        "Language"
 6    ],
 7    "createdAt": 1715912516,
 8    "createdBy": "api",
 9    "lastModifiedAt": 1715912516,
10    "lastModifiedBy": "api",
11    "isDeleted": false,
12    "isConfigured": true,
13    "keyColumnHeader": "SKU",
14    "keyProperty": {
15        "type": "event",
16        "value": "example",
17        "groupType": "User"
18    },
19    "fileName": "lookup-table-example.csv",
20    "rowCount": 3,
21    "sizeBytes": 5,
22}

Download a CSV

Download the lookup table object as a CSV. Any incremental changes are applied in the downloaded file.

Parameters

Example request

1curl -L -X GET 'https://data-api.amplitude.com/api/3/lookup_table/:name/csv' \
2        -u API_KEY:SECRET_KEY

1GET /api/3/lookup_table/:name/csv HTTP/1.1
2Host: data-api.amplitude.com
3Authorization: Basic {api-key}:{secret-key}

Override a Lookup Table

Override a Lookup Table object by uploading a CSV that replaces the CSV already uploaded to Amplitude. Send the request with the type multipart/form-data type.

Parameters

Example request

1curl -L -X PUT 'https://data-api.amplitude.com/api/3/lookup_table/:name' \
2        -u API_KEY:SECRET_KEY \
3        -F 'file=@"/path/to/file.csv"' \
4        -F 'property="{\"value\": \":propertyName\", \"type\": \":propertyType\", \"groupType\":  \":propertyGroupType\"}";type=application/json'

 1PUT '/api/3/lookup_table/:name' HTTP/1.1
 2Host: data-api.amplitude.com
 3Authorization: Basic {api-key}:{secret-key}
 4Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
 5 
 6----WebKitFormBoundary7MA4YWxkTrZu0gW
 7Content-Disposition: form-data; name=":name"; filename="file.csv"
 8Content-Type: text/csv
 9 
10(data)
11----WebKitFormBoundary7MA4YWxkTrZu0gW
12Content-Disposition: form-data; name="property"
13Content-Type: application/json
14 
15"value": ":propertyName", "type": ":propertyType", "groupType": ":propertyGroupType"
16------WebKitFormBoundary7MA4YWxkTrZu0gW--

Response

 1{
 2    "appId": "<projectId>",
 3    "name": "example-lookup",
 4    "columnHeaders": [
 5        "Language"
 6    ],
 7    "createdAt": 1715912516,
 8    "createdBy": "api",
 9    "lastModifiedAt": 1715912516,
10    "lastModifiedBy": "api",
11    "isDeleted": false,
12    "isConfigured": true,
13    "keyColumnHeader": "SKU",
14    "keyProperty": {
15        "type": "event",
16        "value": "example",
17        "groupType": "User"
18    },
19    "fileName": "lookup-table-example.csv",
20    "rowCount": 3,
21    "sizeBytes": 0,
22}

Update a Lookup Table

Update a Lookup Table's columns and data. If you provide a CSV file, the file is merged with the existing CSV within Amplitude. This allows for incremental updates of the CSV, instead of a complete replacement.

Parameters

Example request

1curl -L -X PATCH 'https://data-api.amplitude.com/api/3/lookup_table/:name' \
2        -u API_KEY:SECRET_KEY
3        -F 'file=@"/path/to/file.csv"' \
4        -F 'property="{\"value\": \":propertyName\", \"type\": \":propertyType\", \"groupType\":  \":propertyGroupType\"}";type=application/json'

 1PATCH '/api/3/lookup_table/:name' HTTP/1.1
 2Host: data-api.amplitude.com
 3Authorization: Basic {api-key}:{secret-key}
 4Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
 5 
 6----WebKitFormBoundary7MA4YWxkTrZu0gW
 7Content-Disposition: form-data; name=":name"; filename="file.csv"
 8Content-Type: text/csv
 9 
10(data)
11----WebKitFormBoundary7MA4YWxkTrZu0gW
12Content-Disposition: form-data; name="property"
13Content-Type: application/json
14 
15"value": ":propertyName", "type": ":propertyType", "groupType": ":propertyGroupType"
16------WebKitFormBoundary7MA4YWxkTrZu0gW--

Response

 1{
 2    "appId": "<projectId>",
 3    "name": "example-lookup",
 4    "columnHeaders": [
 5        "Language"
 6    ],
 7    "createdAt": 1715912516,
 8    "createdBy": "api",
 9    "lastModifiedAt": 1715912516,
10    "lastModifiedBy": "api",
11    "isDeleted": false,
12    "isConfigured": true,
13    "keyColumnHeader": "SKU",
14    "keyProperty": {
15        "type": "event",
16        "value": "example",
17        "groupType": "User"
18    },
19    "fileName": "lookup-table-example.csv",
20    "rowCount": 3,
21    "sizeBytes": 0,
22}

Delete a Lookup Table

Delete a Lookup Table.

Parameters

Example request

1curl -L -X DELETE 'https://data-api.amplitude.com/api/3/lookup_table/:name' \
2        -u API_KEY:SECRET_KEY

1DELETE /api/3/lookup_table/:name HTTP/1.1
2Host: data-api.amplitude.com
3Authorization: Basic {api-key}:{secret-key}

Response

1{
2    "message": "Lookup table <:name> deleted successfully",
3    "success": true
4}

List all Lookup Tables

List all the Lookup Tables for the project.

Example request

1curl -L -X GET 'https://data-api.amplitude.com/api/3/lookup_table' \
2        -u API_KEY:SECRET_KEY

1GET /api/3/lookup_table HTTP/1.1
2Host: data-api.amplitude.com
3Authorization: Basic {api-key}:{secret:key}

Response

 1[
 2    {
 3        "appId": "<projectId>",
 4        "name": "example-lookup",
 5        "columnHeaders": [
 6            "Language"
 7        ],
 8        "createdAt": 1715912516,
 9        "createdBy": "api",
10        "lastModifiedAt": 1715912516,
11        "lastModifiedBy": "api",
12        "isDeleted": false,
13        "isConfigured": true,
14        "keyColumnHeader": "SKU",
15        "keyProperty": {
16            "type": "event",
17            "value": "example",
18            "groupType": "User"
19        },
20        "fileName": "lookup-table-example.csv",
21        "rowCount": 3,
22        "sizeBytes": 5,
23    },
24    {
25        "appId": "<projectId>",
26        "name": "example-lookup-2",
27        "columnHeaders": [
28            "Language"
29        ],
30        "createdAt": 1715912516,
31        "createdBy": "api",
32        "lastModifiedAt": 1715912516,
33        "lastModifiedBy": "api",
34        "isDeleted": false,
35        "isConfigured": true,
36        "keyColumnHeader": "SKU",
37        "keyProperty": {
38            "type": "event",
39            "value": "example",
40            "groupType": "User"
41        },
42        "fileName": "lookup-table-example.csv",
43        "rowCount": 50,
44        "sizeBytes": 10,
45    }
46]

Error Codes

All the above lookup table APIs share common error codes as described below.

Structure

Types