go-cosmosdb

go sdk for Azure Cosmos DB

• no _self links

• full support for partitioned collections

• simple interface

• supports all operations with user defined ids

• naming conventions follow the RestAPI https://docs.microsoft.com/en-us/rest/api/cosmos-db/

• it more closely follows the api of the official SDKs

  • https://docs.microsoft.com/python/api/pydocumentdb?view=azure-python
  • https://docs.microsoft.com/javascript/api/documentdb/?view=azure-node-latest

Usage

• instantiate a config struct. Set the keys, url and some other parameters.

• call the constructor New(cfg config)

• cosmosdb follows the hierarchy of Cosmos DB. This means that you can operate on the resource the current type represents. The database struct can work with resources that belong to a cosmos database, the Collection type can work with resources that belong to a collection.

• doc interface{} may seem weird in some contexts, e.g. DeleteDocument, why not use a signature like DeleteDocument(ctx context.Context, id string). The reason is that there are several ways to address the document. Either by self link, with or without _etag or by the id. All on collections with or without a partition key.

  • use _self if possible
  • if _etag is present, use it
  • otherwise use id
  • if neither exists -> error

Examples

Create Document

type Document struct {
    id string
}

newDoc, err := coll.CreateDocument(context.Background(), doc)

#FAQ