neo4j - How to use parameters correctly in Transactional Cypher HTTP -

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I'm a bit stuck I'm trying to use the parameters of my HP request to reduce the overhead, but I did not know why this would not work: 

  {"statements": [statement ":" Matt (n: person) WHERE n.name = {name} SET n.dogs {{"}" Returns: "{{"} ":" {{"}": "", "andres", "dogs": 5}, {"name": "Michael", "dogs": 3}, {"name" "Someone", "dogs": 2}]}]}

I

I know that given in the manual Open equally a transaction with a statement from Dahrnon and try to feed different "lines" as Parametrs first transaction I / COMMIT.

What am I missing?

I have modified an answer since that which allows for the majority of the parameter 'set' Seems to work by using a FOREACH statement. {{"Parameter": {{"props": {{"userid": "177032492760", "Username": "John"}, "Statement": "", "Statement": "User Name": "User Name": "User Name": "Mike"}, {"User ID": "100007496328", "Username": "Wilber"}]}, "Statement": "FOREACH Sahara} | Merge (user: people {id: p.userid}) create SET user.name = p.username) "}]}


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