Streaming ingestion HTTP request

Article
08/12/2024

Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer

Request verb and resource

Action	HTTP verb	HTTP resource
Ingest	POST	`/v1/rest/ingest/{database}/{table}?{additional parameters}`

Request parameters

Parameter	Description	Required/Optional
`{database}`	Name of the target database for the ingestion request	Required
`{table}`	Name of the target table for the ingestion request	Required

Additional parameters

Additional parameters are formatted as URL query {name}={value} pairs, separated by the & character.

Parameter	Description	Required/Optional
`streamFormat`	Specifies the format of the data in the request body. The value should be one of: `CSV`, `TSV`, `SCsv`, `SOHsv`, `PSV`, `JSON`, `MultiJSON`, `Avro`. For more information, see Supported Data Formats.	Required
`mappingName`	The name of the pre-created ingestion mapping defined on the table. For more information, see Data Mappings. The way to manage pre-created mappings on the table is described here.	Optional, but Required if `streamFormat` is one of `JSON`, `MultiJSON`, or `Avro`

For example, to ingest CSV-formatted data into table Logs in database Test, use:

POST https://help.kusto.windows.net/v1/rest/ingest/Test/Logs?streamFormat=Csv HTTP/1.1

To ingest JSON-formatted data with pre-created mapping mylogmapping, use:

POST https://help.kusto.windows.net/v1/rest/ingest/Test/Logs?streamFormat=Json&mappingName=mylogmapping HTTP/1.1

Request headers

The following table contains the common headers for query and management operations.

Standard header	Description	Required/Optional
`Accept`	Set this value to `application/json`.	Optional
`Accept-Encoding`	Supported encodings are `gzip` and `deflate`.	Optional
`Authorization`	See authentication.	Required
`Connection`	Enable `Keep-Alive`.	Optional
`Content-Length`	Specify the request body length, when known.	Optional
`Content-Encoding`	Set to `gzip` but the body must be gzip-compressed	Optional
`Expect`	Set to `100-Continue`.	Optional
`Host`	Set to the domain name to which you sent the request (such as, `help.kusto.windows.net`).	Required

The following table contains the common custom headers for query and management operations. Unless otherwise indicated, the headers are for telemetry purposes only, and have no functionality impact.

Custom header	Description	Required/Optional
`x-ms-app`	The (friendly) name of the application making the request.	Optional
`x-ms-user`	The (friendly) name of the user making the request.	Optional
`x-ms-user-id`	Same as `x-ms-user`.	Optional
`x-ms-client-request-id`	A unique identifier for the request.	Optional
`x-ms-client-version`	The (friendly) version identifier for the client making the request. Required in scenarios, where it's used to identify the request, such as canceling a running query.	Optional/Required

Body

The body is the actual data to be ingested. The textual formats should use UTF-8 encoding.

Examples

The following example shows the HTTP POST request for ingesting JSON content:

POST https://help.kusto.windows.net/v1/rest/ingest/Test/Logs?streamFormat=Json&mappingName=mylogmapping HTTP/1.1

Request headers:

Authorization: Bearer ...AzureActiveDirectoryAccessToken...
Accept-Encoding: deflate
Accept-Encoding: gzip
Connection: Keep-Alive
Content-Length: 161
Host: help.kusto.windows.net
x-ms-client-request-id: MyApp.Ingest;5c0656b9-37c9-4e3a-a671-5f83e6843fce
x-ms-user-id: [email protected]
x-ms-app: MyApp

Request body:

{"Timestamp":"2018-11-14 11:34","Level":"Info","EventText":"Nothing Happened"}
{"Timestamp":"2018-11-14 11:35","Level":"Error","EventText":"Something Happened"}

The following example shows the HTTP POST request for ingesting the same compressed data.

POST https://help.kusto.windows.net/v1/rest/ingest/Test/Logs?streamFormat=Json&mappingName=mylogmapping HTTP/1.1