getMetadata: allow arbitrary request parameters

[c0b]

the REST API reference mentioned selectedFields [2], and all google cloud services support the fields parameter [3]; but from [1] I'm not seeing how can I pass these parameters?

1. https://googlecloudplatform.github.io/google-cloud-node/#/docs/bigquery/0.9.6/bigquery/table?method=getMetadata
2. https://cloud.google.com/bigquery/docs/reference/rest/v2/tables/get
3. https://developers.google.com/apis-explorer/#p/bigquery/v2/bigquery.tables.get

Background is we have some tens of thousands tables in bigquery want to figure out which ones are the most expensive ones (using the most storage), so write a little script to enumerate all table metadata, but it runs slow because each API call need to retrieve all metadata, want to use the fields to get only the needed information; if anyone knows a workaround, let me know.
(the http command here is an advanced version of curl; from https://httpie.org/)

$ access_token=$(gcloud auth application-default print-access-token)
$ http https://www.googleapis.com/bigquery/v2/projects/<projectId>/datasets/<datasetId>/tables/<tableId> \
 fields==id,numBytes,numLongTermBytes,numRows,creationTime,expirationTime,lastModifiedTime,type,location \
 access_token==$access_token
[...]
{
 "id": "<projectId>:<datasetId>.<tableId>",
 "numBytes": "112728076",
 "numLongTermBytes": "0",
 "numRows": "28431",
 "creationTime": "1505962477264",
 "expirationTime": "1513738477264",
 "lastModifiedTime": "1505962477264",
 "type": "TABLE",
 "location": "US"
}

[c0b]

I see the fields parameter is the use case to mitigate the problem resolved by GraphQL API, but is it possible to ask google services to have GraphQL API?

[callmehiphop]

@stephenplusplus I don't think it is very common for get/getMetadata to accept query parameters, however do you think we should add support for this in the common library?

[stephenplusplus]

I do! Best to be as raw as possible in the common layer.

[tejohnso]

@c0b have you tried eg getMetadata({fields: "lastModifiedTime"})?
It works in the storage module.

[c0b]

no; I did try that do not work in @google-cloud/bigquery@0.9.6; current getMetadata take one parameter only which is expected to be the callback function, if pass in an obj then the error is TypeError: callback is not a function

[c0b]

@tejohnso the storage module works because of #2626 storage has its own repo that has support of that

https://github.com/googleapis/nodejs-storage/search?q=getMetadata+path:src

[stephenplusplus]

This issue was moved to googleapis/nodejs-bigquery#11