Timestamp returns an error on BigQuery when sent by Firebase Functions

问题

I'm trying to send timestamp field to BigQuery from Firebase Functions. I'm sending admin.firestore.FieldValue.serverTimestamp() and The field on BigQuery is TIMESTAMP type.

by i receive an error:

table.insert: {"errors":[{"errors":[{"message":"This field is not a record.","reason":"invalid"}]}],"response":{"kind":"bigquery#tableDataInsertAllResponse","insertErrors":[{"index":0,"errors":[{"reason":"invalid","location":"datetime","debugInfo":"","message":"This field is not a record."}]}]},"message":"A failure occurred during this request."}

My Code is:

exports.sessionsToBQ = functions.firestore
  .document("/Users/{userId}/Sessions/{sessionId}")
  .onWrite((change, context) => {

  const dataset = bigquery.dataset('App');
  const table = dataset.table('Sessions');
  tableName = 'Sessions'
  datasetName = 'App'

    dataset.exists().catch(err => {
      console.error(
        `dataset.exists: dataset ${datasetName} does not exist: ${JSON.stringify(
          err
        )}`
      )
      return err
    })

    //let table = dataset.table(tableName)
    table.exists().catch(err => {
      console.error(
        `table.exists: table ${tableName} does not exist: ${JSON.stringify(
          err
        )}`
      )
      return err
    })

    let row = {
      insertId: context.params.sessionId,
      json: {
        sessionId: context.params.sessionId,
        userId: context.params.userId,
        datetime: admin.firestore.FieldValue.serverTimestamp(),
        duration: change.after.data().duration,
        distance: change.after.data().distance,
        IP: change.after.data().IP
      },
    }

    return table.insert(row, { raw: true }).catch(err => {
      console.error(`table.insert: ${JSON.stringify(err)}`)
      return err
    })
  })

what I'm doing wrong? how to send correctly the current timestamp to big query?

回答1:

The issue resolved, By changing

admin.firestore.FieldValue.serverTimestamp()

with

Math.floor(Date.now() / 1000)

来源：https://stackoverflow.com/questions/49881487/timestamp-returns-an-error-on-bigquery-when-sent-by-firebase-functions