Combining apoc.periodic.commit in a 3 step statement with API call
I am trying to obtain some values from a match statement and use them as variables in the URL of a call apoc.load.json.
The API I am calling has various pages so I have to paginate. For that I am using apoc.periodic.commit as described in
Neo4j APOC: Importing data from Strava's paginated JSON API
So this would be something like:
match (p:Person)
with p.name as all_names;
this completes the first step and passes the all_names string to the nest step
call apoc.periodic.commit("
match (import:Import)
with all_names, import.page as page
with 'https://someurl.com/api/q='+all_names+'&p='+page+' as url
call apoc.load.json(url) yield value
with all_names, value.address as addr
merge (a:Address address:addr<-(:lives_in)-(p:Person name:all_names)
foreach (//some code to go through the pagination) r
return count
"), ;
This completes the second step
MATCH (import:Import) set import.page ='1';
This completes the third step
Question: How do I combine the 3 steps in one statement I can execute and that iterates over all the names in the first statement? I have tried the apoc.periodic.rock_n_roll_while procedure but I don't get any results from the API call. I have the second step working but wondering if there is a way to do this in Cypher or if I have to resort to Java or Python?
Thank you.
neo4j neo4j-apoc
edited Nov 13 '18 at 22:08
Guy Coder
15.3k43983
asked Nov 13 '18 at 22:01
fnbragafnbraga
32
add a comment |
I am trying to obtain some values from a match statement and use them as variables in the URL of a call apoc.load.json.
The API I am calling has various pages so I have to paginate. For that I am using apoc.periodic.commit as described in
Neo4j APOC: Importing data from Strava's paginated JSON API
So this would be something like:
match (p:Person)
with p.name as all_names;
this completes the first step and passes the all_names string to the nest step
call apoc.periodic.commit("
match (import:Import)
with all_names, import.page as page
with 'https://someurl.com/api/q='+all_names+'&p='+page+' as url
call apoc.load.json(url) yield value
with all_names, value.address as addr
merge (a:Address address:addr<-(:lives_in)-(p:Person name:all_names)
foreach (//some code to go through the pagination) r
return count
"), ;
This completes the second step
MATCH (import:Import) set import.page ='1';
This completes the third step
Question: How do I combine the 3 steps in one statement I can execute and that iterates over all the names in the first statement? I have tried the apoc.periodic.rock_n_roll_while procedure but I don't get any results from the API call. I have the second step working but wondering if there is a way to do this in Cypher or if I have to resort to Java or Python?
Thank you.
neo4j neo4j-apoc
edited Nov 13 '18 at 22:08
Guy Coder
15.3k43983
asked Nov 13 '18 at 22:01
fnbragafnbraga
32
add a comment |
I am trying to obtain some values from a match statement and use them as variables in the URL of a call apoc.load.json.
The API I am calling has various pages so I have to paginate. For that I am using apoc.periodic.commit as described in
Neo4j APOC: Importing data from Strava's paginated JSON API
So this would be something like:
match (p:Person)
with p.name as all_names;
this completes the first step and passes the all_names string to the nest step
call apoc.periodic.commit("
match (import:Import)
with all_names, import.page as page
with 'https://someurl.com/api/q='+all_names+'&p='+page+' as url
call apoc.load.json(url) yield value
with all_names, value.address as addr
merge (a:Address address:addr<-(:lives_in)-(p:Person name:all_names)
foreach (//some code to go through the pagination) r
return count
"), ;
This completes the second step
MATCH (import:Import) set import.page ='1';
This completes the third step
Question: How do I combine the 3 steps in one statement I can execute and that iterates over all the names in the first statement? I have tried the apoc.periodic.rock_n_roll_while procedure but I don't get any results from the API call. I have the second step working but wondering if there is a way to do this in Cypher or if I have to resort to Java or Python?
Thank you.
neo4j neo4j-apoc
edited Nov 13 '18 at 22:08
Guy Coder
15.3k43983
asked Nov 13 '18 at 22:01
fnbragafnbraga
32
I am trying to obtain some values from a match statement and use them as variables in the URL of a call apoc.load.json.
The API I am calling has various pages so I have to paginate. For that I am using apoc.periodic.commit as described in
Neo4j APOC: Importing data from Strava's paginated JSON API
So this would be something like:
match (p:Person)
with p.name as all_names;
this completes the first step and passes the all_names string to the nest step
call apoc.periodic.commit("
match (import:Import)
with all_names, import.page as page
with 'https://someurl.com/api/q='+all_names+'&p='+page+' as url
call apoc.load.json(url) yield value
with all_names, value.address as addr
merge (a:Address address:addr<-(:lives_in)-(p:Person name:all_names)
foreach (//some code to go through the pagination) r
return count
"), ;
This completes the second step
MATCH (import:Import) set import.page ='1';
This completes the third step
Question: How do I combine the 3 steps in one statement I can execute and that iterates over all the names in the first statement? I have tried the apoc.periodic.rock_n_roll_while procedure but I don't get any results from the API call. I have the second step working but wondering if there is a way to do this in Cypher or if I have to resort to Java or Python?
Thank you.
neo4j neo4j-apoc
neo4j neo4j-apoc
edited Nov 13 '18 at 22:08
Guy Coder
15.3k43983
asked Nov 13 '18 at 22:01
fnbragafnbraga
32
edited Nov 13 '18 at 22:08
Guy Coder
15.3k43983
asked Nov 13 '18 at 22:01
fnbragafnbraga
32
edited Nov 13 '18 at 22:08
Guy Coder
15.3k43983
edited Nov 13 '18 at 22:08
Guy Coder
15.3k43983
edited Nov 13 '18 at 22:08
Guy Coder
15.3k43983
15.3k43983
asked Nov 13 '18 at 22:01
fnbragafnbraga
32
asked Nov 13 '18 at 22:01
fnbragafnbraga
32
asked Nov 13 '18 at 22:01
fnbragafnbraga
32
32
add a comment |
add a comment |
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