update the thrift meta file for thriftIDL

[ShanniLi]

r @prashantv @Raynos @junchaowu cc @blampe

@Raynos suggested us to move forward implementing a default handler for thriftIDL ... Node example is here: #1332

[prashantv]

As I mentioned earlier, can we please think about the interface that is appropriate here

• map<string,string> is a lot more future proof for multiple Thrift file services than string
• any non-trivial return should be a struct

[Raynos]

We can always have oneThriftIdl and manyThriftIdl

Or we can fix it right now.

[prashantv]

Let's fix it now, it's not hard to make a new struct with a map.

[Raynos]

Cool let's fix it.

[ShanniLi]

Meta is implemented per service, right?

[Raynos]

The map is to future proof for import statements.

[prashantv]

There is a single Meta service for each Hyperbahn service. One hyperbahn service can expose multiple Thrift services though.

We also may have multiple Thrift files due to imports.

[ShanniLi]

I see. Makes sense.

[ShanniLi]

So, something like the following? struct ThriftIDLs { 1: required map<string,string> idls }

ThriftIDLs thriftIDL()

[prashantv]

yep, I think the map should be map<string, string> idls, but I think that's good enough for now

And we should add a comment for the map explaining what idls is (map from filename -> contents)

[Raynos]

@ShanniLi

We need also 2: required entryPoint to tell tcurl which file is the root that imports the others. Otherwise hacks

[ShanniLi]

@Raynos fixed.

[prashantv]

lgtm