# Add a Comment
Creating another Topic with another request
POST /api/createComment HTTP/1.1
Content-Type: application/json
{
"body":"A 1st Comment on Topic #1",
"topicId":"5dde6aab5aad123cee5da6c7",
"parentId":"5dde6aab5aad123cee5da6c7"
}
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Beside of the comment.body we also provided a topicId to link that comment to it's "root" Topic and a parentId wich will directly point to it's parent. A parent might be the root topic or another comment in case of a "reply".
# Events collection
Comment.created got added to events:
[...] // older events above
{
"_id" : ObjectId("5dde77775aad123cee5da6cc"),
"aggregateId" : ObjectId("5dde77775aad123cee5da6cb"),
"aggregateVersion" : NumberInt(0),
"type" : "Comment.created",
"payload" : {
"body" : "A 1st Comment on Topic #1",
"topicId" : "5dde6aab5aad123cee5da6c7",
"parentId" : "5dde6aab5aad123cee5da6c7",
"countReplies" : NumberInt(0)
},
"context" : {
"reqId" : "424f2987-2281-4779-9a18-7b8bd5eaf9d4"
}
}
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# Topics collection
1st Topic got an incremented counter countComments:
{
"_id" : ObjectId("5dde6aab5aad123cee5da6c7"),
"title" : "This is a 1st Topic",
"countComments" : NumberInt(1)
}
{
"_id" : ObjectId("5dde75915aad123cee5da6c9"),
"title" : "This is a 2nd Topic",
"countComments" : NumberInt(0)
}
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# Threads collection
1st Thread got an incremented counter countComments and the comment got pushed to children:
{
"_id" : ObjectId("5dde6aab5aad123cee5da6c7"),
"title" : "This is a 1st Topic",
"countComments" : NumberInt(1),
"children" : [
{
"_id" : ObjectId("5dde77775aad123cee5da6cb"),
"body" : "A 1st Comment on Topic #1",
"countReplies" : NumberInt(0)
}
]
}
{
"_id" : ObjectId("5dde75915aad123cee5da6c9"),
"title" : "This is a 2nd Topic",
"countComments" : NumberInt(0),
"children" : [
]
}
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# Comments collection
{
"_id" : ObjectId("5dde77775aad123cee5da6cb"),
"body" : "A 1st Comment on Topic #1",
"topicId" : "5dde6aab5aad123cee5da6c7",
"parentId" : "5dde6aab5aad123cee5da6c7",
"countReplies" : NumberInt(0)
}
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