List Delivery Metrics Summary from Destination

//native

type Segment = {

  token: string;

  baseUrl: string;

};

/**

 * List Delivery Metrics Summary from Destination

 * Get an event delivery metrics summary from a Destination.

Based on the granularity chosen, there are restrictions on the time range you can query:

**Minute**:

- Max time range: 4 hours

- Oldest possible start time: 48 hours in the past

**Hour**:

- Max Time range: 7 days

- Oldest possible start time: 7 days in the past

**Day**:

- Max time range: 14 days

- Oldest possible start time: 14 days in the past

 */

export async function main(

  auth: Segment,

  destinationId: string,

  sourceId: string | undefined,

  startTime: string | undefined,

  endTime: string | undefined,

  granularity: "DAY" | "HOUR" | "MINUTE" | undefined,

) {

  const url = new URL(

    `${auth.baseUrl}/destinations/${destinationId}/delivery-metrics`,

  );

  for (const [k, v] of [

    ["sourceId", sourceId],

    ["startTime", startTime],

    ["endTime", endTime],

    ["granularity", granularity],

  ]) {

    if (v !== undefined && v !== "" && k !== undefined) {

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Authorization: "Bearer " + auth.token,

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

    throw new Error(`${response.status} ${text}`);

  }

  return await response.text();

}