If you aren't creating them in go, it's probably not serializing the key names for you properly. The default for bson is to lowercase the keys, so you need to specify it if you want something else. Also note that you have a typo in OrgWhoAmI
for json:"childrenReemptionCodes"
(should be Redemption, I'm guessing). You can specify both bson and json separately if you want them to be different.
type OrgWhoAmI struct {
FriendlyName string `bson:"friendlyName" json:"friendlyName"`
RedemptionCode string `bson:"redemptionCode" json:"redemptionCode"`
StartUrls []StartUrl `bson:"startUrls" json:"startUrls"`
Status string `bson:"status" json:"status"`
Children []OrgChildren `bson:"childrenRedemptionCodes" json:"childrenRedemptionCodes"`
}
type StartUrl struct {
DisplayName string `bson:"displayName" json:"displayName"`
URL string `bson:"url" json:"url"`
}
type OrgChildren struct {
FriendlyName string `bson:"childFriendlyName" json:"childFriendlyName"`
RedemptionCode string `bson:"childRedemptionCode" json:"childRedemptionCode"`
}